Antoine Pitrou | 0715b9f | 2013-09-14 19:45:47 +0200 | [diff] [blame] | 1 | import contextlib |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 2 | import difflib |
| 3 | import pprint |
Michael Foord | 8ca6d98 | 2010-11-20 15:34:26 +0000 | [diff] [blame] | 4 | import pickle |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 5 | import re |
| 6 | import sys |
Antoine Pitrou | 0715b9f | 2013-09-14 19:45:47 +0200 | [diff] [blame] | 7 | import logging |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 8 | import warnings |
Benjamin Peterson | b6ffa79 | 2011-07-14 12:48:25 -0500 | [diff] [blame] | 9 | import weakref |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 10 | import inspect |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 11 | |
| 12 | from copy import deepcopy |
| 13 | from test import support |
| 14 | |
| 15 | import unittest |
| 16 | |
Ezio Melotti | 1241c47 | 2014-08-07 03:20:22 +0300 | [diff] [blame] | 17 | from unittest.test.support import ( |
Antoine Pitrou | c9b3ef2 | 2013-03-20 20:16:47 +0100 | [diff] [blame] | 18 | TestEquality, TestHashing, LoggingResult, LegacyLoggingResult, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 19 | ResultWithNoStartTestRunStopTestRun |
| 20 | ) |
Antoine Pitrou | 0715b9f | 2013-09-14 19:45:47 +0200 | [diff] [blame] | 21 | from test.support import captured_stderr |
| 22 | |
| 23 | |
| 24 | log_foo = logging.getLogger('foo') |
| 25 | log_foobar = logging.getLogger('foo.bar') |
| 26 | log_quux = logging.getLogger('quux') |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 27 | |
| 28 | |
| 29 | class Test(object): |
| 30 | "Keep these TestCase classes out of the main namespace" |
| 31 | |
| 32 | class Foo(unittest.TestCase): |
| 33 | def runTest(self): pass |
| 34 | def test1(self): pass |
| 35 | |
| 36 | class Bar(Foo): |
| 37 | def test2(self): pass |
| 38 | |
| 39 | class LoggingTestCase(unittest.TestCase): |
| 40 | """A test case which logs its calls.""" |
| 41 | |
| 42 | def __init__(self, events): |
| 43 | super(Test.LoggingTestCase, self).__init__('test') |
| 44 | self.events = events |
| 45 | |
| 46 | def setUp(self): |
| 47 | self.events.append('setUp') |
| 48 | |
| 49 | def test(self): |
| 50 | self.events.append('test') |
| 51 | |
| 52 | def tearDown(self): |
| 53 | self.events.append('tearDown') |
| 54 | |
| 55 | |
| 56 | class Test_TestCase(unittest.TestCase, TestEquality, TestHashing): |
| 57 | |
| 58 | ### Set up attributes used by inherited tests |
| 59 | ################################################################ |
| 60 | |
| 61 | # Used by TestHashing.test_hash and TestEquality.test_eq |
| 62 | eq_pairs = [(Test.Foo('test1'), Test.Foo('test1'))] |
| 63 | |
| 64 | # Used by TestEquality.test_ne |
| 65 | ne_pairs = [(Test.Foo('test1'), Test.Foo('runTest')), |
| 66 | (Test.Foo('test1'), Test.Bar('test1')), |
| 67 | (Test.Foo('test1'), Test.Bar('test2'))] |
| 68 | |
| 69 | ################################################################ |
| 70 | ### /Set up attributes used by inherited tests |
| 71 | |
| 72 | |
| 73 | # "class TestCase([methodName])" |
| 74 | # ... |
| 75 | # "Each instance of TestCase will run a single test method: the |
| 76 | # method named methodName." |
| 77 | # ... |
| 78 | # "methodName defaults to "runTest"." |
| 79 | # |
| 80 | # Make sure it really is optional, and that it defaults to the proper |
| 81 | # thing. |
| 82 | def test_init__no_test_name(self): |
| 83 | class Test(unittest.TestCase): |
| 84 | def runTest(self): raise MyException() |
| 85 | def test(self): pass |
| 86 | |
| 87 | self.assertEqual(Test().id()[-13:], '.Test.runTest') |
