From 5247e64236e69d3af62168068d0e80077ed9e71f Mon Sep 17 00:00:00 2001
From: Lee Rowlands <lee.rowlands@previousnext.com.au>
Date: Wed, 13 Dec 2023 08:27:06 +1000
Subject: [PATCH] Issue #3400018 by mstrelan, xjm: Add declare(strict_types=1)
to all Functional JavaScript tests
---
.../tests/src/FunctionalJavascript/ActionFormAjaxTest.php | 2 ++
.../tests/src/FunctionalJavascript/AccessAnnouncementTest.php | 2 ++
.../tests/src/FunctionalJavascript/AlertsJsonFeedTest.php | 2 ++
.../tests/src/FunctionalJavascript/BigPipePreviewTest.php | 2 ++
.../tests/src/FunctionalJavascript/BigPipeRegressionTest.php | 2 ++
.../block/tests/src/FunctionalJavascript/BlockAddTest.php | 2 ++
.../src/FunctionalJavascript/BlockContextualLinksTest.php | 2 ++
.../block/tests/src/FunctionalJavascript/BlockDragTest.php | 2 ++
.../block/tests/src/FunctionalJavascript/BlockFilterTest.php | 2 ++
.../tests/src/FunctionalJavascript/BookJavascriptTest.php | 2 ++
.../ckeditor5/tests/src/FunctionalJavascript/AdminUiTest.php | 2 ++
.../src/FunctionalJavascript/CKEditor5AllowedTagsTest.php | 2 ++
.../tests/src/FunctionalJavascript/CKEditor5DialogTest.php | 2 ++
.../src/FunctionalJavascript/CKEditor5FragmentLinkTest.php | 2 ++
.../tests/src/FunctionalJavascript/CKEditor5OffCanvasTest.php | 2 ++
.../src/FunctionalJavascript/CKEditor5ReadOnlyModeTest.php | 2 +-
.../tests/src/FunctionalJavascript/CKEditor5Test.php | 2 ++
.../tests/src/FunctionalJavascript/CKEditor5TestBase.php | 2 ++
.../tests/src/FunctionalJavascript/CKEditor5ToolbarTest.php | 2 +-
.../FunctionalJavascript/CKEditorStylesheetsWarningTest.php | 2 ++
.../ckeditor5/tests/src/FunctionalJavascript/EmphasisTest.php | 2 ++
.../ckeditor5/tests/src/FunctionalJavascript/ImageTest.php | 2 ++
.../tests/src/FunctionalJavascript/ImageTestBase.php | 2 ++
.../ckeditor5/tests/src/FunctionalJavascript/ImageUrlTest.php | 2 ++
.../tests/src/FunctionalJavascript/JSTranslationTest.php | 2 +-
.../ckeditor5/tests/src/FunctionalJavascript/LanguageTest.php | 2 +-
.../tests/src/FunctionalJavascript/MediaLibraryTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaLinkabilityTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaPreviewTest.php | 2 ++
.../ckeditor5/tests/src/FunctionalJavascript/MediaTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaTestBase.php | 2 ++
.../FunctionalJavascript/SourceEditingEmptyElementTest.php | 2 ++
.../tests/src/FunctionalJavascript/SourceEditingTest.php | 2 ++
.../tests/src/FunctionalJavascript/SourceEditingTestBase.php | 2 ++
.../ckeditor5/tests/src/FunctionalJavascript/StyleTest.php | 2 ++
.../ckeditor5/tests/src/FunctionalJavascript/TableTest.php | 2 ++
.../tests/src/FunctionalJavascript/ConfigEntityTest.php | 2 ++
.../tests/src/FunctionalJavascript/ConfigExportTest.php | 2 ++
.../src/FunctionalJavascript/ConfigTranslationUiTest.php | 2 ++
.../ContentTranslationContextualLinksTest.php | 2 ++
.../src/FunctionalJavascript/ContextualLinkClickTrait.php | 2 ++
.../tests/src/FunctionalJavascript/ContextualLinksTest.php | 2 ++
.../src/FunctionalJavascript/DuplicateContextualLinksTest.php | 2 ++
.../tests/src/FunctionalJavascript/EditModeTest.php | 2 ++
.../editor/tests/src/FunctionalJavascript/EditorAdminTest.php | 2 ++
.../Boolean/BooleanFormatterSettingsTest.php | 2 ++
.../EntityReference/EntityReferenceAdminTest.php | 2 ++
.../src/FunctionalJavascript/MultipleValueWidgetTest.php | 2 ++
.../tests/src/FunctionalJavascript/Number/NumberFieldTest.php | 2 ++
.../tests/src/FunctionalJavascript/FieldLayoutTest.php | 2 ++
.../tests/src/FunctionalJavascript/DefaultValueWidgetTest.php | 2 ++
.../FunctionalJavascript/DisplayModeBundleSelectionTest.php | 2 ++
.../tests/src/FunctionalJavascript/EntityDisplayTest.php | 2 ++
.../tests/src/FunctionalJavascript/ManageDisplayTest.php | 2 ++
.../tests/src/FunctionalJavascript/ManageFieldsTest.php | 2 ++
.../src/FunctionalJavascript/AjaxFileManagedMultipleTest.php | 2 ++
.../tests/src/FunctionalJavascript/FileFieldValidateTest.php | 2 ++
.../FunctionalJavascript/FileFieldWidgetClaroThemeTest.php | 2 ++
.../tests/src/FunctionalJavascript/FileFieldWidgetTest.php | 2 ++
.../src/FunctionalJavascript/FileManagedFileElementTest.php | 2 ++
.../MaximumFileSizeExceededUploadTest.php | 2 ++
.../filter/tests/src/FunctionalJavascript/FilterHtmlTest.php | 2 ++
.../tests/src/FunctionalJavascript/ImageAdminStylesTest.php | 2 ++
.../tests/src/FunctionalJavascript/ImageFieldTestBase.php | 2 ++
.../tests/src/FunctionalJavascript/ImageFieldValidateTest.php | 2 ++
.../src/FunctionalJavascript/ImageFieldWidgetMultipleTest.php | 2 ++
.../FunctionalJavascript/FormErrorHandlerCKEditor5Test.php | 2 ++
.../tests/src/FunctionalJavascript/AjaxBlockTest.php | 2 ++
.../tests/src/FunctionalJavascript/BlockFilterTest.php | 2 ++
.../tests/src/FunctionalJavascript/BlockFormMessagesTest.php | 2 ++
.../src/FunctionalJavascript/ContentPreviewToggleTest.php | 2 ++
.../tests/src/FunctionalJavascript/ContextualLinksTest.php | 2 ++
.../tests/src/FunctionalJavascript/FieldBlockTest.php | 2 ++
.../src/FunctionalJavascript/InlineBlockPrivateFilesTest.php | 2 ++
.../tests/src/FunctionalJavascript/InlineBlockTest.php | 2 ++
.../tests/src/FunctionalJavascript/InlineBlockTestBase.php | 2 ++
.../src/FunctionalJavascript/ItemLayoutFieldBlockTest.php | 2 ++
.../LayoutBuilderDisableInteractionsTest.php | 2 ++
.../FunctionalJavascript/LayoutBuilderNestedFormUiTest.php | 2 ++
.../tests/src/FunctionalJavascript/LayoutBuilderOptInTest.php | 2 ++
.../tests/src/FunctionalJavascript/LayoutBuilderSortTrait.php | 2 ++
.../tests/src/FunctionalJavascript/LayoutBuilderTest.php | 2 ++
.../src/FunctionalJavascript/LayoutBuilderToolbarTest.php | 2 ++
.../tests/src/FunctionalJavascript/LayoutBuilderUiTest.php | 2 ++
.../tests/src/FunctionalJavascript/MoveBlockFormTest.php | 2 ++
.../src/FunctionalJavascript/TestMultiWidthLayoutsTest.php | 2 ++
.../media/tests/src/FunctionalJavascript/MediaDisplayTest.php | 2 ++
.../MediaEmbedFilterConfigurationUiAddTest.php | 2 ++
.../MediaEmbedFilterConfigurationUiEditTest.php | 2 ++
.../src/FunctionalJavascript/MediaEmbedFilterTestBase.php | 2 ++
.../src/FunctionalJavascript/MediaJavascriptTestBase.php | 2 ++
.../src/FunctionalJavascript/MediaReferenceFieldHelpTest.php | 2 ++
.../src/FunctionalJavascript/MediaSourceAudioVideoTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaSourceFileTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaSourceImageTest.php | 2 ++
.../src/FunctionalJavascript/MediaSourceOEmbedVideoTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaSourceTestBase.php | 2 ++
.../src/FunctionalJavascript/MediaStandardProfileTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaTypeCreationTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaUiJavascriptTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaViewsWizardTest.php | 2 ++
.../tests/src/FunctionalJavascript/ContentModerationTest.php | 2 ++
.../tests/src/FunctionalJavascript/EmbeddedFormWidgetTest.php | 2 ++
.../src/FunctionalJavascript/EntityReferenceWidgetTest.php | 2 ++
.../tests/src/FunctionalJavascript/FieldUiIntegrationTest.php | 2 ++
.../tests/src/FunctionalJavascript/MediaLibraryTestBase.php | 2 ++
.../tests/src/FunctionalJavascript/MediaOverviewTest.php | 2 ++
.../tests/src/FunctionalJavascript/TranslationsTest.php | 2 ++
.../tests/src/FunctionalJavascript/ViewsUiIntegrationTest.php | 2 ++
.../tests/src/FunctionalJavascript/WidgetAccessTest.php | 2 ++
.../tests/src/FunctionalJavascript/WidgetAnonymousTest.php | 2 ++
.../tests/src/FunctionalJavascript/WidgetOEmbedTest.php | 2 ++
.../tests/src/FunctionalJavascript/WidgetOverflowTest.php | 2 ++
.../tests/src/FunctionalJavascript/WidgetUploadTest.php | 2 ++
.../tests/src/FunctionalJavascript/WidgetViewsTest.php | 2 ++
.../tests/src/FunctionalJavascript/WidgetWithoutTypesTest.php | 2 ++
.../tests/src/FunctionalJavascript/MenuUiJavascriptTest.php | 2 ++
.../tests/src/FunctionalJavascript/SettingsTest.php | 2 ++
.../tests/src/FunctionalJavascript/CollapsedSummariesTest.php | 2 ++
.../tests/src/FunctionalJavascript/ContextualLinksTest.php | 2 ++
.../tests/src/FunctionalJavascript/NodeDeleteConfirmTest.php | 2 ++
.../tests/src/FunctionalJavascript/NodePreviewLinkTest.php | 2 ++
.../FunctionalJavascript/SettingSummariesContentTypeTest.php | 2 ++
.../tests/src/FunctionalJavascript/OptionsFieldUITest.php | 2 ++
.../src/FunctionalJavascript/ResponsiveImageFieldUiTest.php | 2 ++
.../tests/src/FunctionalJavascript/ComponentRenderTest.php | 2 ++
.../tests/src/FunctionalJavascript/ConfigAccessTest.php | 2 ++
.../src/FunctionalJavascript/OverriddenConfigurationTest.php | 2 ++
.../src/FunctionalJavascript/SettingsTrayBlockFormTest.php | 2 ++
.../tests/src/FunctionalJavascript/SettingsTrayTestBase.php | 2 ++
.../tests/src/FunctionalJavascript/StatisticsLoggingTest.php | 2 ++
.../tests/src/FunctionalJavascript/Batch/ProcessingTest.php | 2 ++
.../tests/src/FunctionalJavascript/CopyFieldValueTest.php | 2 ++
.../FunctionalJavascript/Form/DevelopmentSettingsFormTest.php | 2 ++
.../src/FunctionalJavascript/Form/ElementsTableSelectTest.php | 2 ++
.../tests/src/FunctionalJavascript/Form/RebuildTest.php | 2 ++
.../src/FunctionalJavascript/Form/TriggeringElementTest.php | 2 ++
.../system/tests/src/FunctionalJavascript/FrameworkTest.php | 2 ++
.../tests/src/FunctionalJavascript/ModalRendererTest.php | 2 ++
.../tests/src/FunctionalJavascript/ModuleFilterTest.php | 2 ++
.../src/FunctionalJavascript/ModuleUninstallFilterTest.php | 2 ++
.../system/tests/src/FunctionalJavascript/OffCanvasTest.php | 2 ++
.../tests/src/FunctionalJavascript/OffCanvasTestBase.php | 2 ++
.../tests/src/FunctionalJavascript/System/DateFormatTest.php | 2 ++
.../tests/src/FunctionalJavascript/ThemeSettingsFormTest.php | 2 ++
.../src/FunctionalJavascript/TextareaWithSummaryTest.php | 2 ++
.../tests/src/FunctionalJavascript/ToolbarActiveTrailTest.php | 2 ++
.../tests/src/FunctionalJavascript/ToolbarIntegrationTest.php | 2 ++
.../tests/src/FunctionalJavascript/ToolbarStoredStateTest.php | 2 ++
.../tests/src/FunctionalJavascript/TourJavascriptTest.php | 2 ++
.../src/FunctionalJavascript/PasswordConfirmWidgetTest.php | 2 ++
.../tests/src/FunctionalJavascript/PermissionFilterTest.php | 2 ++
.../FunctionalJavascript/RegistrationWithUserFieldsTest.php | 2 ++
.../tests/src/FunctionalJavascript/UserPasswordResetTest.php | 2 ++
.../tests/src/FunctionalJavascript/UserPermissionsTest.php | 2 ++
.../src/FunctionalJavascript/BlockExposedFilterAJAXTest.php | 2 ++
.../tests/src/FunctionalJavascript/ClickSortingAJAXTest.php | 2 ++
.../tests/src/FunctionalJavascript/ExposedFilterAJAXTest.php | 2 ++
.../views/tests/src/FunctionalJavascript/GlossaryViewTest.php | 2 ++
.../tests/src/FunctionalJavascript/PaginationAJAXTest.php | 2 ++
.../src/FunctionalJavascript/Plugin/BulkOperationsTest.php | 2 ++
.../Plugin/views/Handler/ContextualFilterTest.php | 2 ++
.../FunctionalJavascript/Plugin/views/Handler/FieldTest.php | 2 ++
.../FunctionalJavascript/Plugin/views/Handler/FilterTest.php | 2 ++
.../Plugin/views/Handler/GroupedExposedFilterTest.php | 2 ++
.../views/tests/src/FunctionalJavascript/RedirectAjaxTest.php | 2 ++
.../views_ui/tests/src/FunctionalJavascript/AdminAjaxTest.php | 2 ++
.../views_ui/tests/src/FunctionalJavascript/DisplayTest.php | 2 ++
.../tests/src/FunctionalJavascript/FieldDialogsTest.php | 2 ++
.../tests/src/FunctionalJavascript/FilterCriteriaTest.php | 2 ++
.../tests/src/FunctionalJavascript/FilterOptionsTest.php | 2 ++
.../views_ui/tests/src/FunctionalJavascript/PreviewTest.php | 2 ++
.../tests/src/FunctionalJavascript/ViewsListingTest.php | 2 ++
.../tests/src/FunctionalJavascript/ViewsWizardTest.php | 2 ++
.../FunctionalJavascript/WorkspaceToolbarIntegrationTest.php | 2 ++
core/phpcs.xml.dist | 4 +++-
.../OpenTelemetryFrontPagePerformanceTest.php | 2 ++
.../OpenTelemetryNodePagePerformanceTest.php | 2 ++
.../tests/src/FunctionalJavascript/PerformanceTest.php | 2 ++
.../tests/src/FunctionalJavascript/StandardJavascriptTest.php | 2 ++
.../src/FunctionalJavascript/StandardPerformanceTest.php | 2 ++
.../FunctionalJavascriptTests/Ajax/AjaxCallbacksTest.php | 2 ++
.../FunctionalJavascriptTests/Ajax/AjaxFormCacheTest.php | 2 ++
.../Ajax/AjaxFormImageButtonTest.php | 2 ++
.../FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/Ajax/AjaxInGroupTest.php | 2 ++
.../Ajax/AjaxMaintenanceModeTest.php | 2 ++
core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/Ajax/CommandsTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/Ajax/DialogTest.php | 2 ++
.../FunctionalJavascriptTests/Ajax/ElementValidationTest.php | 2 ++
.../FunctionalJavascriptTests/Ajax/FocusFirstCommandTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/Ajax/FormValuesTest.php | 2 ++
.../FunctionalJavascriptTests/Ajax/MessageCommandTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/Ajax/MultiFormTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/Ajax/ThrobberTest.php | 2 ++
core/tests/Drupal/FunctionalJavascriptTests/AjaxWaitTest.php | 2 ++
.../FunctionalJavascriptTests/BrowserWithJavascriptTest.php | 2 ++
.../FunctionalJavascriptTests/Core/CsrfTokenRaceTest.php | 2 ++
.../Core/Field/TimestampFormatterWithTimeDiffTest.php | 2 ++
.../Core/Field/TimestampFormatterWithTimeDiffViewsTest.php | 2 ++
.../Core/Form/FormGroupingElementsTest.php | 2 ++
.../Core/Form/JavascriptStatesTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/Core/JsMessageTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/Core/MachineNameTest.php | 2 ++
.../FunctionalJavascriptTests/Core/Session/SessionTest.php | 2 ++
.../FunctionalJavascriptTests/Dialog/DialogPositionTest.php | 2 ++
.../FunctionalJavascriptTests/DrupalSelenium2Driver.php | 2 ++
