public void WriteAsciiNoValidationWritesOnlyOneBytePerChar(string input)
{
// WriteAscii doesn't validate if characters are in the ASCII range
// but it shouldn't produce more than one byte per character
var writerBuffer = _pipe.Writer.Alloc();
var writer = new WritableBufferWriter(writerBuffer);
PipelineExtensions.WriteAsciiNoValidation(ref writer, input);
writerBuffer.FlushAsync().GetAwaiter().GetResult();
var reader = _pipe.Reader.ReadAsync().GetAwaiter().GetResult();
Assert.Equal(input.Length, reader.Buffer.Length);
}
public void EncodesAsAscii(string input, byte[] expected)
{
var writerBuffer = _pipe.Writer.Alloc();
var writer = new WritableBufferWriter(writerBuffer);
PipelineExtensions.WriteAsciiNoValidation(ref writer, input);
writerBuffer.FlushAsync().GetAwaiter().GetResult();
var reader = _pipe.Reader.ReadAsync().GetAwaiter().GetResult();
if (expected.Length > 0)
{
AssertExtensions.Equal(
expected,
reader.Buffer.ToArray());
}
else
{
Assert.Equal(0, reader.Buffer.Length);
}
}
public void WriteAsciiNoValidation()
{
const byte maxAscii = 0x7f;
var writerBuffer = _pipe.Writer.Alloc();
var writer = new WritableBufferWriter(writerBuffer);
for (var i = 0; i < maxAscii; i++)
{
PipelineExtensions.WriteAsciiNoValidation(ref writer, new string((char)i, 1));
}
writerBuffer.FlushAsync().GetAwaiter().GetResult();
var reader = _pipe.Reader.ReadAsync().GetAwaiter().GetResult();
var data = reader.Buffer.Slice(0, maxAscii).ToArray();
for (var i = 0; i < maxAscii; i++)
{
Assert.Equal(i, data[i]);
}
}
public void WritesAsciiAcrossBlockBoundaries(int stringLength, int gapSize)
{
var testString = new string(' ', stringLength);
var writerBuffer = _pipe.Writer.Alloc(100);
var writer = new WritableBufferWriter(writerBuffer);
// almost fill up the first block
var spacer = new byte[writer.Span.Length - gapSize];
writer.Write(spacer);
Assert.Equal(gapSize, writer.Span.Length);
var bufferLength = writer.Span.Length;
PipelineExtensions.WriteAsciiNoValidation(ref writer, testString);
Assert.NotEqual(bufferLength, writer.Span.Length);
writerBuffer.FlushAsync().GetAwaiter().GetResult();
var reader = _pipe.Reader.ReadAsync().GetAwaiter().GetResult();
var written = reader.Buffer.Slice(spacer.Length, stringLength);
Assert.False(written.IsSingleSpan, "The buffer should cross spans");
AssertExtensions.Equal(Encoding.ASCII.GetBytes(testString), written.ToArray());
}