| 88 | |
Michael Foord | 32e1d83 | 2011-01-03 17:00:11 +0000 | [diff] [blame] | 89 | # test that TestCase can be instantiated with no args |
| 90 | # primarily for use at the interactive interpreter |
| 91 | test = unittest.TestCase() |
| 92 | test.assertEqual(3, 3) |
| 93 | with test.assertRaises(test.failureException): |
| 94 | test.assertEqual(3, 2) |
| 95 | |
| 96 | with self.assertRaises(AttributeError): |
| 97 | test.run() |
| 98 | |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 99 | # "class TestCase([methodName])" |
| 100 | # ... |
| 101 | # "Each instance of TestCase will run a single test method: the |
| 102 | # method named methodName." |
| 103 | def test_init__test_name__valid(self): |
| 104 | class Test(unittest.TestCase): |
| 105 | def runTest(self): raise MyException() |
| 106 | def test(self): pass |
| 107 | |
| 108 | self.assertEqual(Test('test').id()[-10:], '.Test.test') |
| 109 | |
| 110 | # "class TestCase([methodName])" |
| 111 | # ... |
| 112 | # "Each instance of TestCase will run a single test method: the |
| 113 | # method named methodName." |
| 114 | def test_init__test_name__invalid(self): |
| 115 | class Test(unittest.TestCase): |
| 116 | def runTest(self): raise MyException() |
| 117 | def test(self): pass |
| 118 | |
| 119 | try: |
| 120 | Test('testfoo') |
| 121 | except ValueError: |
| 122 | pass |
| 123 | else: |
| 124 | self.fail("Failed to raise ValueError") |
| 125 | |
| 126 | # "Return the number of tests represented by the this test object. For |
| 127 | # TestCase instances, this will always be 1" |
| 128 | def test_countTestCases(self): |
| 129 | class Foo(unittest.TestCase): |
| 130 | def test(self): pass |
| 131 | |
| 132 | self.assertEqual(Foo('test').countTestCases(), 1) |
| 133 | |
| 134 | # "Return the default type of test result object to be used to run this |
| 135 | # test. For TestCase instances, this will always be |
| 136 | # unittest.TestResult; subclasses of TestCase should |
| 137 | # override this as necessary." |
| 138 | def test_defaultTestResult(self): |
| 139 | class Foo(unittest.TestCase): |
| 140 | def runTest(self): |
| 141 | pass |
| 142 | |
| 143 | result = Foo().defaultTestResult() |
| 144 | self.assertEqual(type(result), unittest.TestResult) |
| 145 | |
| 146 | # "When a setUp() method is defined, the test runner will run that method |
| 147 | # prior to each test. Likewise, if a tearDown() method is defined, the |
| 148 | # test runner will invoke that method after each test. In the example, |
| 149 | # setUp() was used to create a fresh sequence for each test." |
| 150 | # |
| 151 | # Make sure the proper call order is maintained, even if setUp() raises |
| 152 | # an exception. |
| 153 | def test_run_call_order__error_in_setUp(self): |
| 154 | events = [] |
| 155 | result = LoggingResult(events) |
| 156 | |
| 157 | class Foo(Test.LoggingTestCase): |
| 158 | def setUp(self): |
| 159 | super(Foo, self).setUp() |
| 160 | raise RuntimeError('raised by Foo.setUp') |
| 161 | |
| 162 | Foo(events).run(result) |
| 163 | expected = ['startTest', 'setUp', 'addError', 'stopTest'] |
| 164 | self.assertEqual(events, expected) |
| 165 | |
| 166 | # "With a temporary result stopTestRun is called when setUp errors. |
| 167 | def test_run_call_order__error_in_setUp_default_result(self): |
| 168 | events = [] |
| 169 | |
| 170 | class Foo(Test.LoggingTestCase): |
| 171 | def defaultTestResult(self): |
| 172 | return LoggingResult(self.events) |
| 173 | |
| 174 | def setUp(self): |
| 175 | super(Foo, self).setUp() |
| 176 | raise RuntimeError('raised by Foo.setUp') |
| 177 | |
