<?php

class ServicesWebTestCase extends DrupalWebTestCase {

  public function setUp() {
    $modules = func_get_args();
    if (isset($modules[0]) && is_array($modules[0])) {
      $modules = $modules[0];
    }

    // Add the required module dependencies.
    array_unshift($modules, 'ctools', 'services', 'rest_server');

    parent::setUp($modules);
    // Use a cookie file, so login sessions will survive, even if we
    // reinitialize Curl.
    $this->cookieFile = drupal_tempnam(variable_get('file_temporary_path'), 'services_cookiejar');
    // Load the cookie file when initializing Curl.
    $this->additionalCurlOptions[CURLOPT_COOKIEFILE] = $this->cookieFile;
  }

  /**
   * Perform GET request.
   */
  protected function servicesGet($url, $data = NULL, $headers = array()) {
    $options = array('query' => $data);
    $url = url($this->getAbsoluteUrl($url) . '.php', $options);
    $content = $this->curlExec(array(
      CURLOPT_HTTPGET => TRUE,
      CURLOPT_URL => $url,
      CURLOPT_NOBODY => FALSE,
      CURLOPT_RETURNTRANSFER => TRUE,
      CURLOPT_HEADER => TRUE,
      CURLOPT_HTTPHEADER => $headers
    ));

    // Parse response.
    list($info, $header, $status, $code, $body) = $this->parseHeader($content);

    $this->verbose('GET request to: ' . $url .
                    '<hr />headers: ' . highlight_string('<?php ' . var_export($headers, TRUE), TRUE) .
                   '<hr />Arguments: ' . highlight_string('<?php ' . var_export($data, TRUE), TRUE) .
                   '<hr />Response: ' . highlight_string('<?php ' . var_export($body, TRUE), TRUE) .
                   '<hr />Raw response: ' . $content);
    return array('header' => $header, 'status' => $status, 'code' => $code, 'body' => $body);
  }

  /**
   * Post file as multipart/form-data.
   */
  protected function servicesPostFile($url, $filepath, $headers = array(), $additional_arguments = array()) {
    $this->addCSRFHeader($headers);
    if (!is_array($filepath)) {
      $filepath = array($filepath);
    }
    // Add .php to get serialized response.
    $url = $this->getAbsoluteUrl($url) . '.php';

    // Otherwise Services will reject arguments.
    $headers[] = "Content-type: multipart/form-data";
    // Prepare arguments.
    $post = $additional_arguments;
    $i = 0;
    foreach ($filepath as $path) {
      $post['files[file_contents' . $i . ']'] = '@' . variable_get('file_public_path', '') . '/' . file_uri_target($path);
      $i++;
    }

    $content = $this->curlExec(array(
      CURLOPT_URL => $url,
      CURLOPT_POST => TRUE,
      CURLOPT_POSTFIELDS => $post,
      CURLOPT_HTTPHEADER => $headers,
      CURLOPT_HEADER => TRUE,
      CURLOPT_RETURNTRANSFER => TRUE,
      CURLOPT_FOLLOWLOCATION => TRUE,
      CURLOPT_VERBOSE => TRUE,
    ));

    // Parse response.
    list($info, $header, $status, $code, $body) = $this->parseHeader($content);

    $this->verbose('POST request to: ' . $url .
                   '<hr />File Name(s): ' . highlight_string('<?php . ' . var_export($filepath, TRUE), TRUE) .
                   '<hr />Response: ' . highlight_string('<?php ' . var_export($body, TRUE), TRUE) .
                   '<hr />Curl info: ' . highlight_string('<?php ' . var_export($info, TRUE), TRUE) .
                   '<hr />Raw response: ' . $content);
    return array('header' => $header, 'status' => $status, 'code' => $code, 'body' => $body);
  }

  /**
   * Perform POST request.
   */
  protected function servicesPost($url, $data = array(), $headers = array(), $call_type = 'php') {
    $this->addCSRFHeader($headers);

    switch ($call_type) {
      case 'php':
        // Add .php to get serialized response.
        $url = $this->getAbsoluteUrl($url) . '.php';
        // Otherwise Services will reject arguments.
        $headers[] = "Content-type: application/x-www-form-urlencoded";
        // Prepare arguments.
        $post = drupal_http_build_query($data, '', '&');
        break;
      case 'json':
        // Add .json to get json encoded response.
        $url = $this->getAbsoluteUrl($url) . '.json';
        // Set proper headers.
        $headers[] = "Content-type: application/json";
        // Prepare arguments.
        $post = json_encode($data);
        break;
    }

