| 2871 | ) |
| 2872 | @run_in_pyodide |
| 2873 | def test_bind_arg_checking(selenium, sig): |
| 2874 | from inspect import Parameter, signature |
| 2875 | |
| 2876 | import pytest |
| 2877 | |
| 2878 | from pyodide.code import run_js |
| 2879 | |
| 2880 | d = {} |
| 2881 | exec(f"def func({sig}): ...", d) |
| 2882 | func = d.pop("func") |
| 2883 | |
| 2884 | f = run_js("(...args) => pyodide.toPy(args)").bind_sig(func) |
| 2885 | |
| 2886 | def check(*args, **kwargs): |
| 2887 | err = None |
| 2888 | try: |
| 2889 | try: |
| 2890 | func(*args, **kwargs) |
| 2891 | except TypeError as e: |
| 2892 | err = e |
| 2893 | |
| 2894 | if err: |
| 2895 | with pytest.raises(TypeError) as e: |
| 2896 | f(*args, **kwargs) |
| 2897 | assert e.value.args[0] == err.args[0] |
| 2898 | return |
| 2899 | |
| 2900 | sig = signature(func) |
| 2901 | # rename positional parameters to work around bug in bind |
| 2902 | # https://github.com/python/cpython/issues/87106 |
| 2903 | new_params = [] |
| 2904 | for p in sig.parameters.values(): |
| 2905 | if p.kind == Parameter.POSITIONAL_ONLY: |
| 2906 | p = p.replace(name=f"__{p.name}") |
| 2907 | new_params.append(p) |
| 2908 | sig = sig.replace(parameters=new_params) |
| 2909 | res = sig.bind(*args, **kwargs) |
| 2910 | res.apply_defaults() |
| 2911 | expected = [*res.args] |
| 2912 | reskwargs = dict(res.kwargs) |
| 2913 | if reskwargs: |
| 2914 | expected.append(reskwargs) |
| 2915 | for k, v in list(reskwargs.items()): |
| 2916 | if v is None: |
| 2917 | del reskwargs[k] |
| 2918 | assert f(*args, **kwargs) == expected |
| 2919 | finally: |
| 2920 | err = None |
| 2921 | |
| 2922 | check() |
| 2923 | check(1) |
| 2924 | check(1, 2) |
| 2925 | check(1, 2, 3) |
| 2926 | |
| 2927 | check(x=1) |
| 2928 | check(1, x=1) |
| 2929 | check(1, 2, 3, x=1) |
| 2930 | |