function MenuTreeStorageTest::testMenuRebuild

Ensure hierarchy persists after a menu rebuild.

File

core/tests/Drupal/KernelTests/Core/Menu/MenuTreeStorageTest.php, line 320

Class

MenuTreeStorageTest

Tests the menu tree storage.

Namespace

Code

public function testMenuRebuild() {
    // 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'));
    // Intentionally leave child3 out to mimic static or external links.
    $definitions = $this->treeStorage
        ->loadMultiple([
        'root',
        'child1',
        'child2',
        'child4',
    ]);
    $this->treeStorage
        ->rebuild($definitions);
    $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'));
}