takeScreenshotAfterFailedStep.php

<?php

class FeatureContext extends MinkContext {

    /**
     * Take screenshot when step fails. Works only with Selenium2Driver.
     * Screenshot is saved at [Date]/[Feature]/[Scenario]/[Step].jpg
     *
     * @AfterStep
     */
    public function takeScreenshotAfterFailedStep(StepEvent $event) {
        if ($event->getResult() === StepEvent::FAILED) {
            $driver = $this->getSession()->getDriver();
            $step = $event->getStep();
            $path = array(
//              'date' => date("Ymd-Hi"),
                'feature' => $step->getParent()->getFeature()->getTitle(),
                'scenario' => $step->getParent()->getTitle(),
                'step' => $step->getType() . ' ' . $step->getText()
            );
            $path = preg_replace('/[^\-\.\w]/', '_', $path);
            $imgBase = $this->kernel->getContainer()->getParameter('behat_screenshot_dir') ?: '/tmp/behat';
            $htmlBase = $this->kernel->getContainer()->getParameter('behat_response_dir') ?: '/tmp/behat';
            $filename = implode(':', $path);

            printf('Saving response: "%s"', $filename);

            // Create directories if needed
          if (!@is_dir($htmlBase)) {
              @mkdir($htmlBase, 0775, TRUE);
          }
          if (!@is_dir($imgBase)) {
              @mkdir($imgBase, 0775, TRUE);
          }

          file_put_contents($htmlBase . '/' . $filename. '.html', $this->getSession()->getPage()->getContent());

            if ($driver instanceof Selenium2Driver) {
                try{
                    file_put_contents($imgBase . '/' . $filename. '.png', $driver->getScreenshot());
                }catch (\Exception $e) {
                    pritnf('Unable to save image');
                }
            }
        }
    }
}