    $content = $this->curlExec(array(
      CURLOPT_URL => $url,
      CURLOPT_POST => TRUE,
      CURLOPT_POSTFIELDS => $post,
      CURLOPT_HTTPHEADER => $headers,
      CURLOPT_HEADER => TRUE,
      CURLOPT_RETURNTRANSFER => TRUE
    ));

    // Parse response.
    list($info, $header, $status, $code, $body) = $this->parseHeader($content, $call_type);

    $this->verbose('POST request to: ' . $url .
                   '<hr />Arguments: ' . highlight_string('<?php ' . var_export($data, TRUE), TRUE) .
                   '<hr />Raw POST body: ' . $post .
                   '<hr />Response: ' . highlight_string('<?php ' . var_export($body, TRUE), TRUE) .
                   '<hr />Curl info: ' . highlight_string('<?php ' . var_export($info, TRUE), TRUE) .
                   '<hr />Raw response: ' . $content);
    return array('header' => $header, 'status' => $status, 'code' => $code, 'body' => $body);
  }

  /**
   * Perform PUT request.
   */
  protected function servicesPut($url, $data = NULL, $headers = array(), $call_type = 'php') {
    $this->addCSRFHeader($headers);
    switch ($call_type) {
      case 'php':
        // Add .php to get serialized response.
        $url = $this->getAbsoluteUrl($url) . '.php';
        // Otherwise Services will reject arguments.
        $headers[] = "Content-type: application/x-www-form-urlencoded";
        // Prepare arguments.
        $post = drupal_http_build_query($data, '', '&');
        break;
      case 'json':
        // Add .json to get json encoded response.
        $url = $this->getAbsoluteUrl($url) . '.json';
        // Set proper headers.
        $headers[] = "Content-type: application/json";
        // Prepare arguments.
        $post = json_encode($data);
        break;
    }

    // Emulate file.
    $putData = fopen('php://temp', 'rw+');
    fwrite($putData, $post);
    fseek($putData, 0);

    $content = $this->curlExec(array(
      CURLOPT_URL => $url,
      CURLOPT_RETURNTRANSFER => TRUE,
      CURLOPT_PUT => TRUE,
      CURLOPT_HEADER => TRUE,
      CURLOPT_HTTPHEADER => $headers,
      CURLOPT_INFILE => $putData,
      CURLOPT_INFILESIZE => drupal_strlen($post)
    ));
    fclose($putData);

    // Parse response.
    list($info, $header, $status, $code, $body) = $this->parseHeader($content, $call_type);

    $this->verbose('PUT request to: ' . $url .
                   '<hr />Arguments: ' . highlight_string('<?php ' . var_export($data, TRUE), TRUE) .
                   '<hr />Raw POST body: ' . $post .
                   '<hr />Response: ' . highlight_string('<?php ' . var_export($body, TRUE), TRUE) .
                   '<hr />Curl info: ' . highlight_string('<?php ' . var_export($info, TRUE), TRUE) .
                   '<hr />Raw response: ' . $content);
    return array('header' => $header, 'status' => $status, 'code' => $code, 'body' => $body);
  }

  /**
   * Perform DELETE request.
   */
  protected function servicesDelete($url, $data = NULL, $headers = array()) {
    $this->addCSRFHeader($headers);
    $options = array('query' => $data);
    $url = url($this->getAbsoluteUrl($url) . '.php', $options);

    $content = $this->curlExec(array(
      CURLOPT_URL => $url,
      CURLOPT_CUSTOMREQUEST => "DELETE",
      CURLOPT_HEADER => TRUE,
      CURLOPT_HTTPHEADER => $headers,
      CURLOPT_RETURNTRANSFER => TRUE
    ));

    // Parse response.
    list($info, $header, $status, $code, $body) = $this->parseHeader($content);

    $this->verbose('DELETE request to: ' . $url .
                   '<hr />Arguments: ' . highlight_string('<?php ' . var_export($data, TRUE), TRUE) .
                   '<hr />Response: ' . highlight_string('<?php ' . var_export($body, TRUE), TRUE) .
                   '<hr />Curl info: ' . highlight_string('<?php ' . var_export($info, TRUE), TRUE) .
                   '<hr />Raw response: ' . $content);
    return array('header' => $header, 'status' => $status, 'code' => $code, 'body' => $body);
  }

