class TaxonomyIndexTidUiTest

class TaxonomyIndexTidUiTest extends UITestBase {
    use EntityReferenceTestTrait;
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_filter_taxonomy_index_tid',
        'test_taxonomy_term_name',
        'test_taxonomy_exposed_grouped_filter',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'node',
        'taxonomy',
        'views',
        'views_ui',
        'taxonomy_test_views',
    ];
    
    /**
     * A nested array of \Drupal\taxonomy\TermInterface objects.
     *
     * @var \Drupal\taxonomy\TermInterface[][]
     */
    protected $terms = [];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE, $modules = []) : void {
        parent::setUp($import_test_views, $modules);
        $this->adminUser = $this->drupalCreateUser([
            'administer taxonomy',
            'administer views',
        ]);
        $this->drupalLogin($this->adminUser);
        Vocabulary::create([
            'vid' => 'tags',
            'name' => 'Tags',
        ])->save();
        // Setup a hierarchy which looks like this:
        // term 0.0
        // term 1.0
        // - term 1.1
        // term 2.0
        // - term 2.1
        // - term 2.2
        for ($i = 0; $i < 3; $i++) {
            for ($j = 0; $j <= $i; $j++) {
                $this->terms[$i][$j] = $term = Term::create([
                    'vid' => 'tags',
                    'name' => "Term {$i}.{$j}",
                    'parent' => isset($this->terms[$i][0]) ? $this->terms[$i][0]
                        ->id() : 0,
                ]);
                $term->save();
            }
        }
        ViewTestData::createTestViews(static::class, [
            'taxonomy_test_views',
        ]);
        Vocabulary::create([
            'vid' => 'empty_vocabulary',
            'name' => 'Empty Vocabulary',
        ])->save();
    }
    
    /**
     * Tests the filter UI.
     */
    public function testFilterUI() {
        $this->drupalGet('admin/structure/views/nojs/handler/test_filter_taxonomy_index_tid/default/filter/tid');
        $result = $this->assertSession()
            ->selectExists('edit-options-value')
            ->findAll('css', 'option');
        // Ensure that the expected hierarchy is available in the UI.
        $counter = 0;
        for ($i = 0; $i < 3; $i++) {
            for ($j = 0; $j <= $i; $j++) {
                $option = $result[$counter++];
                $prefix = $this->terms[$i][$j]->parent->target_id ? '-' : '';
                $tid = $option->getAttribute('value');
                $this->assertEquals($prefix . $this->terms[$i][$j]
                    ->getName(), $option->getText());
                $this->assertEquals($this->terms[$i][$j]
                    ->id(), $tid);
            }
        }
        // Ensure the autocomplete input element appears when using the 'textfield'
        // type.
        $view = View::load('test_filter_taxonomy_index_tid');
        $display =& $view->getDisplay('default');
        $display['display_options']['filters']['tid']['type'] = 'textfield';
        $view->save();
        $this->drupalGet('admin/structure/views/nojs/handler/test_filter_taxonomy_index_tid/default/filter/tid');
        $this->assertSession()
            ->fieldExists('edit-options-value');
        // Tests \Drupal\taxonomy\Plugin\views\filter\TaxonomyIndexTid::calculateDependencies().
        $expected = [
            'config' => [
                'taxonomy.vocabulary.tags',
            ],
            'content' => [
                'taxonomy_term:tags:' . Term::load(2)->uuid(),
            ],
            'module' => [
                'node',
                'taxonomy',
                'user',
            ],
        ];
        $this->assertSame($expected, $view->calculateDependencies()
            ->getDependencies());
    }
    
