def call_for_statistics(test_function):
result = [None]
def callback(statistics):
result[0] = statistics
with collector.with_value(callback):
try:
test_function()
except Exception:
traceback.print_exc()
assert result[0] is not None
return result[0]
def pytest_runtest_call(item):
if not (hasattr(item, 'obj') and is_hypothesis_test(item.obj)):
yield
else:
store = StoringReporter(item.config)
def note_statistics(stats):
gathered_statistics[item.nodeid] = stats
with collector.with_value(note_statistics):
with with_reporter(store):
yield
if store.results:
item.hypothesis_report_information = list(store.results)
def pytest_runtest_call(item):
if not (hasattr(item, "obj") and is_hypothesis_test(item.obj)):
yield
else:
store = StoringReporter(item.config)
def note_statistics(stats):
lines = [item.nodeid + ":", ""] + stats.get_description() + [""]
gathered_statistics[item.nodeid] = lines
item.hypothesis_statistics = lines
with collector.with_value(note_statistics):
with with_reporter(store):
yield
if store.results:
item.hypothesis_report_information = list(store.results)
def pytest_runtest_call(item):
if not hasattr(item, "obj"):
yield
elif not is_hypothesis_test(item.obj):
# If @given was not applied, check whether other hypothesis
# decorators were applied, and raise an error if they were.
if getattr(item.obj, "is_hypothesis_strategy_function", False):
raise InvalidArgument(
"%s is a function that returns a Hypothesis strategy, but pytest "
"has collected it as a test function. This is useless as the "
"function body will never be executed. To define a test "
"function, use @given instead of @composite." %
(item.nodeid, ))
message = "Using `@%s` on a test without `@given` is completely pointless."
for name, attribute in [
("example", "hypothesis_explicit_examples"),
("seed", "_hypothesis_internal_use_seed"),
("settings", "_hypothesis_internal_settings_applied"),
("reproduce_example",
"_hypothesis_internal_use_reproduce_failure"),
]:
if hasattr(item.obj, attribute):
raise InvalidArgument(message % (name, ))
yield
else:
# Warn about function-scoped fixtures, excluding autouse fixtures because
# the advice is probably not actionable and the status quo seems OK...
# See https://github.com/HypothesisWorks/hypothesis/issues/377 for detail.
msg = (
"%s uses the %r fixture, which is reset between function calls but not "
"between test cases generated by `@given(...)`. You can change it to "
"a module- or session-scoped fixture if it is safe to reuse; if not "
"we recommend using a context manager inside your test function. See "
"https://docs.pytest.org/en/latest/fixture.html#sharing-test-data "
"for details on fixture scope.")
argnames = None
for fx_defs in item._request._fixturemanager.getfixtureinfo(
node=item, func=item.function,
cls=None).name2fixturedefs.values():
if argnames is None:
argnames = frozenset(signature(item.function).parameters)
for fx in fx_defs:
if fx.argname in argnames:
active_fx = item._request._get_active_fixturedef(
fx.argname)
if active_fx.scope == "function":
note_deprecation(msg % (item.nodeid, fx.argname),
since="2020-02-29")
if item.get_closest_marker("parametrize") is not None:
# Give every parametrized test invocation a unique database key
key = item.nodeid.encode("utf-8")
item.obj.hypothesis.inner_test._hypothesis_internal_add_digest = key
store = StoringReporter(item.config)
def note_statistics(stats):
stats["nodeid"] = item.nodeid
item.hypothesis_statistics = describe_statistics(stats)
with collector.with_value(note_statistics):
with with_reporter(store):
yield
if store.results:
item.hypothesis_report_information = list(store.results)
def pytest_runtest_call(item):
if not (hasattr(item, "obj") and "hypothesis" in sys.modules):
yield
return
from hypothesis import core
from hypothesis.internal.detection import is_hypothesis_test
core.running_under_pytest = True
if not is_hypothesis_test(item.obj):
# If @given was not applied, check whether other hypothesis
# decorators were applied, and raise an error if they were.
if getattr(item.obj, "is_hypothesis_strategy_function", False):
from hypothesis.errors import InvalidArgument
raise InvalidArgument(
f"{item.nodeid} is a function that returns a Hypothesis strategy, "
"but pytest has collected it as a test function. This is useless "
"as the function body will never be executed. To define a test "
"function, use @given instead of @composite."
