public function test_wp_ajax_send_attachment_to_editor_should_return_an_image() {
    // Become an administrator.
    $post    = $_POST;
    $user_id = self::factory()->user->create(
      array(
        'role'       => 'administrator',
        'user_login' => 'user_36578_administrator',
        'user_email' => 'user_36578_administrator@example.com',
      )
    );
    wp_set_current_user( $user_id );
    $_POST = array_merge( $_POST, $post );

    $filename = DIR_TESTDATA . '/images/canola.jpg';
    $contents = file_get_contents( $filename );

    $upload     = wp_upload_bits( wp_basename( $filename ), null, $contents );
    $attachment = $this->_make_attachment( $upload );

    // Set up a default request.
    $_POST['nonce']      = wp_create_nonce( 'media-send-to-editor' );
    $_POST['html']       = 'Bar Baz';
    $_POST['post_id']    = 0;
    $_POST['attachment'] = array(
      'id'         => $attachment,
      'align'      => 'left',
      'image-size' => 'large',
      'image_alt'  => 'Foo bar',
      'url'        => 'http://example.com/',
    );

    // Make the request.
    try {
      $this->_handleAjax( 'send-attachment-to-editor' );
    } catch ( WPAjaxDieContinueException $e ) {
      unset( $e );
    }

    // Get the response.
    $response = json_decode( $this->_last_response, true );

    $expected = get_image_send_to_editor( $attachment, '', '', 'left', 'http://example.com/', false, 'large', 'Foo bar' );

    // Ensure everything is correct.
    $this->assertTrue( $response['success'] );
    $this->assertSame( $expected, $response['data'] );
  }