    /**
     * Tests exposed taxonomy filters.
     */
    public function testExposedFilter() {
        $node_type = $this->drupalCreateContentType([
            'type' => 'page',
        ]);
        // Create the tag field itself.
        $field_name = 'taxonomy_tags';
        $this->createEntityReferenceField('node', $node_type->id(), $field_name, NULL, 'taxonomy_term');
        // Create 4 nodes: 1 without a term, 2 with the same term, and 1 with a
        // different term.
        $node1 = $this->drupalCreateNode();
        $node2 = $this->drupalCreateNode([
            $field_name => [
                [
                    'target_id' => $this->terms[1][0]
                        ->id(),
                ],
            ],
        ]);
        $node3 = $this->drupalCreateNode([
            $field_name => [
                [
                    'target_id' => $this->terms[1][0]
                        ->id(),
                ],
            ],
        ]);
        $node4 = $this->drupalCreateNode([
            $field_name => [
                [
                    'target_id' => $this->terms[2][0]
                        ->id(),
                ],
            ],
        ]);
        // Only the nodes with the selected term should be shown.
        $this->drupalGet('test-filter-taxonomy-index-tid');
        $this->assertSession()
            ->pageTextNotContains($node1->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node1->toUrl()
            ->toString());
        $xpath_node2_link = $this->assertSession()
            ->buildXPathQuery('//div[@class="views-row"]//a[@href=:url and text()=:label]', [
            ':url' => $node2->toUrl()
                ->toString(),
            ':label' => $node2->label(),
        ]);
        $this->assertSession()
            ->elementsCount('xpath', $xpath_node2_link, 1);
        $xpath_node3_link = $this->assertSession()
            ->buildXPathQuery('//div[@class="views-row"]//a[@href=:url and text()=:label]', [
            ':url' => $node3->toUrl()
                ->toString(),
            ':label' => $node3->label(),
        ]);
        $this->assertSession()
            ->elementsCount('xpath', $xpath_node3_link, 1);
        $this->assertSession()
            ->pageTextNotContains($node4->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node4->toUrl()
            ->toString());
        // Expose the filter.
        $this->drupalGet('admin/structure/views/nojs/handler/test_filter_taxonomy_index_tid/default/filter/tid');
        $this->submitForm([], 'Expose filter');
        // Set the operator to 'empty' and remove the default term ID.
        $this->submitForm([
            'options[operator]' => 'empty',
            'options[value][]' => [],
        ], 'Apply');
        // Save the view.
        $this->submitForm([], 'Save');
        // After switching to 'empty' operator, the node without a term should be
        // shown.
        $this->drupalGet('test-filter-taxonomy-index-tid');
        $xpath_node1_link = $this->assertSession()
            ->buildXPathQuery('//div[@class="views-row"]//a[@href=:url and text()=:label]', [
            ':url' => $node1->toUrl()
                ->toString(),
            ':label' => $node1->label(),
        ]);
        $this->assertSession()
            ->elementsCount('xpath', $xpath_node1_link, 1);
        $this->assertSession()
            ->pageTextNotContains($node2->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node2->toUrl()
            ->toString());
        $this->assertSession()
            ->pageTextNotContains($node3->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node3->toUrl()
            ->toString());
        $this->assertSession()
            ->pageTextNotContains($node4->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node4->toUrl()
            ->toString());
        // Set the operator to 'not empty'.
        $this->drupalGet('admin/structure/views/nojs/handler/test_filter_taxonomy_index_tid/default/filter/tid');
        $this->submitForm([
            'options[operator]' => 'not empty',
        ], 'Apply');
        // Save the view.
        $this->submitForm([], 'Save');
        // After switching to 'not empty' operator, all nodes with terms should be
        // shown.
        $this->drupalGet('test-filter-taxonomy-index-tid');
        $this->assertSession()
            ->pageTextNotContains($node1->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node1->toUrl()
            ->toString());
        $xpath_node2_link = $this->assertSession()
            ->buildXPathQuery('//div[@class="views-row"]//a[@href=:url and text()=:label]', [
            ':url' => $node2->toUrl()
                ->toString(),
            ':label' => $node2->label(),
        ]);
        $this->assertSession()
            ->elementsCount('xpath', $xpath_node2_link, 1);
        $xpath_node3_link = $this->assertSession()
            ->buildXPathQuery('//div[@class="views-row"]//a[@href=:url and text()=:label]', [
            ':url' => $node3->toUrl()
                ->toString(),
            ':label' => $node3->label(),
        ]);
        $this->assertSession()
            ->elementsCount('xpath', $xpath_node3_link, 1);
        $xpath_node4_link = $this->assertSession()
            ->buildXPathQuery('//div[@class="views-row"]//a[@href=:url and text()=:label]', [
            ':url' => $node4->toUrl()
                ->toString(),
            ':label' => $node4->label(),
        ]);
        $this->assertSession()
            ->elementsCount('xpath', $xpath_node4_link, 1);
        // Select 'Term ID' as the field to be displayed.
        $edit = [
            'name[taxonomy_term_field_data.tid]' => TRUE,
        ];
        $this->drupalGet('admin/structure/views/nojs/add-handler/test_taxonomy_term_name/default/field');
        $this->submitForm($edit, 'Add and configure fields');
        // Select 'Term' and 'Vocabulary' as filters.
        $edit = [
            'name[taxonomy_term_field_data.tid]' => TRUE,
            'name[taxonomy_term_field_data.vid]' => TRUE,
        ];
        $this->drupalGet('admin/structure/views/nojs/add-handler/test_taxonomy_term_name/default/filter');
        $this->submitForm($edit, 'Add and configure filter criteria');
        // Select 'Empty Vocabulary' and 'Autocomplete' from the list of options.
        $this->drupalGet('admin/structure/views/nojs/handler-extra/test_taxonomy_term_name/default/filter/tid');
        $this->submitForm([], 'Apply and continue');
        // Expose the filter.
        $edit = [
            'options[expose_button][checkbox][checkbox]' => TRUE,
        ];
        $this->drupalGet('admin/structure/views/nojs/handler/test_taxonomy_term_name/default/filter/tid');
        $this->submitForm($edit, 'Expose filter');
        $this->drupalGet('admin/structure/views/nojs/handler/test_taxonomy_term_name/default/filter/tid');
        $this->submitForm($edit, 'Apply');
        // Filter 'Taxonomy terms' belonging to 'Empty Vocabulary'.
        $edit = [
            'options[value][empty_vocabulary]' => TRUE,
        ];
        $this->drupalGet('admin/structure/views/nojs/handler/test_taxonomy_term_name/default/filter/vid');
        $this->submitForm($edit, 'Apply');
        $this->drupalGet('admin/structure/views/view/test_taxonomy_term_name/edit/default');
        $this->submitForm([], 'Save');
        $this->submitForm([], 'Update preview');
        $this->assertSession()
            ->pageTextNotContains($node1->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node1->toUrl()
            ->toString());
        $this->assertSession()
            ->pageTextNotContains($node2->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node2->toUrl()
            ->toString());
        $this->assertSession()
            ->pageTextNotContains($node3->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node3->toUrl()
            ->toString());
        $this->assertSession()
            ->pageTextNotContains($node4->getTitle());
        $this->assertSession()
            ->linkByHrefNotExists($node4->toUrl()
            ->toString());
        $this->assertSession()
            ->elementNotExists('xpath', "//div[@class='views-row']");
    }
    
