class ImageFieldDisplayTestCase

class ImageFieldDisplayTestCase extends ImageFieldTestCase {
  public static function getInfo() {
    return array(
      'name' => 'Image field display tests',
      'description' => 'Test the display of image fields.',
      'group' => 'Image',
    );
  }

  /**
   * Test image formatters on node display for public files.
   */
  function testImageFieldFormattersPublic() {
    $this
      ->_testImageFieldFormatters('public');
  }

  /**
   * Test image formatters on node display for private files.
   */
  function testImageFieldFormattersPrivate() {

    // Remove access content permission from anonymous users.
    user_role_change_permissions(DRUPAL_ANONYMOUS_RID, array(
      'access content' => FALSE,
    ));
    $this
      ->_testImageFieldFormatters('private');
  }

  /**
   * Test image formatters on node display.
   */
  function _testImageFieldFormatters($scheme) {
    $field_name = strtolower($this
      ->randomName());
    $this
      ->createImageField($field_name, 'article', array(
      'uri_scheme' => $scheme,
    ));

    // Create a new node with an image attached.
    $test_image = current($this
      ->drupalGetTestFiles('image'));
    $nid = $this
      ->uploadNodeImage($test_image, $field_name, 'article');
    $node = node_load($nid, NULL, TRUE);

    // Test that the default formatter is being used.
    $image_uri = $node->{$field_name}[LANGUAGE_NONE][0]['uri'];
    $image_info = array(
      'path' => $image_uri,
      'width' => 40,
      'height' => 20,
    );
    $default_output = theme('image', $image_info);
    $this
      ->assertRaw($default_output, 'Default formatter displaying correctly on full node view.');

    // Test the image linked to file formatter.
    $instance = field_info_instance('node', $field_name, 'article');
    $instance['display']['default']['type'] = 'image';
    $instance['display']['default']['settings']['image_link'] = 'file';
    field_update_instance($instance);
    $default_output = l(theme('image', $image_info), file_create_url($image_uri), array(
      'html' => TRUE,
    ));
    $this
      ->drupalGet('node/' . $nid);
    $this
      ->assertRaw($default_output, 'Image linked to file formatter displaying correctly on full node view.');

    // Verify that the image can be downloaded.
    $this
      ->assertEqual(file_get_contents($test_image->uri), $this
      ->drupalGet(file_create_url($image_uri)), 'File was downloaded successfully.');
    if ($scheme == 'private') {

      // Only verify HTTP headers when using private scheme and the headers are
      // sent by Drupal.
      $this
        ->assertEqual($this
        ->drupalGetHeader('Content-Type'), 'image/png', 'Content-Type header was sent.');
      $this
        ->assertEqual($this
        ->drupalGetHeader('Cache-Control'), 'private', 'Cache-Control header was sent.');

      // Log out and try to access the file.
      $this
        ->drupalLogout();
      $this
        ->drupalGet(file_create_url($image_uri));
      $this
        ->assertResponse('403', 'Access denied to original image as anonymous user.');

      // Log in again.
      $this
        ->drupalLogin($this->admin_user);
    }

    // Test the image linked to content formatter.
    $instance['display']['default']['settings']['image_link'] = 'content';
    field_update_instance($instance);
    $default_output = l(theme('image', $image_info), 'node/' . $nid, array(
      'html' => TRUE,
      'attributes' => array(
        'class' => 'active',
      ),
    ));
    $this
      ->drupalGet('node/' . $nid);
    $this
      ->assertRaw($default_output, 'Image linked to content formatter displaying correctly on full node view.');

    // Test the image style 'thumbnail' formatter.
    $instance['display']['default']['settings']['image_link'] = '';
    $instance['display']['default']['settings']['image_style'] = 'thumbnail';
    field_update_instance($instance);

    // Ensure the derivative image is generated so we do not have to deal with
    // image style callback paths.
    $this
      ->drupalGet(image_style_url('thumbnail', $image_uri));

    // Need to create the URL again since it will change if clean URLs
    // are disabled.
    $image_info['path'] = image_style_url('thumbnail', $image_uri);
    $image_info['width'] = 100;
    $image_info['height'] = 50;
    $default_output = theme('image', $image_info);
    $this
      ->drupalGet('node/' . $nid);
    $this
      ->assertRaw($default_output, 'Image style thumbnail formatter displaying correctly on full node view.');
    if ($scheme == 'private') {

