REST API: Fix error in Request tests.

On the 21st of November, 2014, I committed tests for WP_REST_Request
to the API plugin. Although I didn't realise at the time, I was
causing my future self to go through hours of sufferring.

Unfortunately, I forgot to call parent::setUp() which would break
the tests in subtle ways in the future and would ruin the good part
of my day.

Let this be a warning to all of you who write future unit tests.

See https://github.com/WP-API/WP-API/commit/f0396be17e1dd312065a2382e4e8a1361c1eb634
for the original commit.


git-svn-id: https://develop.svn.wordpress.org/trunk@36678 602fd350-edb4-49c9-b593-d223f7449a82

tests/phpunit/tests/rest-api/rest-request.php

@@ -11,6 +11,8 @@
  */
 class Tests_REST_Request extends WP_UnitTestCase {
 	public function setUp() {
+		parent::setUp();
+
 		$this->request = new WP_REST_Request();
 	}