fix failing test in Windows env

tests/framework/base/ModuleTest.php

@@ -19,7 +19,7 @@ class ModuleTest extends TestCase
     {
         $module = new TestModule('test');
         $this->assertEquals('yiiunit\framework\base\controllers', $module->controllerNamespace);
-        $this->assertEquals(__DIR__ . '/controllers', $module->controllerPath);
+        $this->assertEquals(__DIR__ . DIRECTORY_SEPARATOR . 'controllers', str_replace(['/','\\'], DIRECTORY_SEPARATOR , $module->controllerPath));
     }
 }