class ForumNodeBreadcrumbBuilderTest

class ForumNodeBreadcrumbBuilderTest extends UnitTestCase {
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $cache_contexts_manager = $this->getMockBuilder('Drupal\\Core\\Cache\\Context\\CacheContextsManager')
            ->disableOriginalConstructor()
            ->getMock();
        $cache_contexts_manager->method('assertValidTokens')
            ->willReturn(TRUE);
        $container = new Container();
        $container->set('cache_contexts_manager', $cache_contexts_manager);
        \Drupal::setContainer($container);
    }
    
    /**
     * Tests ForumNodeBreadcrumbBuilder::applies().
     *
     * @param bool $expected
     *   ForumNodeBreadcrumbBuilder::applies() expected result.
     * @param string|null $route_name
     *   (optional) A route name.
     * @param array $parameter_map
     *   (optional) An array of parameter names and values.
     *
     * @dataProvider providerTestApplies
     * @covers ::applies
     */
    public function testApplies($expected, $route_name = NULL, $parameter_map = []) {
        // Make some test doubles.
        $entity_manager = $this->createMock('Drupal\\Core\\Entity\\EntityManagerInterface');
        $config_factory = $this->getConfigFactoryStub([]);
        $forum_manager = $this->createMock('Drupal\\forum\\ForumManagerInterface');
        $forum_manager->expects($this->any())
            ->method('checkNodeType')
            ->will($this->returnValue(TRUE));
        $translation_manager = $this->createMock('Drupal\\Core\\StringTranslation\\TranslationInterface');
        // Make an object to test.
        $builder = $this->getMockBuilder('Drupal\\forum\\Breadcrumb\\ForumNodeBreadcrumbBuilder')
            ->setConstructorArgs([
            $entity_manager,
            $config_factory,
            $forum_manager,
            $translation_manager,
        ])
            ->setMethods(NULL)
            ->getMock();
        $route_match = $this->createMock('Drupal\\Core\\Routing\\RouteMatchInterface');
        $route_match->expects($this->once())
            ->method('getRouteName')
            ->will($this->returnValue($route_name));
        $route_match->expects($this->any())
            ->method('getParameter')
            ->will($this->returnValueMap($parameter_map));
        $this->assertEquals($expected, $builder->applies($route_match));
    }
    
    /**
     * Provides test data for testApplies().
     *
     * Note that this test is incomplete, because we can't mock NodeInterface.
     *
     * @return array
     *   Array of datasets for testApplies(). Structured as such:
     *   - ForumNodeBreadcrumbBuilder::applies() expected result.
     *   - ForumNodeBreadcrumbBuilder::applies() $attributes input array.
     */
    public function providerTestApplies() {
        // Send a Node mock, because NodeInterface cannot be mocked.
        $mock_node = $this->getMockBuilder('Drupal\\node\\Entity\\Node')
            ->disableOriginalConstructor()
            ->getMock();
        return [
            [
                FALSE,
            ],
            [
                FALSE,
                'NOT.entity.node.canonical',
            ],
            [
                FALSE,
                'entity.node.canonical',
            ],
            [
                FALSE,
                'entity.node.canonical',
                [
                    [
                        'node',
                        NULL,
                    ],
                ],
            ],
            [
                TRUE,
                'entity.node.canonical',
                [
                    [
                        'node',
                        $mock_node,
                    ],
                ],
            ],
        ];
    }
    
