Resolve #3529218 "Test hookuserdelete"

Closes #3529218

tests/src/Kernel/HookUserDeleteTest.php

+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\crm\Kernel;
+
+use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
+use Drupal\crm\Entity\Contact;
+use Drupal\crm\Entity\User;
+
+/**
+ * Tests crm user contact mapping.
+ *
+ * @group crm
+ */
+class HookUserDeleteTest extends EntityKernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'address',
+    'comment',
+    'crm_field',
+    'crm',
+    'datetime',
+    'name',
+    'telephone',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    $this->installEntitySchema('user');
+    $this->installSchema('user', ['users_data']);
+    $this->installEntitySchema('comment');
+    $this->installSchema('comment', ['comment_entity_statistics']);
+    $this->installEntitySchema('crm_contact');
+    $this->installEntitySchema('crm_contact_detail');
+    $this->installEntitySchema('crm_user');
+
+    $this->installConfig(['crm', 'name']);
+
+  }
+
+  /**
+   * Verify the mapping is deleted when a user is deleted.
+   */
+  public function testUserDeleteWithContactMapping(): void {
+    // Create a user.
+    $user_1 = $this->drupalCreateUser();
+    $user_1->save();
+
+    $contact_1 = Contact::create([
+      'name' => 'Test Contact',
+      'bundle' => 'person',
+      'full_name' => [
+        'given_name' => 'Test',
+        'family_name' => 'User 1',
+      ],
+    ]);
+    $contact_1->save();
+
+    $crm_user_1 = User::create([
+      'user' => $user_1->id(),
+      'crm_contact' => $contact_1->id(),
+    ]);
+    $crm_user_1->save();
+
+    $user_2 = $this->drupalCreateUser();
+    $user_2->save();
+
+    $contact_2 = Contact::create([
+      'name' => 'Test Contact 2',
+      'bundle' => 'person',
+      'full_name' => [
+        'given_name' => 'Test',
+        'family_name' => 'User 2',
+      ],
+    ]);
+    $contact_2->save();
+
+    $crm_user_2 = User::create([
+      'user' => $user_2->id(),
+      'crm_contact' => $contact_2->id(),
+    ]);
+    $crm_user_2->save();
+
+    $crm_users = User::loadMultiple();
+    $this->assertCount(2, $crm_users, 'Two crm_user exists.');
+
+    // Delete the first user.
+    $user_1->delete();
+
+    // Reset the user cache to ensure we are working with the latest data.
+    // \Drupal::entityTypeManager()->getStorage('crm_user')->resetCache();
+    $crm_users = User::loadMultiple();
+    $this->assertCount(1, $crm_users, 'One crm_user entity remains after deleting the user.');
+    $crm_user = reset($crm_users);
+    $this->assertEquals($user_2->id(), $crm_user->getUserId(), 'The remaining crm_user entity is linked to the second user.');
+    $this->assertEquals($contact_2->id(), $crm_user->getContactId(), 'The remaining crm_user entity is linked to the second contact.');
+  }
+
+}