class FileFieldDisplayTest

class FileFieldDisplayTest extends FileFieldTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests normal formatter display on node display.
     */
    public function testNodeDisplay() {
        $field_name = strtolower($this->randomMachineName());
        $type_name = 'article';
        $field_storage_settings = [
            'display_field' => '1',
            'display_default' => '1',
            'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
        ];
        $field_settings = [
            'description_field' => '1',
        ];
        $widget_settings = [];
        $this->createFileField($field_name, 'node', $type_name, $field_storage_settings, $field_settings, $widget_settings);
        // Create a new node *without* the file field set, and check that the field
        // is not shown for each node display.
        $node = $this->drupalCreateNode([
            'type' => $type_name,
        ]);
        // Check file_default last as the assertions below assume that this is the
        // case.
        $file_formatters = [
            'file_table',
            'file_url_plain',
            'hidden',
            'file_default',
        ];
        foreach ($file_formatters as $formatter) {
            if ($formatter === 'hidden') {
                $edit = [
                    "fields[{$field_name}][region]" => 'hidden',
                ];
            }
            else {
                $edit = [
                    "fields[{$field_name}][type]" => $formatter,
                    "fields[{$field_name}][region]" => 'content',
                ];
            }
            $this->drupalPostForm("admin/structure/types/manage/{$type_name}/display", $edit, t('Save'));
            $this->drupalGet('node/' . $node->id());
            $this->assertNoText($field_name, new FormattableMarkup('Field label is hidden when no file attached for formatter %formatter', [
                '%formatter' => $formatter,
            ]));
        }
        $this->generateFile('escaped-&-text', 64, 10, 'text');
        $test_file = File::create([
            'uri' => 'public://escaped-&-text.txt',
            'name' => 'escaped-&-text',
            'filesize' => filesize('public://escaped-&-text.txt'),
        ]);
        // Create a new node with the uploaded file.
        $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);
        // Check that the default formatter is displaying with the file name.
        $node_storage = $this->container
            ->get('entity_type.manager')
            ->getStorage('node');
        $node_storage->resetCache([
            $nid,
        ]);
        $node = $node_storage->load($nid);
        $node_file = File::load($node->{$field_name}->target_id);
        $file_link = [
            '#theme' => 'file_link',
            '#file' => $node_file,
        ];
        $default_output = \Drupal::service('renderer')->renderRoot($file_link);
        $this->assertRaw($default_output, 'Default formatter displaying correctly on full node view.');
        // Turn the "display" option off and check that the file is no longer displayed.
        $edit = [
            $field_name . '[0][display]' => FALSE,
        ];
        $this->drupalPostForm('node/' . $nid . '/edit', $edit, t('Save'));
        $this->assertNoRaw($default_output, 'Field is hidden when "display" option is unchecked.');
        // Add a description and make sure that it is displayed.
        $description = $this->randomMachineName();
        $edit = [
            $field_name . '[0][description]' => $description,
            $field_name . '[0][display]' => TRUE,
        ];
        $this->drupalPostForm('node/' . $nid . '/edit', $edit, t('Save'));
        $this->assertText($description);
        // Ensure the filename in the link's title attribute is escaped.
        $this->assertRaw('title="escaped-&-text.txt"');
        // Test that fields appear as expected after during the preview.
        // Add a second file.
        $name = 'files[' . $field_name . '_1][]';
        $edit_upload[$name] = \Drupal::service('file_system')->realpath($test_file->getFileUri());
        $this->drupalPostForm("node/{$nid}/edit", $edit_upload, t('Upload'));
        // Uncheck the display checkboxes and go to the preview.
        $edit[$field_name . '[0][display]'] = FALSE;
        $edit[$field_name . '[1][display]'] = FALSE;
        $this->drupalPostForm(NULL, $edit, t('Preview'));
        $this->clickLink(t('Back to content editing'));
        $this->assertRaw($field_name . '[0][display]', 'First file appears as expected.');
        $this->assertRaw($field_name . '[1][display]', 'Second file appears as expected.');
        $this->assertSession()
            ->responseContains($field_name . '[1][description]', 'Description of second file appears as expected.');
        // Check that the file fields don't contain duplicate HTML IDs.
        $this->assertNoDuplicateIds();
    }
    
