#14020-Cart-Sales-Rule-with-negated-condition-over-special-price-does-not-work-for-configurable-products.

Fixed mock objects comparison

Author: novikor

app/code/Magento/ConfigurableProduct/Test/Unit/Plugin/SalesRule/Model/Rule/Condition/ProductTest.php

@@ -161,7 +161,7 @@ public function testChildIsUsedForValidation()
             ->willReturn([$childItem]);
         $item->expects($this->once())
             ->method('setProduct')
-            ->with($simpleProductMock);
+            ->with($this->identicalTo($simpleProductMock));
 
         $this->validator->setAttribute('special_price');