    /**
     * Tests ForumNodeBreadcrumbBuilder::build().
     *
     * @see \Drupal\forum\ForumNodeBreadcrumbBuilder::build()
     * @covers ::build
     */
    public function testBuild() {
        // Build all our dependencies, backwards.
        $translation_manager = $this->getMockBuilder('Drupal\\Core\\StringTranslation\\TranslationInterface')
            ->disableOriginalConstructor()
            ->getMock();
        $prophecy = $this->prophesize('Drupal\\taxonomy\\Entity\\Term');
        $prophecy->label()
            ->willReturn('Something');
        $prophecy->id()
            ->willReturn(1);
        $prophecy->getCacheTags()
            ->willReturn([
            'taxonomy_term:1',
        ]);
        $prophecy->getCacheContexts()
            ->willReturn([]);
        $prophecy->getCacheMaxAge()
            ->willReturn(Cache::PERMANENT);
        $term1 = $prophecy->reveal();
        $prophecy = $this->prophesize('Drupal\\taxonomy\\Entity\\Term');
        $prophecy->label()
            ->willReturn('Something else');
        $prophecy->id()
            ->willReturn(2);
        $prophecy->getCacheTags()
            ->willReturn([
            'taxonomy_term:2',
        ]);
        $prophecy->getCacheContexts()
            ->willReturn([]);
        $prophecy->getCacheMaxAge()
            ->willReturn(Cache::PERMANENT);
        $term2 = $prophecy->reveal();
        $forum_manager = $this->getMockBuilder('Drupal\\forum\\ForumManagerInterface')
            ->disableOriginalConstructor()
            ->getMock();
        $term_storage = $this->getMockBuilder(TermStorageInterface::class)
            ->getMock();
        $term_storage->expects($this->at(0))
            ->method('loadAllParents')
            ->will($this->returnValue([
            $term1,
        ]));
        $term_storage->expects($this->at(1))
            ->method('loadAllParents')
            ->will($this->returnValue([
            $term1,
            $term2,
        ]));
        $prophecy = $this->prophesize('Drupal\\taxonomy\\VocabularyInterface');
        $prophecy->label()
            ->willReturn('Forums');
        $prophecy->id()
            ->willReturn(5);
        $prophecy->getCacheTags()
            ->willReturn([
            'taxonomy_vocabulary:5',
        ]);
        $prophecy->getCacheContexts()
            ->willReturn([]);
        $prophecy->getCacheMaxAge()
            ->willReturn(Cache::PERMANENT);
        $vocab_storage = $this->createMock('Drupal\\Core\\Entity\\EntityStorageInterface');
        $vocab_storage->expects($this->any())
            ->method('load')
            ->will($this->returnValueMap([
            [
                'forums',
                $prophecy->reveal(),
            ],
        ]));
        $entity_manager = $this->getMockBuilder('Drupal\\Core\\Entity\\EntityManagerInterface')
            ->disableOriginalConstructor()
            ->getMock();
        $entity_manager->expects($this->any())
            ->method('getStorage')
            ->will($this->returnValueMap([
            [
                'taxonomy_vocabulary',
                $vocab_storage,
            ],
            [
                'taxonomy_term',
                $term_storage,
            ],
        ]));
        $config_factory = $this->getConfigFactoryStub([
            'forum.settings' => [
                'vocabulary' => 'forums',
            ],
        ]);
        // Build a breadcrumb builder to test.
        $breadcrumb_builder = new ForumNodeBreadcrumbBuilder($entity_manager, $config_factory, $forum_manager, $translation_manager);
        // Add a translation manager for t().
        $translation_manager = $this->getStringTranslationStub();
        $breadcrumb_builder->setStringTranslation($translation_manager);
        // The forum node we need a breadcrumb back from.
        $forum_node = $this->getMockBuilder('Drupal\\node\\Entity\\Node')
            ->disableOriginalConstructor()
            ->getMock();
        // Our data set.
        $route_match = $this->createMock('Drupal\\Core\\Routing\\RouteMatchInterface');
        $route_match->expects($this->exactly(2))
            ->method('getParameter')
            ->with('node')
            ->will($this->returnValue($forum_node));
        // First test.
        $expected1 = [
            Link::createFromRoute('Home', '<front>'),
            Link::createFromRoute('Forums', 'forum.index'),
            Link::createFromRoute('Something', 'forum.page', [
                'taxonomy_term' => 1,
            ]),
        ];
        $breadcrumb = $breadcrumb_builder->build($route_match);
        $this->assertEquals($expected1, $breadcrumb->getLinks());
        $this->assertEquals([
            'route',
        ], $breadcrumb->getCacheContexts());
        $this->assertEquals([
            'taxonomy_term:1',
            'taxonomy_vocabulary:5',
        ], $breadcrumb->getCacheTags());
        $this->assertEquals(Cache::PERMANENT, $breadcrumb->getCacheMaxAge());
        // Second test.
        $expected2 = [
            Link::createFromRoute('Home', '<front>'),
            Link::createFromRoute('Forums', 'forum.index'),
            Link::createFromRoute('Something else', 'forum.page', [
                'taxonomy_term' => 2,
            ]),
            Link::createFromRoute('Something', 'forum.page', [
                'taxonomy_term' => 1,
            ]),
        ];
        $breadcrumb = $breadcrumb_builder->build($route_match);
        $this->assertEquals($expected2, $breadcrumb->getLinks());
        $this->assertEquals([
            'route',
        ], $breadcrumb->getCacheContexts());
        $this->assertEquals([
            'taxonomy_term:1',
            'taxonomy_term:2',
            'taxonomy_vocabulary:5',
        ], $breadcrumb->getCacheTags());
        $this->assertEquals(Cache::PERMANENT, $breadcrumb->getCacheMaxAge());
    }

}