Apply is_null

doctrine · Jan 2, 2018 · 85ab80a · 85ab80a
1 parent d1e561e
commit 85ab80a
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/tests/Doctrine/Tests/OrmFunctionalTestCase.php b/tests/Doctrine/Tests/OrmFunctionalTestCase.php
@@ -684,15 +684,15 @@ protected function getEntityManager(Connection $connection = null, MappingDriver
         // NOTE: Functional tests use their own shared metadata cache, because
         // the actual database platform used during execution has effect on some
         // metadata mapping behaviors (like the choice of the ID generation).
-        if (is_null(self::$metadataCacheImpl)) {
+        if (null === self::$metadataCacheImpl) {
             if (isset($GLOBALS['DOCTRINE_CACHE_IMPL'])) {
                 self::$metadataCacheImpl = new $GLOBALS['DOCTRINE_CACHE_IMPL'];
             } else {
                 self::$metadataCacheImpl = new ArrayCache();
             }
         }
 
-        if (is_null(self::$queryCacheImpl)) {
+        if (null === self::$queryCacheImpl) {
             self::$queryCacheImpl = new ArrayCache();
         }