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# 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.
"""
Tests for patching modules loaded after `setUpPyfakefs()`.
"""
import pathlib
import unittest
from pyfakefs import fake_filesystem_unittest
class TestPyfakefsUnittestBase(fake_filesystem_unittest.TestCase):
def setUp(self):
"""Set up the fake file system"""
self.setUpPyfakefs()
class DynamicImportPatchTest(TestPyfakefsUnittestBase):
def __init__(self, methodName="runTest"):
super(DynamicImportPatchTest, self).__init__(methodName)
def test_os_patch(self):
import os
os.mkdir("test")
self.assertTrue(self.fs.exists("test"))
self.assertTrue(os.path.exists("test"))
def test_os_import_as_patch(self):
import os as _os
_os.mkdir("test")
self.assertTrue(self.fs.exists("test"))
self.assertTrue(_os.path.exists("test"))
def test_os_path_patch(self):
import os.path
os.mkdir("test")
self.assertTrue(self.fs.exists("test"))
self.assertTrue(os.path.exists("test"))
def test_shutil_patch(self):
import shutil
self.fs.set_disk_usage(100)
self.assertEqual(100, shutil.disk_usage("/").total)
def test_pathlib_path_patch(self):
file_path = "test.txt"
path = pathlib.Path(file_path)
with path.open("w") as f:
f.write("test")
self.assertTrue(self.fs.exists(file_path))
file_object = self.fs.get_object(file_path)
self.assertEqual("test", file_object.contents)
if __name__ == "__main__":
unittest.main()
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