function BookTest::testGetTableOfContents

Tests BookManager::getTableOfContents().

File

core/modules/book/tests/src/Functional/BookTest.php, line 344

Class

BookTest

Create a book, add pages, and test book interface.

Namespace

Code

public function testGetTableOfContents() {
  // Create new book.
  $nodes = $this->createBook();
  $book = $this->book;
  $this->drupalLogin($this->bookAuthor);
  
  /*
   * Add Node 5 under Node 2.
   * Add Node 6, 7, 8, 9, 10, 11 under Node 3.
   * Book
   *  |- Node 0
   *   |- Node 1
   *   |- Node 2
   *    |- Node 5
   *  |- Node 3
   *   |- Node 6
   *    |- Node 7
   *     |- Node 8
   *      |- Node 9
   *       |- Node 10
   *        |- Node 11
   *  |- Node 4
   */
  foreach ([
    5 => 2,
    6 => 3,
    7 => 6,
    8 => 7,
    9 => 8,
    10 => 9,
    11 => 10,
  ] as $child => $parent) {
    $nodes[$child] = $this->createBookNode($book->id(), $nodes[$parent]->id());
  }
  $this->drupalGet($nodes[0]->toUrl('edit-form'));
  // Since Node 0 has children 2 levels deep, nodes 10 and 11 should not
  // appear in the selector.
  $this->assertSession()
    ->optionNotExists('edit-book-pid', $nodes[10]->id());
  $this->assertSession()
    ->optionNotExists('edit-book-pid', $nodes[11]->id());
  // Node 9 should be available as an option.
  $this->assertSession()
    ->optionExists('edit-book-pid', $nodes[9]->id());
  // Get a shallow set of options.
  /** @var \Drupal\book\BookManagerInterface $manager */
  $manager = $this->container
    ->get('book.manager');
  $options = $manager->getTableOfContents($book->id(), 3);
  // Verify that all expected option keys are present.
  $expected_nids = [
    $book->id(),
    $nodes[0]->id(),
    $nodes[1]->id(),
    $nodes[2]->id(),
    $nodes[3]->id(),
    $nodes[6]->id(),
    $nodes[4]->id(),
  ];
  $this->assertEquals($expected_nids, array_keys($options));
  // Exclude Node 3.
  $options = $manager->getTableOfContents($book->id(), 3, [
    $nodes[3]->id(),
  ]);
  // Verify that expected option keys are present after excluding Node 3.
  $expected_nids = [
    $book->id(),
    $nodes[0]->id(),
    $nodes[1]->id(),
    $nodes[2]->id(),
    $nodes[4]->id(),
  ];
  $this->assertEquals($expected_nids, array_keys($options));
}