function BookUninstallTest::testBookUninstall

Tests the book_system_info_alter() method.

File

core/modules/book/tests/src/Kernel/BookUninstallTest.php, line 51

Class

BookUninstallTest

Tests that the Book module cannot be uninstalled if books exist.

Namespace

Code

public function testBookUninstall() : void {
  // No nodes exist.
  $validation_reasons = \Drupal::service('module_installer')->validateUninstall([
    'book',
  ]);
  $this->assertEquals([], $validation_reasons, 'The book module is not required.');
  $content_type = NodeType::create([
    'type' => $this->randomMachineName(),
    'name' => $this->randomString(),
  ]);
  $content_type->save();
  $book_config = $this->config('book.settings');
  $allowed_types = $book_config->get('allowed_types');
  $allowed_types[] = $content_type->id();
  $book_config->set('allowed_types', $allowed_types)
    ->save();
  $node = Node::create([
    'title' => $this->randomString(),
    'type' => $content_type->id(),
  ]);
  $node->book['bid'] = 'new';
  $node->save();
  // One node in a book but not of type book.
  $validation_reasons = \Drupal::service('module_installer')->validateUninstall([
    'book',
  ]);
  $this->assertEquals([
    'To uninstall Book, delete all content that is part of a book',
  ], $validation_reasons['book']);
  $book_node = Node::create([
    'title' => $this->randomString(),
    'type' => 'book',
  ]);
  $book_node->book['bid'] = FALSE;
  $book_node->save();
  // Two nodes, one in a book but not of type book and one book node (which is
  // not in a book).
  $validation_reasons = \Drupal::service('module_installer')->validateUninstall([
    'book',
  ]);
  $this->assertEquals([
    'To uninstall Book, delete all content that is part of a book',
  ], $validation_reasons['book']);
  $node->delete();
  // One node of type book but not actually part of a book.
  $validation_reasons = \Drupal::service('module_installer')->validateUninstall([
    'book',
  ]);
  $this->assertEquals([
    'To uninstall Book, delete all content that has the Book content type',
  ], $validation_reasons['book']);
  $book_node->delete();
  // No nodes exist therefore the book module is not required.
  $module_data = \Drupal::service('extension.list.module')->getList();
  $this->assertFalse(isset($module_data['book']->info['required']), 'The book module is not required.');
  $node = Node::create([
    'title' => $this->randomString(),
    'type' => $content_type->id(),
  ]);
  $node->save();
  // One node exists but is not part of a book therefore the book module is
  // not required.
  $validation_reasons = \Drupal::service('module_installer')->validateUninstall([
    'book',
  ]);
  $this->assertEquals([], $validation_reasons, 'The book module is not required.');
  // Uninstall the Book module and check the node type is deleted.
  \Drupal::service('module_installer')->uninstall([
    'book',
  ]);
  $this->assertNull(NodeType::load('book'), "The book node type does not exist.");
}