| 178 | Foo(events).run() |
| 179 | expected = ['startTestRun', 'startTest', 'setUp', 'addError', |
| 180 | 'stopTest', 'stopTestRun'] |
| 181 | self.assertEqual(events, expected) |
| 182 | |
| 183 | # "When a setUp() method is defined, the test runner will run that method |
| 184 | # prior to each test. Likewise, if a tearDown() method is defined, the |
| 185 | # test runner will invoke that method after each test. In the example, |
| 186 | # setUp() was used to create a fresh sequence for each test." |
| 187 | # |
| 188 | # Make sure the proper call order is maintained, even if the test raises |
| 189 | # an error (as opposed to a failure). |
| 190 | def test_run_call_order__error_in_test(self): |
| 191 | events = [] |
| 192 | result = LoggingResult(events) |
| 193 | |
| 194 | class Foo(Test.LoggingTestCase): |
| 195 | def test(self): |
| 196 | super(Foo, self).test() |
| 197 | raise RuntimeError('raised by Foo.test') |
| 198 | |
Michael Foord | b3468f7 | 2010-12-19 03:19:47 +0000 | [diff] [blame] | 199 | expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 200 | 'addError', 'stopTest'] |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 201 | Foo(events).run(result) |
| 202 | self.assertEqual(events, expected) |
| 203 | |
| 204 | # "With a default result, an error in the test still results in stopTestRun |
| 205 | # being called." |
| 206 | def test_run_call_order__error_in_test_default_result(self): |
| 207 | events = [] |
| 208 | |
| 209 | class Foo(Test.LoggingTestCase): |
| 210 | def defaultTestResult(self): |
| 211 | return LoggingResult(self.events) |
| 212 | |
| 213 | def test(self): |
| 214 | super(Foo, self).test() |
| 215 | raise RuntimeError('raised by Foo.test') |
| 216 | |
Michael Foord | b3468f7 | 2010-12-19 03:19:47 +0000 | [diff] [blame] | 217 | expected = ['startTestRun', 'startTest', 'setUp', 'test', |
| 218 | 'tearDown', 'addError', 'stopTest', 'stopTestRun'] |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 219 | Foo(events).run() |
| 220 | self.assertEqual(events, expected) |
| 221 | |
| 222 | # "When a setUp() method is defined, the test runner will run that method |
| 223 | # prior to each test. Likewise, if a tearDown() method is defined, the |
| 224 | # test runner will invoke that method after each test. In the example, |
| 225 | # setUp() was used to create a fresh sequence for each test." |
| 226 | # |
| 227 | # Make sure the proper call order is maintained, even if the test signals |
| 228 | # a failure (as opposed to an error). |
| 229 | def test_run_call_order__failure_in_test(self): |
| 230 | events = [] |
| 231 | result = LoggingResult(events) |
| 232 | |
| 233 | class Foo(Test.LoggingTestCase): |
| 234 | def test(self): |
| 235 | super(Foo, self).test() |
| 236 | self.fail('raised by Foo.test') |
| 237 | |
Michael Foord | b3468f7 | 2010-12-19 03:19:47 +0000 | [diff] [blame] | 238 | expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 239 | 'addFailure', 'stopTest'] |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 240 | Foo(events).run(result) |
| 241 | self.assertEqual(events, expected) |
| 242 | |
| 243 | # "When a test fails with a default result stopTestRun is still called." |
| 244 | def test_run_call_order__failure_in_test_default_result(self): |
| 245 | |
| 246 | class Foo(Test.LoggingTestCase): |
| 247 | def defaultTestResult(self): |
| 248 | return LoggingResult(self.events) |
| 249 | def test(self): |
| 250 | super(Foo, self).test() |
| 251 | self.fail('raised by Foo.test') |
| 252 | |
Michael Foord | b3468f7 | 2010-12-19 03:19:47 +0000 | [diff] [blame] | 253 | expected = ['startTestRun', 'startTest', 'setUp', 'test', |