      // Log out and try to access the file.
      $this
        ->drupalLogout();
      $this
        ->drupalGet(image_style_url('thumbnail', $image_uri));
      $this
        ->assertResponse('403', 'Access denied to image style thumbnail as anonymous user.');
    }
  }

  /**
   * Tests for image field settings.
   */
  function testImageFieldSettings() {
    $test_image = current($this
      ->drupalGetTestFiles('image'));
    list(, $test_image_extension) = explode('.', $test_image->filename);
    $field_name = strtolower($this
      ->randomName());
    $instance_settings = array(
      'alt_field' => 1,
      'file_extensions' => $test_image_extension,
      'max_filesize' => '50 KB',
      'max_resolution' => '100x100',
      'min_resolution' => '10x10',
      'title_field' => 1,
    );
    $widget_settings = array(
      'preview_image_style' => 'medium',
    );
    $field = $this
      ->createImageField($field_name, 'article', array(), $instance_settings, $widget_settings);
    $field['deleted'] = 0;
    $table = _field_sql_storage_tablename($field);
    $schema = drupal_get_schema($table, TRUE);
    $instance = field_info_instance('node', $field_name, 'article');
    $this
      ->drupalGet('node/add/article');
    $this
      ->assertText(t('Files must be less than 50 KB.'), 'Image widget max file size is displayed on article form.');
    $this
      ->assertText(t('Allowed file types: ' . $test_image_extension . '.'), 'Image widget allowed file types displayed on article form.');
    $this
      ->assertText(t('Images must be between 10x10 and 100x100 pixels.'), 'Image widget allowed resolution displayed on article form.');

    // We have to create the article first and then edit it because the alt
    // and title fields do not display until the image has been attached.
    $nid = $this
      ->uploadNodeImage($test_image, $field_name, 'article');
    $this
      ->drupalGet('node/' . $nid . '/edit');
    $this
      ->assertFieldByName($field_name . '[' . LANGUAGE_NONE . '][0][alt]', '', 'Alt field displayed on article form.');
    $this
      ->assertFieldByName($field_name . '[' . LANGUAGE_NONE . '][0][title]', '', 'Title field displayed on article form.');

    // Verify that the attached image is being previewed using the 'medium'
    // style.
    $node = node_load($nid, NULL, TRUE);
    $image_info = array(
      'path' => image_style_url('medium', $node->{$field_name}[LANGUAGE_NONE][0]['uri']),
      'width' => 220,
      'height' => 110,
    );
    $default_output = theme('image', $image_info);
    $this
      ->assertRaw($default_output, "Preview image is displayed using 'medium' style.");

    // Add alt/title fields to the image and verify that they are displayed.
    $image_info = array(
      'path' => $node->{$field_name}[LANGUAGE_NONE][0]['uri'],
      'alt' => $this
        ->randomName(),
      'title' => $this
        ->randomName(),
      'width' => 40,
      'height' => 20,
    );
    $edit = array(
      $field_name . '[' . LANGUAGE_NONE . '][0][alt]' => $image_info['alt'],
      $field_name . '[' . LANGUAGE_NONE . '][0][title]' => $image_info['title'],
    );
    $this
      ->drupalPost('node/' . $nid . '/edit', $edit, t('Save'));
    $default_output = theme('image', $image_info);
    $this
      ->assertRaw($default_output, 'Image displayed using user supplied alt and title attributes.');

    // Verify that alt/title longer than allowed results in a validation error.
    $test_size = 2000;
    $edit = array(
      $field_name . '[' . LANGUAGE_NONE . '][0][alt]' => $this
        ->randomName($test_size),
      $field_name . '[' . LANGUAGE_NONE . '][0][title]' => $this
        ->randomName($test_size),
    );
    $this
      ->drupalPost('node/' . $nid . '/edit', $edit, t('Save'));
    $this
      ->assertRaw(t('Alternate text cannot be longer than %max characters but is currently %length characters long.', array(
      '%max' => $schema['fields'][$field_name . '_alt']['length'],
      '%length' => $test_size,
    )));
    $this
      ->assertRaw(t('Title cannot be longer than %max characters but is currently %length characters long.', array(
      '%max' => $schema['fields'][$field_name . '_title']['length'],
      '%length' => $test_size,
    )));
  }

