/**
* Runs a student's solution by invoking PHP via the `php-cgi` binary, populating all the super globals with
* the information from the request objects returned from the exercise. The exercise can return multiple
* requests so the solution will be invoked for however many requests there are.
*
* Running only runs the student's solution, the reference solution is not run and no verification is performed,
* the output of the student's solution is written directly to the output.
*
* Events dispatched (for each request):
*
* * cgi.run.student-execute.pre
* * cgi.run.student.executing
*
* @param Input $input The command line arguments passed to the command.
* @param OutputInterface $output A wrapper around STDOUT.
* @return bool If the solution was successfully executed, eg. exit code was 0.
*/
public function run(Input $input, OutputInterface $output)
{
$this->eventDispatcher->dispatch(new ExerciseRunnerEvent('cgi.run.start', $this->exercise, $input));
$success = true;
foreach ($this->exercise->getRequests() as $i => $request) {
$event = $this->eventDispatcher->dispatch(new CgiExecuteEvent('cgi.run.student-execute.pre', $request));
$process = $this->getProcess($input->getArgument('program'), $event->getRequest());
$output->writeTitle("Request");
$output->emptyLine();
$output->write($this->requestRenderer->renderRequest($request));
$output->writeTitle("Output");
$output->emptyLine();
$process->start();
$this->eventDispatcher->dispatch(new CgiExecuteEvent('cgi.run.student.executing', $request, ['output' => $output]));
$process->wait(function ($outputType, $outputBuffer) use($output) {
$output->write($outputBuffer);
});
$output->emptyLine();
if (!$process->isSuccessful()) {
$success = false;
}
$output->lineBreak();
}
$this->eventDispatcher->dispatch(new ExerciseRunnerEvent('cgi.run.finish', $this->exercise, $input));
return $success;
}
/**
* Render the details of each failed request including the mismatching headers and body.
*
* @param ResultsRenderer $renderer
* @return string
*/
public function render(ResultsRenderer $renderer)
{
$results = array_filter($this->result->getResults(), function (ResultInterface $result) {
return $result instanceof FailureInterface;
});
$output = '';
if (count($results)) {
$output .= $renderer->center("Some requests to your solution produced incorrect output!\n");
}
foreach ($results as $key => $request) {
$output .= $renderer->lineBreak();
$output .= "\n";
$output .= $renderer->style(sprintf('Request %d', $key + 1), ['bold', 'underline', 'blue']);
$output .= ' ' . $renderer->style(' FAILED ', ['bg_red', 'bold']) . "\n\n";
$output .= "Request Details:\n\n";
$output .= $this->requestRenderer->renderRequest($request->getRequest()) . "\n";
$output .= $renderer->renderResult($request) . "\n";
}
return $output;
}
