Issue # 3513301: Added an initial Basic Test Class file.

Closes #3513301

tests/src/Functional/TimepickerAdminTest.php

+<?php
+
+namespace Drupal\Tests\timepicker\Functional;
+
+use Drupal\Tests\BrowserTestBase;
+use Drupal\node\Entity\Node;
+use Drupal\node\Entity\NodeType;
+use Drupal\datetime\Plugin\Field\FieldType\DateTimeItem;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+
+/**
+ * Tests the Timepicker module.
+ *
+ * @group timepicker
+ */
+class TimepickerAdminTest extends BrowserTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = ['node', 'datetime', 'text', 'timepicker'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * Tests if user can load the front page among other things.
+   */
+  public function testLoadSite() {
+    // Load the front page.
+    $this->drupalGet('<front>');
+
+    // Confirm that the site didn't throw a server error or something else.
+    $this->assertSession()->statusCodeEquals(200);
+    $this->drupalGet("user");
+  }
+
+  /**
+   * Tests if an admin user can log in.
+   */
+  public function testAdminUser() {
+    // Log in an administrative user.
+    $this->drupalLogin($this->rootUser);
+
+    $this->drupalGet('admin/config');
+
+    $session = $this->assertSession();
+    $session->statusCodeEquals(200);
+  }
+
+  /**
+   * Testing to create a node with a datetime textfield.
+   */
+  public function testLoadSiteAfterChanges() {
+    // Create the article content type with a datetime and a text textfield.
+    $node_type = NodeType::create([
+      'type' => 'article',
+    ]);
+    $node_type->save();
+
+    // Add a text field.
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => 'test_field',
+      'entity_type' => 'node',
+      'type' => 'text',
+    ]);
+    $field_storage->save();
+
+    $field = FieldConfig::create([
+      'field_name' => 'test_field',
+      'entity_type' => 'node',
+      'bundle' => 'article',
+      'label' => 'Test field',
+    ]);
+    $field->save();
+
+    // Add a datetime field.
+    $field_datetime_storage = FieldStorageConfig::create([
+      'field_name' => 'field_datetime',
+      'type' => 'datetime',
+      'entity_type' => 'node',
+      'settings' => ['datetime_type' => DateTimeItem::DATETIME_TYPE_DATETIME],
+      'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
+    ]);
+
+    $field_datetime_storage->save();
+
+    $field_datetime = FieldConfig::create([
+      'field_storage' => $field_datetime_storage,
+      'bundle' => 'article',
+    ]);
+
+    $field_datetime->save();
+
+    // Creates two different articles and tests them.
+    $node1 = Node::create([
+      'title' => 'Test node title',
+      'type' => 'article',
+      'test_field' => [
+        'value' => 'foo',
+      ],
+      'field_datetime' => [
+        'value' => "2014-08-22T00:00:00",
+      ],
+    ]);
+    $node1->save();
+
+    $node2 = Node::create([
+      'title' => 'Test node title 2',
+      'type' => 'article',
+      'test_field' => [
+        'value' => 'food',
+      ],
+      'field_datetime' => [
+        'value' => "2023-02-14T00:00:00",
+      ],
+    ]);
+    $node2->save();
+
+    $this->assertNotEquals($node1, $node2, "There was an error creating the content type or the nodes");
+
+  }
+
+  /**
+   * Tests if an admin access to pages again.
+   */
+  public function testAdminUserAfterChanges() {
+    // Log in an administrative user.
+    $this->drupalLogin($this->rootUser);
+
+    $this->drupalGet('admin/modules');
+
+    $session = $this->assertSession();
+    $session->statusCodeEquals(200);
+  }
+
+}