class LibraryDiscoveryCollectorTest

class LibraryDiscoveryCollectorTest extends UnitTestCase {
  
  /**
   * The mock cache backend.
   *
   * @var \Drupal\Core\Cache\CacheBackendInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $cache;
  
  /**
   * The mock lock backend.
   *
   * @var \Drupal\Core\Lock\LockBackendInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $lock;
  
  /**
   * The mock library discovery parser.
   *
   * @var \Drupal\Core\Asset\LibraryDiscoveryParser|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $libraryDiscoveryParser;
  
  /**
   * The library discovery collector under test.
   *
   * @var \Drupal\Core\Asset\LibraryDiscoveryCollector
   */
  protected $libraryDiscoveryCollector;
  
  /**
   * The mocked theme manager.
   *
   * @var \Drupal\Core\Theme\ThemeManagerInterface|\PHPUnit\Framework\MockObject\MockObject
   */
  protected $themeManager;
  
  /**
   * Test library data.
   *
   * @var array
   */
  protected $libraryData = [
    'test_1' => [
      'js' => [],
      'css' => [],
    ],
    'test_2' => [
      'js' => [],
      'css' => [],
    ],
    'test_3' => [
      'js' => [],
      'css' => [
        'theme' => [
          'foo.css' => [],
        ],
      ],
    ],
    'test_4' => [
      'js' => [],
      'css' => [
        'theme' => [
          'bar.css' => [],
        ],
      ],
      'deprecated' => 'The "%library_id%" asset library is deprecated in drupal:X.0.0 and is removed from drupal:Y.0.0. Use the test_3 library instead. See https://www.example.com',
    ],
  ];
  protected $activeTheme;
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
    $this->cache = $this->createMock('Drupal\\Core\\Cache\\CacheBackendInterface');
    $this->lock = $this->createMock('Drupal\\Core\\Lock\\LockBackendInterface');
    $this->themeManager = $this->getMockBuilder('Drupal\\Core\\Theme\\ThemeManagerInterface')
      ->disableOriginalConstructor()
      ->getMock();
    $this->libraryDiscoveryParser = $this->getMockBuilder('Drupal\\Core\\Asset\\LibraryDiscoveryParser')
      ->disableOriginalConstructor()
      ->getMock();
  }
  
  /**
   * Tests the resolve cache miss function.
   *
   * @covers ::resolveCacheMiss
   */
  public function testResolveCacheMiss() : void {
    $this->activeTheme = $this->getMockBuilder(ActiveTheme::class)
      ->disableOriginalConstructor()
      ->getMock();
    $this->themeManager
      ->expects($this->exactly(5))
      ->method('getActiveTheme')
      ->willReturn($this->activeTheme);
    $this->activeTheme
      ->expects($this->once())
      ->method('getName')
      ->willReturn('kitten_theme');
    $this->libraryDiscoveryCollector = new LibraryDiscoveryCollector($this->cache, $this->lock, $this->libraryDiscoveryParser, $this->themeManager);
    $this->libraryDiscoveryParser
      ->expects($this->once())
      ->method('buildByExtension')
      ->with('test')
      ->willReturn($this->libraryData);
    $this->assertSame($this->libraryData, $this->libraryDiscoveryCollector
      ->get('test'));
    $this->assertSame($this->libraryData, $this->libraryDiscoveryCollector
      ->get('test'));
  }
  
