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1 #!/usr/bin/env python | |
2 # Copyright 2014 The Chromium Authors. All rights reserved. | |
3 # Use of this source code is governed by a BSD-style license that can be | |
4 # found in the LICENSE file. | |
5 | |
6 """ | |
7 Unit tests for the contents of device_temp_file.py. | |
8 """ | |
9 | |
10 import logging | |
11 import os | |
12 import sys | |
13 import unittest | |
14 | |
15 from pylib import constants | |
16 from pylib.device import adb_wrapper | |
17 from pylib.device import device_errors | |
18 from pylib.utils import device_temp_file | |
19 from pylib.utils import mock_calls | |
20 | |
21 sys.path.append(os.path.join( | |
22 constants.DIR_SOURCE_ROOT, 'third_party', 'pymock')) | |
23 import mock # pylint: disable=F0401 | |
24 | |
25 class DeviceTempFileTest(mock_calls.TestCase): | |
26 | |
27 def setUp(self): | |
28 test_serial = '0123456789abcdef' | |
29 self.adb = mock.Mock(spec=adb_wrapper.AdbWrapper) | |
30 self.adb.__str__ = mock.Mock(return_value=test_serial) | |
31 self.watchMethodCalls(self.call.adb) | |
32 | |
33 def mockShellCall(self, cmd_prefix, action=''): | |
34 """Expect an adb.Shell(cmd) call with cmd_prefix and do some action | |
35 | |
36 Args: | |
37 cmd_prefix: A string, the cmd of the received call is expected to have | |
38 this as a prefix. | |
39 action: If callable, an action to perform when the expected call is | |
40 received, otherwise a return value. | |
41 Returns: | |
42 An (expected_call, action) pair suitable for use in assertCalls. | |
43 """ | |
44 def check_and_return(cmd): | |
45 self.assertTrue( | |
46 cmd.startswith(cmd_prefix), | |
47 'command %r does not start with prefix %r' % (cmd, cmd_prefix)) | |
48 if callable(action): | |
49 return action(cmd) | |
50 else: | |
51 return action | |
52 return (self.call.adb.Shell(mock.ANY), check_and_return) | |
53 | |
54 def mockExistsTest(self, exists_result): | |
55 def action(cmd): | |
56 if exists_result: | |
57 return '' | |
58 else: | |
59 raise device_errors.AdbCommandFailedError( | |
60 cmd, 'File not found', 1, str(self.adb)) | |
61 return self.mockShellCall('test -e ', action) | |
62 | |
63 def testTempFileNameAlreadyExists(self): | |
64 with self.assertCalls( | |
65 self.mockShellCall('test -d /data/local/tmp'), | |
66 self.mockExistsTest(True), | |
67 self.mockExistsTest(True), | |
68 self.mockExistsTest(True), | |
69 self.mockExistsTest(False), | |
70 self.mockShellCall('touch '), | |
71 self.mockShellCall('rm -f ')): | |
72 with device_temp_file.DeviceTempFile(self.adb) as tmpfile: | |
73 logging.debug('Temp file name: %s' % tmpfile.name) | |
74 | |
75 def testTempFileLifecycle(self): | |
76 with self.assertCalls( | |
77 self.mockShellCall('test -d /data/local/tmp'), | |
78 self.mockExistsTest(False), | |
79 self.mockShellCall('touch ')): | |
80 tempFileContextManager = device_temp_file.DeviceTempFile(self.adb) | |
81 with mock.patch.object(self.adb, 'Shell'): | |
82 with tempFileContextManager as tmpfile: | |
83 logging.debug('Temp file name: %s' % tmpfile.name) | |
84 self.assertEquals(0, self.adb.Shell.call_count) | |
85 self.assertEquals(1, self.adb.Shell.call_count) | |
86 args, _ = self.adb.Shell.call_args | |
87 self.assertTrue(args[0].startswith('rm -f ')) | |
88 | |
89 if __name__ == '__main__': | |
90 logging.getLogger().setLevel(logging.DEBUG) | |
91 unittest.main(verbosity=2) | |
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