minor #10956 [Validator] Fixed StaticMethodLoaderTest on systems that don't have E_STRICT enabled by default (webmozart)

This PR was merged into the 2.3 branch.

Discussion
----------

[Validator] Fixed StaticMethodLoaderTest on systems that don't have E_STRICT enabled by default

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

Commits
-------

a470ae2 [Validator] Fixed StaticMethodLoader on systems that don't have E_STRICT enabled by default

Author: fabpot

Tests/Mapping/Loader/StaticMethodLoaderTest.php

@@ -17,6 +17,18 @@
 
 class StaticMethodLoaderTest extends \PHPUnit_Framework_TestCase
 {
+    private $errorLevel;
+
+    protected function setUp()
+    {
+        $this->errorLevel = error_reporting();
+    }
+
+    protected function tearDown()
+    {
+        error_reporting($this->errorLevel);
+    }
+
     public function testLoadClassMetadataReturnsTrueIfSuccessful()
     {
         $loader = new StaticMethodLoader('loadMetadata');
@@ -78,6 +90,8 @@ public function testLoadClassMetadataInAbstractClasses()
 
     public function testLoadClassMetadataIgnoresAbstractMethods()
     {
+        error_reporting(E_ALL | E_STRICT);
+
         $loader = new StaticMethodLoader('loadMetadata');
         $caught = false;
         try {