System.Text.UTF8Encoding.GetCharCount C# (CSharp) Method

        public unsafe override int GetCharCount(byte* bytes, int count)
        {
            throw null;
        }

 public void PosTest2()
 {
     Byte[] bytes = new Byte[] { };
     UTF8Encoding utf8 = new UTF8Encoding();
     int charCount = utf8.GetCharCount(bytes, 0, 0);
     Assert.Equal(0, charCount);
 }