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MDL-41988 behat: improvements to spin

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Sam Hemelryk 2013-09-26 13:31:52 +12:00
parent 7bd5d84fd8
commit 8e5f86bcb3
1 changed files with 22 additions and 14 deletions
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36
lib/behat/behat_base.php
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@ -241,48 +241,56 @@ class behat_base extends Behat\MinkExtension\Context\RawMinkContext {
* closure exception will be used, but you must provide an exception if the closure does not throws
* an exception.
*
* @throws Exception If it timeouts without receiving something != false from the closure
* @param Closure $lambda The function to execute.
* @param mixed $args Arguments to pass to the closure
* @param int $timeout Timeout
* @param Exception $exception The exception to throw in case it time outs.
* @throws Exception If it timeouts without receiving something != false from the closure
* @param Function|array|string $lambda The function to execute or an array passed to call_user_func (maps to a class method)
* @param mixed $args Arguments to pass to the closure
* @param int $timeout Timeout in seconds
* @param Exception $exception The exception to throw in case it time outs.
* @param bool $microsleep If set to true it'll sleep micro seconds rather than seconds.
* @return mixed The value returned by the closure
*/
protected function spin($lambda, $args = false, $timeout = false, $exception = false) {
protected function spin($lambda, $args = false, $timeout = false, $exception = false, $microsleep = false) {
// Using default timeout which is pretty high.
if (!$timeout) {
$timeout = self::TIMEOUT;
}
if ($microsleep) {
// Will sleep 1/10th of a second by default for self::TIMEOUT seconds.
$loops = $timeout * 10;
} else {
// Will sleep for self::TIMEOUT seconds.
$loops = $timeout;
}
for ($i = 0; $i < $timeout; $i++) {
for ($i = 0; $i < $loops; $i++) {
// We catch the exception thrown by the step definition to execute it again.
try {
// We don't check with !== because most of the time closures will return
// direct Behat methods returns and we are not sure it will be always (bool)false
// if it just runs the behat method without returning anything $return == null.
if ($return = $lambda($this, $args)) {
if ($return = call_user_func($lambda, $this, $args)) {
return $return;
}
} catch (Exception $e) {
// We would use the first closure exception if no exception has been provided.
if (!$exception) {
$exception = $e;
}
// We wait until no exception is thrown or timeout expires.
continue;
}
sleep(1);
if ($microsleep) {
usleep(100000);
} else {
sleep(1);
}
}
// Using coding_exception as is a development issue if no exception has been provided.
if (!$exception) {
$exception = new coding_exception('spin method requires an exception if the closure doesn\'t throw an exception itself');
$exception = new coding_exception('spin method requires an exception if the callback does not throw an exception');
}
// Throwing exception to the user.