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 mock_calls.py. 8 """ 9 10 import logging 11 import os 12 import unittest 13 14 from devil import devil_env 15 from devil.android.sdk import version_codes 16 from devil.utils import mock_calls 17 18 with devil_env.SysPath(devil_env.PYMOCK_PATH): 19 import mock # pylint: disable=import-error 20 21 22 class _DummyAdb(object): 23 24 def __str__(self): 25 return '0123456789abcdef' 26 27 def Push(self, host_path, device_path): 28 logging.debug('(device %s) pushing %r to %r', self, host_path, device_path) 29 30 def IsOnline(self): 31 logging.debug('(device %s) checking device online', self) 32 return True 33 34 def Shell(self, cmd): 35 logging.debug('(device %s) running command %r', self, cmd) 36 return "nice output\n" 37 38 def Reboot(self): 39 logging.debug('(device %s) rebooted!', self) 40 41 @property 42 def build_version_sdk(self): 43 logging.debug('(device %s) getting build_version_sdk', self) 44 return version_codes.LOLLIPOP 45 46 47 class TestCaseWithAssertCallsTest(mock_calls.TestCase): 48 49 def setUp(self): 50 self.adb = _DummyAdb() 51 52 def ShellError(self): 53 def action(cmd): 54 raise ValueError('(device %s) command %r is not nice' % (self.adb, cmd)) 55 return action 56 57 def get_answer(self): 58 logging.debug("called 'get_answer' of %r object", self) 59 return 42 60 61 def echo(self, thing): 62 logging.debug("called 'echo' of %r object", self) 63 return thing 64 65 def testCallTarget_succeds(self): 66 self.assertEquals(self.adb.Shell, 67 self.call_target(self.call.adb.Shell)) 68 69 def testCallTarget_failsExternal(self): 70 with self.assertRaises(ValueError): 71 self.call_target(mock.call.sys.getcwd) 72 73 def testCallTarget_failsUnknownAttribute(self): 74 with self.assertRaises(AttributeError): 75 self.call_target(self.call.adb.Run) 76 77 def testCallTarget_failsIntermediateCalls(self): 78 with self.assertRaises(AttributeError): 79 self.call_target(self.call.adb.RunShell('cmd').append) 80 81 def testPatchCall_method(self): 82 self.assertEquals(42, self.get_answer()) 83 with self.patch_call(self.call.get_answer, return_value=123): 84 self.assertEquals(123, self.get_answer()) 85 self.assertEquals(42, self.get_answer()) 86 87 def testPatchCall_attribute_method(self): 88 with self.patch_call(self.call.adb.Shell, return_value='hello'): 89 self.assertEquals('hello', self.adb.Shell('echo hello')) 90 91 def testPatchCall_global(self): 92 with self.patch_call(mock.call.os.getcwd, return_value='/some/path'): 93 self.assertEquals('/some/path', os.getcwd()) 94 95 def testPatchCall_withSideEffect(self): 96 with self.patch_call(self.call.adb.Shell, side_effect=ValueError): 97 with self.assertRaises(ValueError): 98 self.adb.Shell('echo hello') 99 100 def testPatchCall_property(self): 101 self.assertEquals(version_codes.LOLLIPOP, self.adb.build_version_sdk) 102 with self.patch_call( 103 self.call.adb.build_version_sdk, 104 return_value=version_codes.KITKAT): 105 self.assertEquals(version_codes.KITKAT, self.adb.build_version_sdk) 106 self.assertEquals(version_codes.LOLLIPOP, self.adb.build_version_sdk) 107 108 def testAssertCalls_succeeds_simple(self): 109 self.assertEquals(42, self.get_answer()) 110 with self.assertCall(self.call.get_answer(), 123): 111 self.assertEquals(123, self.get_answer()) 112 self.assertEquals(42, self.get_answer()) 113 114 def testAssertCalls_succeeds_multiple(self): 115 with self.assertCalls( 116 (mock.call.os.getcwd(), '/some/path'), 117 (self.call.echo('hello'), 'hello'), 118 (self.call.get_answer(), 11), 119 self.call.adb.Push('this_file', 'that_file'), 120 (self.call.get_answer(), 12)): 121 self.assertEquals(os.getcwd(), '/some/path') 122 self.assertEquals('hello', self.echo('hello')) 123 self.assertEquals(11, self.get_answer()) 124 self.adb.Push('this_file', 'that_file') 125 self.assertEquals(12, self.get_answer()) 126 127 def testAsserCalls_succeeds_withAction(self): 128 with self.assertCall( 129 self.call.adb.Shell('echo hello'), self.ShellError()): 130 with self.assertRaises(ValueError): 131 self.adb.Shell('echo hello') 132 133 def testAssertCalls_fails_tooManyCalls(self): 134 with self.assertRaises(AssertionError): 135 with self.assertCalls(self.call.adb.IsOnline()): 136 self.adb.IsOnline() 137 self.adb.IsOnline() 138 139 def testAssertCalls_fails_tooFewCalls(self): 140 with self.assertRaises(AssertionError): 141 with self.assertCalls(self.call.adb.IsOnline()): 142 pass 143 144 def testAssertCalls_succeeds_extraCalls(self): 145 # we are not watching Reboot, so the assertion succeeds 146 with self.assertCalls(self.call.adb.IsOnline()): 147 self.adb.IsOnline() 148 self.adb.Reboot() 149 150 def testAssertCalls_fails_extraCalls(self): 151 self.watchCalls([self.call.adb.Reboot]) 152 # this time we are also watching Reboot, so the assertion fails 153 with self.assertRaises(AssertionError): 154 with self.assertCalls(self.call.adb.IsOnline()): 155 self.adb.IsOnline() 156 self.adb.Reboot() 157 158 def testAssertCalls_succeeds_NoCalls(self): 159 self.watchMethodCalls(self.call.adb) # we are watching all adb methods 160 with self.assertCalls(): 161 pass 162 163 def testAssertCalls_fails_NoCalls(self): 164 self.watchMethodCalls(self.call.adb) 165 with self.assertRaises(AssertionError): 166 with self.assertCalls(): 167 self.adb.IsOnline() 168 169 170 if __name__ == '__main__': 171 logging.getLogger().setLevel(logging.DEBUG) 172 unittest.main(verbosity=2) 173 174
