def test_UIntEncoder__decode_normal_multi_byte():
field = Field("my_field", byte_index=(0, 1, 2))
encoder = UIntEncoder()
input_value = b"\xAB\xCD\xEF"
expected = 0xABCDEF
actual = encoder.decode(input_value, field)
assert actual == expected
def test_UIntEncoder__decode_normal_one_byte():
field = Field("my_field", byte_index=(0,))
encoder = UIntEncoder()
input_value = b"\x81"
expected = 0b10000001
actual = encoder.decode(input_value, field)
assert actual == expected
def test_Field_with_UIntEncoder__decode_normal_multi_byte():
field = Field("", byte_index=(0, 1, 2), bit_mask=0x0FFFF0, encoder=UIntEncoder())
input_value = (0xFFF000).to_bytes(3, "big")
expected = 0x00FF00
actual = field.decode(input_value)
assert actual == expected
def test_Field_with_UIntEncoder__decode_normal_one_byte():
field = Field("", bit_mask=0b11110000, encoder=UIntEncoder())
input_value = bytes([0b00111100])
expected = 0b00000011
actual = field.decode(input_value)
assert actual == expected