AttributeHelperTest.php in Drupal 8

Namespace

Drupal\Tests\Core\Template

File

core/tests/Drupal/Tests/Core/Template/AttributeHelperTest.php

<?php

namespace Drupal\Tests\Core\Template;

use Drupal\Core\Template\Attribute;
use Drupal\Core\Template\AttributeHelper;
use Drupal\Tests\UnitTestCase;

/**
 * @coversDefaultClass \Drupal\Core\Template\AttributeHelper
 * @group Template
 */
class AttributeHelperTest extends UnitTestCase {

  /**
   * Provides tests data for testAttributeExists
   *
   * @return array
   *   An array of test data each containing an array of attributes, the name
   *   of the attribute to check existence of, and the expected result.
   */
  public function providerTestAttributeExists() {
    return [
      [
        [
          'class' => [
            'example-class',
          ],
        ],
        'class',
        TRUE,
      ],
      [
        [],
        'class',
        FALSE,
      ],
      [
        [
          'class' => [
            'example-class',
          ],
        ],
        'id',
        FALSE,
      ],
      [
        [
          'class' => [
            'example-class',
          ],
          'id' => 'foo',
        ],
        'id',
        TRUE,
      ],
      [
        [
          'id' => 'foo',
        ],
        'class',
        FALSE,
      ],
    ];
  }

  /**
   * @covers ::attributeExists
   * @dataProvider providerTestAttributeExists
   */
  public function testAttributeExists(array $test_data, $test_attribute, $expected) {
    $this
      ->assertSame($expected, AttributeHelper::attributeExists($test_attribute, $test_data));
    $attributes = new Attribute($test_data);
    $this
      ->assertSame($expected, AttributeHelper::attributeExists($test_attribute, $attributes));
  }

  /**
   * Provides tests data for testMergeCollections
   *
   * @return array
   *   An array of test data each containing an initial attribute collection, an
   *   Attribute object or array to be merged, and the expected result.
   */
  public function providerTestMergeCollections() {
    return [
      [
        [],
        [
          'class' => [
            'class1',
          ],
        ],
        [
          'class' => [
            'class1',
          ],
        ],
      ],
      [
        [],
        new Attribute([
          'class' => [
            'class1',
          ],
        ]),
        [
          'class' => [
            'class1',
          ],
        ],
      ],
      [
        [
          'class' => [
            'example-class',
          ],
        ],
        [
          'class' => [
            'class1',
          ],
        ],
        [
          'class' => [
            'example-class',
            'class1',
          ],
        ],
      ],
      [
        [
          'class' => [
            'example-class',
          ],
        ],
        new Attribute([
          'class' => [
            'class1',
          ],
        ]),
        [
          'class' => [
            'example-class',
            'class1',
          ],
        ],
      ],
      [
        [
          'class' => [
            'example-class',
          ],
        ],
        [
          'id' => 'foo',
          'href' => 'bar',
        ],
        [
          'class' => [
            'example-class',
          ],
          'id' => 'foo',
          'href' => 'bar',
        ],
      ],
      [
        [
          'class' => [
            'example-class',
          ],
        ],
        new Attribute([
          'id' => 'foo',
          'href' => 'bar',
        ]),
        [
          'class' => [
            'example-class',
          ],
          'id' => 'foo',
          'href' => 'bar',
        ],
      ],
    ];
  }

  /**
   * @covers ::mergeCollections
   * @dataProvider providerTestMergeCollections
   */
  public function testMergeCollections($original, $merge, $expected) {
    $this
      ->assertEquals($expected, AttributeHelper::mergeCollections($original, $merge));
    $this
      ->assertEquals(new Attribute($expected), AttributeHelper::mergeCollections(new Attribute($original), $merge));
  }

  /**
   * @covers ::mergeCollections
   */
  public function testMergeCollectionsArgumentException() {
    $attributes = new Attribute([
      'class' => [
        'example-class',
      ],
    ]);
    $this
      ->expectException(\InvalidArgumentException::class);
    $this
      ->expectExceptionMessage('Invalid collection argument');
    AttributeHelper::mergeCollections($attributes, 'not an array');
    $this
      ->expectException(\InvalidArgumentException::class);
    $this
      ->expectExceptionMessage('Invalid collection argument');
    AttributeHelper::mergeCollections('not an array', $attributes);
  }

}

Classes

Name	Description
AttributeHelperTest	@coversDefaultClass \Drupal\Core\Template\AttributeHelper @group Template