  /**
   * Perform HEAD request.
   */
  protected function servicesHead($url) {
    $url = url($this->getAbsoluteUrl($url) . '.php');

    $content = $this->curlExec(array(
      CURLOPT_URL => $url,
      CURLOPT_CUSTOMREQUEST => 'HEAD',
      CURLOPT_HEADER => TRUE,
      CURLOPT_RETURNTRANSFER => TRUE
    ));

    // Parse response.
    list($info, $header, $status, $code, $body) = $this->parseHeader($content);

    $this->verbose('HEAD request to: ' . $url .
      '<hr />Curl info: ' . highlight_string('<?php ' . var_export($info, TRUE), TRUE) .
      '<hr />Raw response: ' . $content);
    return array('header' => $header, 'status' => $status, 'code' => $code, 'body' => $body);
  }

  /*
  ------------------------------------
  HELPER METHODS
  ------------------------------------
  */

  /**
   * Parse header.
   *
   * @param type $content
   * @return type
   */
  function parseHeader($content, $call_type = 'php') {
    $info = curl_getinfo($this->curlHandle);
    $header = drupal_substr($content, 0, $info['header_size']);
    $header = str_replace("HTTP/1.1 100 Continue\r\n\r\n", '', $header);
    $status = strtok($header, "\r\n");
    $code = $info['http_code'];

    $raw_body = drupal_substr($content, $info['header_size'], drupal_strlen($content) - $info['header_size']);
    switch ($call_type) {
      case 'php':
        $body = unserialize($raw_body);
        break;
      case 'json':
        $body = json_decode($raw_body);
        break;
    }
    return array($info, $header, $status, $code, $body);
  }

  /**
   * Retrieve and set CSFR token header.
   *
   * @param array $headers
   */
  function addCSRFHeader(&$headers) {
    $csrf_token = $this->drupalGet('services/session/token');
    $headers[] = 'X-CSRF-Token: ' . $csrf_token;
  }

  /**
   * Creates a data array for populating an endpoint creation form.
   *
   * @return
   * An array of fields for fully populating an endpoint creation form.
   */
  public function populateEndpointFAPI() {
    return array(
      'name'   => strtolower($this->randomName(10)),
      'path'   => $this->randomName(10),
      'server' => 'rest_server',
    );
  }

