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"""Monkey patch os._exit when running under coverage so we don't lose coverage data in forks, such as with `pytest --boxed`. PYTEST_DONT_REWRITE"""
from __future__ import (absolute_import, division, print_function)
__metaclass__ = type
def pytest_configure():
"""Configure this pytest plugin."""
try:
if pytest_configure.executed:
return
except AttributeError:
pytest_configure.executed = True
try:
import coverage
except ImportError:
coverage = None
try:
coverage.Coverage
except AttributeError:
coverage = None
if not coverage:
return
import gc
import os
coverage_instances = []
for obj in gc.get_objects():
if isinstance(obj, coverage.Coverage):
coverage_instances.append(obj)
if not coverage_instances:
coverage_config = os.environ.get('COVERAGE_CONF')
if not coverage_config:
return
coverage_output = os.environ.get('COVERAGE_FILE')
if not coverage_output:
return
cov = coverage.Coverage(config_file=coverage_config)
coverage_instances.append(cov)
else:
cov = None
# noinspection PyProtectedMember
os_exit = os._exit # pylint: disable=protected-access
def coverage_exit(*args, **kwargs):
for instance in coverage_instances:
instance.stop()
instance.save()
os_exit(*args, **kwargs)
os._exit = coverage_exit # pylint: disable=protected-access
if cov:
cov.start()
pytest_configure()
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