System.Globalization.Tests.CompareInfoMiscTests.SortKeyMiscTest C# (CSharp) Метод

        public void SortKeyMiscTest()
        {
            CompareInfo ci = new CultureInfo("en-US").CompareInfo;
            string s1 = "abc";
            string s2 = "ABC";

            SortKey sk1 = ci.GetSortKey(s1);
            SortKey sk2 = ci.GetSortKey(s1);

            SortKey sk3 = ci.GetSortKey(s2);
            SortKey sk4 = ci.GetSortKey(s2, CompareOptions.IgnoreCase);
            SortKey sk5 = ci.GetSortKey(s1, CompareOptions.IgnoreCase);

            Assert.Equal(sk2, sk1);
            Assert.Equal(sk2.GetHashCode(), sk1.GetHashCode());
            Assert.Equal(sk2.KeyData, sk1.KeyData);

            Assert.NotEqual(sk3, sk1);
            Assert.NotEqual(sk3.GetHashCode(), sk1.GetHashCode());
            Assert.NotEqual(sk3.KeyData, sk1.KeyData);

            Assert.NotEqual(sk4, sk3);
            Assert.NotEqual(sk4.GetHashCode(), sk3.GetHashCode());
            Assert.NotEqual(sk4.KeyData, sk3.KeyData);

            Assert.Equal(sk4, sk5);
            Assert.Equal(sk4.GetHashCode(), sk5.GetHashCode());
            Assert.Equal(sk4.KeyData, sk5.KeyData);

            Assert.Throws<ArgumentNullException>("source", () => ci.GetSortKey(null));
            Assert.Throws<ArgumentException>("options", () => ci.GetSortKey(s1, CompareOptions.Ordinal));
        }