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# This file is part of Hypothesis, which may be found at
# https://github.com/HypothesisWorks/hypothesis/
#
# Copyright the Hypothesis Authors.
# Individual contributors are listed in AUTHORS.rst and the git log.
#
# This Source Code Form is subject to the terms of the Mozilla Public License,
# v. 2.0. If a copy of the MPL was not distributed with this file, You can
# obtain one at https://mozilla.org/MPL/2.0/.
import sys
from contextlib import contextmanager
import pytest
from hypothesis import given, strategies as st
from hypothesis.errors import HypothesisWarning
from hypothesis.internal.scrutineer import MONITORING_TOOL_ID
@contextmanager
def using_tool_id(tool_id, tool_name):
try:
sys.monitoring.use_tool_id(tool_id, tool_name)
yield
finally:
sys.monitoring.free_tool_id(tool_id)
@pytest.mark.skipif(sys.version_info[:2] < (3, 12), reason="new namespace")
def test_monitoring_warns_on_registered_tool_id(warns_or_raises):
# scrutineer can't run if something has already registered its tool id.
with using_tool_id(MONITORING_TOOL_ID, "rogue"):
# NOTE: For compatibility with Python 3.9's LL(1)
# parser, this is written as a nested with-statement,
# instead of a compound one.
with warns_or_raises(HypothesisWarning, match=r"already taken by tool rogue"):
@given(st.integers())
def f(n):
raise AssertionError
with pytest.raises(AssertionError):
f()
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