{ lib, buildPythonPackage, isPyPy, fetchFromGitHub, attrs, gitMinimal, pexpect, doCheck ? true, pytestCheckHook, pytest-xdist, rustPlatform, sortedcontainers, syrupy, tzdata, }: buildPythonPackage (finalAttrs: { pname = "hypothesis"; version = "6.156.1"; pyproject = true; __structuredAttrs = true; src = fetchFromGitHub { owner = "HypothesisWorks"; repo = "hypothesis"; tag = "v${finalAttrs.version}"; hash = "sha256-Z3LffzA+tsJtvXebTayfRZo32b0LcU2RFDS6bAdCDqU="; }; sourceRoot = "${finalAttrs.src.name}/hypothesis"; cargoRoot = "rust"; cargoDeps = rustPlatform.fetchCargoVendor { inherit (finalAttrs) pname version src sourceRoot cargoRoot ; hash = "sha256-WEuCK1jpemnNpO+UxsfpdAkFLSM0v2WRjZr3qmSLBJI="; }; # I tried to package sphinx-selective-exclude, but it throws # error about "module 'sphinx' has no attribute 'directives'". # # It probably has to do with monkey-patching internals of Sphinx. # On bright side, this extension does not introduces new commands, # only changes "::only" command, so we probably okay with stock # implementation. # # I wonder how upstream of "hypothesis" builds documentation. postPatch = '' sed -i -e '/sphinx_selective_exclude.eager_only/ d' docs/conf.py ''; nativeBuildInputs = [ rustPlatform.cargoSetupHook ]; build-system = [ rustPlatform.maturinBuildHook ]; dependencies = [ attrs sortedcontainers ]; nativeCheckInputs = [ gitMinimal pexpect pytest-xdist pytestCheckHook (syrupy.overridePythonAttrs { doCheck = false; }) ] ++ lib.optionals isPyPy [ tzdata ]; inherit doCheck; # tox.ini changes how pytest runs and breaks it. # Activate the CI profile (similar to setupHook below) # by setting HYPOTHESIS_PROFILE [1]. # # [1]: https://github.com/HypothesisWorks/hypothesis/blob/hypothesis-python-6.130.9/hypothesis-python/tests/common/setup.py#L78 preCheck = '' rm tox.ini export HYPOTHESIS_PROFILE=ci export TMPDIR=$(mktemp -d) ''; pytestFlags = [ "-p no:cacheprovider" ]; enabledTestPaths = [ "tests/cover" ]; # Hypothesis by default activates several "Health Checks", including one that fires if the builder is "too slow". # This check is disabled [1] if Hypothesis detects a CI environment, i.e. either `CI` or `TF_BUILD` is defined [2]. # We set `CI=1` here using a setup hook to avoid spurious failures [3]. # # Example error message for reference: # hypothesis.errors.FailedHealthCheck: Data generation is extremely slow: Only produced 2 valid examples in 1.28 seconds (1 invalid ones and 0 exceeded maximum size). Try decreasing size of the data you're generating (with e.g. max_size or max_leaves parameters). # # [1]: https://github.com/HypothesisWorks/hypothesis/blob/hypothesis-python-6.130.9/hypothesis-python/src/hypothesis/_settings.py#L816-L828 # [2]: https://github.com/HypothesisWorks/hypothesis/blob/hypothesis-python-6.130.9/hypothesis-python/src/hypothesis/_settings.py#L756 # [3]: https://github.com/NixOS/nixpkgs/issues/393637 setupHook = ./setup-hook.sh; disabledTests = [ # fail when using CI profile "test_given_does_not_pollute_state" "test_find_does_not_pollute_state" "test_does_print_on_reuse_from_database" "test_prints_seed_only_on_healthcheck" "test_prints_seed_on_very_slow_shrinking" "test_regex_output_should_print_as_string" ] ++ lib.optionals isPyPy [ # hypothesis.errors.Unsatisfiable: Could not find any examples from datetimes(min_value=datetime.datetime(2003, 1, 1, 0, 0), max_value=datetime.datetime(2005, 12, 31, 23, 59, 59, 999999)) that satisfied lambda x: x.month == 2 and x.day == 29 "test_bordering_on_a_leap_year" ]; pythonImportsCheck = [ "hypothesis" ]; meta = { description = "Library for property based testing"; mainProgram = "hypothesis"; homepage = "https://github.com/HypothesisWorks/hypothesis"; changelog = "https://hypothesis.readthedocs.io/en/latest/changes.html#v${ lib.replaceStrings [ "." ] [ "-" ] finalAttrs.version }"; license = lib.licenses.mpl20; maintainers = [ lib.maintainers.fliegendewurst ]; }; })