private bool IsValidChecksum(int messageEndIndex) { var checksum = CoderHelper.CalculateChecksum(this.currentBuffer, 0, messageEndIndex - 1); byte messageChecksum = this.currentBuffer[messageEndIndex - 1]; return(checksum == messageChecksum); }
public void TestMessageChecksum() { byte[] bytes = new byte[] { 4, 6, 4, 6, 6, 46, 6, 34, 64, 2, 64, 62, 47, 27, 247, 4, 6, 4, 6, 6, 46, 6, 34, 64, 2, 64, 62, 47, 27, 247 }; byte[] bigBytes = new byte[8 * 1024]; Array.Copy(bytes, bigBytes, bytes.Length); var calculatedChecksum = CoderHelper.CalculateChecksum(bytes, 0, bytes.Length); var newLength = CoderHelper.AddChecksum(bigBytes, 0, bytes.Length) + bytes.Length; byte checksumInBigBytes = bigBytes[bytes.Length]; Assert.AreEqual(checksumInBigBytes, calculatedChecksum); var writer = new MessageStreamWriter(); var reader = new MessageStreamReader(); var loginRequest = new LoginRequest() { accessToken = "alsdjflakjsdf", username = "******" }; var matchRequest = new MatchRequest() { value1 = 1, value2 = 2, value3 = 3, value4 = 4 }; writer.Write(loginRequest); writer.Write(matchRequest); writer.Use((buffer, len) => { reader.Add(buffer, len); var message = reader.Decode(); Assert.IsTrue(message.Value.Is(200)); Assert.AreEqual(loginRequest, message.Value.Parse <LoginRequest>()); message = reader.Decode(); Assert.IsTrue(message.Value.Is(201)); Assert.AreEqual(matchRequest, message.Value.Parse <MatchRequest>()); writer.DidWrite(len); }); writer.Write(loginRequest); writer.Write(matchRequest); writer.currentBuffer[0] = 23; writer.Use((buffer, len) => { reader.Add(buffer, len); var message = reader.Decode(); Assert.IsFalse(message.HasValue); Assert.IsTrue(message == null); message = reader.Decode(); Assert.IsTrue(message.Value.Is(201)); Assert.AreEqual(matchRequest, message.Value.Parse <MatchRequest>()); writer.DidWrite(len); }); }