class RowEntityRenderersTest

class RowEntityRenderersTest extends ViewsKernelTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'field',
        'filter',
        'text',
        'node',
        'user',
        'language',
        'views_test_language',
    ];
    
    /**
     * Views used by this test.
     *
     * @var array
     */
    public static $testViews = [
        'test_entity_row_renderers',
        'test_entity_row_renderers_revisions_base',
    ];
    
    /**
     * An array of added languages.
     *
     * @var array
     */
    protected $langcodes;
    
    /**
     * An array of titles for each node per language.
     *
     * @var array
     */
    protected $expected;
    
    /**
     * The author of the test content.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $testAuthor;
    
    /**
     * An array of IDs of the test content.
     *
     * @var array[]
     */
    protected $testIds;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE) {
        parent::setUp();
        $this->installEntitySchema('node');
        $this->installEntitySchema('user');
        $this->installSchema('node', [
            'node_access',
        ]);
        $this->installConfig([
            'node',
            'language',
        ]);
        // The entity.node.canonical route must exist when nodes are rendered.
        $this->container
            ->get('router.builder')
            ->rebuild();
        $this->langcodes = [
            \Drupal::languageManager()->getDefaultLanguage()
                ->getId(),
        ];
        for ($i = 0; $i < 2; $i++) {
            $langcode = 'l' . $i;
            $this->langcodes[] = $langcode;
            ConfigurableLanguage::createFromLangcode($langcode)->save();
        }
        $this->testAuthor = User::create([
            'name' => 'foo',
        ]);
        $this->testAuthor
            ->save();
        // Make sure we do not try to render non-existing user data.
        $node_type = NodeType::create([
            'type' => 'test',
        ]);
        $node_type->setDisplaySubmitted(FALSE);
        $node_type->save();
        $this->values = [];
        $this->ids = [];
        $controller = \Drupal::entityTypeManager()->getStorage('node');
        $langcode_index = 0;
        for ($i = 0; $i < count($this->langcodes); $i++) {
            // Create a node with a different default language each time.
            $default_langcode = $this->langcodes[$langcode_index++];
            $node = $controller->create([
                'type' => 'test',
                'uid' => $this->testAuthor
                    ->id(),
                'langcode' => $default_langcode,
            ]);
            // Ensure the default language is processed first.
            $langcodes = array_merge([
                $default_langcode,
            ], array_diff($this->langcodes, [
                $default_langcode,
            ]));
            foreach ($langcodes as $langcode) {
                // Ensure we have a predictable result order.
                $this->values[$i][$langcode] = $i . '-' . $langcode . '-' . $this->randomMachineName();
                if ($langcode != $default_langcode) {
                    $node->addTranslation($langcode, [
                        'title' => $this->values[$i][$langcode],
                    ]);
                }
                else {
                    $node->setTitle($this->values[$i][$langcode]);
                }
                $node->save();
                $this->ids[] = [
                    'nid' => $node->id(),
                    'uid' => $this->testAuthor
                        ->id(),
                ];
            }
        }
    }
    
    /**
     * Tests the entity row renderers.
     */
    public function testEntityRenderers() {
        $this->checkLanguageRenderers('page_1', $this->values);
    }
    
    /**
     * Tests the field row renderers.
     */
    public function testFieldRenderers() {
        $this->checkLanguageRenderers('page_2', $this->values);
    }
    
    /**
     * Tests the row renderer with a revision base table.
     */
    public function testRevisionBaseTable() {
        $view = Views::getView('test_entity_row_renderers_revisions_base');
        $view->execute();
        $this->assertIdenticalResultset($view, $this->ids, [
            'nid' => 'nid',
            'uid' => 'uid',
        ]);
    }
    
    /**
     * Checks that the language renderer configurations work as expected.
     *
     * @param string $display
     *   Name of display to test with.
     * @param array $values
     *   An array of node information which are each an array of node titles
     *   associated with language keys appropriate for the translation of that
     *   node.
     */
    protected function checkLanguageRenderers($display, $values) {
        $expected = [
            $values[0]['en'],
            $values[0]['en'],
            $values[0]['en'],
            $values[1]['en'],
            $values[1]['en'],
            $values[1]['en'],
            $values[2]['en'],
            $values[2]['en'],
            $values[2]['en'],
        ];
        $this->assertTranslations($display, '***LANGUAGE_language_content***', $expected, 'The current language renderer behaves as expected.');
        $expected = [
            $values[0]['en'],
            $values[0]['en'],
            $values[0]['en'],
            $values[1]['l0'],
            $values[1]['l0'],
            $values[1]['l0'],
            $values[2]['l1'],
            $values[2]['l1'],
            $values[2]['l1'],
        ];
        $this->assertTranslations($display, '***LANGUAGE_entity_default***', $expected, 'The default language renderer behaves as expected.');
        $expected = [
            $values[0]['en'],
            $values[0]['l0'],
            $values[0]['l1'],
            $values[1]['en'],
            $values[1]['l0'],
            $values[1]['l1'],
            $values[2]['en'],
            $values[2]['l0'],
            $values[2]['l1'],
        ];
        $this->assertTranslations($display, '***LANGUAGE_entity_translation***', $expected, 'The translation language renderer behaves as expected.');
        $expected = [
            $values[0][$this->langcodes[0]],
            $values[0][$this->langcodes[0]],
            $values[0][$this->langcodes[0]],
            $values[1][$this->langcodes[0]],
            $values[1][$this->langcodes[0]],
            $values[1][$this->langcodes[0]],
            $values[2][$this->langcodes[0]],
            $values[2][$this->langcodes[0]],
            $values[2][$this->langcodes[0]],
        ];
        $this->assertTranslations($display, '***LANGUAGE_site_default***', $expected, 'The site default language renderer behaves as expected.');
        $expected = [
            $values[0]['l0'],
            $values[0]['l0'],
            $values[0]['l0'],
            $values[1]['l0'],
            $values[1]['l0'],
            $values[1]['l0'],
            $values[2]['l0'],
            $values[2]['l0'],
            $values[2]['l0'],
        ];
        $this->assertTranslations($display, 'l0', $expected, 'The language specific renderer behaves as expected.');
    }
    
    /**
     * Checks that the view results match the expected values.
     *
     * @param string $display
     *   Name of display to test with.
     * @param string $renderer_id
     *   The id of the renderer to be tested.
     * @param array $expected
     *   An array of expected title translation values, one for each result row.
     * @param string $message
     *   (optional) A message to display with the assertion.
     * @param string $group
     *   (optional) The group this message is in.
     *
     * @return bool
     *   TRUE if the assertion succeeded, FALSE otherwise.
     */
    protected function assertTranslations($display, $renderer_id, array $expected, $message = '', $group = 'Other') {
        $view = Views::getView('test_entity_row_renderers');
        $view->storage
            ->invalidateCaches();
        $view->setDisplay($display);
        $view->getDisplay()
            ->setOption('rendering_language', $renderer_id);
        $view->preview();
        $result = FALSE;
        foreach ($expected as $index => $expected_output) {
            if (!empty($view->result[$index])) {
                $build = $view->rowPlugin
                    ->render($view->result[$index]);
                $output = \Drupal::service('renderer')->renderRoot($build);
                $result = strpos($output, $expected_output) !== FALSE;
                if (!$result) {
                    break;
                }
            }
            else {
                $result = FALSE;
                break;
            }
        }
        return $this->assertTrue($result, $message, $group);
    }

}