    /**
     * Tests exposed grouped taxonomy filters.
     */
    public function testExposedGroupedFilter() {
        // Create a content type with a taxonomy field.
        $this->drupalCreateContentType([
            'type' => 'article',
        ]);
        $field_name = 'field_views_testing_tags';
        $this->createEntityReferenceField('node', 'article', $field_name, NULL, 'taxonomy_term');
        $nodes = [];
        for ($i = 0; $i < 3; $i++) {
            $node = [];
            $node['type'] = 'article';
            $node['field_views_testing_tags'][0]['target_id'] = $this->terms[$i][0]
                ->id();
            $nodes[] = $this->drupalCreateNode($node);
        }
        $this->drupalGet('/admin/structure/views/nojs/handler/test_taxonomy_exposed_grouped_filter/page_1/filter/field_views_testing_tags_target_id');
        $edit = [
            'options[group_info][group_items][1][value][]' => [
                $this->terms[0][0]
                    ->id(),
                $this->terms[1][0]
                    ->id(),
            ],
            'options[group_info][group_items][2][value][]' => [
                $this->terms[1][0]
                    ->id(),
                $this->terms[2][0]
                    ->id(),
            ],
            'options[group_info][group_items][3][value][]' => [
                $this->terms[2][0]
                    ->id(),
                $this->terms[0][0]
                    ->id(),
            ],
        ];
        $this->submitForm($edit, 'Apply');
        $this->submitForm([], 'Save');
        // Visit the view's page url and validate the results.
        $this->drupalGet('/test-taxonomy-exposed-grouped-filter');
        $this->submitForm([
            'field_views_testing_tags_target_id' => 1,
        ], 'Apply');
        $this->assertSession()
            ->pageTextContains($nodes[0]->getTitle());
        $this->assertSession()
            ->pageTextContains($nodes[1]->getTitle());
        $this->assertSession()
            ->pageTextNotContains($nodes[2]->getTitle());
        $this->submitForm([
            'field_views_testing_tags_target_id' => 2,
        ], 'Apply');
        $this->assertSession()
            ->pageTextContains($nodes[1]->getTitle());
        $this->assertSession()
            ->pageTextContains($nodes[2]->getTitle());
        $this->assertSession()
            ->pageTextNotContains($nodes[0]->getTitle());
        $this->submitForm([
            'field_views_testing_tags_target_id' => 3,
        ], 'Apply');
        $this->assertSession()
            ->pageTextContains($nodes[0]->getTitle());
        $this->assertSession()
            ->pageTextContains($nodes[2]->getTitle());
        $this->assertSession()
            ->pageTextNotContains($nodes[1]->getTitle());
    }
    
