async def test_comparison(self):
value = 1137
for op in comparison_operators:
expected = op(value, value)
expression = op(Tracked(value), value)
assert expected == bool(expression)
assert expected != bool(~expression)
expression = op(value, Tracked(value))
assert expected == bool(expression)
assert expected != bool(~expression)
expression = op(Tracked(value), Tracked(value))
assert expected == bool(expression)
assert expected != bool(~expression)
async def test_mutable(self):
"""Tracked does not mutate the initial value if operations are pure"""
tracked = Tracked([1, 2, 3])
tracked_value = tracked.value
await (tracked == [1, 2, 3])
await (tracked + [4, 5])
assert tracked_value == [1, 2, 3]
assert tracked == [1, 2, 3, 4, 5]
async def test_operator_pow(self):
tracked = Tracked(1137)
expected = pow(tracked.value, 42)
result = await pow(tracked, 42)
assert result is None
assert expected == tracked.value
expected = pow(tracked.value, 42, 3)
result = await pow(tracked, 42, 3)
assert result is None
assert expected == tracked.value
async def test_comparison_wait(self):
value = 1137
tracked = Tracked(value)
await (tracked == value)
assert time.now == 0
async with Scope() as scope:
scope.do(tracked + 10, after=10)
scope.do(tracked + 10, after=20)
await (tracked == value + 20)
assert time.now == 20
async def test_operators(self):
for op in modifying_operators:
tracked = Tracked(1137)
try:
expected = op(tracked.value, 10)
except TypeError:
with pytest.raises(TypeError):
await op(tracked, 10)
else:
result = await op(tracked, 10)
assert result is None
assert expected == tracked.value
async def test_inplace(self):
"""Inplace operations are not well-defined"""
for op in inplace_operators:
tracked = Tracked(1137)
with pytest.raises(TypeError):
op(tracked, 10)
async def test_reflected(self):
"""Reflected operations are not well-defined"""
for op in modifying_operators:
tracked = Tracked(1137)
with pytest.raises(TypeError):
await op(10, tracked)
async def test_misuse(self):
tracked = Tracked(1137)
with pytest.raises(TypeError):
await tracked
with pytest.raises(TypeError):
bool(tracked)
async def test_representable(self):
for case in (Tracked(1138), Tracked(1138) > Tracked(1),
Tracked(1138) + 1):
str(case), repr(case)
async def test_tracked_op_tracked(self):
with pytest.raises(AssertionError):
Tracked(2) + Tracked(2)