| 254 | 'tearDown', 'addFailure', 'stopTest', 'stopTestRun'] |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 255 | events = [] |
| 256 | Foo(events).run() |
| 257 | self.assertEqual(events, expected) |
| 258 | |
| 259 | # "When a setUp() method is defined, the test runner will run that method |
| 260 | # prior to each test. Likewise, if a tearDown() method is defined, the |
| 261 | # test runner will invoke that method after each test. In the example, |
| 262 | # setUp() was used to create a fresh sequence for each test." |
| 263 | # |
| 264 | # Make sure the proper call order is maintained, even if tearDown() raises |
| 265 | # an exception. |
| 266 | def test_run_call_order__error_in_tearDown(self): |
| 267 | events = [] |
| 268 | result = LoggingResult(events) |
| 269 | |
| 270 | class Foo(Test.LoggingTestCase): |
| 271 | def tearDown(self): |
| 272 | super(Foo, self).tearDown() |
| 273 | raise RuntimeError('raised by Foo.tearDown') |
| 274 | |
| 275 | Foo(events).run(result) |
| 276 | expected = ['startTest', 'setUp', 'test', 'tearDown', 'addError', |
| 277 | 'stopTest'] |
| 278 | self.assertEqual(events, expected) |
| 279 | |
| 280 | # "When tearDown errors with a default result stopTestRun is still called." |
| 281 | def test_run_call_order__error_in_tearDown_default_result(self): |
| 282 | |
| 283 | class Foo(Test.LoggingTestCase): |
| 284 | def defaultTestResult(self): |
| 285 | return LoggingResult(self.events) |
| 286 | def tearDown(self): |
| 287 | super(Foo, self).tearDown() |
| 288 | raise RuntimeError('raised by Foo.tearDown') |
| 289 | |
| 290 | events = [] |
| 291 | Foo(events).run() |
| 292 | expected = ['startTestRun', 'startTest', 'setUp', 'test', 'tearDown', |
| 293 | 'addError', 'stopTest', 'stopTestRun'] |
| 294 | self.assertEqual(events, expected) |
| 295 | |
| 296 | # "TestCase.run() still works when the defaultTestResult is a TestResult |
| 297 | # that does not support startTestRun and stopTestRun. |
| 298 | def test_run_call_order_default_result(self): |
| 299 | |
| 300 | class Foo(unittest.TestCase): |
| 301 | def defaultTestResult(self): |
| 302 | return ResultWithNoStartTestRunStopTestRun() |
| 303 | def test(self): |
| 304 | pass |
| 305 | |
| 306 | Foo('test').run() |
| 307 | |
Antoine Pitrou | c9b3ef2 | 2013-03-20 20:16:47 +0100 | [diff] [blame] | 308 | def _check_call_order__subtests(self, result, events, expected_events): |
| 309 | class Foo(Test.LoggingTestCase): |
| 310 | def test(self): |
| 311 | super(Foo, self).test() |
| 312 | for i in [1, 2, 3]: |
| 313 | with self.subTest(i=i): |
| 314 | if i == 1: |
| 315 | self.fail('failure') |
| 316 | for j in [2, 3]: |
| 317 | with self.subTest(j=j): |
| 318 | if i * j == 6: |
| 319 | raise RuntimeError('raised by Foo.test') |
| 320 | 1 / 0 |
| 321 | |
| 322 | # Order is the following: |
| 323 | # i=1 => subtest failure |
| 324 | # i=2, j=2 => subtest success |
| 325 | # i=2, j=3 => subtest error |
| 326 | # i=3, j=2 => subtest error |
| 327 | # i=3, j=3 => subtest success |
| 328 | # toplevel => error |
| 329 | Foo(events).run(result) |
| 330 | self.assertEqual(events, expected_events) |
| 331 | |
| 332 | def test_run_call_order__subtests(self): |
| 333 | events = [] |
| 334 | result = LoggingResult(events) |
| 335 | expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 336 | 'addSubTestFailure', 'addSubTestSuccess', |
| 337 | 'addSubTestFailure', 'addSubTestFailure', |
| 338 | 'addSubTestSuccess', 'addError', 'stopTest'] |
| 339 | self._check_call_order__subtests(result, events, expected) |
| 340 | |
| 341 | def test_run_call_order__subtests_legacy(self): |