.../EntityReference/EntityReferenceAutocompleteWidgetTest.php | 2 ++
core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php | 2 ++
.../FunctionalJavascriptTests/JavascriptDeprecationTest.php | 2 ++
.../JavascriptErrorsSuppressionTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/JavascriptErrorsTest.php | 2 ++
.../JavascriptGetDrupalSettingsTest.php | 2 ++
.../MachineName/MachineNameTransliterationTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/PerformanceTestBase.php | 2 +-
.../Drupal/FunctionalJavascriptTests/SortableTestTrait.php | 2 ++
.../FunctionalJavascriptTests/TableDrag/TableDragTest.php | 2 ++
.../Tests/DrupalSelenium2DriverTest.php | 2 ++
.../FunctionalJavascriptTests/Tests/JSInteractionTest.php | 2 ++
.../FunctionalJavascriptTests/Tests/JSWebAssertTest.php | 2 ++
.../FunctionalJavascriptTests/Theme/ClaroBlockFilterTest.php | 2 ++
.../Theme/ClaroEntityDisplayTest.php | 2 ++
.../Theme/ClaroMenuUiJavascriptTest.php | 2 ++
.../FunctionalJavascriptTests/Theme/ClaroModalDisplayTest.php | 2 ++
.../Theme/ClaroPasswordConfirmWidgetTest.php | 2 ++
.../FunctionalJavascriptTests/Theme/ClaroTableDragTest.php | 2 ++
.../Theme/ClaroViewsBulkOperationsTest.php | 2 ++
.../FunctionalJavascriptTests/Theme/ClaroViewsUiTest.php | 2 ++
.../FunctionalJavascriptTests/Theme/OliveroMessagesTest.php | 2 ++
.../Drupal/FunctionalJavascriptTests/WebDriverCurlService.php | 2 ++
.../Drupal/FunctionalJavascriptTests/WebDriverTestBase.php | 2 ++
.../Drupal/FunctionalJavascriptTests/WebDriverWebAssert.php | 2 ++
233 files changed, 462 insertions(+), 6 deletions(-)
diff --git a/core/modules/action/tests/src/FunctionalJavascript/ActionFormAjaxTest.php b/core/modules/action/tests/src/FunctionalJavascript/ActionFormAjaxTest.php
index d691a1975cc1..f09b86400710 100644
--- a/core/modules/action/tests/src/FunctionalJavascript/ActionFormAjaxTest.php
+++ b/core/modules/action/tests/src/FunctionalJavascript/ActionFormAjaxTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\action\FunctionalJavascript;
use Drupal\Core\Url;
diff --git a/core/modules/announcements_feed/tests/src/FunctionalJavascript/AccessAnnouncementTest.php b/core/modules/announcements_feed/tests/src/FunctionalJavascript/AccessAnnouncementTest.php
index ec0a8a13131c..189f42f845ae 100644
--- a/core/modules/announcements_feed/tests/src/FunctionalJavascript/AccessAnnouncementTest.php
+++ b/core/modules/announcements_feed/tests/src/FunctionalJavascript/AccessAnnouncementTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\announcements_feed\FunctionalJavascript;
use Drupal\Tests\system\FunctionalJavascript\OffCanvasTestBase;
diff --git a/core/modules/announcements_feed/tests/src/FunctionalJavascript/AlertsJsonFeedTest.php b/core/modules/announcements_feed/tests/src/FunctionalJavascript/AlertsJsonFeedTest.php
index 0b442903bf3a..96f3b81b3e1f 100644
--- a/core/modules/announcements_feed/tests/src/FunctionalJavascript/AlertsJsonFeedTest.php
+++ b/core/modules/announcements_feed/tests/src/FunctionalJavascript/AlertsJsonFeedTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\announcements_feed\FunctionalJavascript;
use Drupal\Tests\system\FunctionalJavascript\OffCanvasTestBase;
diff --git a/core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipePreviewTest.php b/core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipePreviewTest.php
index 1ff07ecbd1f7..b9b8a33ee90b 100644
--- a/core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipePreviewTest.php
+++ b/core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipePreviewTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\big_pipe\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipeRegressionTest.php b/core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipeRegressionTest.php
index a06f39e9c720..4367947dfd02 100644
--- a/core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipeRegressionTest.php
+++ b/core/modules/big_pipe/tests/src/FunctionalJavascript/BigPipeRegressionTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\big_pipe\FunctionalJavascript;
use Drupal\big_pipe\Render\BigPipe;
diff --git a/core/modules/block/tests/src/FunctionalJavascript/BlockAddTest.php b/core/modules/block/tests/src/FunctionalJavascript/BlockAddTest.php
index 2cc913283e47..66570a8ff9b3 100644
--- a/core/modules/block/tests/src/FunctionalJavascript/BlockAddTest.php
+++ b/core/modules/block/tests/src/FunctionalJavascript/BlockAddTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\block\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/block/tests/src/FunctionalJavascript/BlockContextualLinksTest.php b/core/modules/block/tests/src/FunctionalJavascript/BlockContextualLinksTest.php
index 62f0dc6e83df..8e8e7651d945 100644
--- a/core/modules/block/tests/src/FunctionalJavascript/BlockContextualLinksTest.php
+++ b/core/modules/block/tests/src/FunctionalJavascript/BlockContextualLinksTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\block\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/block/tests/src/FunctionalJavascript/BlockDragTest.php b/core/modules/block/tests/src/FunctionalJavascript/BlockDragTest.php
index 48fbc7080028..85a273f11866 100644
--- a/core/modules/block/tests/src/FunctionalJavascript/BlockDragTest.php
+++ b/core/modules/block/tests/src/FunctionalJavascript/BlockDragTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\block\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/block/tests/src/FunctionalJavascript/BlockFilterTest.php b/core/modules/block/tests/src/FunctionalJavascript/BlockFilterTest.php
index 3d7c3de2adc6..fd7baaffa053 100644
--- a/core/modules/block/tests/src/FunctionalJavascript/BlockFilterTest.php
+++ b/core/modules/block/tests/src/FunctionalJavascript/BlockFilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\block\FunctionalJavascript;
use Behat\Mink\Element\NodeElement;
diff --git a/core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php b/core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php
index 33f0c253f45e..507877f73516 100644
--- a/core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php
+++ b/core/modules/book/tests/src/FunctionalJavascript/BookJavascriptTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\book\FunctionalJavascript;
use Behat\Mink\Exception\ExpectationException;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/AdminUiTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/AdminUiTest.php
index 0978894582fe..c0b7a793194a 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/AdminUiTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/AdminUiTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
// cspell:ignore sourceediting
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5AllowedTagsTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5AllowedTagsTest.php
index 1a30dbacc246..5cbb823140a2 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5AllowedTagsTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5AllowedTagsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityViewMode;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5DialogTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5DialogTest.php
index 9f2f97536ae6..829a67d9106b 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5DialogTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5DialogTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\ckeditor5\Plugin\Editor\CKEditor5;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5FragmentLinkTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5FragmentLinkTest.php
index 37f17ced6f12..c80ff3335147 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5FragmentLinkTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5FragmentLinkTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityFormDisplay;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5OffCanvasTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5OffCanvasTest.php
index 6c4effb5e989..eea39462ba19 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5OffCanvasTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5OffCanvasTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
/**
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5ReadOnlyModeTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5ReadOnlyModeTest.php
index ea1d4ed68c8d..4a287960b7ec 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5ReadOnlyModeTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5ReadOnlyModeTest.php
@@ -1,6 +1,6 @@
<?php
-declare(strict_types = 1);
+declare(strict_types=1);
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5Test.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5Test.php
index 77a47b51e2a4..edc3b94576dc 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5Test.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5Test.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\ckeditor5\Plugin\Editor\CKEditor5;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5TestBase.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5TestBase.php
index 37753f8fa700..7879bf002b00 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5TestBase.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5TestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Behat\Mink\Element\TraversableElement;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5ToolbarTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5ToolbarTest.php
index 09a38906b4a9..fd3cfa65602d 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5ToolbarTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditor5ToolbarTest.php
@@ -1,6 +1,6 @@
<?php
-declare(strict_types = 1);
+declare(strict_types=1);
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditorStylesheetsWarningTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditorStylesheetsWarningTest.php
index a83ff5f26e59..ee42404ae02d 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditorStylesheetsWarningTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/CKEditorStylesheetsWarningTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
// cspell:ignore subtheming
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/EmphasisTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/EmphasisTest.php
index 19636d7810eb..67916ce200eb 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/EmphasisTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/EmphasisTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\ckeditor5\Plugin\Editor\CKEditor5;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageTest.php
index c60fe71f24fd..fc3fca9873b5 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\editor\Entity\Editor;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageTestBase.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageTestBase.php
index 8726dc7f0386..d0ed12e3c90c 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageTestBase.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\Component\Utility\Html;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageUrlTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageUrlTest.php
index 7e363064d24e..a178615908ab 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageUrlTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/ImageUrlTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\ckeditor5\Plugin\Editor\CKEditor5;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/JSTranslationTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/JSTranslationTest.php
index 6a02789dd704..88ded5539830 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/JSTranslationTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/JSTranslationTest.php
@@ -1,6 +1,6 @@
<?php
-declare(strict_types = 1);
+declare(strict_types=1);
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/LanguageTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/LanguageTest.php
index 3bc40cd178aa..4a89ab103802 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/LanguageTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/LanguageTest.php
@@ -1,6 +1,6 @@
<?php
-declare(strict_types = 1);
+declare(strict_types=1);
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaLibraryTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaLibraryTest.php
index a48b8bbab1b4..c3ec75e6d0cc 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaLibraryTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaLibraryTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\ckeditor5\Plugin\Editor\CKEditor5;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaLinkabilityTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaLinkabilityTest.php
index ccb58d152cdd..07d3ed9aecce 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaLinkabilityTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaLinkabilityTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\editor\Entity\Editor;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaPreviewTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaPreviewTest.php
index 642a12427092..ac88edb64c33 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaPreviewTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaPreviewTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\Core\Database\Database;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php
index 566e53d9e5df..255c264c6372 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityViewDisplay;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTestBase.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTestBase.php
