def test_logic_bit_equality():
assert Logic(0) == Bit(0)
assert Logic(1) == Bit(1)
def test_bit_conversions():
b = Bit(0)
assert Bit(False) == b
assert Bit("0") == b
assert Bit(Bit(0)) == b
b = Bit(1)
assert Bit(True) == b
assert Bit("1") == b
assert Bit(Bit(1)) == b
for value in ("X", 2, object()):
with pytest.raises(ValueError):
Bit(value)
def test_bit_equality():
assert Bit(0) == Bit(False)
assert Bit(1) != Bit("0")
assert Bit(1) != object()
def test_bit_invert():
assert ~Bit(0) == Bit(1)
assert ~Bit(1) == Bit(0)
def test_bit_identity():
assert Bit(0) is Bit(False)
assert Bit(Logic(1)) is Bit("1")
def test_bit_int_conversions():
assert int(Bit("0")) == 0
assert int(Bit("1")) == 1
def test_bit_repr():
assert eval(repr(Bit("0"))) == Bit("0")
assert eval(repr(Bit("1"))) == Bit("1")
def test_bit_str_conversions():
assert str(Bit(0)) == "0"
assert str(Bit(1)) == "1"
def test_bit_bool_conversions():
assert bool(Bit(1)) is True
assert bool(Bit(0)) is False
def test_bit_default_value():
assert Bit() == Bit("0")
def test_logic_bit_hashability():
s = {Logic("0"), Logic("1"), Logic("X"), Logic("Z"), Bit("0"), Bit("1")}
assert len(s) == 4
def test_bit_hashability():
s = {Bit(0), Bit(1)}
assert len(s) == 2