Berker Peksag | e39682b | 2016-07-01 12:17:05 +0300 | [diff] [blame] | 342 | # With a legacy result object (without an addSubTest method), |
Antoine Pitrou | c9b3ef2 | 2013-03-20 20:16:47 +0100 | [diff] [blame] | 343 | # text execution stops after the first subtest failure. |
| 344 | events = [] |
| 345 | result = LegacyLoggingResult(events) |
| 346 | expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 347 | 'addFailure', 'stopTest'] |
| 348 | self._check_call_order__subtests(result, events, expected) |
| 349 | |
| 350 | def _check_call_order__subtests_success(self, result, events, expected_events): |
| 351 | class Foo(Test.LoggingTestCase): |
| 352 | def test(self): |
| 353 | super(Foo, self).test() |
| 354 | for i in [1, 2]: |
| 355 | with self.subTest(i=i): |
| 356 | for j in [2, 3]: |
| 357 | with self.subTest(j=j): |
| 358 | pass |
| 359 | |
| 360 | Foo(events).run(result) |
| 361 | self.assertEqual(events, expected_events) |
| 362 | |
| 363 | def test_run_call_order__subtests_success(self): |
| 364 | events = [] |
| 365 | result = LoggingResult(events) |
| 366 | # The 6 subtest successes are individually recorded, in addition |
| 367 | # to the whole test success. |
| 368 | expected = (['startTest', 'setUp', 'test', 'tearDown'] |
| 369 | + 6 * ['addSubTestSuccess'] |
| 370 | + ['addSuccess', 'stopTest']) |
| 371 | self._check_call_order__subtests_success(result, events, expected) |
| 372 | |
| 373 | def test_run_call_order__subtests_success_legacy(self): |
| 374 | # With a legacy result, only the whole test success is recorded. |
| 375 | events = [] |
| 376 | result = LegacyLoggingResult(events) |
| 377 | expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 378 | 'addSuccess', 'stopTest'] |
| 379 | self._check_call_order__subtests_success(result, events, expected) |
| 380 | |
| 381 | def test_run_call_order__subtests_failfast(self): |
| 382 | events = [] |
| 383 | result = LoggingResult(events) |
| 384 | result.failfast = True |
| 385 | |
| 386 | class Foo(Test.LoggingTestCase): |
| 387 | def test(self): |
| 388 | super(Foo, self).test() |
| 389 | with self.subTest(i=1): |
| 390 | self.fail('failure') |
| 391 | with self.subTest(i=2): |
| 392 | self.fail('failure') |
| 393 | self.fail('failure') |
| 394 | |
| 395 | expected = ['startTest', 'setUp', 'test', 'tearDown', |
| 396 | 'addSubTestFailure', 'stopTest'] |
| 397 | Foo(events).run(result) |
| 398 | self.assertEqual(events, expected) |
| 399 | |
Antoine Pitrou | 18f2298 | 2014-11-23 15:55:11 +0100 | [diff] [blame] | 400 | def test_subtests_failfast(self): |
| 401 | # Ensure proper test flow with subtests and failfast (issue #22894) |
| 402 | events = [] |
| 403 | |
| 404 | class Foo(unittest.TestCase): |
| 405 | def test_a(self): |
| 406 | with self.subTest(): |
| 407 | events.append('a1') |
| 408 | events.append('a2') |
| 409 | |
| 410 | def test_b(self): |
| 411 | with self.subTest(): |
| 412 | events.append('b1') |
| 413 | with self.subTest(): |
| 414 | self.fail('failure') |
| 415 | events.append('b2') |
| 416 | |
| 417 | def test_c(self): |
| 418 | events.append('c') |
| 419 | |
| 420 | result = unittest.TestResult() |
| 421 | result.failfast = True |
| 422 | suite = unittest.makeSuite(Foo) |
| 423 | suite.run(result) |
| 424 | |
| 425 | expected = ['a1', 'a2', 'b1'] |
| 426 | self.assertEqual(events, expected) |
| 427 | |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 428 | # "This class attribute gives the exception raised by the test() method. |
| 429 | # If a test framework needs to use a specialized exception, possibly to |