  public function saveNewEndpoint() {
    $edit = $this->populateEndpointFAPI() ;
    $endpoint = new stdClass;
    $endpoint->disabled = FALSE; /* Edit this to true to make a default endpoint disabled initially */
    $endpoint->api_version = 3;
    $endpoint->name = $edit['name'];
    $endpoint->server = $edit['server'];
    $endpoint->path = $edit['path'];
    $endpoint->authentication = array(
      'services' => 'services',
    );
    $endpoint->server_settings = array(
      'formatters' => array(
        'json' => TRUE,
        'bencode' => TRUE,
        'rss' => TRUE,
        'plist' => TRUE,
        'xmlplist' => TRUE,
        'php' => TRUE,
        'yaml' => TRUE,
        'jsonp' => FALSE,
        'xml' => FALSE,
      ),
      'parsers' => array(
        'application/x-yaml' => TRUE,
        'application/json' => TRUE,
        'application/vnd.php.serialized' => TRUE,
        'application/plist' => TRUE,
        'application/plist+xml' => TRUE,
        'application/x-www-form-urlencoded' => TRUE,
        'multipart/form-data' => TRUE,
      ),
    );
    $endpoint->resources = array(
      'comment' => array(
        'operations' => array(
          'create' => array(
            'enabled' => 1,
          ),
          'retrieve' => array(
            'enabled' => 1,
          ),
          'update' => array(
            'enabled' => 1,
          ),
          'delete' => array(
            'enabled' => 1,
          ),
          'index' => array(
            'enabled' => 1,
          ),
        ),
        'actions' => array(
          'countAll' => array(
            'enabled' => 1,
          ),
          'countNew' => array(
            'enabled' => 1,
          ),
        ),
      ),
      'file' => array(
        'operations' => array(
          'create' => array(
            'enabled' => 1,
          ),
          'retrieve' => array(
            'enabled' => 1,
          ),
          'delete' => array(
            'enabled' => 1,
          ),
          'index' => array(
            'enabled' => 1,
          ),
        ),
        'actions' => array(
          'create_raw' => array(
            'enabled' => 1,
          ),
        ),
      ),
      'node' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => 1,
          ),
          'create' => array(
            'enabled' => 1,
          ),
          'update' => array(
            'enabled' => 1,
          ),
          'delete' => array(
            'enabled' => 1,
          ),
          'index' => array(
            'enabled' => 1,
          ),
        ),
        'relationships' => array(
          'files' => array(
            'enabled' => 1,
          ),
          'comments' => array(
            'enabled' => 1,
          ),
        ),
        'targeted_actions' => array(
          'attach_file' => array(
            'enabled' => 1,
          ),
        ),
      ),
      'system' => array(
        'actions' => array(
          'connect' => array(
            'enabled' => 1,
          ),
          'get_variable' => array(
            'enabled' => 1,
          ),
          'set_variable' => array(
            'enabled' => 1,
          ),
          'del_variable' => array(
            'enabled' => 1,
          ),
        ),
      ),
      'taxonomy_term' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => 1,
          ),
          'create' => array(
            'enabled' => 1,
          ),
          'update' => array(
            'enabled' => 1,
          ),
          'delete' => array(
            'enabled' => 1,
          ),
          'index' => array(
            'enabled' => 1,
          ),
        ),
        'actions' => array(
          'selectNodes' => array(
            'enabled' => 1,
          ),
        ),
      ),
      'taxonomy_vocabulary' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => 1,
          ),
          'create' => array(
            'enabled' => 1,
          ),
          'update' => array(
            'enabled' => 1,
          ),
          'delete' => array(
            'enabled' => 1,
          ),
          'index' => array(
            'enabled' => 1,
          ),
        ),
        'actions' => array(
          'getTree' => array(
            'enabled' => 1,
          ),
        ),
      ),
      'user' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => 1,
          ),
          'create' => array(
            'enabled' => 1,
          ),
          'update' => array(
            'enabled' => 1,
          ),
          'delete' => array(
            'enabled' => 1,
          ),
          'index' => array(
            'enabled' => 1,
          ),
        ),
        'actions' => array(
          'login' => array(
            'enabled' => 1,
          ),
          'logout' => array(
            'enabled' => '1',
            'settings' => array(
              'services' => array(
                'resource_api_version' => '1.1',
              ),
            ),
          ),
          'register' => array(
            'enabled' => 1,
          ),
          'request_new_password' => array(
            'enabled' => 1,
          ),
        ),
        'targeted_actions' => array(
          'cancel' => array(
            'enabled' => 1,
          ),
          'password_reset' => array(
            'enabled' => 1,
          ),
          'resend_welcome_email' => array(
            'enabled' => 1,
          ),
        ),
      ),
    );
    $endpoint->debug = 1;
    $endpoint->export_type = FALSE;
    services_endpoint_save($endpoint);
    $endpoint = services_endpoint_load($endpoint->name);
    $this->assertTrue($endpoint->name == $edit['name'], 'Endpoint successfully created');
    return $endpoint;
  }