    /**
     * Tests that an exposed taxonomy filter doesn't show unpublished terms.
     */
    public function testExposedUnpublishedFilterOptions() {
        $this->terms[1][0]
            ->setUnpublished()
            ->save();
        // Expose the filter.
        $this->drupalGet('admin/structure/views/nojs/handler/test_filter_taxonomy_index_tid/default/filter/tid');
        $this->submitForm([], 'Expose filter');
        $edit = [
            'options[expose_button][checkbox][checkbox]' => TRUE,
        ];
        $this->submitForm($edit, 'Apply');
        $this->submitForm([], 'Save');
        // Make sure the unpublished term is shown to the admin user.
        $this->drupalGet('test-filter-taxonomy-index-tid');
        $this->assertNotEmpty($this->cssSelect('option[value="' . $this->terms[0][0]
            ->id() . '"]'));
        $this->assertNotEmpty($this->cssSelect('option[value="' . $this->terms[1][0]
            ->id() . '"]'));
        $this->drupalLogout();
        $this->drupalGet('test-filter-taxonomy-index-tid');
        // Make sure the unpublished term isn't shown to the anonymous user.
        $this->assertNotEmpty($this->cssSelect('option[value="' . $this->terms[0][0]
            ->id() . '"]'));
        $this->assertEmpty($this->cssSelect('option[value="' . $this->terms[1][0]
            ->id() . '"]'));
        // Tests that the term also isn't shown when not showing hierarchy.
        $this->drupalLogin($this->adminUser);
        $edit = [
            'options[hierarchy]' => FALSE,
        ];
        $this->drupalGet('admin/structure/views/nojs/handler-extra/test_filter_taxonomy_index_tid/default/filter/tid');
        $this->submitForm($edit, 'Apply');
        $this->submitForm([], 'Save');
        $this->drupalGet('test-filter-taxonomy-index-tid');
        $this->assertNotEmpty($this->cssSelect('option[value="' . $this->terms[0][0]
            ->id() . '"]'));
        $this->assertNotEmpty($this->cssSelect('option[value="' . $this->terms[1][0]
            ->id() . '"]'));
        $this->drupalLogout();
        $this->drupalGet('test-filter-taxonomy-index-tid');
        // Make sure the unpublished term isn't shown to the anonymous user.
        $this->assertNotEmpty($this->cssSelect('option[value="' . $this->terms[0][0]
            ->id() . '"]'));
        $this->assertEmpty($this->cssSelect('option[value="' . $this->terms[1][0]
            ->id() . '"]'));
    }

}