| 430 | # carry additional information, it must subclass this exception in |
| 431 | # order to ``play fair'' with the framework. The initial value of this |
| 432 | # attribute is AssertionError" |
| 433 | def test_failureException__default(self): |
| 434 | class Foo(unittest.TestCase): |
| 435 | def test(self): |
| 436 | pass |
| 437 | |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 438 | self.assertIs(Foo('test').failureException, AssertionError) |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 439 | |
| 440 | # "This class attribute gives the exception raised by the test() method. |
| 441 | # If a test framework needs to use a specialized exception, possibly to |
| 442 | # carry additional information, it must subclass this exception in |
| 443 | # order to ``play fair'' with the framework." |
| 444 | # |
| 445 | # Make sure TestCase.run() respects the designated failureException |
| 446 | def test_failureException__subclassing__explicit_raise(self): |
| 447 | events = [] |
| 448 | result = LoggingResult(events) |
| 449 | |
| 450 | class Foo(unittest.TestCase): |
| 451 | def test(self): |
| 452 | raise RuntimeError() |
| 453 | |
| 454 | failureException = RuntimeError |
| 455 | |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 456 | self.assertIs(Foo('test').failureException, RuntimeError) |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 457 | |
| 458 | |
| 459 | Foo('test').run(result) |
| 460 | expected = ['startTest', 'addFailure', 'stopTest'] |
| 461 | self.assertEqual(events, expected) |
| 462 | |
| 463 | # "This class attribute gives the exception raised by the test() method. |
| 464 | # If a test framework needs to use a specialized exception, possibly to |
| 465 | # carry additional information, it must subclass this exception in |
| 466 | # order to ``play fair'' with the framework." |
| 467 | # |
| 468 | # Make sure TestCase.run() respects the designated failureException |
| 469 | def test_failureException__subclassing__implicit_raise(self): |
| 470 | events = [] |
| 471 | result = LoggingResult(events) |
| 472 | |
| 473 | class Foo(unittest.TestCase): |
| 474 | def test(self): |
| 475 | self.fail("foo") |
| 476 | |
| 477 | failureException = RuntimeError |
| 478 | |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 479 | self.assertIs(Foo('test').failureException, RuntimeError) |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 480 | |
| 481 | |
| 482 | Foo('test').run(result) |
| 483 | expected = ['startTest', 'addFailure', 'stopTest'] |
| 484 | self.assertEqual(events, expected) |
| 485 | |
| 486 | # "The default implementation does nothing." |
| 487 | def test_setUp(self): |
| 488 | class Foo(unittest.TestCase): |
| 489 | def runTest(self): |
| 490 | pass |
| 491 | |
| 492 | # ... and nothing should happen |
| 493 | Foo().setUp() |
| 494 | |
| 495 | # "The default implementation does nothing." |
| 496 | def test_tearDown(self): |
| 497 | class Foo(unittest.TestCase): |
| 498 | def runTest(self): |
| 499 | pass |
| 500 | |
| 501 | # ... and nothing should happen |
| 502 | Foo().tearDown() |
| 503 | |
| 504 | # "Return a string identifying the specific test case." |
| 505 | # |
| 506 | # Because of the vague nature of the docs, I'm not going to lock this |
| 507 | # test down too much. Really all that can be asserted is that the id() |
| 508 | # will be a string (either 8-byte or unicode -- again, because the docs |
| 509 | # just say "string") |
| 510 | def test_id(self): |
| 511 | class Foo(unittest.TestCase): |
| 512 | def runTest(self): |
| 513 | pass |
| 514 | |
| 515 | self.assertIsInstance(Foo().id(), str) |
| 516 | |
| 517 | |
