minor symfony#12652 [HttpFoundation] [Hackday] symfony#9942 test: Request::getContent() for null value (skler)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes symfony#12652).

Discussion
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[HttpFoundation] [Hackday] symfony#9942 test: Request::getContent() for null value

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | symfony#9942
| License       | MIT
| Doc PR        |

Implementing test for issue symfony#9942 to confirm that the bug is already fixed. It's possibile to close the issue.

Thanks also to @baiolo, @Andyroid1978 for contributions at HackDay of the SymfonyConf

Commits
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0b9f310 [HttpFoundation] [Hackday] symfony#9942 test: Request::getContent() for null value

Author: fabpot

src/Symfony/Component/HttpFoundation/Tests/RequestTest.php

@@ -921,6 +921,13 @@ public function testGetContentReturnsResource()
         $this->assertTrue(feof($retval));
     }
 
+    public function testEmptyStringContentReturns()
+    {
+        $req = Request::create('test');
+
+        $this->assertEquals('', $req->getContent());
+    }
+
     /**
      * @expectedException \LogicException
      * @dataProvider getContentCantBeCalledTwiceWithResourcesProvider