function DefaultMenuLinkTreeManipulatorsTest::testFlatten

Tests the flatten() tree manipulator.

@covers ::flatten

File

core/tests/Drupal/Tests/Core/Menu/DefaultMenuLinkTreeManipulatorsTest.php, line 285

Class

DefaultMenuLinkTreeManipulatorsTest

Tests the default menu link tree manipulators.

Namespace

Code

public function testFlatten() : void {
    $this->mockTree();
    $tree = $this->defaultMenuTreeManipulators
        ->flatten($this->originalTree);
    $this->assertEquals([
        1,
        2,
        5,
        6,
        8,
        9,
    ], array_keys($this->originalTree));
    $this->assertEquals([
        1,
        2,
        5,
        6,
        8,
        9,
        3,
        4,
        7,
    ], array_keys($tree));
}