System.SpanTests.ReadOnlySpanTests.StringSliceIntRangeChecked C# (CSharp) Method

        public static void StringSliceIntRangeChecked()
        {
            string s = "Hello";
            Assert.Throws<ArgumentOutOfRangeException>(() => s.Slice(-1).DontBox());
            Assert.Throws<ArgumentOutOfRangeException>(() => s.Slice(s.Length + 1).DontBox());
            Assert.Throws<ArgumentOutOfRangeException>(() => s.Slice(-1, 0).DontBox());
            Assert.Throws<ArgumentOutOfRangeException>(() => s.Slice(0, s.Length + 1).DontBox());
            Assert.Throws<ArgumentOutOfRangeException>(() => s.Slice(2, s.Length + 1 - 2).DontBox());
            Assert.Throws<ArgumentOutOfRangeException>(() => s.Slice(s.Length + 1, 0).DontBox());
            Assert.Throws<ArgumentOutOfRangeException>(() => s.Slice(s.Length, 1).DontBox());
        }
    }