public void EnsureAllocatesSpan()
{
BufferWriter <PipeWriter> writer = new BufferWriter <PipeWriter>(Pipe.Writer);
writer.Ensure(10);
Assert.True(writer.Span.Length > 10);
Assert.Equal(new byte[] { }, Read());
}
public void BufferWriterCountsBytesCommitted()
{
BufferWriter <PipeWriter> writer = new BufferWriter <PipeWriter>(Pipe.Writer);
writer.Write(new byte[] { 1, 2, 3 });
Assert.Equal(0, writer.BytesCommitted);
writer.Commit();
Assert.Equal(3, writer.BytesCommitted);
writer.Ensure(10);
writer.Advance(10);
Assert.Equal(3, writer.BytesCommitted);
writer.Commit();
Assert.Equal(13, writer.BytesCommitted);
Pipe.Writer.FlushAsync().GetAwaiter().GetResult();
var readResult = Pipe.Reader.ReadAsync().GetAwaiter().GetResult();
// Consuming the buffer does not change BytesCommitted
Assert.Equal(13, readResult.Buffer.Length);
Assert.Equal(13, writer.BytesCommitted);
}
