test_scapy_can.py

test_scapy_can.py

#### Packet with big endian signals:
class testFrame4(Packet):
    fields_desc = [
        SignalField("sig0" ,default=0, start=1 , size=2 , fmt=">B"),
        SignalField("sig1" ,default=0, start=7 , size=6 , fmt=">B"),
        SignalField("sig2" ,default=0, start=15, size=11, fmt=">B"),
        SignalField("sig3" ,default=0, start=20, size=12, fmt=">B"),
        SignalField("sig4" ,default=0, start=24, size=9 , fmt=">B"),
        SignalField("sig5" ,default=0, start=50, size=3 , fmt=">B"),
        SignalField("sig6" ,default=0, start=53, size=3 , fmt=">B"),
        SignalField("sig7" ,default=0, start=47, size=10, fmt=">B"),
        SignalField("sig8" ,default=0, start=58, size=3 , fmt=">B"),
        SignalField("sig9" ,default=0, start=61, size=3 , fmt=">B"),
        SignalField("sig10",default=0, start=63, size=2 , fmt=">B")
    ]

    pkt = testFrame4()
    
    pkt.sig0 = 1
    pkt.sig1 = 35
    pkt.sig2 = 0
    pkt.sig3 = 2048
    pkt.sig4 = 256
    pkt.sig5 = 1
    pkt.sig6 = 0
    pkt.sig7 = 520
    pkt.sig8 = 0
    pkt.sig9 = 0
    pkt.sig10 = 0

    assert(pkt) == bytearray([141, 0, 16, 1, 0, 130, 1, 0])

#### Packet with big little signals:
class testFrame5(Packet):
    fields_desc = [
        SignalField("secSig1",  default=0, start=60, size=2 , fmt="<B"),
        SignalField("secSig2",  default=0, start=55, size=1 , fmt="<B"),
        SignalField("secSig3",  default=0, start=20, size=4 , fmt="<B"),
        SignalField("secSig4",  default=0, start=62, size=2 , fmt="<B"),
        SignalField("secSig5",  default=0, start=34, size=3 , fmt="<B"),
        SignalField("secSig6",  default=0, start=37, size=3 , fmt="<B"),
        SignalField("secSig7",  default=0, start=59, size=1 , fmt="<b"),
        SignalField("secSig8",  default=0, start=56, size=3 , fmt="<B"),
        SignalField("secSig9",  default=0, start=52, size=3 , fmt="<B"),
        SignalField("secSig10", default=0, start=8 , size=12, fmt="<B"),
        SignalField("secSig11", default=0, start=24, size=10, fmt="<b"),
        SignalField("secSig12", default=0, start=0 , size=8 , fmt="<B")
    ]
    pkt = testFrame5()
    
    pkt.secSig1  = 0
    pkt.secSig2  = 0
    pkt.secSig3  = 0
    pkt.secSig4  = 2
    pkt.secSig5  = 0
    pkt.secSig6  = 0
    pkt.secSig7  = 0
    pkt.secSig8  = 3
    pkt.secSig9  = 1
    pkt.secSig10 = 1280
    pkt.secSig11 = -144  # negative values may not be supported yet?
    pkt.secSig12 = 12
    
    assert(pkt) == bytearray([0x0c, 0x00, 0x05, 0x70, 0x03, 0x00, 0x10, 0x83])
    
    
class testFrame6(Packet):
    fields_desc = [
        SignalField("floatSignal2", default=0, start=32, size=32 fmt="<f"),
        SignalField("floatSignal1", default=0, start=7 , size=32 fmt=">f")
    ]
    
    pkt.floatSignal1 = 5.424999835668132e-05
    pkt.floatSignal2 = 6.176799774169922
    
    pkt = testFrame6()
    
    assert(pkt) == bytearray([0x38, 0x63, 0x8A, 0x7E, 0x58, 0xA8, 0xC5, 0x40])
    

could you please double check the second field. The first one is fine.

Found the bug
... was a copy paste error!

Everything is correct and works