class NodeAccessLanguageFallbackTest

class NodeAccessLanguageFallbackTest extends NodeTestBase {
    
    /**
     * Enable language and a non-language-aware node access module.
     *
     * @var array
     */
    protected static $modules = [
        'language',
        'node_access_test',
        'content_translation',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        // After enabling a node access module, the {node_access} table has to be
        // rebuilt.
        node_access_rebuild();
        // Add Hungarian, Catalan, and Afrikaans.
        ConfigurableLanguage::createFromLangcode('hu')->save();
        ConfigurableLanguage::createFromLangcode('ca')->save();
        ConfigurableLanguage::createFromLangcode('af')->save();
        // Enable content translation for the current entity type.
        \Drupal::service('content_translation.manager')->setEnabled('node', 'page', TRUE);
    }
    
    /**
     * Tests node access fallback handling with multiple node languages.
     */
    public function testNodeAccessLanguageFallback() : void {
        // The node_access_test module allows nodes to be marked private. We need to
        // ensure that system honors the fallback system of node access properly.
        // Note that node_access_test_language is language-sensitive and does not
        // apply to the fallback test.
        // Create one node in Hungarian and marked as private.
        $node = $this->drupalCreateNode([
            'body' => [
                [],
            ],
            'langcode' => 'hu',
            'private' => [
                [
                    'value' => 1,
                ],
            ],
            'status' => 1,
        ]);
        // There should be one entry in node_access, with fallback set to hu.
        $this->checkRecords(1, 'hu');
        // Create a translation user.
        $admin = $this->drupalCreateUser([
            'bypass node access',
            'administer nodes',
            'translate any entity',
            'administer content translation',
        ]);
        $this->drupalLogin($admin);
        $this->drupalGet('node/' . $node->id() . '/translations');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Create a Catalan translation through the UI.
        $url_options = [
            'language' => \Drupal::languageManager()->getLanguage('ca'),
        ];
        $this->drupalGet('node/' . $node->id() . '/translations/add/hu/ca', $url_options);
        $this->assertSession()
            ->statusCodeEquals(200);
        // Save the form.
        $this->getSession()
            ->getPage()
            ->pressButton('Save (this translation)');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Check the node access table.
        $this->checkRecords(2, 'hu');
        // Programmatically create a translation. This process lets us check that
        // both forms and code behave in the same way.
        $storage = \Drupal::entityTypeManager()->getStorage('node');
        // Reload the node.
        $node = $storage->load(1);
        // Create an Afrikaans translation.
        $translation = $node->addTranslation('af');
        $translation->title->value = $this->randomString();
        $translation->status = 1;
        $node->save();
        // Check the node access table.
        $this->checkRecords(3, 'hu');
        // For completeness, edit the Catalan version again.
        $this->drupalGet('node/' . $node->id() . '/edit', $url_options);
        $this->assertSession()
            ->statusCodeEquals(200);
        // Save the form.
        $this->getSession()
            ->getPage()
            ->pressButton('Save (this translation)');
        $this->assertSession()
            ->statusCodeEquals(200);
        // Check the node access table.
        $this->checkRecords(3, 'hu');
    }
    
    /**
     * Queries the node_access table and checks for proper storage.
     *
     * @param int $count
     *   The number of rows expected by the query (equal to the translation
     *   count).
     * @param $langcode
     *   The expected language code set as the fallback property.
     */
    public function checkRecords($count, $langcode = 'hu') : void {
        $select = \Drupal::database()->select('node_access', 'na')
            ->fields('na', [
            'nid',
            'fallback',
            'langcode',
            'grant_view',
        ])
            ->condition('na.realm', 'node_access_test', '=')
            ->condition('na.gid', 8888, '=');
        $records = $select->execute()
            ->fetchAll();
        // Check that the expected record count is returned.
        $this->assertCount($count, $records);
        // The fallback value is 'hu' and should be set to 1. For other languages,
        // it should be set to 0. Casting to boolean lets us run that comparison.
        foreach ($records as $record) {
            $this->assertEquals((bool) $record->fallback, $record->langcode === $langcode);
        }
    }

}