    /**
     * Tests default display of File Field.
     */
    public function testDefaultFileFieldDisplay() {
        $field_name = strtolower($this->randomMachineName());
        $type_name = 'article';
        $field_storage_settings = [
            'display_field' => '1',
            'display_default' => '0',
            'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
        ];
        $field_settings = [
            'description_field' => '1',
        ];
        $widget_settings = [];
        $this->createFileField($field_name, 'node', $type_name, $field_storage_settings, $field_settings, $widget_settings);
        $test_file = $this->getTestFile('text');
        // Create a new node with the uploaded file.
        $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);
        $this->drupalGet('node/' . $nid . '/edit');
        $this->assertFieldByXPath('//input[@type="checkbox" and @name="' . $field_name . '[0][display]"]', NULL, 'Default file display checkbox field exists.');
        $this->assertFieldByXPath('//input[@type="checkbox" and @name="' . $field_name . '[0][display]" and not(@checked)]', NULL, 'Default file display is off.');
    }
    
    /**
     * Tests description toggle for field instance configuration.
     */
    public function testDescToggle() {
        $type_name = 'test';
        $field_type = 'file';
        $field_name = strtolower($this->randomMachineName());
        // Use the UI to add a new content type that also contains a file field.
        $edit = [
            'name' => $type_name,
            'type' => $type_name,
        ];
        $this->drupalPostForm('admin/structure/types/add', $edit, t('Save and manage fields'));
        $edit = [
            'new_storage_type' => $field_type,
            'field_name' => $field_name,
            'label' => $this->randomString(),
        ];
        $this->drupalPostForm('/admin/structure/types/manage/' . $type_name . '/fields/add-field', $edit, t('Save and continue'));
        $this->drupalPostForm(NULL, [], t('Save field settings'));
        // Ensure the description field is selected on the field instance settings
        // form. That's what this test is all about.
        $edit = [
            'settings[description_field]' => TRUE,
        ];
        $this->drupalPostForm(NULL, $edit, t('Save settings'));
        // Add a node of our new type and upload a file to it.
        $file = current($this->drupalGetTestFiles('text'));
        $title = $this->randomString();
        $edit = [
            'title[0][value]' => $title,
            'files[field_' . $field_name . '_0]' => \Drupal::service('file_system')->realpath($file->uri),
        ];
        $this->drupalPostForm('node/add/' . $type_name, $edit, t('Save'));
        $node = $this->drupalGetNodeByTitle($title);
        $this->drupalGet('node/' . $node->id() . '/edit');
        $this->assertText(t('The description may be used as the label of the link to the file.'));
    }
    
    /**
     * Tests description display of File Field.
     */
    public function testDescriptionDefaultFileFieldDisplay() {
        $field_name = strtolower($this->randomMachineName());
        $type_name = 'article';
        $field_storage_settings = [
            'display_field' => '1',
            'display_default' => '1',
            'cardinality' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED,
        ];
        $field_settings = [
            'description_field' => '1',
        ];
        $widget_settings = [];
        $this->createFileField($field_name, 'node', $type_name, $field_storage_settings, $field_settings, $widget_settings);
        $test_file = $this->getTestFile('text');
        // Create a new node with the uploaded file.
        $nid = $this->uploadNodeFile($test_file, $field_name, $type_name);
        // Add file description.
        $description = 'This is the test file description';
        $this->drupalPostForm("node/{$nid}/edit", [
            $field_name . '[0][description]' => $description,
        ], t('Save'));
        // Load uncached node.
        \Drupal::entityTypeManager()->getStorage('node')
            ->resetCache([
            $nid,
        ]);
        $node = Node::load($nid);
        // Test default formatter.
        $this->drupalGet('node/' . $nid);
        $this->assertFieldByXPath('//a[@href="' . $node->{$field_name}->entity
            ->createFileUrl(FALSE) . '"]', $description);
        // Change formatter to "Table of files".
        $display = \Drupal::entityTypeManager()->getStorage('entity_view_display')
            ->load('node.' . $type_name . '.default');
        $display->setComponent($field_name, [
            'label' => 'hidden',
            'type' => 'file_table',
        ])
            ->save();
        $this->drupalGet('node/' . $nid);
        $this->assertFieldByXPath('//a[@href="' . $node->{$field_name}->entity
            ->createFileUrl(FALSE) . '"]', $description);
    }
    
    /**
     * Asserts that each HTML ID is used for just a single element on the page.
     *
     * @param string $message
     *   (optional) A message to display with the assertion.
     */
    protected function assertNoDuplicateIds($message = '') {
        $args = [
            '@url' => $this->getUrl(),
        ];
        if (!($elements = $this->xpath('//*[@id]'))) {
            $this->fail(new FormattableMarkup('The page @url contains no HTML IDs.', $args));
            return;
        }
        $message = $message ?: new FormattableMarkup('The page @url does not contain duplicate HTML IDs', $args);
        $seen_ids = [];
        foreach ($elements as $element) {
            $id = $element->getAttribute('id');
            if (isset($seen_ids[$id])) {
                $this->fail($message);
                return;
            }
            $seen_ids[$id] = TRUE;
        }
        $this->assertTrue(TRUE, $message);
    }

}