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import warnings
from inspect import signature
import pytest
from legacy_api_wrap import legacy_api
# def old(a, b=None, d=1, c=2):
# pass
@legacy_api("d", "c")
def new(a, b=None, *, c=2, d=1, e=3):
return dict(a=a, b=b, c=c, d=d, e=e)
def test_inspection_correct():
assert str(signature(new)) == "(a, b=None, *, c=2, d=1, e=3)"
def test_new_param_available():
new(12, e=13)
def test_old_positional_order():
with pytest.deprecated_call():
res = new(12, 13, 14)
assert res["d"] == 14
def test_warning_stack():
with pytest.deprecated_call() as record:
new(12, 13, 14)
w = record.pop() # type: warnings.WarningMessage
assert w.filename == __file__
def test_too_many_args():
from pytest import raises
with raises(TypeError, match=r"new\(\) takes from 1 to 4 parameters, but 5 were given\."):
new(1, 2, 3, 4, 5)
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