class ViewsHandlerManagerTest

class ViewsHandlerManagerTest extends UnitTestCase {
    
    /**
     * @var \Drupal\views\Plugin\ViewsHandlerManager
     */
    protected $handlerManager;
    
    /**
     * @var \Drupal\Core\Extension\ModuleHandlerInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $moduleHandler;
    
    /**
     * The mocked views data.
     *
     * @var \Drupal\views\ViewsData|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $viewsData;
    
    /**
     * The mocked factory.
     *
     * @var \Drupal\Component\Plugin\Factory\FactoryInterface|\PHPUnit\Framework\MockObject\MockObject
     */
    protected $factory;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->viewsData = $this->getMockBuilder('Drupal\\views\\ViewsData')
            ->disableOriginalConstructor()
            ->getMock();
        $cache_backend = $this->createMock('Drupal\\Core\\Cache\\CacheBackendInterface');
        $this->moduleHandler = $this->createMock('Drupal\\Core\\Extension\\ModuleHandlerInterface');
        $this->handlerManager = new ViewsHandlerManager('test', new \ArrayObject([]), $this->viewsData, $cache_backend, $this->moduleHandler);
    }
    
    /**
     * Setups of the plugin factory.
     */
    protected function setupMockedFactory() {
        $this->factory = $this->createMock('Drupal\\Component\\Plugin\\Factory\\FactoryInterface');
        $reflection = new \ReflectionClass($this->handlerManager);
        $property = $reflection->getProperty('factory');
        $property->setAccessible(TRUE);
        $property->setValue($this->handlerManager, $this->factory);
    }
    
    /**
     * Tests that hook_views_plugins_TYPE_alter() is invoked for a handler type.
     *
     * @covers ::__construct
     * @covers ::getDefinitions
     */
    public function testAlterHookInvocation() {
        $this->moduleHandler
            ->expects($this->once())
            ->method('alter')
            ->with('views_plugins_test', []);
        $this->handlerManager
            ->getDefinitions();
    }
    
    /**
     * Tests getHandler() and its base information propagation.
     */
    public function testGetHandlerBaseInformationPropagation() {
        $this->setupMockedFactory();
        $item = [];
        $item['table'] = 'test_table';
        $item['field'] = 'test_field';
        $views_data = [];
        $views_data['test_field']['test']['id'] = 'test_id';
        $views_data['test_field']['test']['more_information'] = 'test_id';
        $views_data['test_field']['group'] = 'test_group';
        $views_data['test_field']['title'] = 'test title';
        $views_data['test_field']['real field'] = 'test real field';
        $views_data['test_field']['real table'] = 'test real table';
        $views_data['test_field']['entity field'] = 'test entity field';
        $this->viewsData
            ->expects($this->once())
            ->method('get')
            ->with('test_table')
            ->willReturn($views_data);
        $expected_definition = [
            'id' => 'test_id',
            'more_information' => 'test_id',
            'group' => 'test_group',
            'title' => 'test title',
            'real field' => 'test real field',
            'real table' => 'test real table',
            'entity field' => 'test entity field',
        ];
        $plugin = $this->createMock('Drupal\\views\\Plugin\\views\\ViewsHandlerInterface');
        $this->factory
            ->expects($this->once())
            ->method('createInstance')
            ->with('test_id', $expected_definition)
            ->willReturn($plugin);
        $result = $this->handlerManager
            ->getHandler($item);
        $this->assertSame($plugin, $result);
    }
    
    /**
     * Tests getHandler() with an override.
     */
    public function testGetHandlerOverride() {
        $this->setupMockedFactory();
        $item = [];
        $item['table'] = 'test_table';
        $item['field'] = 'test_field';
        $views_data = [];
        $views_data['test_field']['test']['id'] = 'test_id';
        $this->viewsData
            ->expects($this->once())
            ->method('get')
            ->with('test_table')
            ->willReturn($views_data);
        $plugin = $this->createMock('Drupal\\views\\Plugin\\views\\ViewsHandlerInterface');
        $this->factory
            ->expects($this->once())
            ->method('createInstance')
            ->with('test_override')
            ->willReturn($plugin);
        $result = $this->handlerManager
            ->getHandler($item, 'test_override');
        $this->assertSame($plugin, $result);
    }
    
    /**
     * Tests getHandler() without an override.
     */
    public function testGetHandlerNoOverride() {
        $this->setupMockedFactory();
        $item = [];
        $item['table'] = 'test_table';
        $item['field'] = 'test_field';
        $views_data = [];
        $views_data['test_field']['test']['id'] = 'test_id';
        $this->viewsData
            ->expects($this->once())
            ->method('get')
            ->with('test_table')
            ->willReturn($views_data);
        $plugin = $this->createMock('Drupal\\views\\Plugin\\views\\ViewsHandlerInterface');
        $this->factory
            ->expects($this->once())
            ->method('createInstance')
            ->with('test_id')
            ->willReturn($plugin);
        $result = $this->handlerManager
            ->getHandler($item);
        $this->assertSame($plugin, $result);
    }

}