def test_is_valid5():
"""test for having invalid 32bit FCS field"""
genericframe = GenericFrame()
genericframe.parse(b'\x00')
assert genericframe.is_valid() is False
def test_set_address1():
"""setting an arbitary 8bit address with clear MSB should work."""
genericframe = GenericFrame()
genericframe.set_address(bytes([42]))
def test_is_valid1():
"""test for having valid 16bit FCS field"""
genericframe = GenericFrame()
genericframe.parse(b'\x00')
assert genericframe.is_valid() is True
def test_is_allstation3(chunk2):
""""given a no-station address, testing is_allstation should yield False"""
genericframe = GenericFrame()
genericframe.parse_address(chunk2)
assert genericframe.is_allstation() is False
def test_is_nostation2(chunk1):
"""parsing a all-station address should return False on is_nostation()"""
genericframe = GenericFrame()
genericframe.parse_address(chunk1)
assert genericframe.is_nostation() is False
def test_parse_address7():
"""unstripped input, 4 bytes, invalid closing flags"""
genericframe = GenericFrame()
with pytest.raises(ValueError):
genericframe.parse_address(b'\x7e\x00\x00\x42')
def test_is_allstation1(chunk1):
"""test frame generated with unicast/allstation address for having one"""
genericframe = GenericFrame()
genericframe.parse_address(chunk1)
assert genericframe.is_allstation() is True
def test_set_control0():
"""test for passing a bytes instance."""
genericframe = GenericFrame()
genericframe.set_control(bytes([42]))
def test_set_control1():
"""test for passing Bytes array."""
genericframe = GenericFrame()
with pytest.raises(TypeError):
genericframe.set_control(bytearray(1))
def test_get_address0():
"""setting and retrieving an 8bit address on a genericframe."""
genericframe = GenericFrame()
genericframe.set_address(bytes([42]))
assert bytes([42]) == genericframe.get_address()
def test_get_address1():
"""test for returning bytes()"""
genericframe = GenericFrame()
assert isinstance(genericframe.get_address(), bytes)
def test_set_address4():
"""setting 'all station' should work"""
genericframe = GenericFrame()
genericframe.set_address(bytes([255]))
assert genericframe.is_allstation() is True
def test_set_address3():
"""giving string as address should fail"""
genericframe = GenericFrame()
with pytest.raises(TypeError):
genericframe.set_address('23')
def test_set_address2():
"""giving int as address should fail"""
genericframe = GenericFrame()
with pytest.raises(TypeError):
genericframe.set_address(42)
def test_parse_address3():
"""test for too short bytearray """
genericframe = GenericFrame()
with pytest.raises(TypeError):
genericframe.parse_address(bytearray(1))
def test_get_control0():
"""test for retrieving set control field."""
genericframe = GenericFrame()
genericframe.set_control(bytes([42]))
assert bytes([42]) == genericframe.get_control()
def test_parse_address4():
"""stripped input: just two zero-bytes"""
genericframe = GenericFrame()
with pytest.raises(ValueError):
genericframe.parse_address(bytes(2))
def test_get_control1():
"""test for retrieving correct type"""
genericframe = GenericFrame()
assert isinstance(genericframe.get_control(), bytes)
def test_parse_address9(chunk4):
"""parse I-frame control field with 1 byte address"""
genericframe = GenericFrame()
genericframe.parse_address(chunk4)
def test_parse_address2():
"""test for rejecting float input"""
genericframe = GenericFrame()
with pytest.raises(TypeError):
genericframe.parse_address(2.3)
def test_is_allstation2():
"""vanilla object should not have an allstation address assigned"""
genericframe = GenericFrame()
assert genericframe.is_allstation() is False
def test_is_IFrame0():
"""set I-frame bit and control for it."""
genericframe = GenericFrame()
genericframe.set_control(bytes([42]))
assert genericframe.is_IFrame() is True
def test_is_nostation1():
"""'no station' should be the default address for a base frame."""
genericframe = GenericFrame()
assert genericframe.is_nostation() is True
def test_is_IFrame1():
"""test non-I-frame for being one."""
genericframe = GenericFrame()
genericframe.set_control(bytes([128]))
assert genericframe.is_IFrame() is False
def test_is_nostation3(chunk2):
"""parsing a no-station address should return True in is_nostation()"""
genericframe = GenericFrame()
genericframe.parse_address(chunk2)
assert genericframe.is_nostation() is True
def test_parse_address1():
"""test for rejecting strings"""
genericframe = GenericFrame()
with pytest.raises(TypeError):
genericframe.parse_address('test')