System.Text.Tests.StringBuilderTests.Append_CharPointer C# (CSharp) Method

        public static unsafe void Append_CharPointer(string original, char[] charArray, int valueCount, string expected)
        {
            fixed (char* value = charArray)
            {
                var builder = new StringBuilder(original);
                builder.Append(value, valueCount);
                Assert.Equal(expected, builder.ToString());
            }
        }