Issue #3445847 by mstrelan: PHPUnit 10 behaves differently when invoked outside web root

core/modules/file/tests/src/Kernel/FileSaveUploadTest.php

@@ -33,9 +33,8 @@ class FileSaveUploadTest extends KernelTestBase {
    * {@inheritdoc}
    */
   protected function setUp(): void {
-    \file_put_contents('test.bbb', 'test');
-
     parent::setUp();
+    \file_put_contents('test.bbb', 'test');
     $request = new Request();
     $request->files->set('files', [
       'file' => new UploadedFile(
@@ -53,6 +52,14 @@ protected function setUp(): void {
     $this->container->set('request_stack', $requestStack);
   }
 
+  /**
+   * {@inheritdoc}
+   */
+  protected function tearDown(): void {
+    \unlink('test.bbb');
+    parent::tearDown();
+  }
+
   /**
    * Tests file_save_upload() with empty extensions.
    */

core/tests/Drupal/KernelTests/Core/Database/DriverSpecificKernelTestBase.php

@@ -31,6 +31,7 @@ protected function setUp(): void {
     // is not the one the test requires, skip before test database
     // initialization so to save cycles.
     $this->root = static::getDrupalRoot();
+    chdir($this->root);
     $connectionInfo = $this->getDatabaseConnectionInfo();
     $test_class_parts = explode('\\', get_class($this));
     $expected_provider = $test_class_parts[2] ?? '';

core/tests/Drupal/KernelTests/KernelTestBase.php

@@ -242,6 +242,7 @@ protected function setUp(): void {
     $this->registerComparator(new MarkupInterfaceComparator());
 
     $this->root = static::getDrupalRoot();
+    chdir($this->root);
     $this->initFileCache();
     $this->bootEnvironment();
     $this->bootKernel();

core/tests/Drupal/Tests/BrowserTestBase.php

@@ -352,6 +352,7 @@ protected function setUp(): void {
     parent::setUp();
 
     $this->setUpAppRoot();
+    chdir($this->root);
 
     // Allow tests to compare MarkupInterface objects via assertEquals().
     $this->registerComparator(new MarkupInterfaceComparator());

core/tests/Drupal/Tests/Core/Command/QuickStartTest.php

@@ -56,6 +56,7 @@ protected function setUp(): void {
     $php_executable_finder = new PhpExecutableFinder();
     $this->php = $php_executable_finder->find();
     $this->root = dirname(substr(__DIR__, 0, -strlen(__NAMESPACE__)), 2);
+    chdir($this->root);
     if (!is_writable("{$this->root}/sites/simpletest")) {
       $this->markTestSkipped('This test requires a writable sites/simpletest directory');
     }

core/tests/Drupal/Tests/UnitTestCase.php

@@ -62,6 +62,7 @@ protected function setUp(): void {
     FileCacheFactory::setPrefix('prefix');
 
     $this->root = dirname(substr(__DIR__, 0, -strlen(__NAMESPACE__)), 2);
+    chdir($this->root);
   }
 
   /**

core/tests/bootstrap.php

@@ -183,7 +183,3 @@ class_alias('\Drupal\Tests\DocumentElement', '\Behat\Mink\Element\DocumentElemen
 if ($browserTestOutputDirectory !== FALSE) {
   HtmlOutputLogger::init($browserTestOutputDirectory, (bool) getenv('BROWSERTEST_OUTPUT_VERBOSE') ?? FALSE);
 }
-
-// Drupal expects to be run from its root directory. This ensures all test types
-// are consistent.
-chdir(dirname(__DIR__, 2));