System.Tests.StringTests.CompareOrdinal_Invalid C# (CSharp) Method

        public static void CompareOrdinal_Invalid()
        {
            // IndexA < 0 or IndexA > strA.Length
            Assert.Throws<ArgumentOutOfRangeException>("indexA", () => string.CompareOrdinal("a", -1, "bb", 0, 0));
            Assert.Throws<ArgumentOutOfRangeException>("indexA", () => string.CompareOrdinal("a", 6, "bb", 0, 0));

            // IndexB < 0 or IndexB > strB.Length
            Assert.Throws<ArgumentOutOfRangeException>("indexB", () => string.CompareOrdinal("a", 0, "bb", -1, 0)); // IndexB < 0
            Assert.Throws<ArgumentOutOfRangeException>("indexB", () => string.CompareOrdinal("a", 0, "bb", 3, 0)); // IndexB > strB.Length

            // Length < 0
            Assert.Throws<ArgumentOutOfRangeException>("length", () => string.CompareOrdinal("a", 0, "bb", 0, -1));

            // We must validate arguments before any short-circuiting is done (besides for nulls)
            Assert.Throws<ArgumentOutOfRangeException>("length", () => string.CompareOrdinal("foo", -1, "foo", -1, -1)); // length should be validated first
            Assert.Throws<ArgumentOutOfRangeException>("indexA", () => string.CompareOrdinal("foo", -1, "foo", -1, 0)); // then indexA
            Assert.Throws<ArgumentOutOfRangeException>("indexB", () => string.CompareOrdinal("foo", 0, "foo", -1, 0)); // then indexB
            Assert.Throws<ArgumentOutOfRangeException>("indexA", () => string.CompareOrdinal("foo", 4, "foo", 4, 0)); // indexA > strA.Length first
            Assert.Throws<ArgumentOutOfRangeException>("indexB", () => string.CompareOrdinal("foo", 3, "foo", 4, 0)); // then indexB > strB.Length
            Assert.Throws<ArgumentOutOfRangeException>("length", () => string.CompareOrdinal("foo", 0, "foo", 0, -1)); // early return should not kick in if length is invalid
        }