)
message = "Using `@%s` on a test without `@given` is completely pointless."
for name, attribute in [
("example", "hypothesis_explicit_examples"),
("seed", "_hypothesis_internal_use_seed"),
("settings", "_hypothesis_internal_settings_applied"),
("reproduce_example", "_hypothesis_internal_use_reproduce_failure"),
]:
if hasattr(item.obj, attribute):
from hypothesis.errors import InvalidArgument
raise InvalidArgument(message % (name,))
yield
else:
from hypothesis import HealthCheck, settings
from hypothesis.internal.escalation import current_pytest_item
from hypothesis.internal.healthcheck import fail_health_check
from hypothesis.reporting import with_reporter
from hypothesis.statistics import collector, describe_statistics
# Retrieve the settings for this test from the test object, which
# is normally a Hypothesis wrapped_test wrapper. If this doesn't
# work, the test object is probably something weird
# (e.g a stateful test wrapper), so we skip the function-scoped
# fixture check.
settings = getattr(item.obj, "_hypothesis_internal_use_settings", None)
# Check for suspicious use of function-scoped fixtures, but only
# if the corresponding health check is not suppressed.
if (
settings is not None
and HealthCheck.function_scoped_fixture
not in settings.suppress_health_check
):
# Warn about function-scoped fixtures, excluding autouse fixtures because
# the advice is probably not actionable and the status quo seems OK...
# See https://github.com/HypothesisWorks/hypothesis/issues/377 for detail.
argnames = None
for fx_defs in item._request._fixturemanager.getfixtureinfo(
node=item, func=item.function, cls=None
).name2fixturedefs.values():
if argnames is None:
argnames = frozenset(signature(item.function).parameters)
for fx in fx_defs:
if fx.argname in argnames:
active_fx = item._request._get_active_fixturedef(fx.argname)
if active_fx.scope == "function":
fail_health_check(
settings,
_FIXTURE_MSG.format(fx.argname, item.nodeid),
HealthCheck.function_scoped_fixture,
)
if item.get_closest_marker("parametrize") is not None:
# Give every parametrized test invocation a unique database key
key = item.nodeid.encode()
item.obj.hypothesis.inner_test._hypothesis_internal_add_digest = key
store = StoringReporter(item.config)
def note_statistics(stats):
stats["nodeid"] = item.nodeid
item.hypothesis_statistics = describe_statistics(stats)
with collector.with_value(note_statistics):
with with_reporter(store):
with current_pytest_item.with_value(item):
yield
if store.results:
item.hypothesis_report_information = list(store.results)
def pytest_runtest_call(item):
if not hasattr(item, "obj"):
yield
elif not is_hypothesis_test(item.obj):
# If @given was not applied, check whether other hypothesis
# decorators were applied, and raise an error if they were.
if getattr(item.obj, "is_hypothesis_strategy_function", False):
raise InvalidArgument(
"%s is a function that returns a Hypothesis strategy, but pytest "
"has collected it as a test function. This is useless as the "
"function body will never be executed. To define a test "
"function, use @given instead of @composite." %
(item.nodeid, ))
message = "Using `@%s` on a test without `@given` is completely pointless."
for name, attribute in [
("example", "hypothesis_explicit_examples"),
("seed", "_hypothesis_internal_use_seed"),
("settings", "_hypothesis_internal_settings_applied"),
("reproduce_example",
"_hypothesis_internal_use_reproduce_failure"),
]:
if hasattr(item.obj, attribute):
raise InvalidArgument(message % (name, ))
yield
else:
# Warn about function-scoped fixtures, excluding autouse fixtures because
# the advice is probably not actionable and the status quo seems OK...
# See https://github.com/HypothesisWorks/hypothesis/issues/377 for detail.
argnames = None
for fx_defs in item._request._fixturemanager.getfixtureinfo(
node=item, func=item.function,
cls=None).name2fixturedefs.values():
if argnames is None:
argnames = frozenset(signature(item.function).parameters)
for fx in fx_defs:
if fx.scope == "function" and fx.argname in argnames:
note_deprecation(
"%s uses the %r fixture, but function-scoped fixtures "
"should not be used with @given(...) tests, because "
"fixtures are not reset between generated examples!"
