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https://github.com/RYDE-WORK/pybind11.git
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665e8804f3
The C++ part of the test code is modified to achieve this. As a result,
this kind of test:
```python
with capture:
kw_func1(5, y=10)
assert capture == "kw_func(x=5, y=10)"
```
can be replaced with a simple:
`assert kw_func1(5, y=10) == "x=5, y=10"`
90 lines
3.2 KiB
Python
90 lines
3.2 KiB
Python
import pytest
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def test_inheritance(msg):
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from pybind11_tests import Pet, Dog, Rabbit, dog_bark, pet_name_species
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roger = Rabbit('Rabbit')
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assert roger.name() + " is a " + roger.species() == "Rabbit is a parrot"
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assert pet_name_species(roger) == "Rabbit is a parrot"
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polly = Pet('Polly', 'parrot')
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assert polly.name() + " is a " + polly.species() == "Polly is a parrot"
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assert pet_name_species(polly) == "Polly is a parrot"
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molly = Dog('Molly')
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assert molly.name() + " is a " + molly.species() == "Molly is a dog"
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assert pet_name_species(molly) == "Molly is a dog"
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assert dog_bark(molly) == "Woof!"
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with pytest.raises(TypeError) as excinfo:
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dog_bark(polly)
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assert msg(excinfo.value) == """
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Incompatible function arguments. The following argument types are supported:
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1. (arg0: m.Dog) -> str
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Invoked with: <m.Pet object at 0>
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"""
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def test_callbacks():
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from functools import partial
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from pybind11_tests import (test_callback1, test_callback2, test_callback3,
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test_callback4, test_callback5)
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def func1():
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return "func1"
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def func2(a, b, c, d):
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return "func2", a, b, c, d
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def func3(a):
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return "func3({})".format(a)
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assert test_callback1(func1) == "func1"
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assert test_callback2(func2) == ("func2", "Hello", "x", True, 5)
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assert test_callback1(partial(func2, 1, 2, 3, 4)) == ("func2", 1, 2, 3, 4)
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assert test_callback1(partial(func3, "partial")) == "func3(partial)"
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assert test_callback3(lambda i: i + 1) == "func(43) = 44"
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f = test_callback4()
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assert f(43) == 44
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f = test_callback5()
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assert f(number=43) == 44
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def test_lambda_closure_cleanup():
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from pybind11_tests import test_cleanup, payload_cstats
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test_cleanup()
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cstats = payload_cstats()
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assert cstats.alive() == 0
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assert cstats.copy_constructions == 1
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assert cstats.move_constructions >= 1
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def test_cpp_function_roundtrip():
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"""Test if passing a function pointer from C++ -> Python -> C++ yields the original pointer"""
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from pybind11_tests import dummy_function, dummy_function2, test_dummy_function, roundtrip
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assert test_dummy_function(dummy_function) == "matches dummy_function: eval(1) = 2"
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assert test_dummy_function(roundtrip(dummy_function)) == "matches dummy_function: eval(1) = 2"
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assert roundtrip(None, expect_none=True) is None
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assert test_dummy_function(lambda x: x + 2) == "can't convert to function pointer: eval(1) = 3"
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with pytest.raises(TypeError) as excinfo:
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test_dummy_function(dummy_function2)
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assert "Incompatible function arguments" in str(excinfo.value)
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with pytest.raises(TypeError) as excinfo:
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test_dummy_function(lambda x, y: x + y)
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assert any(s in str(excinfo.value) for s in ("missing 1 required positional argument",
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"takes exactly 2 arguments"))
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def test_function_signatures(doc):
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from pybind11_tests import test_callback3, test_callback4
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assert doc(test_callback3) == "test_callback3(arg0: Callable[[int], int]) -> str"
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assert doc(test_callback4) == "test_callback4() -> Callable[[int], int]"
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