/**
* Internal step definition to find exceptions, debugging() messages and PHP debug messages.
*
* Part of behat_hooks class as is part of the testing framework, is auto-executed
* after each step so no features will splicitly use it.
*
* @throws Exception Unknown type, depending on what we caught in the hook or basic \Exception.
* @see Moodle\BehatExtension\Tester\MoodleStepTester
*/
public function look_for_exceptions()
{
// Wrap in try in case we were interacting with a closed window.
try {
// Exceptions.
$exceptionsxpath = "//div[@data-rel='fatalerror']";
// Debugging messages.
$debuggingxpath = "//div[@data-rel='debugging']";
// PHP debug messages.
$phperrorxpath = "//div[@data-rel='phpdebugmessage']";
// Any other backtrace.
$othersxpath = "(//*[contains(., ': call to ')])[1]";
$xpaths = array($exceptionsxpath, $debuggingxpath, $phperrorxpath, $othersxpath);
$joinedxpath = implode(' | ', $xpaths);
// Joined xpath expression. Most of the time there will be no exceptions, so this pre-check
// is faster than to send the 4 xpath queries for each step.
if (!$this->getSession()->getDriver()->find($joinedxpath)) {
// Check if we have recorded any errors in driver process.
$phperrors = behat_get_shutdown_process_errors();
if (!empty($phperrors)) {
foreach ($phperrors as $error) {
$errnostring = behat_get_error_string($error['type']);
$msgs[] = $errnostring . ": " . $error['message'] . " at " . $error['file'] . ": " . $error['line'];
}
$msg = "PHP errors found:\n" . implode("\n", $msgs);
throw new \Exception(htmlentities($msg));
}
return;
}
// Exceptions.
if ($errormsg = $this->getSession()->getPage()->find('xpath', $exceptionsxpath)) {
// Getting the debugging info and the backtrace.
$errorinfoboxes = $this->getSession()->getPage()->findAll('css', 'div.alert-error');
// If errorinfoboxes is empty, try find alert-danger (bootstrap4) class.
if (empty($errorinfoboxes)) {
$errorinfoboxes = $this->getSession()->getPage()->findAll('css', 'div.alert-danger');
}
// If errorinfoboxes is empty, try find notifytiny (original) class.
if (empty($errorinfoboxes)) {
$errorinfoboxes = $this->getSession()->getPage()->findAll('css', 'div.notifytiny');
}
// If errorinfoboxes is empty, try find ajax/JS exception in dialogue.
if (empty($errorinfoboxes)) {
$errorinfoboxes = $this->getSession()->getPage()->findAll('css', 'div.moodle-exception-message');
// If ajax/JS exception.
if ($errorinfoboxes) {
$errorinfo = $this->get_debug_text($errorinfoboxes[0]->getHtml());
}
} else {
$errorinfo = $this->get_debug_text($errorinfoboxes[0]->getHtml()) . "\n" . $this->get_debug_text($errorinfoboxes[1]->getHtml());
}
$msg = "Moodle exception: " . $errormsg->getText() . "\n" . $errorinfo;
throw new \Exception(html_entity_decode($msg));
}
// Debugging messages.
if ($debuggingmessages = $this->getSession()->getPage()->findAll('xpath', $debuggingxpath)) {
$msgs = array();
foreach ($debuggingmessages as $debuggingmessage) {
$msgs[] = $this->get_debug_text($debuggingmessage->getHtml());
}
$msg = "debugging() message/s found:\n" . implode("\n", $msgs);
throw new \Exception(html_entity_decode($msg));
}
// PHP debug messages.
if ($phpmessages = $this->getSession()->getPage()->findAll('xpath', $phperrorxpath)) {
$msgs = array();
foreach ($phpmessages as $phpmessage) {
$msgs[] = $this->get_debug_text($phpmessage->getHtml());
}
$msg = "PHP debug message/s found:\n" . implode("\n", $msgs);
throw new \Exception(html_entity_decode($msg));
}
// Any other backtrace.
// First looking through xpath as it is faster than get and parse the whole page contents,
// we get the contents and look for matches once we found something to suspect that there is a backtrace.
if ($this->getSession()->getDriver()->find($othersxpath)) {
$backtracespattern = '/(line [0-9]* of [^:]*: call to [\\->&;:a-zA-Z_\\x7f-\\xff][\\->&;:a-zA-Z0-9_\\x7f-\\xff]*)/';
if (preg_match_all($backtracespattern, $this->getSession()->getPage()->getContent(), $backtraces)) {
$msgs = array();
foreach ($backtraces[0] as $backtrace) {
$msgs[] = $backtrace . '()';
}
$msg = "Other backtraces found:\n" . implode("\n", $msgs);
throw new \Exception(htmlentities($msg));
}
}
} catch (NoSuchWindow $e) {
// If we were interacting with a popup window it will not exists after closing it.
}
}
/**
* Before shutdown save last error entries, so we can fail the test.
*/
function behat_shutdown_function() {
// If any error found, then save it.
if ($error = error_get_last()) {
// Ignore E_WARNING, as they might come via ( @ )suppression and might lead to false failure.
if (isset($error['type']) && !($error['type'] & E_WARNING)) {
$errors = behat_get_shutdown_process_errors();
$errors[] = $error;
$errorstosave = json_encode($errors);
set_config('process_errors', $errorstosave, 'tool_behat');
}
}
}
