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import pytest
from pybind11_tests import kwargs_and_defaults as m
def test_function_signatures(doc):
assert doc(m.kw_func0) == "kw_func0(arg0: int, arg1: int) -> str"
assert doc(m.kw_func1) == "kw_func1(x: int, y: int) -> str"
assert doc(m.kw_func2) == "kw_func2(x: int=100, y: int=200) -> str"
assert doc(m.kw_func3) == "kw_func3(data: str='Hello world!') -> None"
assert doc(m.kw_func4) == "kw_func4(myList: List[int]=[13, 17]) -> str"
assert doc(m.kw_func_udl) == "kw_func_udl(x: int, y: int=300) -> str"
assert doc(m.kw_func_udl_z) == "kw_func_udl_z(x: int, y: int=0) -> str"
assert doc(m.args_function) == "args_function(*args) -> tuple"
assert doc(m.args_kwargs_function) == "args_kwargs_function(*args, **kwargs) -> tuple"
assert doc(m.KWClass.foo0) == \
"foo0(self: m.kwargs_and_defaults.KWClass, arg0: int, arg1: float) -> None"
assert doc(m.KWClass.foo1) == \
"foo1(self: m.kwargs_and_defaults.KWClass, x: int, y: float) -> None"
def test_named_arguments(msg):
assert m.kw_func0(5, 10) == "x=5, y=10"
assert m.kw_func1(5, 10) == "x=5, y=10"
assert m.kw_func1(5, y=10) == "x=5, y=10"
assert m.kw_func1(y=10, x=5) == "x=5, y=10"
assert m.kw_func2() == "x=100, y=200"
assert m.kw_func2(5) == "x=5, y=200"
assert m.kw_func2(x=5) == "x=5, y=200"
assert m.kw_func2(y=10) == "x=100, y=10"
assert m.kw_func2(5, 10) == "x=5, y=10"
assert m.kw_func2(x=5, y=10) == "x=5, y=10"
with pytest.raises(TypeError) as excinfo:
# noinspection PyArgumentList
m.kw_func2(x=5, y=10, z=12)
assert excinfo.match(
r'(?s)^kw_func2\(\): incompatible.*Invoked with: kwargs: ((x=5|y=10|z=12)(, |$))' + '{3}$')
assert m.kw_func4() == "{13 17}"
assert m.kw_func4(myList=[1, 2, 3]) == "{1 2 3}"
assert m.kw_func_udl(x=5, y=10) == "x=5, y=10"
assert m.kw_func_udl_z(x=5) == "x=5, y=0"
def test_arg_and_kwargs():
args = 'arg1_value', 'arg2_value', 3
assert m.args_function(*args) == args
args = 'a1', 'a2'
kwargs = dict(arg3='a3', arg4=4)
assert m.args_kwargs_function(*args, **kwargs) == (args, kwargs)
def test_mixed_args_and_kwargs(msg):
mpa = m.mixed_plus_args
mpk = m.mixed_plus_kwargs
mpak = m.mixed_plus_args_kwargs
mpakd = m.mixed_plus_args_kwargs_defaults
assert mpa(1, 2.5, 4, 99.5, None) == (1, 2.5, (4, 99.5, None))
assert mpa(1, 2.5) == (1, 2.5, ())
with pytest.raises(TypeError) as excinfo:
assert mpa(1)
assert msg(excinfo.value) == """
mixed_plus_args(): incompatible function arguments. The following argument types are supported:
1. (arg0: int, arg1: float, *args) -> tuple
Invoked with: 1
""" # noqa: E501 line too long
with pytest.raises(TypeError) as excinfo:
assert mpa()
assert msg(excinfo.value) == """
mixed_plus_args(): incompatible function arguments. The following argument types are supported:
1. (arg0: int, arg1: float, *args) -> tuple
Invoked with:
""" # noqa: E501 line too long
assert mpk(-2, 3.5, pi=3.14159, e=2.71828) == (-2, 3.5, {'e': 2.71828, 'pi': 3.14159})
assert mpak(7, 7.7, 7.77, 7.777, 7.7777, minusseven=-7) == (
7, 7.7, (7.77, 7.777, 7.7777), {'minusseven': -7})
assert mpakd() == (1, 3.14159, (), {})
assert mpakd(3) == (3, 3.14159, (), {})
assert mpakd(j=2.71828) == (1, 2.71828, (), {})
assert mpakd(k=42) == (1, 3.14159, (), {'k': 42})
assert mpakd(1, 1, 2, 3, 5, 8, then=13, followedby=21) == (
1, 1, (2, 3, 5, 8), {'then': 13, 'followedby': 21})
# Arguments specified both positionally and via kwargs should fail:
with pytest.raises(TypeError) as excinfo:
assert mpakd(1, i=1)
assert msg(excinfo.value) == """
mixed_plus_args_kwargs_defaults(): incompatible function arguments. The following argument types are supported:
1. (i: int=1, j: float=3.14159, *args, **kwargs) -> tuple
Invoked with: 1; kwargs: i=1
""" # noqa: E501 line too long
with pytest.raises(TypeError) as excinfo:
assert mpakd(1, 2, j=1)
assert msg(excinfo.value) == """
mixed_plus_args_kwargs_defaults(): incompatible function arguments. The following argument types are supported:
1. (i: int=1, j: float=3.14159, *args, **kwargs) -> tuple
Invoked with: 1, 2; kwargs: j=1
""" # noqa: E501 line too long
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