Adds a trait for determining current scenario tags.

- Fixes #468

src/Drupal/DrupalExtension/Context/MinkContext.php

@@ -5,13 +5,16 @@
 use Behat\Behat\Context\TranslatableContext;
 use Behat\Mink\Exception\UnsupportedDriverActionException;
 use Behat\MinkExtension\Context\MinkContext as MinkExtension;
+use Drupal\DrupalExtension\ScenarioTagTrait;
 
 /**
  * Extensions to the Mink Extension.
  */
 class MinkContext extends MinkExtension implements TranslatableContext
 {
 
+    use ScenarioTagTrait;
+
   /**
    * Returns list of definition translation resources paths.
    *
@@ -92,7 +95,7 @@ public function assertEnterField($field, $value)
     public function beforeJavascriptStep($event)
     {
         /** @var \Behat\Behat\Hook\Scope\BeforeStepScope $event */
-        $tags = $event->getFeature()->getTags();
+        $tags = $this->getCurrentScenarioTags($event);
         if (!in_array('javascript', $tags)) {
             return;
         }
@@ -110,7 +113,7 @@ public function beforeJavascriptStep($event)
     public function afterJavascriptStep($event)
     {
         /** @var \Behat\Behat\Hook\Scope\BeforeStepScope $event */
-        $tags = $event->getFeature()->getTags();
+        $tags = $this->getCurrentScenarioTags($event);
         if (!in_array('javascript', $tags)) {
             return;
         }

src/Drupal/DrupalExtension/ScenarioTagTrait.php

@@ -0,0 +1,61 @@
+<?php
+
+namespace Drupal\DrupalExtension;
+
+use Behat\Behat\Hook\Scope\BeforeScenarioScope;
+use Behat\Behat\Hook\Scope\StepScope;
+use Behat\Gherkin\Node\ScenarioInterface;
+
+/**
+ * A workaround to discover the current scenario.
+ *
+ * @see https://github.com/Behat/Behat/issues/653
+ * @see https://github.com/Behat/Behat/issues/650
+ *
+ * The solution is documented in this issue: https://github.com/Behat/Behat/issues/703#issuecomment-86687563
+ *
+ * @package Drupal\DrupalExtension
+ */
+trait ScenarioTagTrait
+{
+
+    /**
+     * The registered scenario.
+     *
+     * @var ScenarioInterface
+     */
+    protected $currentScenario;
+
+    /**
+     * Register the scenario.
+     *
+     * @param BeforeScenarioScope $scope
+     *
+     * @BeforeScenario
+     */
+    public function registerScenario(BeforeScenarioScope $scope)
+    {
+        $this->currentScenario = $scope->getScenario();
+    }
+
+    /**
+     * @return ScenarioInterface
+     */
+    protected function getScenario()
+    {
+        return $this->currentScenario;
+    }
+
+    /**
+     * Get all tags for the current scenario.
+     *
+     * @param StepScope $scope
+     * @return string[]
+     */
+    protected function getCurrentScenarioTags(StepScope $scope)
+    {
+        $featureTags = $scope->getFeature()->getTags();
+        $scenarioTags = $this->getScenario()->getTags();
+        return array_merge($featureTags, $scenarioTags);
+    }
+}