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# hpy.debug / pytest integration
import pytest
from .leakdetector import LeakDetector
# For now "hpy_debug" just does leak detection, but in the future it might
# grows extra features: that's why it's called generically "hpy_debug" instead
# of "detect_leaks".
# NOTE: the fixture itself is currently untested :(. It turns out that testing
# that the fixture raises during the teardown is complicated and probably
# requires to write a full-fledged plugin. We might want to turn this into a
# real plugin in the future, but for now I think this is enough.
# pypy still uses a very ancient version of pytest, 2.9.2: pytest<3.x needs to
# use @yield_fixture, which is deprecated in newer version of pytest (where
# you can just use @fixture)
if pytest.__version__ < '3':
fixture = pytest.yield_fixture
else:
fixture = pytest.fixture
@fixture
def hpy_debug(request):
"""
pytest fixture which makes it possible to control hpy.debug from within a test.
In particular, it automatically check that the test doesn't leak.
"""
with LeakDetector() as ld:
yield ld
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