System.Net.Http.Headers.ProductHeaderValue.GetHashCode C# (CSharp) Method

        public override int GetHashCode()
        {
            int result = StringComparer.OrdinalIgnoreCase.GetHashCode(_name);

            if (!string.IsNullOrEmpty(_version))
            {
                result = result ^ StringComparer.OrdinalIgnoreCase.GetHashCode(_version);
            }

            return result;
        }

        public void GetHashCode_UseSameAndDifferentRanges_SameOrDifferentHashCodes()
        {
            ProductHeaderValue product1 = new ProductHeaderValue("custom", "1.0");
            ProductHeaderValue product2 = new ProductHeaderValue("custom");
            ProductHeaderValue product3 = new ProductHeaderValue("CUSTOM", "1.0");
            ProductHeaderValue product4 = new ProductHeaderValue("RTA", "x11");
            ProductHeaderValue product5 = new ProductHeaderValue("rta", "X11");

            Assert.NotEqual(product1.GetHashCode(), product2.GetHashCode());
            Assert.Equal(product1.GetHashCode(), product3.GetHashCode());
            Assert.NotEqual(product1.GetHashCode(), product4.GetHashCode());
            Assert.Equal(product4.GetHashCode(), product5.GetHashCode());
        }