def test_reset(decoy: Decoy) -> None:
"""It should be able to reset its state."""
subject = decoy.mock(cls=SomeClass)
subject.foo("hello")
decoy.reset()
with pytest.raises(AssertionError):
decoy.verify(subject.foo("hello"))
def decoy() -> Iterable[Decoy]:
"""Get a [decoy.Decoy][] container and [reset it][decoy.Decoy.reset] after the test.
This function is function-scoped [pytest fixture][] that will be
automatically inserted by the plugin.
[pytest fixture]: https://docs.pytest.org/en/latest/how-to/fixtures.html
Example:
```python
def test_my_thing(decoy: Decoy) -> None:
my_fake_func = decoy.mock()
# ...
```
"""
decoy = Decoy()
yield decoy
decoy.reset()
class DecoyTestCase(unittest.TestCase):
"""Decoy test case using unittest."""
def setUp(self) -> None:
"""Set up before each test."""
self.decoy = Decoy()
def tearDown(self) -> None:
"""Clean up after each test."""
self.decoy.reset()
def test_when(self) -> None:
"""Test that self.decoy.when works."""
mock = self.decoy.mock(cls=SomeClass)
self.decoy.when(mock.foo("hello")).then_return("world")
assert mock.foo("hello") == "world"
def test_verify(self) -> None:
"""Test that self.decoy.verify works."""
mock = self.decoy.mock(cls=SomeClass)
mock.foo("hello")
self.decoy.verify(mock.foo("hello"))