index caeff363ee19..3384ec7fa483 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTestBase.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/MediaTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityViewDisplay;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingEmptyElementTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingEmptyElementTest.php
index eddd914fb75c..6784bca0a854 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingEmptyElementTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingEmptyElementTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\ckeditor5\HTMLRestrictions;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTest.php
index 1289b052e9f7..a638d5676596 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\ckeditor5\HTMLRestrictions;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTestBase.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTestBase.php
index 00176fba5d8f..d41ffcaa3e34 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTestBase.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/SourceEditingTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\editor\Entity\Editor;
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/StyleTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/StyleTest.php
index 5c2aa8ad406c..1e09a5b91bc8 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/StyleTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/StyleTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
// cspell:ignore sourceediting
diff --git a/core/modules/ckeditor5/tests/src/FunctionalJavascript/TableTest.php b/core/modules/ckeditor5/tests/src/FunctionalJavascript/TableTest.php
index 70a11e2cca60..d69732e2a429 100644
--- a/core/modules/ckeditor5/tests/src/FunctionalJavascript/TableTest.php
+++ b/core/modules/ckeditor5/tests/src/FunctionalJavascript/TableTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\ckeditor5\FunctionalJavascript;
use Drupal\ckeditor5\Plugin\Editor\CKEditor5;
diff --git a/core/modules/config/tests/src/FunctionalJavascript/ConfigEntityTest.php b/core/modules/config/tests/src/FunctionalJavascript/ConfigEntityTest.php
index 2f38fb8dc937..9de2bbe8b674 100644
--- a/core/modules/config/tests/src/FunctionalJavascript/ConfigEntityTest.php
+++ b/core/modules/config/tests/src/FunctionalJavascript/ConfigEntityTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\config\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/config/tests/src/FunctionalJavascript/ConfigExportTest.php b/core/modules/config/tests/src/FunctionalJavascript/ConfigExportTest.php
index 6ce94185a1a7..5c87adc37137 100644
--- a/core/modules/config/tests/src/FunctionalJavascript/ConfigExportTest.php
+++ b/core/modules/config/tests/src/FunctionalJavascript/ConfigExportTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\config\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/config_translation/tests/src/FunctionalJavascript/ConfigTranslationUiTest.php b/core/modules/config_translation/tests/src/FunctionalJavascript/ConfigTranslationUiTest.php
index 2f9c43a69f92..f80528a0770f 100644
--- a/core/modules/config_translation/tests/src/FunctionalJavascript/ConfigTranslationUiTest.php
+++ b/core/modules/config_translation/tests/src/FunctionalJavascript/ConfigTranslationUiTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\config_translation\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/content_translation/tests/src/FunctionalJavascript/ContentTranslationContextualLinksTest.php b/core/modules/content_translation/tests/src/FunctionalJavascript/ContentTranslationContextualLinksTest.php
index 6ca22026ffd7..4d71d0e0db83 100644
--- a/core/modules/content_translation/tests/src/FunctionalJavascript/ContentTranslationContextualLinksTest.php
+++ b/core/modules/content_translation/tests/src/FunctionalJavascript/ContentTranslationContextualLinksTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\content_translation\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinkClickTrait.php b/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinkClickTrait.php
index 2e90808996de..b6b62dbddd2c 100644
--- a/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinkClickTrait.php
+++ b/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinkClickTrait.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\contextual\FunctionalJavascript;
/**
diff --git a/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php b/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php
index 6c47fdf231d6..aa7ba560c4fe 100644
--- a/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php
+++ b/core/modules/contextual/tests/src/FunctionalJavascript/ContextualLinksTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\contextual\FunctionalJavascript;
use Drupal\Core\Url;
diff --git a/core/modules/contextual/tests/src/FunctionalJavascript/DuplicateContextualLinksTest.php b/core/modules/contextual/tests/src/FunctionalJavascript/DuplicateContextualLinksTest.php
index 2ae174732c9a..b67bcd5c5329 100644
--- a/core/modules/contextual/tests/src/FunctionalJavascript/DuplicateContextualLinksTest.php
+++ b/core/modules/contextual/tests/src/FunctionalJavascript/DuplicateContextualLinksTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\contextual\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/contextual/tests/src/FunctionalJavascript/EditModeTest.php b/core/modules/contextual/tests/src/FunctionalJavascript/EditModeTest.php
index 132a84a33e46..50427cd7110b 100644
--- a/core/modules/contextual/tests/src/FunctionalJavascript/EditModeTest.php
+++ b/core/modules/contextual/tests/src/FunctionalJavascript/EditModeTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\contextual\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/editor/tests/src/FunctionalJavascript/EditorAdminTest.php b/core/modules/editor/tests/src/FunctionalJavascript/EditorAdminTest.php
index 065cb7dc14c1..d83d594c3e11 100644
--- a/core/modules/editor/tests/src/FunctionalJavascript/EditorAdminTest.php
+++ b/core/modules/editor/tests/src/FunctionalJavascript/EditorAdminTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\editor\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/field/tests/src/FunctionalJavascript/Boolean/BooleanFormatterSettingsTest.php b/core/modules/field/tests/src/FunctionalJavascript/Boolean/BooleanFormatterSettingsTest.php
index c7ebc597a6e1..47c31b320c95 100644
--- a/core/modules/field/tests/src/FunctionalJavascript/Boolean/BooleanFormatterSettingsTest.php
+++ b/core/modules/field/tests/src/FunctionalJavascript/Boolean/BooleanFormatterSettingsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field\FunctionalJavascript\Boolean;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/field/tests/src/FunctionalJavascript/EntityReference/EntityReferenceAdminTest.php b/core/modules/field/tests/src/FunctionalJavascript/EntityReference/EntityReferenceAdminTest.php
index e5cd843ffb6a..e7ed6abe1f9a 100644
--- a/core/modules/field/tests/src/FunctionalJavascript/EntityReference/EntityReferenceAdminTest.php
+++ b/core/modules/field/tests/src/FunctionalJavascript/EntityReference/EntityReferenceAdminTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field\FunctionalJavascript\EntityReference;
use Behat\Mink\Element\NodeElement;
diff --git a/core/modules/field/tests/src/FunctionalJavascript/MultipleValueWidgetTest.php b/core/modules/field/tests/src/FunctionalJavascript/MultipleValueWidgetTest.php
index 730d0c8b44fa..1b037e2ee17e 100644
--- a/core/modules/field/tests/src/FunctionalJavascript/MultipleValueWidgetTest.php
+++ b/core/modules/field/tests/src/FunctionalJavascript/MultipleValueWidgetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityFormDisplay;
diff --git a/core/modules/field/tests/src/FunctionalJavascript/Number/NumberFieldTest.php b/core/modules/field/tests/src/FunctionalJavascript/Number/NumberFieldTest.php
index e06acc1b1408..e960706ff018 100644
--- a/core/modules/field/tests/src/FunctionalJavascript/Number/NumberFieldTest.php
+++ b/core/modules/field/tests/src/FunctionalJavascript/Number/NumberFieldTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field\FunctionalJavascript\Number;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/field_layout/tests/src/FunctionalJavascript/FieldLayoutTest.php b/core/modules/field_layout/tests/src/FunctionalJavascript/FieldLayoutTest.php
index 00f96ad9a41b..b00bced862a3 100644
--- a/core/modules/field_layout/tests/src/FunctionalJavascript/FieldLayoutTest.php
+++ b/core/modules/field_layout/tests/src/FunctionalJavascript/FieldLayoutTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field_layout\FunctionalJavascript;
use Drupal\entity_test\Entity\EntityTest;
diff --git a/core/modules/field_ui/tests/src/FunctionalJavascript/DefaultValueWidgetTest.php b/core/modules/field_ui/tests/src/FunctionalJavascript/DefaultValueWidgetTest.php
index bee359f6266e..b6a12332baef 100644
--- a/core/modules/field_ui/tests/src/FunctionalJavascript/DefaultValueWidgetTest.php
+++ b/core/modules/field_ui/tests/src/FunctionalJavascript/DefaultValueWidgetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/field_ui/tests/src/FunctionalJavascript/DisplayModeBundleSelectionTest.php b/core/modules/field_ui/tests/src/FunctionalJavascript/DisplayModeBundleSelectionTest.php
index 7d592b090e32..a915f5da15c3 100644
--- a/core/modules/field_ui/tests/src/FunctionalJavascript/DisplayModeBundleSelectionTest.php
+++ b/core/modules/field_ui/tests/src/FunctionalJavascript/DisplayModeBundleSelectionTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field_ui\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityFormMode;
diff --git a/core/modules/field_ui/tests/src/FunctionalJavascript/EntityDisplayTest.php b/core/modules/field_ui/tests/src/FunctionalJavascript/EntityDisplayTest.php
index 1b0c644b4938..ff0f5db89d86 100644
--- a/core/modules/field_ui/tests/src/FunctionalJavascript/EntityDisplayTest.php
+++ b/core/modules/field_ui/tests/src/FunctionalJavascript/EntityDisplayTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field_ui\FunctionalJavascript;
use Drupal\entity_test\Entity\EntityTest;
diff --git a/core/modules/field_ui/tests/src/FunctionalJavascript/ManageDisplayTest.php b/core/modules/field_ui/tests/src/FunctionalJavascript/ManageDisplayTest.php
index 64135ab9385d..8efeab9183d0 100644
--- a/core/modules/field_ui/tests/src/FunctionalJavascript/ManageDisplayTest.php
+++ b/core/modules/field_ui/tests/src/FunctionalJavascript/ManageDisplayTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field_ui\FunctionalJavascript;
use Behat\Mink\Element\NodeElement;
diff --git a/core/modules/field_ui/tests/src/FunctionalJavascript/ManageFieldsTest.php b/core/modules/field_ui/tests/src/FunctionalJavascript/ManageFieldsTest.php
index eb89bc480d1e..a33d124dee84 100644
--- a/core/modules/field_ui/tests/src/FunctionalJavascript/ManageFieldsTest.php
+++ b/core/modules/field_ui/tests/src/FunctionalJavascript/ManageFieldsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\field_ui\FunctionalJavascript;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/file/tests/src/FunctionalJavascript/AjaxFileManagedMultipleTest.php b/core/modules/file/tests/src/FunctionalJavascript/AjaxFileManagedMultipleTest.php
index 632bcdb47ccc..311706489940 100644
--- a/core/modules/file/tests/src/FunctionalJavascript/AjaxFileManagedMultipleTest.php
+++ b/core/modules/file/tests/src/FunctionalJavascript/AjaxFileManagedMultipleTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\file\FunctionalJavascript;
use Drupal\Core\Url;
diff --git a/core/modules/file/tests/src/FunctionalJavascript/FileFieldValidateTest.php b/core/modules/file/tests/src/FunctionalJavascript/FileFieldValidateTest.php
index 450280276166..315d7983bda6 100644
--- a/core/modules/file/tests/src/FunctionalJavascript/FileFieldValidateTest.php
+++ b/core/modules/file/tests/src/FunctionalJavascript/FileFieldValidateTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\file\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetClaroThemeTest.php b/core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetClaroThemeTest.php
index 69bbaf3bf1ed..f8c6e315d22b 100644
--- a/core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetClaroThemeTest.php
+++ b/core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetClaroThemeTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\file\FunctionalJavascript;
use Drupal\Core\Url;
diff --git a/core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetTest.php b/core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetTest.php
index 9f3a8d87ad52..a73482afe36f 100644
--- a/core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetTest.php
+++ b/core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\file\FunctionalJavascript;
use Drupal\file\Entity\File;
diff --git a/core/modules/file/tests/src/FunctionalJavascript/FileManagedFileElementTest.php b/core/modules/file/tests/src/FunctionalJavascript/FileManagedFileElementTest.php
index 20dfa742fdcd..67efd3eab910 100644
--- a/core/modules/file/tests/src/FunctionalJavascript/FileManagedFileElementTest.php
+++ b/core/modules/file/tests/src/FunctionalJavascript/FileManagedFileElementTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\file\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/file/tests/src/FunctionalJavascript/MaximumFileSizeExceededUploadTest.php b/core/modules/file/tests/src/FunctionalJavascript/MaximumFileSizeExceededUploadTest.php
index 323fdd18e428..7f6d0685f82e 100644
--- a/core/modules/file/tests/src/FunctionalJavascript/MaximumFileSizeExceededUploadTest.php
+++ b/core/modules/file/tests/src/FunctionalJavascript/MaximumFileSizeExceededUploadTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\file\FunctionalJavascript;
use Drupal\Component\Utility\Bytes;
