MTA-1284: Implement mechanism of cleaning up all data after scenario execution

- CR Changes

Author: orykh

CHANGELOG.md

@@ -1,3 +1,5 @@
+* Added mechanism of cleaning up all data after scenario execution
+
 1.0.0-rc.23
 =============
 * Added an ability to merge form mapping from different modules

Magento/Mtf/TestCase/Scenario.php

@@ -71,17 +71,18 @@ protected function executeScenario()
     }
 
     /**
-     * Executed steps cleanup after test.
+     * Run with Variations Iterator
      *
-     * @return mixed
+     * @param \PHPUnit_Framework_TestResult $result
+     * @return \PHPUnit_Framework_TestResult
      */
-    protected function runTest()
+    public function run(\PHPUnit_Framework_TestResult $result = null)
     {
-        $testResult = parent::runTest();
+        $result = parent::run($result);
 
         $this->runStepsCleanup();
 
-        return $testResult;
+        return $result;
     }
 
     /**