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Side by Side Diff: build/android/pylib/utils/timeout_retry_unittest.py

Issue 1314313004: [Android][telemetry] Update pylib imports for modules that moved into devil. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Created 5 years, 3 months ago
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1 # Copyright 2013 The Chromium Authors. All rights reserved.
2 # Use of this source code is governed by a BSD-style license that can be
3 # found in the LICENSE file.
4
5 """Unittests for timeout_and_retry.py."""
6
7 import unittest
8
9 from pylib.utils import reraiser_thread
10 from pylib.utils import timeout_retry
11
12
13 class TestException(Exception):
14 pass
15
16
17 def _NeverEnding(tries):
18 tries[0] += 1
19 while True:
20 pass
21
22
23 def _CountTries(tries):
24 tries[0] += 1
25 raise TestException
26
27
28 class TestRun(unittest.TestCase):
29 """Tests for timeout_retry.Run."""
30
31 def testRun(self):
32 self.assertTrue(timeout_retry.Run(
33 lambda x: x, 30, 3, [True], {}))
34
35 def testTimeout(self):
36 tries = [0]
37 self.assertRaises(reraiser_thread.TimeoutError,
38 timeout_retry.Run, lambda: _NeverEnding(tries), 0, 3)
39 self.assertEqual(tries[0], 4)
40
41 def testRetries(self):
42 tries = [0]
43 self.assertRaises(TestException,
44 timeout_retry.Run, lambda: _CountTries(tries), 30, 3)
45 self.assertEqual(tries[0], 4)
46
47 def testReturnValue(self):
48 self.assertTrue(timeout_retry.Run(lambda: True, 30, 3))
49
50
51 if __name__ == '__main__':
52 unittest.main()
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