function MenuTreeStorageTest::testSubtreeHeight

Tests finding the subtree height with content menu links.

File

core/tests/Drupal/KernelTests/Core/Menu/MenuTreeStorageTest.php, line 302

Class

MenuTreeStorageTest

Tests the menu tree storage.

Namespace

Code

public function testSubtreeHeight() : void {
  // root
  // - child1
  // -- child2
  // --- child3
  // ---- child4
  $this->addMenuLink('root');
  $this->addMenuLink('child1', 'root');
  $this->addMenuLink('child2', 'child1');
  $this->addMenuLink('child3', 'child2');
  $this->addMenuLink('child4', 'child3');
  $this->assertEquals(5, $this->treeStorage
    ->getSubtreeHeight('root'));
  $this->assertEquals(4, $this->treeStorage
    ->getSubtreeHeight('child1'));
  $this->assertEquals(3, $this->treeStorage
    ->getSubtreeHeight('child2'));
  $this->assertEquals(2, $this->treeStorage
    ->getSubtreeHeight('child3'));
  $this->assertEquals(1, $this->treeStorage
    ->getSubtreeHeight('child4'));
}