/**
* @param StepEvent $stepEvent
*/
public function stepAfter(StepEvent $stepEvent)
{
if ($stepEvent->getStep()->hasFailed() && $stepEvent->getStep()->getAction('seeNoDifferenceToReferenceImage')) {
/** @var WebDriver $stepWebDriver */
$stepWebDriver = $stepEvent->getTest()->getScenario()->current('modules')['WebDriver'];
$identifier = $stepEvent->getStep()->getArguments()[0];
$windowSize = $this->fileSystemUtil->getCurrentWindowSizeString($stepWebDriver);
$this->failedIdentifiers[] = array('identifier' => $identifier, 'windowSize' => $windowSize, 'failImage' => base64_encode(file_get_contents($this->fileSystemUtil->getFailImagePath($identifier, $windowSize, 'fail'))), 'diffImage' => base64_encode(file_get_contents($this->fileSystemUtil->getFailImagePath($identifier, $windowSize, 'diff'))), 'referenceImage' => base64_encode(file_get_contents($this->fileSystemUtil->getReferenceImagePath($identifier, $windowSize))));
}
}
/**
* Checks item in Memcached exists and the same as expected.
*
* @param string $referenceImageIdentifier
* @param null|string $selector
* @throws ModuleException
*/
public function seeNoDifferenceToReferenceImage($referenceImageIdentifier, $selector = null)
{
if ($selector === null) {
$selector = 'body';
}
$elements = $this->webDriver->_findElements($selector);
if (count($elements) == 0) {
throw new ElementNotFound($selector);
} elseif (count($elements) > 1) {
throw new ModuleException(__CLASS__, 'Multiple elements found for given selector "' . $selector . '" but need exactly one element!');
}
/** @var RemoteWebElement $element */
$image = $this->_createScreenshot($referenceImageIdentifier, reset($elements));
$windowSizeString = $this->moduleFileSystemUtil->getCurrentWindowSizeString($this->webDriver);
$referenceImagePath = $this->moduleFileSystemUtil->getReferenceImagePath($referenceImageIdentifier, $windowSizeString);
if (!file_exists($referenceImagePath)) {
// Ensure that the target directory exists
$this->moduleFileSystemUtil->createDirectoryRecursive(dirname($referenceImagePath));
copy($image->getImageFilename(), $referenceImagePath);
$this->currentTestCase->markTestIncomplete('Reference Image does not exist.
Test is skipeed but will now copy reference image to target directory...');
} else {
$referenceImage = new \Imagick($referenceImagePath);
/** @var \Imagick $comparedImage */
list($comparedImage, $difference) = $referenceImage->compareImages($image, \Imagick::METRIC_MEANSQUAREERROR);
$calculatedDifferenceValue = round((double) substr($difference, 0, 6) * 100, 2);
$this->currentTestCase->getScenario()->comment('Difference between reference and current image is around ' . $calculatedDifferenceValue . '%');
if ($calculatedDifferenceValue > $this->config['maxDifference']) {
$failImagePath = $this->moduleFileSystemUtil->getFailImagePath($referenceImageIdentifier, $windowSizeString, 'diff');
$this->moduleFileSystemUtil->createDirectoryRecursive(dirname($failImagePath));
$image->writeImage($this->moduleFileSystemUtil->getFailImagePath($referenceImageIdentifier, $windowSizeString, 'fail'));
$comparedImage->setImageFormat('png');
$comparedImage->writeImage($failImagePath);
$this->fail('Image does not match to the reference image.');
}
}
}
