public void CalculateNewQualityValue_DifferentParameters_ReturnGoodResult(string itemName, int itemSellIn, int itemQuality, int expectedItemQualityResult) { GildedRose gildeRose = new GildedRose(Items); int result = gildeRose.CalculateNewQualityValue(itemName, itemQuality, itemSellIn); Assert.AreEqual(expectedItemQualityResult, result, $"CalculateNewQualityValue(): expected {expectedItemQualityResult}; got {result}; parameters ( itemName {itemName}; itemQuality {itemQuality}; itemSellIn {itemSellIn} )"); }