  /**
   * Test passing attributes into the image field formatters.
   */
  function testImageFieldFormatterAttributes() {
    $image = theme('image_formatter', array(
      'item' => array(
        'uri' => 'http://example.com/example.png',
        'attributes' => array(
          'data-image-field-formatter' => 'testFound',
        ),
        'alt' => t('Image field formatter attribute test.'),
        'title' => t('Image field formatter'),
      ),
    ));
    $this
      ->assertTrue(stripos($image, 'testFound') > 0, 'Image field formatters can have attributes.');
  }

  /**
   * Test use of a default image with an image field.
   */
  function testImageFieldDefaultImage() {

    // Create a new image field.
    $field_name = strtolower($this
      ->randomName());
    $this
      ->createImageField($field_name, 'article');

    // Create a new node, with no images and verify that no images are
    // displayed.
    $node = $this
      ->drupalCreateNode(array(
      'type' => 'article',
    ));
    $this
      ->drupalGet('node/' . $node->nid);

    // Verify that no image is displayed on the page by checking for the class
    // that would be used on the image field.
    $this
      ->assertNoPattern('<div class="(.*?)field-name-' . strtr($field_name, '_', '-') . '(.*?)">', 'No image displayed when no image is attached and no default image specified.');

    // Add a default image to the public imagefield instance.
    $images = $this
      ->drupalGetTestFiles('image');
    $edit = array(
      'files[field_settings_default_image]' => drupal_realpath($images[0]->uri),
    );
    $this
      ->drupalPost('admin/structure/types/manage/article/fields/' . $field_name, $edit, t('Save settings'));

    // Clear field info cache so the new default image is detected.
    field_info_cache_clear();
    $field = field_info_field($field_name);
    $image = file_load($field['settings']['default_image']);
    $this
      ->assertTrue($image->status == FILE_STATUS_PERMANENT, 'The default image status is permanent.');
    $default_output = theme('image', array(
      'path' => $image->uri,
    ));
    $this
      ->drupalGet('node/' . $node->nid);
    $this
      ->assertRaw($default_output, 'Default image displayed when no user supplied image is present.');

    // Create a node with an image attached and ensure that the default image
    // is not displayed.
    $nid = $this
      ->uploadNodeImage($images[1], $field_name, 'article');
    $node = node_load($nid, NULL, TRUE);
    $image_info = array(
      'path' => $node->{$field_name}[LANGUAGE_NONE][0]['uri'],
      'width' => 40,
      'height' => 20,
    );
    $image_output = theme('image', $image_info);
    $this
      ->drupalGet('node/' . $nid);
    $this
      ->assertNoRaw($default_output, 'Default image is not displayed when user supplied image is present.');
    $this
      ->assertRaw($image_output, 'User supplied image is displayed.');

    // Remove default image from the field and make sure it is no longer used.
    $edit = array(
      'field[settings][default_image][fid]' => 0,
    );
    $this
      ->drupalPost('admin/structure/types/manage/article/fields/' . $field_name, $edit, t('Save settings'));

    // Clear field info cache so the new default image is detected.
    field_info_cache_clear();
    $field = field_info_field($field_name);
    $this
      ->assertFalse($field['settings']['default_image'], 'Default image removed from field.');

    // Create an image field that uses the private:// scheme and test that the
    // default image works as expected.
    $private_field_name = strtolower($this
      ->randomName());
    $this
      ->createImageField($private_field_name, 'article', array(
      'uri_scheme' => 'private',
    ));

    // Add a default image to the new field.
    $edit = array(
      'files[field_settings_default_image]' => drupal_realpath($images[1]->uri),
    );
    $this
      ->drupalPost('admin/structure/types/manage/article/fields/' . $private_field_name, $edit, t('Save settings'));
    $private_field = field_info_field($private_field_name);
    $image = file_load($private_field['settings']['default_image']);
    $this
      ->assertEqual('private', file_uri_scheme($image->uri), 'Default image uses private:// scheme.');
    $this
      ->assertTrue($image->status == FILE_STATUS_PERMANENT, 'The default image status is permanent.');

    // Create a new node with no image attached and ensure that default private
    // image is displayed.
    $node = $this
      ->drupalCreateNode(array(
      'type' => 'article',
    ));
    $default_output = theme('image', array(
      'path' => $image->uri,
    ));
    $this
      ->drupalGet('node/' . $node->nid);
    $this
      ->assertRaw($default_output, 'Default private image displayed when no user supplied image is present.');
  }

}