public void SequenceLongerThanPayloadLengthWorks()
{
var maskingKey = WebSocketHeader.GenerateMaskingKey();
var payloadString = "This is a test payload.";
var payload = GenerateMaskedPayload(payloadString, maskingKey);
var encoder = new WebSocketPayloadReader(new WebSocketHeader(true, WebSocketOpcode.Binary, true, (ulong)payload.Length, maskingKey));
var first = new TestSequenceSegment(payload);
var last = first.AddSegment(new byte[64]);
var sequence = new ReadOnlySequence <byte>(first, 0, last, last.Memory.Length);
SequencePosition pos = default;
encoder.TryParseMessage(in sequence, ref pos, ref pos, out var outputSequence);
Assert.Equal(pos, sequence.GetPosition(payload.Length));
Assert.Equal(payloadString, Encoding.UTF8.GetString(outputSequence.First.ToArray()));
}
private ReadOnlySequence <byte> SegmentArray(byte[] data, int numSegments)
{
TestSequenceSegment currentSegment = null;
TestSequenceSegment firstSegment = null;
var stride = data.Length / numSegments;
var totalConsumed = 0;
for (var i = 0; i < data.Length - stride; i += stride)
{
var slice = new byte[stride];
Array.Copy(data, i, slice, 0, stride);
if (currentSegment == null)
{
currentSegment = new TestSequenceSegment(slice);
firstSegment = currentSegment;
}
else
{
currentSegment = currentSegment.AddSegment(slice);
}
totalConsumed += stride;
}
if (totalConsumed < data.Length)
{
var sliceLength = data.Length - totalConsumed;
var finalSlice = new byte[sliceLength];
Array.Copy(data, totalConsumed, finalSlice, 0, sliceLength);
currentSegment = currentSegment.AddSegment(finalSlice);
}
return(new ReadOnlySequence <byte>(firstSegment, 0, currentSegment, currentSegment.Memory.Length));
}
