MAGETWO-54645: Smarter Cache Invalidation on Qty Change

Author: mslabko

app/code/Magento/CatalogInventory/Test/Unit/Model/Indexer/Stock/CacheCleanerTest.php

@@ -106,7 +106,9 @@ public function testClean($stockStatusBefore, $stockStatusAfter, $qtyAfter, $sto
         $this->eventManagerMock->expects($this->once())->method('dispatch')
             ->with('clean_cache_by_tags', ['object' => $this->cacheContextMock]);
 
-        $this->unit->clean([], function() {});
+        $callback = function () {
+        };
+        $this->unit->clean([], $callback);
     }
 
     /**
@@ -148,7 +150,9 @@ public function testNotCleanCache($stockStatusBefore, $stockStatusAfter, $qtyAft
         $this->cacheContextMock->expects($this->never())->method('registerEntities');
         $this->eventManagerMock->expects($this->never())->method('dispatch');
 
-        $this->unit->clean([], function() {});
+        $callback = function () {
+        };
+        $this->unit->clean([], $callback);
     }
 
     /**