% (item.nodeid, fx.argname),
since="2020-02-29",
)
if item.get_closest_marker("parametrize") is not None:
# Give every parametrized test invocation a unique database key
key = item.nodeid.encode("utf-8")
item.obj.hypothesis.inner_test._hypothesis_internal_add_digest = key
store = StoringReporter(item.config)
def note_statistics(stats):
lines = [item.nodeid + ":", ""
] + stats.get_description() + [""]
item.hypothesis_statistics = lines
with collector.with_value(note_statistics):
with with_reporter(store):
yield
if store.results:
item.hypothesis_report_information = list(store.results)
def pytest_runtest_call(item):
if not hasattr(item, "obj"):
yield
elif not is_hypothesis_test(item.obj):
# If @given was not applied, check whether other hypothesis
# decorators were applied, and raise an error if they were.
if getattr(item.obj, "is_hypothesis_strategy_function", False):
raise InvalidArgument(
f"{item.nodeid} is a function that returns a Hypothesis strategy, "
"but pytest has collected it as a test function. This is useless "
"as the function body will never be executed. To define a test "
"function, use @given instead of @composite.")
message = "Using `@%s` on a test without `@given` is completely pointless."
for name, attribute in [
("example", "hypothesis_explicit_examples"),
("seed", "_hypothesis_internal_use_seed"),
("settings", "_hypothesis_internal_settings_applied"),
("reproduce_example",
"_hypothesis_internal_use_reproduce_failure"),
]:
if hasattr(item.obj, attribute):
raise InvalidArgument(message % (name, ))
yield
else:
# Retrieve the settings for this test from the test object, which
# is normally a Hypothesis wrapped_test wrapper. If this doesn't
# work, the test object is probably something weird
# (e.g a stateful test wrapper), so we skip the function-scoped
# fixture check.
settings = getattr(item.obj, "_hypothesis_internal_use_settings",
None)
# Check for suspicious use of function-scoped fixtures, but only
# if the corresponding health check is not suppressed.
if (settings is not None and HealthCheck.function_scoped_fixture
not in settings.suppress_health_check):
# Warn about function-scoped fixtures, excluding autouse fixtures because
# the advice is probably not actionable and the status quo seems OK...
# See https://github.com/HypothesisWorks/hypothesis/issues/377 for detail.
msg = (
"%s uses the %r fixture, which is reset between function calls but not "
"between test cases generated by `@given(...)`. You can change it to "
"a module- or session-scoped fixture if it is safe to reuse; if not "
"we recommend using a context manager inside your test function. See "
"https://docs.pytest.org/en/latest/how-to/fixtures.html"
"#scope-sharing-fixtures-across-classes-modules-packages-or-session "
"for details on fixture scope.")
argnames = None
for fx_defs in item._request._fixturemanager.getfixtureinfo(
node=item, func=item.function,
cls=None).name2fixturedefs.values():
if argnames is None:
argnames = frozenset(
signature(item.function).parameters)
for fx in fx_defs:
if fx.argname in argnames:
active_fx = item._request._get_active_fixturedef(
fx.argname)
if active_fx.scope == "function":
fail_health_check(
settings,
msg % (item.nodeid, fx.argname),
HealthCheck.function_scoped_fixture,
)
if item.get_closest_marker("parametrize") is not None:
# Give every parametrized test invocation a unique database key
key = item.nodeid.encode()
item.obj.hypothesis.inner_test._hypothesis_internal_add_digest = key
store = StoringReporter(item.config)
def note_statistics(stats):
stats["nodeid"] = item.nodeid
item.hypothesis_statistics = base64.b64encode(
describe_statistics(stats).encode()).decode()
with collector.with_value(note_statistics):
with with_reporter(store):
yield
if store.results:
item.hypothesis_report_information = list(store.results)