diff --git a/core/modules/filter/tests/src/FunctionalJavascript/FilterHtmlTest.php b/core/modules/filter/tests/src/FunctionalJavascript/FilterHtmlTest.php
index 7a76907fe883..15fa2c72cf2b 100644
--- a/core/modules/filter/tests/src/FunctionalJavascript/FilterHtmlTest.php
+++ b/core/modules/filter/tests/src/FunctionalJavascript/FilterHtmlTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\filter\FunctionalJavascript;
use Drupal\filter\Entity\FilterFormat;
diff --git a/core/modules/image/tests/src/FunctionalJavascript/ImageAdminStylesTest.php b/core/modules/image/tests/src/FunctionalJavascript/ImageAdminStylesTest.php
index ec53cc58e734..9bf24b6a33e8 100644
--- a/core/modules/image/tests/src/FunctionalJavascript/ImageAdminStylesTest.php
+++ b/core/modules/image/tests/src/FunctionalJavascript/ImageAdminStylesTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\image\FunctionalJavascript;
use Drupal\image\Entity\ImageStyle;
diff --git a/core/modules/image/tests/src/FunctionalJavascript/ImageFieldTestBase.php b/core/modules/image/tests/src/FunctionalJavascript/ImageFieldTestBase.php
index 3e8bf2450183..e83121b37af8 100644
--- a/core/modules/image/tests/src/FunctionalJavascript/ImageFieldTestBase.php
+++ b/core/modules/image/tests/src/FunctionalJavascript/ImageFieldTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\image\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/image/tests/src/FunctionalJavascript/ImageFieldValidateTest.php b/core/modules/image/tests/src/FunctionalJavascript/ImageFieldValidateTest.php
index f26f32643ca0..5b7d8ac99d12 100644
--- a/core/modules/image/tests/src/FunctionalJavascript/ImageFieldValidateTest.php
+++ b/core/modules/image/tests/src/FunctionalJavascript/ImageFieldValidateTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\image\FunctionalJavascript;
use Drupal\field\Entity\FieldStorageConfig;
diff --git a/core/modules/image/tests/src/FunctionalJavascript/ImageFieldWidgetMultipleTest.php b/core/modules/image/tests/src/FunctionalJavascript/ImageFieldWidgetMultipleTest.php
index 60a647b75e36..f4cd560158cb 100644
--- a/core/modules/image/tests/src/FunctionalJavascript/ImageFieldWidgetMultipleTest.php
+++ b/core/modules/image/tests/src/FunctionalJavascript/ImageFieldWidgetMultipleTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\image\FunctionalJavascript;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
diff --git a/core/modules/inline_form_errors/tests/src/FunctionalJavascript/FormErrorHandlerCKEditor5Test.php b/core/modules/inline_form_errors/tests/src/FunctionalJavascript/FormErrorHandlerCKEditor5Test.php
index 98b08d868ef5..b68a9ecf653e 100644
--- a/core/modules/inline_form_errors/tests/src/FunctionalJavascript/FormErrorHandlerCKEditor5Test.php
+++ b/core/modules/inline_form_errors/tests/src/FunctionalJavascript/FormErrorHandlerCKEditor5Test.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\inline_form_errors\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityFormDisplay;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/AjaxBlockTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/AjaxBlockTest.php
index beb156969b8a..199ee239dfec 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/AjaxBlockTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/AjaxBlockTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFilterTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFilterTest.php
index 6401ef1fc925..fb7f50ae38e8 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFilterTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Behat\Mink\Element\NodeElement;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFormMessagesTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFormMessagesTest.php
index 2f5d384f9b1c..1fd7fe80e791 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFormMessagesTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/BlockFormMessagesTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/ContentPreviewToggleTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/ContentPreviewToggleTest.php
index f836e478da2c..6e9cc44793fb 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/ContentPreviewToggleTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/ContentPreviewToggleTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/ContextualLinksTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/ContextualLinksTest.php
index 4c4996cc9783..335af57ede2d 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/ContextualLinksTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/ContextualLinksTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/FieldBlockTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/FieldBlockTest.php
index c3337ff51c63..9928c0554a7c 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/FieldBlockTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/FieldBlockTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockPrivateFilesTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockPrivateFilesTest.php
index c565d642a7f9..f0d64fbf3b23 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockPrivateFilesTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockPrivateFilesTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\file\Entity\File;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php
index e635a84863a5..75b465d1a263 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\layout_builder\Entity\LayoutBuilderEntityViewDisplay;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTestBase.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTestBase.php
index 2123c99c2cd3..9aff647e639f 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTestBase.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\block_content\Entity\BlockContentType;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/ItemLayoutFieldBlockTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/ItemLayoutFieldBlockTest.php
index 0a14e924b53f..31b719df935c 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/ItemLayoutFieldBlockTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/ItemLayoutFieldBlockTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderDisableInteractionsTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderDisableInteractionsTest.php
index ce71c9f96669..327930336b75 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderDisableInteractionsTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderDisableInteractionsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Behat\Mink\Element\NodeElement;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderNestedFormUiTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderNestedFormUiTest.php
index 82efebb9ea50..742548d5fcda 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderNestedFormUiTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderNestedFormUiTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderOptInTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderOptInTest.php
index a80ac8b7fa2b..0db8259c6d1e 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderOptInTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderOptInTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderSortTrait.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderSortTrait.php
index 23d4c83bf483..8fd00445a24f 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderSortTrait.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderSortTrait.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\SortableTestTrait;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderTest.php
index 74e0f5c8def3..2c1f033522c9 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\block_content\Entity\BlockContent;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderToolbarTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderToolbarTest.php
index 8021710a20d5..c55485cba79e 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderToolbarTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderToolbarTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderUiTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderUiTest.php
index 18ecf9a5978c..5929fcb365eb 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderUiTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderUiTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\block_content\Entity\BlockContentType;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php
index 4f739703066c..88288c90fa5e 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/MoveBlockFormTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/layout_builder/tests/src/FunctionalJavascript/TestMultiWidthLayoutsTest.php b/core/modules/layout_builder/tests/src/FunctionalJavascript/TestMultiWidthLayoutsTest.php
index 6ada06020ec4..d6570a9eae11 100644
--- a/core/modules/layout_builder/tests/src/FunctionalJavascript/TestMultiWidthLayoutsTest.php
+++ b/core/modules/layout_builder/tests/src/FunctionalJavascript/TestMultiWidthLayoutsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\layout_builder\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaDisplayTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaDisplayTest.php
index 5b9305b8c28d..60b50ac72e66 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaDisplayTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaDisplayTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\Core\Config\FileStorage;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterConfigurationUiAddTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterConfigurationUiAddTest.php
index 81f5e4e81eec..9f44ef781912 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterConfigurationUiAddTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterConfigurationUiAddTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
/**
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterConfigurationUiEditTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterConfigurationUiEditTest.php
index 5275c335b635..498bf7585527 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterConfigurationUiEditTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterConfigurationUiEditTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
/**
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterTestBase.php b/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterTestBase.php
index 9eb26912e58a..8bdf77fdce4a 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterTestBase.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaEmbedFilterTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\filter\Entity\FilterFormat;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaJavascriptTestBase.php b/core/modules/media/tests/src/FunctionalJavascript/MediaJavascriptTestBase.php
index 878c27f584cc..f08c2adf8b26 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaJavascriptTestBase.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaJavascriptTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaReferenceFieldHelpTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaReferenceFieldHelpTest.php
index 2a909ca1ed4e..2b351a002fe9 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaReferenceFieldHelpTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaReferenceFieldHelpTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
/**
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceAudioVideoTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceAudioVideoTest.php
index bc7a3b36fd56..05ff322ecb39 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceAudioVideoTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceAudioVideoTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityViewDisplay;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceFileTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceFileTest.php
index 97bf8cc185bd..c0662b5a2b2f 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceFileTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceFileTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\media\Entity\Media;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceImageTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceImageTest.php
index 590fd055c1c0..19a1a528cf63 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceImageTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceImageTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\Core\Entity\Entity\EntityViewDisplay;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceOEmbedVideoTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceOEmbedVideoTest.php
index ef27edb12815..5ce73e2336f2 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceOEmbedVideoTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceOEmbedVideoTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\Core\Session\AccountInterface;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceTestBase.php b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceTestBase.php
index aadfcc54b2ad..ba73eb8fe13f 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaSourceTestBase.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaSourceTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaStandardProfileTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaStandardProfileTest.php
index 17bf826a1c3c..13d196dff387 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaStandardProfileTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaStandardProfileTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\Core\Database\Database;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaTypeCreationTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaTypeCreationTest.php
