| # Copyright 2017 The Bazel Authors. All rights reserved. |
| # |
| # 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 TempJunction.""" |
| |
| import os |
| import unittest |
| |
| from src.test.py.bazel import test_base |
| from tools.android import junction |
| |
| |
| class JunctionTest(test_base.TestBase): |
| """Unit tests for junction.py.""" |
| |
| def _AssertCreateJunctionWhenTargetsParentsDontExist(self, max_path=None): |
| |
| def tempdir(): |
| return self.ScratchDir("junc temp") |
| |
| target = self.Path("this directory/should not\\yet exist") |
| self.assertFalse(os.path.exists(os.path.dirname(os.path.dirname(target)))) |
| # Make the `target` path a non-normalized Windows path with a space in it |
| # which doesn't even exist. |
| # TempJunction should still work; it should: |
| # - normalize the path, and |
| # - create all directories on the path |
| # target = os.path.dirname(target) + "/junc target" |
| juncpath = None |
| with junction.TempJunction( |
| target, testonly_mkdtemp=tempdir, testonly_maxpath=max_path) as j: |
| juncpath = j |
| # Ensure that `j` created the junction. |
| self.assertTrue(os.path.exists(target)) |
| self.assertTrue(os.path.exists(juncpath)) |
| self.assertTrue(juncpath.endswith(os.path.join("junc temp", "j"))) |
| self.assertTrue(os.path.isabs(juncpath)) |
| # Create a file under the junction. |
| filepath = os.path.join(juncpath, "some file.txt") |
| with open(filepath, "w") as f: |
| f.write("hello") |
| # Ensure we can reach the file via the junction and the target directory. |
| self.assertTrue(os.path.exists(os.path.join(target, "some file.txt"))) |
| self.assertTrue(os.path.exists(os.path.join(juncpath, "some file.txt"))) |
| # Ensure that after the `with` block the junction and temp directories no |
| # longer exist, but we can still reach the file via the target directory. |
| self.assertTrue(os.path.exists(os.path.join(target, "some file.txt"))) |
| self.assertFalse(os.path.exists(os.path.join(juncpath, "some file.txt"))) |
| self.assertFalse(os.path.exists(juncpath)) |
| self.assertFalse(os.path.exists(os.path.dirname(juncpath))) |
| |
| def testCreateJunctionWhenTargetsParentsDontExistAndPathIsShort(self): |
| self._AssertCreateJunctionWhenTargetsParentsDontExist() |
| |
| def testCreateJunctionWhenTargetsParentsDontExistAndPathIsLong(self): |
| self._AssertCreateJunctionWhenTargetsParentsDontExist(1) |
| |
| def testCannotCreateJunction(self): |
| |
| def tempdir(): |
| return self.ScratchDir("junc temp") |
| |
| target = self.ScratchDir("junc target") |
| # Make the `target` path a non-normalized Windows path with a space in it. |
| # TempJunction should still work. |
| target = os.path.dirname(target) + "/junc target" |
| with junction.TempJunction(target, testonly_mkdtemp=tempdir) as j: |
| self.assertTrue(os.path.exists(j)) |
| try: |
| # Ensure that TempJunction raises a JunctionCreationError if it cannot |
| # create a junction. In this case the junction already exists in that |
| # directory. |
| with junction.TempJunction(target, testonly_mkdtemp=tempdir) as _: |
| self.fail("Expected exception") |
| except junction.JunctionCreationError: |
| pass # expected |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |