test_kwargs_and_defaults.py revision 11986
1import pytest 2from pybind11_tests import (kw_func0, kw_func1, kw_func2, kw_func3, kw_func4, args_function, 3 args_kwargs_function, kw_func_udl, kw_func_udl_z, KWClass) 4 5 6def test_function_signatures(doc): 7 assert doc(kw_func0) == "kw_func0(arg0: int, arg1: int) -> str" 8 assert doc(kw_func1) == "kw_func1(x: int, y: int) -> str" 9 assert doc(kw_func2) == "kw_func2(x: int=100, y: int=200) -> str" 10 assert doc(kw_func3) == "kw_func3(data: str='Hello world!') -> None" 11 assert doc(kw_func4) == "kw_func4(myList: List[int]=[13, 17]) -> str" 12 assert doc(kw_func_udl) == "kw_func_udl(x: int, y: int=300) -> str" 13 assert doc(kw_func_udl_z) == "kw_func_udl_z(x: int, y: int=0) -> str" 14 assert doc(args_function) == "args_function(*args) -> tuple" 15 assert doc(args_kwargs_function) == "args_kwargs_function(*args, **kwargs) -> tuple" 16 assert doc(KWClass.foo0) == "foo0(self: m.KWClass, arg0: int, arg1: float) -> None" 17 assert doc(KWClass.foo1) == "foo1(self: m.KWClass, x: int, y: float) -> None" 18 19 20def test_named_arguments(msg): 21 assert kw_func0(5, 10) == "x=5, y=10" 22 23 assert kw_func1(5, 10) == "x=5, y=10" 24 assert kw_func1(5, y=10) == "x=5, y=10" 25 assert kw_func1(y=10, x=5) == "x=5, y=10" 26 27 assert kw_func2() == "x=100, y=200" 28 assert kw_func2(5) == "x=5, y=200" 29 assert kw_func2(x=5) == "x=5, y=200" 30 assert kw_func2(y=10) == "x=100, y=10" 31 assert kw_func2(5, 10) == "x=5, y=10" 32 assert kw_func2(x=5, y=10) == "x=5, y=10" 33 34 with pytest.raises(TypeError) as excinfo: 35 # noinspection PyArgumentList 36 kw_func2(x=5, y=10, z=12) 37 assert msg(excinfo.value) == """ 38 kw_func2(): incompatible function arguments. The following argument types are supported: 39 1. (x: int=100, y: int=200) -> str 40 41 Invoked with: 42 """ 43 44 assert kw_func4() == "{13 17}" 45 assert kw_func4(myList=[1, 2, 3]) == "{1 2 3}" 46 47 assert kw_func_udl(x=5, y=10) == "x=5, y=10" 48 assert kw_func_udl_z(x=5) == "x=5, y=0" 49 50 51def test_arg_and_kwargs(): 52 args = 'arg1_value', 'arg2_value', 3 53 assert args_function(*args) == args 54 55 args = 'a1', 'a2' 56 kwargs = dict(arg3='a3', arg4=4) 57 assert args_kwargs_function(*args, **kwargs) == (args, kwargs) 58