[#6391] Add small explanation

wouterj · wouterj · commit 4186c32ba5ed · 2016-05-21T11:05:40.000+02:00
diff --git a/cookbook/testing/doctrine.rst b/cookbook/testing/doctrine.rst
@@ -61,7 +61,8 @@ which makes all of this quite easy::
         protected function tearDown()
         {
             parent::tearDown();
+
             $this->em->close();
-            $this->em = null;
+            $this->em = null; // avoid memory leaks
         }
     }

Original file line number	Diff line number	Diff line change
`@@ -61,7 +61,8 @@ which makes all of this quite easy::`
`61`	`61`	`protected function tearDown()`
`62`	`62`	`{`
`63`	`63`	`parent::tearDown();`
	`64`	`+`
`64`	`65`	`$this->em->close();`
`65`		`- $this->em = null;`
	`66`	`+ $this->em = null; // avoid memory leaks`
`66`	`67`	`}`
`67`	`68`	`}`