index f7fbdbd320a4..3d5fbb1c8c28 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaTypeCreationTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaTypeCreationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\Component\Utility\Html;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaUiJavascriptTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaUiJavascriptTest.php
index 0ab1611f544c..6b98436161fd 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaUiJavascriptTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaUiJavascriptTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\field\FieldConfigInterface;
diff --git a/core/modules/media/tests/src/FunctionalJavascript/MediaViewsWizardTest.php b/core/modules/media/tests/src/FunctionalJavascript/MediaViewsWizardTest.php
index 48c39732027e..1bdad51ef1ba 100644
--- a/core/modules/media/tests/src/FunctionalJavascript/MediaViewsWizardTest.php
+++ b/core/modules/media/tests/src/FunctionalJavascript/MediaViewsWizardTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media\FunctionalJavascript;
use Drupal\views\Views;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/ContentModerationTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/ContentModerationTest.php
index 68a795324caf..b00d7e9790a9 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/ContentModerationTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/ContentModerationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/EmbeddedFormWidgetTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/EmbeddedFormWidgetTest.php
index cb284610fabe..75378f053673 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/EmbeddedFormWidgetTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/EmbeddedFormWidgetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/EntityReferenceWidgetTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/EntityReferenceWidgetTest.php
index 069365a8eaf2..7eae54e641d7 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/EntityReferenceWidgetTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/EntityReferenceWidgetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/FieldUiIntegrationTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/FieldUiIntegrationTest.php
index 4e26cd1739d3..c2584dfcbe4b 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/FieldUiIntegrationTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/FieldUiIntegrationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
/**
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/MediaLibraryTestBase.php b/core/modules/media_library/tests/src/FunctionalJavascript/MediaLibraryTestBase.php
index d1968f948f7c..a97832a15e5b 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/MediaLibraryTestBase.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/MediaLibraryTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/MediaOverviewTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/MediaOverviewTest.php
index c7bdb44d3a4d..a79a8ccfdbb0 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/MediaOverviewTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/MediaOverviewTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
/**
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/TranslationsTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/TranslationsTest.php
index 497f9a07c723..4285aebff4fb 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/TranslationsTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/TranslationsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/ViewsUiIntegrationTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/ViewsUiIntegrationTest.php
index f66795fb9fb3..f47635b7726b 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/ViewsUiIntegrationTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/ViewsUiIntegrationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
/**
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetAccessTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetAccessTest.php
index 0761bab5c9e2..7e27d0d09beb 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetAccessTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetAccessTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetAnonymousTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetAnonymousTest.php
index 73442e0e21d7..b54393b440f8 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetAnonymousTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetAnonymousTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\user\Entity\Role;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetOEmbedTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetOEmbedTest.php
index 5a7936319887..4081bc2e0805 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetOEmbedTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetOEmbedTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\media\Entity\Media;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetOverflowTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetOverflowTest.php
index 05dbadbbbc39..a9139748901d 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetOverflowTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetOverflowTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\Tests\TestFileCreationTrait;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetUploadTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetUploadTest.php
index 223c98b0a21b..75e378c9a53b 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetUploadTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetUploadTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\media\Entity\Media;
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetViewsTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetViewsTest.php
index bd14a1d104d3..0cbb6325452a 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetViewsTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetViewsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
/**
diff --git a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetWithoutTypesTest.php b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetWithoutTypesTest.php
index c2ef944d9c46..e4b03b1acb7c 100644
--- a/core/modules/media_library/tests/src/FunctionalJavascript/WidgetWithoutTypesTest.php
+++ b/core/modules/media_library/tests/src/FunctionalJavascript/WidgetWithoutTypesTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\media_library\FunctionalJavascript;
use Drupal\Core\Url;
diff --git a/core/modules/menu_ui/tests/src/FunctionalJavascript/MenuUiJavascriptTest.php b/core/modules/menu_ui/tests/src/FunctionalJavascript/MenuUiJavascriptTest.php
index 277a67fcff3a..547161c321eb 100644
--- a/core/modules/menu_ui/tests/src/FunctionalJavascript/MenuUiJavascriptTest.php
+++ b/core/modules/menu_ui/tests/src/FunctionalJavascript/MenuUiJavascriptTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\menu_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/migrate_drupal_ui/tests/src/FunctionalJavascript/SettingsTest.php b/core/modules/migrate_drupal_ui/tests/src/FunctionalJavascript/SettingsTest.php
index 18ec74bb16de..7ae0a1951c00 100644
--- a/core/modules/migrate_drupal_ui/tests/src/FunctionalJavascript/SettingsTest.php
+++ b/core/modules/migrate_drupal_ui/tests/src/FunctionalJavascript/SettingsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\migrate_drupal_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/node/tests/src/FunctionalJavascript/CollapsedSummariesTest.php b/core/modules/node/tests/src/FunctionalJavascript/CollapsedSummariesTest.php
index e6736c9ea6f4..73d15194a553 100644
--- a/core/modules/node/tests/src/FunctionalJavascript/CollapsedSummariesTest.php
+++ b/core/modules/node/tests/src/FunctionalJavascript/CollapsedSummariesTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\node\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/node/tests/src/FunctionalJavascript/ContextualLinksTest.php b/core/modules/node/tests/src/FunctionalJavascript/ContextualLinksTest.php
index 27b42f63aa87..a390401c70ce 100644
--- a/core/modules/node/tests/src/FunctionalJavascript/ContextualLinksTest.php
+++ b/core/modules/node/tests/src/FunctionalJavascript/ContextualLinksTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\node\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/node/tests/src/FunctionalJavascript/NodeDeleteConfirmTest.php b/core/modules/node/tests/src/FunctionalJavascript/NodeDeleteConfirmTest.php
index bc9228a561eb..782e3fc65fe8 100644
--- a/core/modules/node/tests/src/FunctionalJavascript/NodeDeleteConfirmTest.php
+++ b/core/modules/node/tests/src/FunctionalJavascript/NodeDeleteConfirmTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\node\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/node/tests/src/FunctionalJavascript/NodePreviewLinkTest.php b/core/modules/node/tests/src/FunctionalJavascript/NodePreviewLinkTest.php
index 5265eb9e844d..c557006ffa24 100644
--- a/core/modules/node/tests/src/FunctionalJavascript/NodePreviewLinkTest.php
+++ b/core/modules/node/tests/src/FunctionalJavascript/NodePreviewLinkTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\node\FunctionalJavascript;
use Drupal\filter\Entity\FilterFormat;
diff --git a/core/modules/node/tests/src/FunctionalJavascript/SettingSummariesContentTypeTest.php b/core/modules/node/tests/src/FunctionalJavascript/SettingSummariesContentTypeTest.php
index 99607edd4df8..35dbfb9767e9 100644
--- a/core/modules/node/tests/src/FunctionalJavascript/SettingSummariesContentTypeTest.php
+++ b/core/modules/node/tests/src/FunctionalJavascript/SettingSummariesContentTypeTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\node\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/options/tests/src/FunctionalJavascript/OptionsFieldUITest.php b/core/modules/options/tests/src/FunctionalJavascript/OptionsFieldUITest.php
index c7ec06ee6fac..ad7967369bfc 100644
--- a/core/modules/options/tests/src/FunctionalJavascript/OptionsFieldUITest.php
+++ b/core/modules/options/tests/src/FunctionalJavascript/OptionsFieldUITest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\options\FunctionalJavascript;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/responsive_image/tests/src/FunctionalJavascript/ResponsiveImageFieldUiTest.php b/core/modules/responsive_image/tests/src/FunctionalJavascript/ResponsiveImageFieldUiTest.php
index 73d77b69532b..23d6ffe908fa 100644
--- a/core/modules/responsive_image/tests/src/FunctionalJavascript/ResponsiveImageFieldUiTest.php
+++ b/core/modules/responsive_image/tests/src/FunctionalJavascript/ResponsiveImageFieldUiTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\responsive_image\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/sdc/tests/src/FunctionalJavascript/ComponentRenderTest.php b/core/modules/sdc/tests/src/FunctionalJavascript/ComponentRenderTest.php
index e6dfce6475d4..4d113806caf4 100644
--- a/core/modules/sdc/tests/src/FunctionalJavascript/ComponentRenderTest.php
+++ b/core/modules/sdc/tests/src/FunctionalJavascript/ComponentRenderTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\sdc\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/settings_tray/tests/src/FunctionalJavascript/ConfigAccessTest.php b/core/modules/settings_tray/tests/src/FunctionalJavascript/ConfigAccessTest.php
index a4caea24dbda..47d35f3ec1d7 100644
--- a/core/modules/settings_tray/tests/src/FunctionalJavascript/ConfigAccessTest.php
+++ b/core/modules/settings_tray/tests/src/FunctionalJavascript/ConfigAccessTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\settings_tray\FunctionalJavascript;
use Drupal\menu_link_content\Entity\MenuLinkContent;
diff --git a/core/modules/settings_tray/tests/src/FunctionalJavascript/OverriddenConfigurationTest.php b/core/modules/settings_tray/tests/src/FunctionalJavascript/OverriddenConfigurationTest.php
index dce73309893d..86d4a25f07bd 100644
--- a/core/modules/settings_tray/tests/src/FunctionalJavascript/OverriddenConfigurationTest.php
+++ b/core/modules/settings_tray/tests/src/FunctionalJavascript/OverriddenConfigurationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\settings_tray\FunctionalJavascript;
use Drupal\block\Entity\Block;
diff --git a/core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayBlockFormTest.php b/core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayBlockFormTest.php
index 8be731053d7e..6741ab1294e0 100644
--- a/core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayBlockFormTest.php
+++ b/core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayBlockFormTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\settings_tray\FunctionalJavascript;
use Drupal\settings_tray_test\Plugin\Block\SettingsTrayFormAnnotationIsClassBlock;
diff --git a/core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayTestBase.php b/core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayTestBase.php
index 5d3ca1c368f4..8bd960e9f3e5 100644
--- a/core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayTestBase.php
+++ b/core/modules/settings_tray/tests/src/FunctionalJavascript/SettingsTrayTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\settings_tray\FunctionalJavascript;
use Drupal\block\Entity\Block;
diff --git a/core/modules/statistics/tests/src/FunctionalJavascript/StatisticsLoggingTest.php b/core/modules/statistics/tests/src/FunctionalJavascript/StatisticsLoggingTest.php
index 9bd055af1a2f..8b0e57b74583 100644
--- a/core/modules/statistics/tests/src/FunctionalJavascript/StatisticsLoggingTest.php
+++ b/core/modules/statistics/tests/src/FunctionalJavascript/StatisticsLoggingTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\statistics\FunctionalJavascript;
