testing/mozbase/mozfile/tests/test_tempdir.py

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1 #!/usr/bin/env python
2
3 # This Source Code Form is subject to the terms of the Mozilla Public
4 # License, v. 2.0. If a copy of the MPL was not distributed with this
5 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
6
7 """
8 tests for mozfile.TemporaryDirectory
9 """
10
11 from mozfile import TemporaryDirectory
12 import os
13 import unittest
14
15
16 class TestTemporaryDirectory(unittest.TestCase):
17
18 def test_removed(self):
19 """ensure that a TemporaryDirectory gets removed"""
20 path = None
21 with TemporaryDirectory() as tmp:
22 path = tmp
23 self.assertTrue(os.path.isdir(tmp))
24 tmpfile = os.path.join(tmp, "a_temp_file")
25 open(tmpfile, "w").write("data")
26 self.assertTrue(os.path.isfile(tmpfile))
27 self.assertFalse(os.path.isdir(path))
28 self.assertFalse(os.path.exists(path))
29
30 def test_exception(self):
31 """ensure that TemporaryDirectory handles exceptions"""
32 path = None
33 with self.assertRaises(Exception):
34 with TemporaryDirectory() as tmp:
35 path = tmp
36 self.assertTrue(os.path.isdir(tmp))
37 raise Exception("oops")
38 self.assertFalse(os.path.isdir(path))
39 self.assertFalse(os.path.exists(path))
40
41 if __name__ == '__main__':
42 unittest.main()

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