  /**
   * Tests the destruct method.
   *
   * @covers ::destruct
   */
  public function testDestruct() : void {
    $this->activeTheme = $this->getMockBuilder(ActiveTheme::class)
      ->disableOriginalConstructor()
      ->getMock();
    $this->themeManager
      ->expects($this->exactly(5))
      ->method('getActiveTheme')
      ->willReturn($this->activeTheme);
    $this->activeTheme
      ->expects($this->once())
      ->method('getName')
      ->willReturn('kitten_theme');
    $this->libraryDiscoveryCollector = new LibraryDiscoveryCollector($this->cache, $this->lock, $this->libraryDiscoveryParser, $this->themeManager);
    $this->libraryDiscoveryParser
      ->expects($this->once())
      ->method('buildByExtension')
      ->with('test')
      ->willReturn($this->libraryData);
    $lock_key = 'library_info:kitten_theme:Drupal\\Core\\Cache\\CacheCollector';
    $this->lock
      ->expects($this->once())
      ->method('acquire')
      ->with($lock_key)
      ->willReturn(TRUE);
    $this->cache
      ->expects($this->exactly(2))
      ->method('get')
      ->with('library_info:kitten_theme')
      ->willReturn(FALSE);
    $this->cache
      ->expects($this->once())
      ->method('set')
      ->with('library_info:kitten_theme', [
      'test' => $this->libraryData,
    ], Cache::PERMANENT, [
      'library_info',
    ]);
    $this->lock
      ->expects($this->once())
      ->method('release')
      ->with($lock_key);
    // This should get data and persist the key.
    $this->libraryDiscoveryCollector
      ->get('test');
    $this->libraryDiscoveryCollector
      ->destruct();
  }
  
  /**
   * Tests library with an extend.
   *
   * @covers ::applyLibrariesExtend
   */
  public function testLibrariesExtend() : void {
    $this->activeTheme = $this->getMockBuilder(ActiveTheme::class)
      ->disableOriginalConstructor()
      ->getMock();
    $this->themeManager
      ->expects($this->any())
      ->method('getActiveTheme')
      ->willReturn($this->activeTheme);
    $this->activeTheme
      ->expects($this->once())
      ->method('getName')
      ->willReturn('kitten_theme');
    $this->activeTheme
      ->expects($this->atLeastOnce())
      ->method('getLibrariesExtend')
      ->willReturn([
      'test/test_3' => [
        'kitten_theme/extend',
      ],
    ]);
    $this->libraryDiscoveryParser
      ->expects($this->exactly(2))
      ->method('buildByExtension')
      ->willReturnMap([
      [
        'test',
        $this->libraryData,
      ],
      [
        'kitten_theme',
        [
          'extend' => [
            'css' => [
              'theme' => [
                'baz.css' => [],
              ],
            ],
          ],
        ],
      ],
    ]);
    $library_discovery_collector = new LibraryDiscoveryCollector($this->cache, $this->lock, $this->libraryDiscoveryParser, $this->themeManager);
    $libraries = $library_discovery_collector->get('test');
    $this->assertSame([
      'foo.css',
      'baz.css',
    ], array_keys($libraries['test_3']['css']['theme']));
  }
  
  /**
   * Tests a deprecated library with an extend.
   *
   * @covers ::applyLibrariesExtend
   *
   * @group legacy
   */
  public function testLibrariesExtendDeprecated() : void {
    $this->expectDeprecation('Theme "test" is extending a deprecated library. The "test/test_4" asset library is deprecated in drupal:X.0.0 and is removed from drupal:Y.0.0. Use the test_3 library instead. See https://www.example.com');
    $this->activeTheme = $this->getMockBuilder(ActiveTheme::class)
      ->disableOriginalConstructor()
      ->getMock();
    $this->themeManager
      ->expects($this->any())
      ->method('getActiveTheme')
      ->willReturn($this->activeTheme);
    $this->activeTheme
      ->expects($this->once())
      ->method('getName')
      ->willReturn('kitten_theme');
    $this->activeTheme
      ->expects($this->atLeastOnce())
      ->method('getLibrariesExtend')
      ->willReturn([
      'test/test_4' => [
        'kitten_theme/extend',
      ],
    ]);
    $this->libraryDiscoveryParser
      ->expects($this->exactly(2))
      ->method('buildByExtension')
      ->willReturnMap([
      [
        'test',
        $this->libraryData,
      ],
      [
        'kitten_theme',
        [
          'extend' => [
            'css' => [
              'theme' => [
                'baz.css' => [],
              ],
            ],
          ],
        ],
      ],
    ]);
    $library_discovery_collector = new LibraryDiscoveryCollector($this->cache, $this->lock, $this->libraryDiscoveryParser, $this->themeManager);
    $library_discovery_collector->get('test');
  }

}