Throw a helpful exception if the AJAX timeout is missing due to a com…

…mon mistake in the configuration.
jhedstrom · Feb 5, 2019 · 9f34222 · 9f34222
1 parent 3836ccb
commit 9f34222
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/Drupal/DrupalExtension/Context/MinkContext.php b/src/Drupal/DrupalExtension/Context/MinkContext.php
@@ -152,7 +152,11 @@ function isAjaxing(instance) {
       );
     }());
 JS;
-        $result = $this->getSession()->wait(1000 * $this->getMinkParameter('ajax_timeout'), $condition);
+        $ajax_timeout = $this->getMinkParameter('ajax_timeout');
+        if ($ajax_timeout === NULL) {
+          throw new \Exception('No AJAX timeout has been defined. Please verify that "Drupal\MinkExtension" is configured in behat.yml (and not "Behat\MinkExtension").');
+        }
+        $result = $this->getSession()->wait(1000 * $ajax_timeout, $condition);
         if (!$result) {
             if ($event) {
                 /** @var \Behat\Behat\Hook\Scope\BeforeStepScope $event */