/**
* @param string $filename Snapshot filename. Should be unique per test
* @param string $logDir Directory to write snapshots into
* @param UriInterface|string|null $base Resolve all relative links with this base uri
*/
public function saveSessionSnapshot($filename, $logDir, $base = null)
{
if (is_dir($logDir) && is_writable($logDir)) {
if ($this->currentSession instanceof CrawlerSession) {
$this->currentSession->saveHtml("{$logDir}/{$filename}.html", $base);
}
if ($this->currentSession instanceof BrowserSession) {
$this->currentSession->saveScreenshot("{$logDir}/{$filename}.png");
}
} else {
throw new InvalidArgumentException(sprintf('Make sure directory %s exists and is writable', $logDir));
}
}