/**
* Find an open port in a given range, trying several times.
* Return FALSE if no open port is found after a timeout (1 second by default)
*
* @param string $host
* @param integer $range_start
* @param integer $range_end
* @param integer $timeout
* @return integer|boolean
*/
public static function ephimeral_port($host, $range_start = 1000, $range_end = 5000, $timeout = 1000)
{
return Attempt::make(function () use($host, $range_start, $range_end) {
$port = rand($range_start, $range_end);
return Network::is_port_open($host, $port) ? $port : FALSE;
}, $timeout);
}
/**
* Perform a custom request on the phantomjs server, using curl
* @param string $command
* @param array $options
* @return mixed
*/
protected function call($command, array $options = array())
{
$curl = curl_init();
$options[CURLOPT_URL] = $this->command_url($command);
$options[CURLOPT_RETURNTRANSFER] = TRUE;
$options[CURLOPT_FOLLOWLOCATION] = TRUE;
curl_setopt_array($curl, $options);
$raw = '';
Attempt::make(function () use($curl, &$raw) {
$raw = trim(curl_exec($curl));
return curl_getinfo($curl, CURLINFO_HTTP_CODE) == 200;
});
$error = curl_error($curl);
$code = curl_getinfo($curl, CURLINFO_HTTP_CODE);
curl_close($curl);
if ($error) {
throw new Exception_Driver('Curl ":command" throws exception :error', array(':command' => $command, ':error' => $error));
}
if ($code != 200) {
throw new Exception_Driver('Unexpected response from the panthomjs for :command: :code', array(':command' => $command, ':code' => $code));
}
$result = json_decode($raw, TRUE);
return $result;
}
/**
* Oposite to the find method()
*
* @param string|array $selector
* @param array $filters
* @throws Functest_Exception_Found If element is found on the page
* @return Node $this
*/
public function not_present($selector, array $filters = array())
{
$locator = self::get_locator($selector, $filters);
$self = $this;
$not_found = Attempt::make(function () use($self, $locator) {
return !$self->all($locator)->first();
}, $this->next_wait_time());
$this->_next_wait_time = NULL;
if (!$not_found) {
throw new Exception_Found($locator, $this->driver());
}
return TRUE;
}
