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ðŸ“ ..
ðŸ“„ __init__.py(0 B)
ðŸ“ __pycache__
ðŸ“„ all_tests.py(2.44 KB)
ðŸ“„ all_tests_without_extra_packages.py(1.15 KB)
ðŸ“„ dynamic_patch_test.py(2.04 KB)
ðŸ“„ example.py(3.88 KB)
ðŸ“„ example_test.py(6.79 KB)
ðŸ“„ fake_filesystem_glob_test.py(2.53 KB)
ðŸ“„ fake_filesystem_shutil_test.py(21.71 KB)
ðŸ“„ fake_filesystem_test.py(103.17 KB)
ðŸ“„ fake_filesystem_unittest_test.py(33.27 KB)
ðŸ“„ fake_filesystem_vs_real_test.py(28.93 KB)
ðŸ“„ fake_open_test.py(82.35 KB)
ðŸ“„ fake_os_test.py(225.55 KB)
ðŸ“„ fake_pathlib_test.py(47.67 KB)
ðŸ“„ fake_stat_time_test.py(21.77 KB)
ðŸ“„ fake_tempfile_test.py(4.08 KB)
ðŸ“ fixtures
ðŸ“„ import_as_example.py(3.11 KB)
ðŸ“„ logsio.py(832 B)
ðŸ“„ mox3_stubout_example.py(892 B)
ðŸ“„ mox3_stubout_test.py(5.24 KB)
ðŸ“„ patched_packages_test.py(2.51 KB)
ðŸ“„ performance_test.py(2.56 KB)
ðŸ“„ test_utils.py(16.45 KB)

Editing: performance_test.py

# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Shall provide tests to check performance overhead of pyfakefs."""
import os
import time
import unittest

from pyfakefs.fake_filesystem_unittest import TestCase
from pyfakefs.helpers import IS_PYPY

if os.environ.get("TEST_PERFORMANCE"):

class SetupPerformanceTest(TestCase):
        @classmethod
        def setUpClass(cls) -> None:
            cls.start_time = time.time()

@classmethod
        def tearDownClass(cls) -> None:
            cls.elapsed_time = time.time() - cls.start_time
            print(
                "Elapsed time per test for cached setup: {:.3f} ms".format(
                    cls.elapsed_time * 10
                )
            )

def setUp(self) -> None:
            self.setUpPyfakefs()

class SetupNoCachePerformanceTest(TestCase):
        @classmethod
        def setUpClass(cls) -> None:
            cls.start_time = time.time()

@classmethod
        def tearDownClass(cls) -> None:
            cls.elapsed_time = time.time() - cls.start_time
            print(
                "Elapsed time per test for uncached setup: {:.3f} ms".format(
                    cls.elapsed_time * 10
                )
            )

def setUp(self) -> None:
            self.setUpPyfakefs(use_cache=False)

@unittest.skipIf(IS_PYPY, "PyPy times are not comparable")
    class TimePerformanceTest(TestCase):
        """Make sure performance degradation in setup is noticed.
        The numbers are related to the CI builds and may fail in local builds.
        """

def test_cached_time(self):
            self.assertLess(SetupPerformanceTest.elapsed_time, 0.4)

def test_uncached_time(self):
            self.assertLess(SetupNoCachePerformanceTest.elapsed_time, 6)

def test_setup(self):
        pass

for n in range(100):
        test_name = "test_" + str(n)
        setattr(SetupPerformanceTest, test_name, test_setup)
        test_name = "test_nocache" + str(n)
        setattr(SetupNoCachePerformanceTest, test_name, test_setup)

if __name__ == "__main__":
        unittest.main()

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