def test_out_of_order(self):
"""
Tests the case where arguments are not in the correct order.
"""
def f(a, b):
pass
with pytest.raises(MismatchedArguments):
verify_callable_argspec(f, [Argument("b"), Argument("a")])
def test_out_of_order(self):
"""
Tests the case where arguments are not in the correct order.
"""
def f(a, b):
pass
with self.assertRaises(MismatchedArguments):
verify_callable_argspec(f, [Argument('b'), Argument('a')])
def test_arg_subset(self):
"""
Tests when the args are a subset of the expectations.
"""
def f(a, b):
pass
with pytest.raises(NotEnoughArguments):
verify_callable_argspec(
f, [Argument("a"), Argument("b"),
Argument("c")])
def test_arg_subset(self):
"""
Tests when the args are a subset of the expectations.
"""
def f(a, b):
pass
with self.assertRaises(NotEnoughArguments):
verify_callable_argspec(
f, [Argument('a'), Argument('b'),
Argument('c')])
def test_bound_method(self):
class C(object):
def f(self, a, b):
pass
method = C().f
verify_callable_argspec(method, [Argument("a"), Argument("b")])
with self.assertRaises(NotEnoughArguments):
# Assert that we don't count self.
verify_callable_argspec(
method,
[Argument("self"),
Argument("a"), Argument("b")],
)
def test_bound_method(self):
class C:
def f(self, a, b):
pass
method = C().f
verify_callable_argspec(method, [Argument('a'), Argument('b')])
with self.assertRaises(NotEnoughArguments):
# Assert that we don't count self.
verify_callable_argspec(
method,
[Argument('self'),
Argument('a'), Argument('b')],
)
def __new__(cls, rule=None, callback=None, check_args=True):
callback = callback or (lambda *args, **kwargs: None)
if check_args:
# Check the callback provided.
verify_callable_argspec(callback, [
Argument('context' if check_args else Argument.ignore),
Argument('data' if check_args else Argument.ignore)
])
# Make sure that the rule's should_trigger is valid. This will
# catch potential errors much more quickly and give a more helpful
# error.
verify_callable_argspec(getattr(rule, 'should_trigger'),
[Argument('dt')])
return super(cls, cls).__new__(cls, rule=rule, callback=callback)
def test_ignore_default(self):
"""
Tests that ignoring defaults works as intended.
"""
def f(a=1):
pass
verify_callable_argspec(f, [Argument('a')])
def test_default(self):
"""
Tests when an argument expects a default and it is present.
"""
def f(a=1):
pass
verify_callable_argspec(f, [Argument('a', 1)])
def test_no_default(self):
"""
Tests when an argument expects a default and it is not present.
"""
def f(a):
pass
with self.assertRaises(MismatchedArguments):
verify_callable_argspec(f, [Argument('a', 1)])
def test_wrong_default(self):
"""
Tests the case where a default is expected, but the default provided
does not match the one expected.
"""
def f(a=1):
pass
with self.assertRaises(MismatchedArguments):
verify_callable_argspec(f, [Argument('a', 2)])
def test_ignore_name(self):
"""
Tests ignoring a param name.
"""
def f(a):
pass
def g(b):
pass
def h(c=1):
pass
expected_args = [Argument(Argument.ignore, Argument.no_default)]
verify_callable_argspec(f, expected_args)
verify_callable_argspec(f, expected_args)
with self.assertRaises(MismatchedArguments):
verify_callable_argspec(h, expected_args)
def test_any_default(self):
"""
Tests the any_default option.
"""
def f(a=1):
pass
def g(a=2):
pass
def h(a):
pass
expected_args = [Argument('a', Argument.any_default)]
verify_callable_argspec(f, expected_args)
verify_callable_argspec(g, expected_args)
with self.assertRaises(MismatchedArguments):
verify_callable_argspec(h, expected_args)
def test_arg_superset(self):
def f(a, b, c):
pass
with pytest.raises(TooManyArguments):
verify_callable_argspec(f, [Argument("a"), Argument("b")])
def test_mismatched_args(self):
def f(a, b):
pass
with self.assertRaises(MismatchedArguments):
verify_callable_argspec(f, [Argument('c'), Argument('d')])
def test_mismatched_args(self):
def f(a, b):
pass
with pytest.raises(MismatchedArguments):
verify_callable_argspec(f, [Argument("c"), Argument("d")])
def test_arg_superset(self):
def f(a, b, c):
pass
with self.assertRaises(TooManyArguments):
verify_callable_argspec(f, [Argument('a'), Argument('b')])
