def test_future_value_fetch():
container = [1]
def accessor():
return container[0]
value = FutureValue(accessor)
assert value.fetch() == 1
container[0] = 2
assert value.fetch() == 2
def test_future_value_repr():
def accessor():
pass
# args
assert repr(FutureValue(accessor, "arg")) == "FutureValue('arg')"
assert repr(FutureValue(accessor, 1, "arg")) == "FutureValue(1, 'arg')"
# kwargs
assert repr(FutureValue(accessor,
kwarg="val")) == "FutureValue(kwarg='val')"
assert (repr(
FutureValue(accessor, kwarg1=1,
kwarg2="val")) == "FutureValue(kwarg1=1, kwarg2='val')")
# args & kwargs
assert (repr(
FutureValue(accessor, "arg",
default="val")) == "FutureValue('arg', default='val')")
def test_future_value_with_kwargs():
def accessor(**kwargs):
return kwargs
value = FutureValue(accessor, key1="value1", key2="value2")
assert value.get() == {"key1": "value1", "key2": "value2"}
def test_future_value():
def accessor():
return "banana"
value = FutureValue(accessor)
assert value.get() == "banana"
def test_future_value_with_args():
def accessor(*args):
return args
value = FutureValue(accessor, 1, 2, 3)
assert value.get() == (1, 2, 3)