class QueryParameterTest

class QueryParameterTest extends UnitTestCase {
  
  /**
   * Tests the getArgument() method.
   *
   * @covers ::getArgument
   * @dataProvider providerGetArgument
   */
  public function testGetArgument($options, Request $request, $expected) {
    $view = $this->getMockBuilder('Drupal\\views\\ViewExecutable')
      ->disableOriginalConstructor()
      ->onlyMethods([])
      ->getMock();
    $view->setRequest($request);
    $display_plugin = $this->getMockBuilder('Drupal\\views\\Plugin\\views\\display\\DisplayPluginBase')
      ->disableOriginalConstructor()
      ->getMock();
    $raw = new QueryParameter([], 'query_parameter', []);
    $raw->init($view, $display_plugin, $options);
    $this->assertEquals($expected, $raw->getArgument());
  }
  
  /**
   * Provides data for testGetArgument().
   *
   * @return array
   *   An array of test data, with the following entries:
   *   - first entry: the options for the plugin.
   *   - second entry: the request object to test with.
   *   - third entry: the expected default argument value.
   */
  public function providerGetArgument() {
    $data = [];
    $data[] = [
      [
        'query_param' => 'test',
      ],
      new Request([
        'test' => 'data',
      ]),
      'data',
    ];
    $data[] = [
      [
        'query_param' => 'test',
        'multiple' => 'and',
      ],
      new Request([
        'test' => [
          'data1',
          'data2',
        ],
      ]),
      'data1,data2',
    ];
    $data[] = [
      [
        'query_param' => 'test',
        'multiple' => 'or',
      ],
      new Request([
        'test' => [
          'data1',
          'data2',
        ],
      ]),
      'data1+data2',
    ];
    $data[] = [
      [
        'query_param' => 'test',
        'fallback' => 'blub',
      ],
      new Request([]),
      'blub',
    ];
    $data[] = [
      [
        'query_param' => 'test[tier1][tier2][tier3]',
      ],
      new Request([
        'test' => [
          'tier1' => [
            'tier2' => [
              'tier3' => 'foo',
            ],
          ],
        ],
      ]),
      'foo',
    ];
    $data[] = [
      [
        'query_param' => 'test[tier1][tier2]',
      ],
      new Request([
        'test' => [
          'tier1' => [
            'tier2' => [
              'foo',
              'bar',
            ],
          ],
        ],
      ]),
      'foo,bar',
    ];
    $data[] = [
      [
        'query_param' => 'test[tier1][tier2]',
      ],
      new Request([
        'test' => 'foo',
      ]),
      NULL,
    ];
    return $data;
  }

}