class SearchLanguageTest

class SearchLanguageTest extends BrowserTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'language',
        'node',
        'search',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Array of nodes available to search.
     *
     * @var \Drupal\node\NodeInterface[]
     */
    protected $searchableNodes;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->drupalCreateContentType([
            'type' => 'page',
            'name' => 'Basic page',
        ]);
        // Create and log in user.
        $test_user = $this->drupalCreateUser([
            'access content',
            'search content',
            'use advanced search',
            'administer nodes',
            'administer languages',
            'access administration pages',
            'administer site configuration',
        ]);
        $this->drupalLogin($test_user);
        // Add a new language.
        ConfigurableLanguage::createFromLangcode('es')->save();
        // Make the body field translatable. The title is already translatable by
        // definition. The parent class has already created the article and page
        // content types.
        $field_storage = FieldStorageConfig::loadByName('node', 'body');
        $field_storage->setTranslatable(TRUE);
        $field_storage->save();
        // Create a few page nodes with multilingual body values.
        $default_format = filter_default_format();
        $nodes = [
            [
                'title' => 'First node en',
                'type' => 'page',
                'body' => [
                    [
                        'value' => $this->randomMachineName(32),
                        'format' => $default_format,
                    ],
                ],
                'langcode' => 'en',
            ],
            [
                'title' => 'Second node this is the Spanish title',
                'type' => 'page',
                'body' => [
                    [
                        'value' => $this->randomMachineName(32),
                        'format' => $default_format,
                    ],
                ],
                'langcode' => 'es',
            ],
            [
                'title' => 'Third node en',
                'type' => 'page',
                'body' => [
                    [
                        'value' => $this->randomMachineName(32),
                        'format' => $default_format,
                    ],
                ],
                'langcode' => 'en',
            ],
        ];
        $this->searchableNodes = [];
        foreach ($nodes as $setting) {
            $this->searchableNodes[] = $this->drupalCreateNode($setting);
        }
        // Add English translation to the second node.
        $translation = $this->searchableNodes[1]
            ->addTranslation('en', [
            'title' => 'Second node en',
        ]);
        $translation->body->value = $this->randomMachineName(32);
        $this->searchableNodes[1]
            ->save();
        // Add Spanish translation to the third node.
        $translation = $this->searchableNodes[2]
            ->addTranslation('es', [
            'title' => 'Third node es',
        ]);
        $translation->body->value = $this->randomMachineName(32);
        $this->searchableNodes[2]
            ->save();
        // Update the index and then run the shutdown method.
        $plugin = $this->container
            ->get('plugin.manager.search')
            ->createInstance('node_search');
        $plugin->updateIndex();
    }
    public function testLanguages() : void {
        // Add predefined language.
        $edit = [
            'predefined_langcode' => 'fr',
        ];
        $this->drupalGet('admin/config/regional/language/add');
        $this->submitForm($edit, 'Add language');
        $this->assertSession()
            ->pageTextContains('French');
        // Now we should have languages displayed.
        $this->drupalGet('search/node');
        $this->assertSession()
            ->pageTextContains('Languages');
        $this->assertSession()
            ->pageTextContains('English');
        $this->assertSession()
            ->pageTextContains('French');
        // Ensure selecting no language does not make the query different.
        $this->drupalGet('search/node');
        $this->submitForm([], 'edit-submit--2');
        $this->assertSession()
            ->addressEquals(Url::fromRoute('search.view_node_search', [], [
            'query' => [
                'keys' => '',
            ],
        ]));
        // Pick French and ensure it is selected.
        $edit = [
            'language[fr]' => TRUE,
        ];
        $this->drupalGet('search/node');
        $this->submitForm($edit, 'edit-submit--2');
        // Get the redirected URL.
        $url = $this->getUrl();
        $parts = parse_url($url);
        $query_string = isset($parts['query']) ? rawurldecode($parts['query']) : '';
        $this->assertStringContainsString('=language:fr', $query_string, 'Language filter language:fr add to the query string.');
        // Search for keyword node and language filter as Spanish.
        $edit = [
            'keys' => 'node',
            'language[es]' => TRUE,
        ];
        $this->drupalGet('search/node');
        $this->submitForm($edit, 'edit-submit--2');
        // Check for Spanish results.
        $this->assertSession()
            ->linkExists('Second node this is the Spanish title', 0, 'Second node Spanish title found in search results');
        $this->assertSession()
            ->linkExists('Third node es', 0, 'Third node Spanish found in search results');
        // Ensure that results don't contain other language nodes.
        $this->assertSession()
            ->linkNotExists('First node en', 'Search results do not contain first English node');
        $this->assertSession()
            ->linkNotExists('Second node en', 'Search results do not contain second English node');
        $this->assertSession()
            ->linkNotExists('Third node en', 'Search results do not contain third English node');
        // Change the default language and delete English.
        $path = 'admin/config/regional/language';
        $this->drupalGet($path);
        $this->assertSession()
            ->checkboxChecked('edit-site-default-language-en');
        $edit = [
            'site_default_language' => 'fr',
        ];
        $this->drupalGet($path);
        $this->submitForm($edit, 'Save configuration');
        $this->assertSession()
            ->checkboxNotChecked('edit-site-default-language-en');
        $this->drupalGet('admin/config/regional/language/delete/en');
        $this->submitForm([], 'Delete');
    }
    
    /**
     * Test language attribute "lang" for the search results.
     */
    public function testLanguageAttributes() : void {
        $this->drupalGet('search/node');
        $this->submitForm([
            'keys' => 'the Spanish title',
        ], 'Search');
        $node = $this->searchableNodes[1]
            ->getTranslation('es');
        $this->assertSession()
            ->elementExists('xpath', '//div[@class="layout-content"]//ol/li/h3[contains(@lang, "es")]');
        $this->assertSession()
            ->elementTextEquals('xpath', '//div[@class="layout-content"]//ol/li/h3[contains(@lang, "es")]/a', $node->getTitle());
        $this->assertSession()
            ->elementExists('xpath', '//div[@class="layout-content"]//ol/li/p[contains(@lang, "es")]');
        // Visit the search form in Spanish language.
        $this->drupalGet('es/search/node');
        $this->submitForm([
            'keys' => 'First node',
        ], 'Search');
        $this->assertSession()
            ->elementExists('xpath', '//div[@class="layout-content"]//ol/li/h3[contains(@lang, "en")]');
        $node = $this->searchableNodes[0]
            ->getTranslation('en');
        $this->assertSession()
            ->elementTextEquals('xpath', '//div[@class="layout-content"]//ol/li/h3[contains(@lang, "en")]/a', $node->getTitle());
        $this->assertSession()
            ->elementExists('xpath', '//div[@class="layout-content"]//ol/li/p[contains(@lang, "en")]');
    }

}