public void TryExtract_YieldsFalse_IfSTXIsMissing()
{
FrameExtractor fex = new FrameExtractor();
var data = new byte[] { 0x01 /* 1 Byte Payload */,
0x01 /* Connection attempt */,
// We have no additional data.
0x03 /*ETX*/ };
Assert.True(fex.TryExtract(data, 3).success == FrameExtractor.ResultState.MalformedPacket);
}
public void TryExtract_YieldsTrue_ForWellformedFrame()
{
FrameExtractor fex = new FrameExtractor();
var data = new byte[] { 0x02 /*STX*/,
0x01 /* 1 Byte Payload */,
0x01 /* Connection attempt */,
// We have no additional data.
0x03 /*ETX*/ };
Assert.True(fex.TryExtract(data, 4).success == FrameExtractor.ResultState.Ok);
}
public void TryExtract_YieldsFalse_IfLengthIsWrong()
{
FrameExtractor fex = new FrameExtractor();
var data = new byte[] { 0x02 /*STX*/,
0x11 /* 1 Byte Payload */,
0x01 /* Connection attempt */,
// We have no additional data.
0x03 /*ETX*/ };
Assert.True(fex.TryExtract(data, 4).success == FrameExtractor.ResultState.MissingData);
}
public void TryExtract_ExtractsPacketType()
{
FrameExtractor fex = new FrameExtractor();
var data = new byte[] { 0x02 /*STX*/,
0x01 /* 1 Byte Payload */,
0x01 /* Connection attempt */,
// We have no additional data.
0x03 /*ETX*/ };
Assert.Equal(fex.TryExtract(data, 4).frame.frameType, FrameType.Connect);
}
public void TryExtract_YieldsFalse_IfDataIsMissingInMultiBytePacket()
{
FrameExtractor fex = new FrameExtractor();
var data = new byte[] { 0x02 /*STX*/,
0x81 /* Payload > 127 Byte, but upper bit is 1 */,
0x02 /* Payload > 127+1 Byte, but upper bit is 1 */,
0x01 /* Connection attempt */,
// We have no additional data.
0x03 /*ETX*/ };
Assert.True(fex.TryExtract(data, 5).success == FrameExtractor.ResultState.MissingData);
}
public void TryExtract_ExtractsData()
{
FrameExtractor fex = new FrameExtractor();
var data = new byte[] { 0x02 /*STX*/,
0x05 /* 1 Byte Payload */,
0x01 /* Connection attempt */,
0x01, 0x02, 0x03, 0x04,
0x03 /*ETX*/ };
Assert.True(fex.TryExtract(data, 8).frame
.payload
.SequenceEqual(new byte[] { 0x01, 0x02, 0x03, 0x04 }));
}
public void CanExtract_FrameBuilderOutput()
{
FrameBuilder blder = new FrameBuilder();
blder.WriteByte(0x44); //Protocol Version 1
// empty client id for now
blder.WriteArray(new byte[16]);
blder.WriteMultiByte(0); // no secdata
blder.WriteMultiByte(0); // no lastwill channel
blder.WriteMultiByte(0); // no lastwill data
var theFrame = blder.Build(FrameType.Connect);
FrameExtractor fex = new FrameExtractor();
Assert.True(fex.TryExtract(theFrame, 23).success == FrameExtractor.ResultState.Ok);
}
public void TryExtract_ExtractsCorrectAmountOfData_ForMultiBytePacket()
{
FrameExtractor fex = new FrameExtractor();
var data = new byte[] { 0x02 /*STX*/,
0x81 /* Payload > 127 Byte, but upper bit is 1 */,
0x01 /* Payload > 128+1 Byte, but upper bit is 0*/,
0x01 /* Connection attempt */,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 32
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 64
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 96
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 128
0x03 /*ETX*/ };
Assert.Equal(fex.TryExtract(data, data.Length).frame.payload.Length, 128);
}
public void TryExtract_YieldsTrue_ForWellFormedMultiBytePacket()
{
FrameExtractor fex = new FrameExtractor();
var data = new byte[] { 0x02 /*STX*/,
0x81 /* Payload > 127 Byte, but upper bit is 1 */,
0x01 /* Payload > 128+1 Byte, but upper bit is 0*/,
0x01 /* Connection attempt */,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 32
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 64
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 96
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, // 128
0x03 /*ETX*/ };
Assert.True(fex.TryExtract(data, data.Length).success == FrameExtractor.ResultState.Ok);
}