  public function saveNewVersionEndpoint($version = '1.0') {
    $edit = $this->populateEndpointFAPI() ;
    $endpoint = new stdClass();
    $endpoint->disabled = FALSE; /* Edit this to true to make a default endpoint disabled initially */
    $endpoint->api_version = 3;
    $endpoint->name = $edit['name'];
    $endpoint->server = $edit['server'];
    $endpoint->path = $edit['path'];
    $endpoint->authentication = array(
      'services' => array(),
    );
    $endpoint->server_settings = array(
      'formatters' => array(
        'bencode' => TRUE,
        'json' => TRUE,
        'php' => TRUE,
        'plist' => TRUE,
        'rss' => TRUE,
        'xml' => TRUE,
        'xmlplist' => TRUE,
        'jsonp' => FALSE,
      ),
      'parsers' => array(
        'application/json' => TRUE,
        'application/plist' => TRUE,
        'application/plist+xml' => TRUE,
        'application/vnd.php.serialized' => TRUE,
        'multipart/form-data' => TRUE,
        'application/x-www-form-urlencoded' => TRUE,
      ),
    );
    $endpoint->resources = array(
      'comment' => array(
        'operations' => array(
          'create' => array(
            'enabled' => '1',
          ),
          'retrieve' => array(
            'enabled' => '1',
          ),
          'update' => array(
            'enabled' => '1',
          ),
          'delete' => array(
            'enabled' => '1',
          ),
          'index' => array(
            'enabled' => '1',
          ),
        ),
        'actions' => array(
          'countAll' => array(
            'enabled' => '1',
          ),
          'countNew' => array(
            'enabled' => '1',
          ),
        ),
      ),
      'file' => array(
        'operations' => array(
          'create' => array(
            'enabled' => '1',
          ),
          'retrieve' => array(
            'enabled' => '1',
          ),
          'delete' => array(
            'enabled' => '1',
          ),
          'index' => array(
            'enabled' => '1',
          ),
        ),
        'actions' => array(
          'create_raw' => array(
            'enabled' => '1',
          ),
        ),
      ),
      'node' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => '1',
          ),
          'create' => array(
            'enabled' => '1',
          ),
          'update' => array(
            'enabled' => '1',
          ),
          'delete' => array(
            'enabled' => '1',
          ),
          'index' => array(
            'enabled' => '1',
          ),
        ),
        'relationships' => array(
          'files' => array(
            'enabled' => '1',
          ),
          'comments' => array(
            'enabled' => '1',
          ),
        ),
      ),
      'system' => array(
        'actions' => array(
          'connect' => array(
            'enabled' => '1',
          ),
          'get_variable' => array(
            'enabled' => '1',
          ),
          'set_variable' => array(
            'enabled' => '1',
          ),
          'del_variable' => array(
            'enabled' => '1',
          ),
        ),
      ),
      'taxonomy_term' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => '1',
          ),
          'create' => array(
            'enabled' => '1',
          ),
          'update' => array(
            'enabled' => '1',
          ),
          'delete' => array(
            'enabled' => '1',
          ),
          'index' => array(
            'enabled' => '1',
          ),
        ),
        'actions' => array(
          'selectNodes' => array(
            'enabled' => '1',
          ),
        ),
      ),
      'taxonomy_vocabulary' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => '1',
          ),
          'create' => array(
            'enabled' => '1',
          ),
          'update' => array(
            'enabled' => '1',
          ),
          'delete' => array(
            'enabled' => '1',
          ),
          'index' => array(
            'enabled' => '1',
          ),
        ),
        'actions' => array(
          'getTree' => array(
            'enabled' => '1',
          ),
        ),
      ),
      'user' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => '1',
          ),
          'create' => array(
            'enabled' => '1',
          ),
          'update' => array(
            'enabled' => '1',
          ),
          'delete' => array(
            'enabled' => '1',
          ),
          'index' => array(
            'enabled' => '1',
          ),
        ),
        'actions' => array(
          'login' => array(
            'enabled' => '1',
            'settings' => array(
              'services' => array(
                'resource_api_version' => $version,
              ),
            ),
          ),
          'logout' => array(
            'enabled' => '1',
          ),
          'register' => array(
            'enabled' => '1',
          ),
        ),
        'targeted_actions' => array(
          'cancel' => array(
            'enabled' => 1,
          ),
          'password_reset' => array(
            'enabled' => 1,
          ),
          'resend_welcome_email' => array(
            'enabled' => 1,
          ),
        ),
      ),
      'services_test' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => '1',
            'settings' => array(
              'services' => array(
                'resource_api_version' => $version,
              ),
            ),
          ),
        ),
      ),
      'views' => array(
        'operations' => array(
          'retrieve' => array(
            'enabled' => '1',
          ),
        ),
      ),
    );
    $endpoint->debug = 0;
    $endpoint->export_type = FALSE;
    services_endpoint_save($endpoint);
    $endpoint = services_endpoint_load($endpoint->name);
    $this->assertTrue($endpoint->name == $edit['name'], 'Endpoint successfully created');
    return $endpoint;
  }

  /**
   * Performs a cURL exec with the specified options after calling curlConnect().
   *
   * @param $curl_options
   *   Custom cURL options.
   * @return
   *   Content returned from the exec.
   */
  protected function curlExec($curl_options, $redirect = FALSE) {
    // Some Curl options might leave the handle in a state where subsequent
    // request can cause warnings or even weird failures, so to be on the safe
    // side we reinitialize Curl for each request.
    $this->curlClose();

