drupalcampbristol/core/modules/user/src/Tests/UserDeleteTest.php

<?php

namespace Drupal\user\Tests;

use Drupal\simpletest\WebTestBase;
use Drupal\user\Entity\User;

/**
 * Tests account deleting of users.
 *
 * @group user
 */
class UserDeleteTest extends WebTestBase {

  /**
   * Test deleting multiple users.
   */
  function testUserDeleteMultiple() {
    // Create a few users with permissions, so roles will be created.
    $user_a = $this->drupalCreateUser(array('access user profiles'));
    $user_b = $this->drupalCreateUser(array('access user profiles'));
    $user_c = $this->drupalCreateUser(array('access user profiles'));

    $uids = array($user_a->id(), $user_b->id(), $user_c->id());

    // These users should have a role
    $query = db_select('user__roles', 'r');
    $roles_created = $query
      ->fields('r', array('entity_id'))
      ->condition('entity_id', $uids, 'IN')
      ->countQuery()
      ->execute()
      ->fetchField();

    $this->assertTrue($roles_created > 0, 'Role assignments created for new users and deletion of role assignments can be tested');
    // We should be able to load one of the users.
    $this->assertTrue(User::load($user_a->id()), 'User is created and deletion of user can be tested');
    // Delete the users.
    user_delete_multiple($uids);
    // Test if the roles assignments are deleted.
    $query = db_select('user__roles', 'r');
    $roles_after_deletion = $query
      ->fields('r', array('entity_id'))
      ->condition('entity_id', $uids, 'IN')
      ->countQuery()
      ->execute()
      ->fetchField();
    $this->assertTrue($roles_after_deletion == 0, 'Role assignments deleted along with users');
    // Test if the users are deleted, User::load() will return NULL.
    $this->assertNull(User::load($user_a->id()), format_string('User with id @uid deleted.', array('@uid' => $user_a->id())));
    $this->assertNull(User::load($user_b->id()), format_string('User with id @uid deleted.', array('@uid' => $user_b->id())));
    $this->assertNull(User::load($user_c->id()), format_string('User with id @uid deleted.', array('@uid' => $user_c->id())));
  }

}