System.IO.Tests.WriteTests.NegativeCount C# (CSharp) Method

        public void NegativeCount()
        {
            char[] chArr = setupArray();

            // [] Exception if count is negative
            Stream ms = CreateStream();
            StreamWriter sw = new StreamWriter(ms);

            Assert.Throws<ArgumentOutOfRangeException>(() => sw.Write(chArr, 0, -1));
            sw.Dispose();
        }