public void TestReadChar()
        {
            var buffer = Encoding.ASCII.GetBytes("Hello  \tworld.!");
            var slice = new BufferSlice(buffer, 0, buffer.Length, buffer.Length);
            var reader = new BufferSliceReader(slice);

            Assert.Equal('H', reader.Read());
            Assert.Equal('e', reader.Current);
            Assert.Equal('l', reader.Peek);
        }