use Drupal\Core\Session\AccountInterface;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/Batch/ProcessingTest.php b/core/modules/system/tests/src/FunctionalJavascript/Batch/ProcessingTest.php
index 79e3982312a9..3d34c1628a8c 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/Batch/ProcessingTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/Batch/ProcessingTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript\Batch;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/CopyFieldValueTest.php b/core/modules/system/tests/src/FunctionalJavascript/CopyFieldValueTest.php
index a53512ce2135..1e524de1d02a 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/CopyFieldValueTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/CopyFieldValueTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/Form/DevelopmentSettingsFormTest.php b/core/modules/system/tests/src/FunctionalJavascript/Form/DevelopmentSettingsFormTest.php
index acd2899059d5..49943d8023b7 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/Form/DevelopmentSettingsFormTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/Form/DevelopmentSettingsFormTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript\Form;
use Drupal\Core\Cache\NullBackend;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/Form/ElementsTableSelectTest.php b/core/modules/system/tests/src/FunctionalJavascript/Form/ElementsTableSelectTest.php
index 2cfb76dbd0bf..b395e5628597 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/Form/ElementsTableSelectTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/Form/ElementsTableSelectTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript\Form;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/Form/RebuildTest.php b/core/modules/system/tests/src/FunctionalJavascript/Form/RebuildTest.php
index f2d8844adb57..4fd1acb9dae4 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/Form/RebuildTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/Form/RebuildTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript\Form;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/Form/TriggeringElementTest.php b/core/modules/system/tests/src/FunctionalJavascript/Form/TriggeringElementTest.php
index 089cbc49f872..01db4e524f82 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/Form/TriggeringElementTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/Form/TriggeringElementTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript\Form;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/FrameworkTest.php b/core/modules/system/tests/src/FunctionalJavascript/FrameworkTest.php
index 536ae4ea5d17..1f03dcb01146 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/FrameworkTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/FrameworkTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/ModalRendererTest.php b/core/modules/system/tests/src/FunctionalJavascript/ModalRendererTest.php
index 2cec0b84e2f7..2821a6e1a934 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/ModalRendererTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/ModalRendererTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/ModuleFilterTest.php b/core/modules/system/tests/src/FunctionalJavascript/ModuleFilterTest.php
index e9ce2901c07e..02115807ddd8 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/ModuleFilterTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/ModuleFilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/ModuleUninstallFilterTest.php b/core/modules/system/tests/src/FunctionalJavascript/ModuleUninstallFilterTest.php
index c5423aa21e39..b4bb3718d441 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/ModuleUninstallFilterTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/ModuleUninstallFilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/OffCanvasTest.php b/core/modules/system/tests/src/FunctionalJavascript/OffCanvasTest.php
index 9e3a21977e71..92c0c134f0cf 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/OffCanvasTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/OffCanvasTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript;
/**
diff --git a/core/modules/system/tests/src/FunctionalJavascript/OffCanvasTestBase.php b/core/modules/system/tests/src/FunctionalJavascript/OffCanvasTestBase.php
index 50f4f1b0e0b9..6d3c900ff332 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/OffCanvasTestBase.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/OffCanvasTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/System/DateFormatTest.php b/core/modules/system/tests/src/FunctionalJavascript/System/DateFormatTest.php
index 9afcd6e198c7..f7113a619da6 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/System/DateFormatTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/System/DateFormatTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript\System;
use Drupal\Core\Datetime\Entity\DateFormat;
diff --git a/core/modules/system/tests/src/FunctionalJavascript/ThemeSettingsFormTest.php b/core/modules/system/tests/src/FunctionalJavascript/ThemeSettingsFormTest.php
index bba4fc62d76b..8ad55fce4db8 100644
--- a/core/modules/system/tests/src/FunctionalJavascript/ThemeSettingsFormTest.php
+++ b/core/modules/system/tests/src/FunctionalJavascript/ThemeSettingsFormTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\system\FunctionalJavascript;
use Drupal\file\Entity\File;
diff --git a/core/modules/text/tests/src/FunctionalJavascript/TextareaWithSummaryTest.php b/core/modules/text/tests/src/FunctionalJavascript/TextareaWithSummaryTest.php
index 33487b9d60cd..02a2e0f345c3 100644
--- a/core/modules/text/tests/src/FunctionalJavascript/TextareaWithSummaryTest.php
+++ b/core/modules/text/tests/src/FunctionalJavascript/TextareaWithSummaryTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\text\FunctionalJavascript;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarActiveTrailTest.php b/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarActiveTrailTest.php
index e6342ae13192..d54c2d6a1250 100644
--- a/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarActiveTrailTest.php
+++ b/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarActiveTrailTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\toolbar\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarIntegrationTest.php b/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarIntegrationTest.php
index 9666a3af81db..5c327a71e81a 100644
--- a/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarIntegrationTest.php
+++ b/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarIntegrationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\toolbar\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarStoredStateTest.php b/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarStoredStateTest.php
index ad8e59aa1a58..9f22e736d568 100644
--- a/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarStoredStateTest.php
+++ b/core/modules/toolbar/tests/src/FunctionalJavascript/ToolbarStoredStateTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\toolbar\FunctionalJavascript;
use Drupal\Component\Serialization\Json;
diff --git a/core/modules/tour/tests/src/FunctionalJavascript/TourJavascriptTest.php b/core/modules/tour/tests/src/FunctionalJavascript/TourJavascriptTest.php
index 51494d25e3ed..7fe9e9d88b9b 100644
--- a/core/modules/tour/tests/src/FunctionalJavascript/TourJavascriptTest.php
+++ b/core/modules/tour/tests/src/FunctionalJavascript/TourJavascriptTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\tour\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/user/tests/src/FunctionalJavascript/PasswordConfirmWidgetTest.php b/core/modules/user/tests/src/FunctionalJavascript/PasswordConfirmWidgetTest.php
index 3ec20f25ac34..aafd4fc6315e 100644
--- a/core/modules/user/tests/src/FunctionalJavascript/PasswordConfirmWidgetTest.php
+++ b/core/modules/user/tests/src/FunctionalJavascript/PasswordConfirmWidgetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\user\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/user/tests/src/FunctionalJavascript/PermissionFilterTest.php b/core/modules/user/tests/src/FunctionalJavascript/PermissionFilterTest.php
index b98e2448eb9f..67ccc3a6fb7f 100644
--- a/core/modules/user/tests/src/FunctionalJavascript/PermissionFilterTest.php
+++ b/core/modules/user/tests/src/FunctionalJavascript/PermissionFilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\user\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/user/tests/src/FunctionalJavascript/RegistrationWithUserFieldsTest.php b/core/modules/user/tests/src/FunctionalJavascript/RegistrationWithUserFieldsTest.php
index da488b759840..488fa96778b1 100644
--- a/core/modules/user/tests/src/FunctionalJavascript/RegistrationWithUserFieldsTest.php
+++ b/core/modules/user/tests/src/FunctionalJavascript/RegistrationWithUserFieldsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\user\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/user/tests/src/FunctionalJavascript/UserPasswordResetTest.php b/core/modules/user/tests/src/FunctionalJavascript/UserPasswordResetTest.php
index df8dbdc300b5..a331f01564e2 100644
--- a/core/modules/user/tests/src/FunctionalJavascript/UserPasswordResetTest.php
+++ b/core/modules/user/tests/src/FunctionalJavascript/UserPasswordResetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\user\FunctionalJavascript;
use Drupal\Core\Database\Database;
diff --git a/core/modules/user/tests/src/FunctionalJavascript/UserPermissionsTest.php b/core/modules/user/tests/src/FunctionalJavascript/UserPermissionsTest.php
index cdf593e6fb3a..f24c3aad5672 100644
--- a/core/modules/user/tests/src/FunctionalJavascript/UserPermissionsTest.php
+++ b/core/modules/user/tests/src/FunctionalJavascript/UserPermissionsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\user\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/BlockExposedFilterAJAXTest.php b/core/modules/views/tests/src/FunctionalJavascript/BlockExposedFilterAJAXTest.php
index 27b399434dd9..fe2b4c850897 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/BlockExposedFilterAJAXTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/BlockExposedFilterAJAXTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/ClickSortingAJAXTest.php b/core/modules/views/tests/src/FunctionalJavascript/ClickSortingAJAXTest.php
index f0ea436c11f0..6ab5d105a851 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/ClickSortingAJAXTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/ClickSortingAJAXTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/ExposedFilterAJAXTest.php b/core/modules/views/tests/src/FunctionalJavascript/ExposedFilterAJAXTest.php
index 11511e600824..ab15ec7a9a0a 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/ExposedFilterAJAXTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/ExposedFilterAJAXTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/GlossaryViewTest.php b/core/modules/views/tests/src/FunctionalJavascript/GlossaryViewTest.php
index c296a7f890c1..1366c0a6953e 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/GlossaryViewTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/GlossaryViewTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript;
use Drupal\Core\Url;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/PaginationAJAXTest.php b/core/modules/views/tests/src/FunctionalJavascript/PaginationAJAXTest.php
index 42aacebc1177..e0d9abaf7442 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/PaginationAJAXTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/PaginationAJAXTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/Plugin/BulkOperationsTest.php b/core/modules/views/tests/src/FunctionalJavascript/Plugin/BulkOperationsTest.php
index 37d1e358b3c1..17153865b0e0 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/Plugin/BulkOperationsTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/Plugin/BulkOperationsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript\Plugin;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/ContextualFilterTest.php b/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/ContextualFilterTest.php
index da4759d08bf0..b725bb2dfbe5 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/ContextualFilterTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/ContextualFilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript\Plugin\views\Handler;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/FieldTest.php b/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/FieldTest.php
index a71df488119e..5ae13b70c80c 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/FieldTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/FieldTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript\Plugin\views\Handler;
use Drupal\Tests\SchemaCheckTestTrait;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/FilterTest.php b/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/FilterTest.php
index 1c29ffd56525..9b00504be2a0 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/FilterTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/FilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript\Plugin\views\Handler;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/GroupedExposedFilterTest.php b/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/GroupedExposedFilterTest.php
index 7ab001fddd68..4acf73ff7512 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/GroupedExposedFilterTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/Plugin/views/Handler/GroupedExposedFilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript\Plugin\views\Handler;
use Drupal\field\Entity\FieldConfig;
