hypothesis-crosshair
Add the power of solver-based symbolic execution to your Hypothesis tests with CrossHair.
Just
pip install hypothesis-crosshair
and then add a backend="crosshair" setting, like so:
from hypothesis import given, settings, strategies as st
@settings(backend="crosshair")
@given(st.integers())
def test_needs_solver(x):
assert x != 123456789
Docs hopefully coming soon. In the meantime, start a discussion or file an issue.
FAQ
Can I try using crosshair for ALL my hypothesis tests?
Yes! Create or edit your pytest conftest.py file to register a profile like the following:
from hypothesis import settings
settings.register_profile(
"crosshair",
backend="crosshair",
)
And then run pytest using the profile you've defined:
pytest . --hypothesis-profile=crosshair
Changelog
0.0.14
- Support the revised hypothesis provider draw interfaces as of hypothesis
v6.112.0.
0.0.13
- Integrate with the hypothesis observability system.
0.0.12
- Error early when trying to nest hypothesis tests. (which will otherwise put CrossHair into a bad state)
0.0.11
- Address errors when the solver can't keep up (fixes #20)
0.0.10
- Reduce the numebr of iterations required to generate valid datetimes
0.0.9
- Quietly ignore iterations that appear to be failing due to symbolic intolerance.
1 maintainer
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