    $this->curlInitialize();

    // cURL incorrectly handles URLs with a fragment by including the
    // fragment in the request to the server, causing some web servers
    // to reject the request citing "400 - Bad Request". To prevent
    // this, we strip the fragment from the request.
    // TODO: Remove this for Drupal 8, since fixed in curl 7.20.0.
    if (!empty($curl_options[CURLOPT_URL]) && strpos($curl_options[CURLOPT_URL], '#')) {
      $original_url = $curl_options[CURLOPT_URL];
      $curl_options[CURLOPT_URL] = strtok($curl_options[CURLOPT_URL], '#');
    }

    $url = empty($curl_options[CURLOPT_URL]) ? curl_getinfo($this->curlHandle, CURLINFO_EFFECTIVE_URL) : $curl_options[CURLOPT_URL];

    if (!empty($curl_options[CURLOPT_POST])) {
      // This is a fix for the Curl library to prevent Expect: 100-continue
      // headers in POST requests, that may cause unexpected HTTP response
      // codes from some webservers (like lighttpd that returns a 417 error
      // code). It is done by setting an empty "Expect" header field that is
      // not overwritten by Curl.
      $curl_options[CURLOPT_HTTPHEADER][] = 'Expect:';
    }

    curl_setopt_array($this->curlHandle, $this->additionalCurlOptions + $curl_options);

    if (!$redirect) {
      // Reset headers, the session ID and the redirect counter.
      $this->session_id = NULL;
      $this->headers = array();
      $this->redirect_count = 0;
    }

    $content = curl_exec($this->curlHandle);
    $status = curl_getinfo($this->curlHandle, CURLINFO_HTTP_CODE);

    // cURL incorrectly handles URLs with fragments, so instead of
    // letting cURL handle redirects we take of them ourselves to
    // to prevent fragments being sent to the web server as part
    // of the request.
    // TODO: Remove this for Drupal 8, since fixed in curl 7.20.0.
    if (in_array($status, array(300, 301, 302, 303, 305, 307)) && $this->redirect_count < variable_get('simpletest_maximum_redirects', 5)) {
      if ($this->drupalGetHeader('location')) {
        $this->redirect_count++;
        $curl_options = array();
        $curl_options[CURLOPT_URL] = $this->drupalGetHeader('location');
        $curl_options[CURLOPT_HTTPGET] = TRUE;
        return $this->curlExec($curl_options, TRUE);
      }
    }

    $this->drupalSetContent($content, isset($original_url) ? $original_url : curl_getinfo($this->curlHandle, CURLINFO_EFFECTIVE_URL));

    // Analyze the method for log message.
    $method = '';
    if (!empty($curl_options[CURLOPT_NOBODY])) {
      $method = 'HEAD';
    }

    if (empty($method) && !empty($curl_options[CURLOPT_PUT])) {
      $method = 'PUT';
    }

    if (empty($method) && !empty($curl_options[CURLOPT_CUSTOMREQUEST])) {
      $method = $curl_options[CURLOPT_CUSTOMREQUEST];
    }

    if (empty($method)) {
      $method = empty($curl_options[CURLOPT_POSTFIELDS]) ? 'GET' : 'POST';
    }
    $message_vars = array(
      '!method' => $method,
      '@url' => isset($original_url) ? $original_url : $url,
      '@status' => $status,
      '!length' => format_size(drupal_strlen($this->drupalGetContent()))
    );
    $message = format_string('!method @url returned @status (!length).', $message_vars);
    $this->assertTrue($this->drupalGetContent() !== FALSE, $message, 'Browser');
    return $this->drupalGetContent();
  }
    /**
   * Default values of comment for creating.
   */
  public function getCommentValues($nid) {
    return array(
      'subject' => $this->randomString(),
      'comment_body' => array(
        LANGUAGE_NONE => array(
          array(
            'value' => $this->randomString(),
            'format' => filter_default_format(),
          )
        )
      ),
      'name' => $this->privileged_user->name,
      'language' => LANGUAGE_NONE,
      'nid' => $nid,
      'uid' => $this->privileged_user->uid,
      'cid' => NULL,
      'pid' => 0,
    );
  }
}