diff --git a/core/modules/views/tests/src/FunctionalJavascript/RedirectAjaxTest.php b/core/modules/views/tests/src/FunctionalJavascript/RedirectAjaxTest.php
index c07f72446b11..3d5a50e4ca51 100644
--- a/core/modules/views/tests/src/FunctionalJavascript/RedirectAjaxTest.php
+++ b/core/modules/views/tests/src/FunctionalJavascript/RedirectAjaxTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views_ui/tests/src/FunctionalJavascript/AdminAjaxTest.php b/core/modules/views_ui/tests/src/FunctionalJavascript/AdminAjaxTest.php
index 19577fe57d16..38e1a3089b79 100644
--- a/core/modules/views_ui/tests/src/FunctionalJavascript/AdminAjaxTest.php
+++ b/core/modules/views_ui/tests/src/FunctionalJavascript/AdminAjaxTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views_ui/tests/src/FunctionalJavascript/DisplayTest.php b/core/modules/views_ui/tests/src/FunctionalJavascript/DisplayTest.php
index 3d6fdc6bb757..70fb850e6e11 100644
--- a/core/modules/views_ui/tests/src/FunctionalJavascript/DisplayTest.php
+++ b/core/modules/views_ui/tests/src/FunctionalJavascript/DisplayTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views_ui/tests/src/FunctionalJavascript/FieldDialogsTest.php b/core/modules/views_ui/tests/src/FunctionalJavascript/FieldDialogsTest.php
index 1053e6a12763..39f45b482093 100644
--- a/core/modules/views_ui/tests/src/FunctionalJavascript/FieldDialogsTest.php
+++ b/core/modules/views_ui/tests/src/FunctionalJavascript/FieldDialogsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views_ui/tests/src/FunctionalJavascript/FilterCriteriaTest.php b/core/modules/views_ui/tests/src/FunctionalJavascript/FilterCriteriaTest.php
index f1bc9e42e5c1..a23c72f6ff1a 100644
--- a/core/modules/views_ui/tests/src/FunctionalJavascript/FilterCriteriaTest.php
+++ b/core/modules/views_ui/tests/src/FunctionalJavascript/FilterCriteriaTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views_ui/tests/src/FunctionalJavascript/FilterOptionsTest.php b/core/modules/views_ui/tests/src/FunctionalJavascript/FilterOptionsTest.php
index 7a2b4c75e8e3..f8c15f1d43a3 100644
--- a/core/modules/views_ui/tests/src/FunctionalJavascript/FilterOptionsTest.php
+++ b/core/modules/views_ui/tests/src/FunctionalJavascript/FilterOptionsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views_ui/tests/src/FunctionalJavascript/PreviewTest.php b/core/modules/views_ui/tests/src/FunctionalJavascript/PreviewTest.php
index 4184efd769b6..b9afc6146f16 100644
--- a/core/modules/views_ui/tests/src/FunctionalJavascript/PreviewTest.php
+++ b/core/modules/views_ui/tests/src/FunctionalJavascript/PreviewTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views_ui\FunctionalJavascript;
use Behat\Mink\Element\NodeElement;
diff --git a/core/modules/views_ui/tests/src/FunctionalJavascript/ViewsListingTest.php b/core/modules/views_ui/tests/src/FunctionalJavascript/ViewsListingTest.php
index 93af687ae07d..cd2f7cb9dd11 100644
--- a/core/modules/views_ui/tests/src/FunctionalJavascript/ViewsListingTest.php
+++ b/core/modules/views_ui/tests/src/FunctionalJavascript/ViewsListingTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/views_ui/tests/src/FunctionalJavascript/ViewsWizardTest.php b/core/modules/views_ui/tests/src/FunctionalJavascript/ViewsWizardTest.php
index 0e813c9f37b4..227ccb618e07 100644
--- a/core/modules/views_ui/tests/src/FunctionalJavascript/ViewsWizardTest.php
+++ b/core/modules/views_ui/tests/src/FunctionalJavascript/ViewsWizardTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\views_ui\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/modules/workspaces/tests/src/FunctionalJavascript/WorkspaceToolbarIntegrationTest.php b/core/modules/workspaces/tests/src/FunctionalJavascript/WorkspaceToolbarIntegrationTest.php
index c8087090884a..65b9f3d163d2 100644
--- a/core/modules/workspaces/tests/src/FunctionalJavascript/WorkspaceToolbarIntegrationTest.php
+++ b/core/modules/workspaces/tests/src/FunctionalJavascript/WorkspaceToolbarIntegrationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\workspaces\FunctionalJavascript;
use Drupal\Tests\system\FunctionalJavascript\OffCanvasTestBase;
diff --git a/core/phpcs.xml.dist b/core/phpcs.xml.dist
index 74776964a318..ec7fb9dc49ae 100644
--- a/core/phpcs.xml.dist
+++ b/core/phpcs.xml.dist
@@ -274,8 +274,10 @@
</properties>
<!-- @todo Broaden this in https://www.drupal.org/project/drupal/issues/3400434 -->
<!-- <include-pattern>*/tests/*</include-pattern> -->
- <include-pattern>./tests/Drupal/BuildTests/*</include-pattern>
+ <include-pattern>*/tests/src/FunctionalJavascript/*</include-pattern>
<include-pattern>*/tests/src/Traits/*</include-pattern>
+ <include-pattern>./tests/Drupal/BuildTests/*</include-pattern>
+ <include-pattern>./tests/Drupal/FunctionalJavascriptTests/*</include-pattern>
<include-pattern>./tests/Drupal/Tests/*Trait.php</include-pattern>
<include-pattern>./tests/Drupal/Tests/Traits/*</include-pattern>
<exclude-pattern>./tests/Drupal/Tests/Listeners/*</exclude-pattern>
diff --git a/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryFrontPagePerformanceTest.php b/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryFrontPagePerformanceTest.php
index 6a16046f0123..4730e6fcabb1 100644
--- a/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryFrontPagePerformanceTest.php
+++ b/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryFrontPagePerformanceTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\demo_umami\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\PerformanceTestBase;
diff --git a/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryNodePagePerformanceTest.php b/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryNodePagePerformanceTest.php
index d8b22001cf96..2b9287336e6b 100644
--- a/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryNodePagePerformanceTest.php
+++ b/core/profiles/demo_umami/tests/src/FunctionalJavascript/OpenTelemetryNodePagePerformanceTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\demo_umami\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\PerformanceTestBase;
diff --git a/core/profiles/demo_umami/tests/src/FunctionalJavascript/PerformanceTest.php b/core/profiles/demo_umami/tests/src/FunctionalJavascript/PerformanceTest.php
index d89ee8caad95..aec2ec911522 100644
--- a/core/profiles/demo_umami/tests/src/FunctionalJavascript/PerformanceTest.php
+++ b/core/profiles/demo_umami/tests/src/FunctionalJavascript/PerformanceTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\demo_umami\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\PerformanceTestBase;
diff --git a/core/profiles/standard/tests/src/FunctionalJavascript/StandardJavascriptTest.php b/core/profiles/standard/tests/src/FunctionalJavascript/StandardJavascriptTest.php
index 7f4bf7985670..a7ed9e733c1b 100644
--- a/core/profiles/standard/tests/src/FunctionalJavascript/StandardJavascriptTest.php
+++ b/core/profiles/standard/tests/src/FunctionalJavascript/StandardJavascriptTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\standard\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/profiles/standard/tests/src/FunctionalJavascript/StandardPerformanceTest.php b/core/profiles/standard/tests/src/FunctionalJavascript/StandardPerformanceTest.php
index 1d6f184d379e..efa545b1706f 100644
--- a/core/profiles/standard/tests/src/FunctionalJavascript/StandardPerformanceTest.php
+++ b/core/profiles/standard/tests/src/FunctionalJavascript/StandardPerformanceTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\Tests\standard\FunctionalJavascript;
use Drupal\FunctionalJavascriptTests\PerformanceTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxCallbacksTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxCallbacksTest.php
index d9716ac948cb..dace985114b2 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxCallbacksTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxCallbacksTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormCacheTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormCacheTest.php
index eb133d7724c7..ccad0ab51ad0 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormCacheTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormCacheTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\Core\Url;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormImageButtonTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormImageButtonTest.php
index dbac3213156c..4e4ff6f8d29c 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormImageButtonTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormImageButtonTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php
index ead6c9e92421..5deb2d2843a5 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxFormPageCacheTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxInGroupTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxInGroupTest.php
index 8d093569d0d9..cd0b859bc596 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxInGroupTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxInGroupTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxMaintenanceModeTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxMaintenanceModeTest.php
index 4d4d72b8ade2..180381e45c1b 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxMaintenanceModeTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxMaintenanceModeTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxTest.php
index e7d64a8a7422..d6c1f3634e01 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\Component\Utility\UrlHelper;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/CommandsTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/CommandsTest.php
index bf4324966ec7..969e7cc8671e 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/CommandsTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/CommandsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/DialogTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/DialogTest.php
index 5d10e3f0693a..3d9f82bfb007 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/DialogTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/DialogTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\ajax_test\Controller\AjaxTestController;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/ElementValidationTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/ElementValidationTest.php
index b851e12f824d..c430a0819c82 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/ElementValidationTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/ElementValidationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/FocusFirstCommandTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/FocusFirstCommandTest.php
index 3418cd509139..90175f1d7f03 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/FocusFirstCommandTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/FocusFirstCommandTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/FormValuesTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/FormValuesTest.php
index be512f211ed9..c6996f06d31e 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/FormValuesTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/FormValuesTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/MessageCommandTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/MessageCommandTest.php
index bd746db7cb1d..ce9064118eb4 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/MessageCommandTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/MessageCommandTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/MultiFormTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/MultiFormTest.php
index 715b62e974f4..7d18e56aef65 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/MultiFormTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/MultiFormTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/ThrobberTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/ThrobberTest.php
index 77e68d21ec0b..d6ecae566a7c 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Ajax/ThrobberTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Ajax/ThrobberTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Ajax;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/AjaxWaitTest.php b/core/tests/Drupal/FunctionalJavascriptTests/AjaxWaitTest.php
index 819c1d2eb6ad..b61b5c36bbca 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/AjaxWaitTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/AjaxWaitTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
/**
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/BrowserWithJavascriptTest.php b/core/tests/Drupal/FunctionalJavascriptTests/BrowserWithJavascriptTest.php
index 85a171b2a342..ecf579c8cb49 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/BrowserWithJavascriptTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/BrowserWithJavascriptTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
use PHPUnit\Framework\AssertionFailedError;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Core/CsrfTokenRaceTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/CsrfTokenRaceTest.php
index 04307a825f5f..f0208d6d2ddf 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Core/CsrfTokenRaceTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/CsrfTokenRaceTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Core;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Core/Field/TimestampFormatterWithTimeDiffTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/Field/TimestampFormatterWithTimeDiffTest.php
index d43952af1f19..61e2506ffd58 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Core/Field/TimestampFormatterWithTimeDiffTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/Field/TimestampFormatterWithTimeDiffTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Core\Field;
use Drupal\Component\Serialization\Json;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Core/Field/TimestampFormatterWithTimeDiffViewsTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/Field/TimestampFormatterWithTimeDiffViewsTest.php
index 417bb567b2ed..8441abd91d49 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Core/Field/TimestampFormatterWithTimeDiffViewsTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/Field/TimestampFormatterWithTimeDiffViewsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Core\Field;
use Drupal\entity_test\Entity\EntityTest;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/FormGroupingElementsTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/FormGroupingElementsTest.php
index 488e07d20a72..e289fc48baa2 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/FormGroupingElementsTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/FormGroupingElementsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Core\Form;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/JavascriptStatesTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/JavascriptStatesTest.php
index f4ab6ca062f0..ab7425a252d8 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/JavascriptStatesTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/Form/JavascriptStatesTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Core\Form;
use Drupal\filter\Entity\FilterFormat;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Core/JsMessageTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/JsMessageTest.php
index 951330cbd48f..bcd063ee4349 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Core/JsMessageTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/JsMessageTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Core;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Core/MachineNameTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/MachineNameTest.php
index 899b80c50449..57affeb98f6e 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Core/MachineNameTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/MachineNameTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Core;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Core/Session/SessionTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Core/Session/SessionTest.php
index 53a54e3c7d22..d6b6241b1a8c 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Core/Session/SessionTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Core/Session/SessionTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Core\Session;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Dialog/DialogPositionTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Dialog/DialogPositionTest.php
index 0c1f49a17428..c3f9dcd8f8c7 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Dialog/DialogPositionTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Dialog/DialogPositionTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Dialog;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/DrupalSelenium2Driver.php b/core/tests/Drupal/FunctionalJavascriptTests/DrupalSelenium2Driver.php
index 827155cafd53..964639173322 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/DrupalSelenium2Driver.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/DrupalSelenium2Driver.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
use Behat\Mink\Driver\Selenium2Driver;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/EntityReference/EntityReferenceAutocompleteWidgetTest.php b/core/tests/Drupal/FunctionalJavascriptTests/EntityReference/EntityReferenceAutocompleteWidgetTest.php
index 21f60b59b6af..a40e99152389 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/EntityReference/EntityReferenceAutocompleteWidgetTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/EntityReference/EntityReferenceAutocompleteWidgetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\EntityReference;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php b/core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php
index 28cdf9a08f27..da62ab5b483e 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/JSWebAssert.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
use Behat\Mink\Element\Element;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptDeprecationTest.php b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptDeprecationTest.php
index b8c55028dd14..ab4dba1be7c4 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptDeprecationTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptDeprecationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
/**
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptErrorsSuppressionTest.php b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptErrorsSuppressionTest.php
index ad0bd4821759..a310d4c9e6e4 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptErrorsSuppressionTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptErrorsSuppressionTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
/**
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptErrorsTest.php b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptErrorsTest.php
index 69d9bcbfc678..4fe9624a66da 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptErrorsTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptErrorsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
use PHPUnit\Framework\AssertionFailedError;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptGetDrupalSettingsTest.php b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptGetDrupalSettingsTest.php
index 38d4000fcd6b..c9ed7f1d3fc5 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/JavascriptGetDrupalSettingsTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/JavascriptGetDrupalSettingsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
/**
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/MachineName/MachineNameTransliterationTest.php b/core/tests/Drupal/FunctionalJavascriptTests/MachineName/MachineNameTransliterationTest.php
index 42cbb44c9a2c..8a6c37db1aed 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/MachineName/MachineNameTransliterationTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/MachineName/MachineNameTransliterationTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\MachineName;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/PerformanceTestBase.php b/core/tests/Drupal/FunctionalJavascriptTests/PerformanceTestBase.php
index fbd7cd32e0bd..c656e225b50b 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/PerformanceTestBase.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/PerformanceTestBase.php
@@ -1,6 +1,6 @@
<?php
-declare(strict_types = 1);
+declare(strict_types=1);
namespace Drupal\FunctionalJavascriptTests;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/SortableTestTrait.php b/core/tests/Drupal/FunctionalJavascriptTests/SortableTestTrait.php
index dbaf10c8e358..1631f00209cb 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/SortableTestTrait.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/SortableTestTrait.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
/**
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/TableDrag/TableDragTest.php b/core/tests/Drupal/FunctionalJavascriptTests/TableDrag/TableDragTest.php
index 8609cabc8fa0..82ceebe341c3 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/TableDrag/TableDragTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/TableDrag/TableDragTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\TableDrag;
use Behat\Mink\Element\NodeElement;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Tests/DrupalSelenium2DriverTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Tests/DrupalSelenium2DriverTest.php
index 82e26753eb76..45ad21bcf13c 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Tests/DrupalSelenium2DriverTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Tests/DrupalSelenium2DriverTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Tests;
use Drupal\entity_test\Entity\EntityTest;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Tests/JSInteractionTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Tests/JSInteractionTest.php
index 80d2286a6df0..52289bc933a7 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Tests/JSInteractionTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Tests/JSInteractionTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Tests;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Tests/JSWebAssertTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Tests/JSWebAssertTest.php
index 7ed125d0bfae..46b1ac5d01e4 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Tests/JSWebAssertTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Tests/JSWebAssertTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Tests;
use Behat\Mink\Element\NodeElement;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroBlockFilterTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroBlockFilterTest.php
index 3e29ae401128..d8091e1d3c2d 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroBlockFilterTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroBlockFilterTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\Tests\block\FunctionalJavascript\BlockFilterTest;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroEntityDisplayTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroEntityDisplayTest.php
index a70b7cad171a..df19a4986218 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroEntityDisplayTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroEntityDisplayTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\Tests\field_ui\FunctionalJavascript\EntityDisplayTest;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroMenuUiJavascriptTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroMenuUiJavascriptTest.php
index 1ea76271f206..f8f4c950c584 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroMenuUiJavascriptTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroMenuUiJavascriptTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\Tests\menu_ui\FunctionalJavascript\MenuUiJavascriptTest;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroModalDisplayTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroModalDisplayTest.php
index eefaa7cf5a38..7956989b4a24 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroModalDisplayTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroModalDisplayTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroPasswordConfirmWidgetTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroPasswordConfirmWidgetTest.php
index 1bc4b68daa8d..57952ad7b50c 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroPasswordConfirmWidgetTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroPasswordConfirmWidgetTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\Tests\user\FunctionalJavascript\PasswordConfirmWidgetTest;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroTableDragTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroTableDragTest.php
index 189bc9c96da6..5872284d677e 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroTableDragTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroTableDragTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\FunctionalJavascriptTests\TableDrag\TableDragTest;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroViewsBulkOperationsTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroViewsBulkOperationsTest.php
index bca5d973abab..058557e3cdd3 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroViewsBulkOperationsTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroViewsBulkOperationsTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroViewsUiTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroViewsUiTest.php
index ff9a816715a2..9b1a97e0c19e 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroViewsUiTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/ClaroViewsUiTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/Theme/OliveroMessagesTest.php b/core/tests/Drupal/FunctionalJavascriptTests/Theme/OliveroMessagesTest.php
index 31dd15db58fc..ac880f12223a 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/Theme/OliveroMessagesTest.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/Theme/OliveroMessagesTest.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests\Theme;
use Drupal\FunctionalJavascriptTests\Core\JsMessageTest;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/WebDriverCurlService.php b/core/tests/Drupal/FunctionalJavascriptTests/WebDriverCurlService.php
index 9a8eb4a4ae94..acd66c5e185c 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/WebDriverCurlService.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/WebDriverCurlService.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
use WebDriver\Service\CurlService;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php b/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php
index 02fbe1ff1f77..0ce8dddf6775 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/WebDriverTestBase.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
use Behat\Mink\Exception\DriverException;
diff --git a/core/tests/Drupal/FunctionalJavascriptTests/WebDriverWebAssert.php b/core/tests/Drupal/FunctionalJavascriptTests/WebDriverWebAssert.php
index 93995f459ee6..497d69629df4 100644
--- a/core/tests/Drupal/FunctionalJavascriptTests/WebDriverWebAssert.php
+++ b/core/tests/Drupal/FunctionalJavascriptTests/WebDriverWebAssert.php
@@ -1,5 +1,7 @@
<?php
+declare(strict_types=1);
+
namespace Drupal\FunctionalJavascriptTests;
/**
--
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