Michael Foord | 1341bb0 | 2011-03-14 19:01:46 -0400 | [diff] [blame] | 518 | # "If result is omitted or None, a temporary result object is created, |
| 519 | # used, and is made available to the caller. As TestCase owns the |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 520 | # temporary result startTestRun and stopTestRun are called. |
| 521 | |
| 522 | def test_run__uses_defaultTestResult(self): |
| 523 | events = [] |
Michael Foord | 1341bb0 | 2011-03-14 19:01:46 -0400 | [diff] [blame] | 524 | defaultResult = LoggingResult(events) |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 525 | |
| 526 | class Foo(unittest.TestCase): |
| 527 | def test(self): |
| 528 | events.append('test') |
| 529 | |
| 530 | def defaultTestResult(self): |
Michael Foord | 1341bb0 | 2011-03-14 19:01:46 -0400 | [diff] [blame] | 531 | return defaultResult |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 532 | |
| 533 | # Make run() find a result object on its own |
Michael Foord | 1341bb0 | 2011-03-14 19:01:46 -0400 | [diff] [blame] | 534 | result = Foo('test').run() |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 535 | |
Michael Foord | 1341bb0 | 2011-03-14 19:01:46 -0400 | [diff] [blame] | 536 | self.assertIs(result, defaultResult) |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 537 | expected = ['startTestRun', 'startTest', 'test', 'addSuccess', |
| 538 | 'stopTest', 'stopTestRun'] |
| 539 | self.assertEqual(events, expected) |
| 540 | |
Michael Foord | 1341bb0 | 2011-03-14 19:01:46 -0400 | [diff] [blame] | 541 | |
| 542 | # "The result object is returned to run's caller" |
| 543 | def test_run__returns_given_result(self): |
| 544 | |
| 545 | class Foo(unittest.TestCase): |
| 546 | def test(self): |
| 547 | pass |
| 548 | |
| 549 | result = unittest.TestResult() |
| 550 | |
| 551 | retval = Foo('test').run(result) |
| 552 | self.assertIs(retval, result) |
| 553 | |
| 554 | |
| 555 | # "The same effect [as method run] may be had by simply calling the |
| 556 | # TestCase instance." |
| 557 | def test_call__invoking_an_instance_delegates_to_run(self): |
| 558 | resultIn = unittest.TestResult() |
| 559 | resultOut = unittest.TestResult() |
| 560 | |
| 561 | class Foo(unittest.TestCase): |
| 562 | def test(self): |
| 563 | pass |
| 564 | |
| 565 | def run(self, result): |
| 566 | self.assertIs(result, resultIn) |
| 567 | return resultOut |
| 568 | |
| 569 | retval = Foo('test')(resultIn) |
| 570 | |
| 571 | self.assertIs(retval, resultOut) |
| 572 | |
| 573 | |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 574 | def testShortDescriptionWithoutDocstring(self): |
| 575 | self.assertIsNone(self.shortDescription()) |
| 576 | |
| 577 | @unittest.skipIf(sys.flags.optimize >= 2, |
| 578 | "Docstrings are omitted with -O2 and above") |
| 579 | def testShortDescriptionWithOneLineDocstring(self): |
| 580 | """Tests shortDescription() for a method with a docstring.""" |
| 581 | self.assertEqual( |
| 582 | self.shortDescription(), |
| 583 | 'Tests shortDescription() for a method with a docstring.') |
| 584 | |
| 585 | @unittest.skipIf(sys.flags.optimize >= 2, |
| 586 | "Docstrings are omitted with -O2 and above") |
| 587 | def testShortDescriptionWithMultiLineDocstring(self): |
| 588 | """Tests shortDescription() for a method with a longer docstring. |
| 589 | |
| 590 | This method ensures that only the first line of a docstring is |
| 591 | returned used in the short description, no matter how long the |
| 592 | whole thing is. |
| 593 | """ |
| 594 | self.assertEqual( |
| 595 | self.shortDescription(), |
| 596 | 'Tests shortDescription() for a method with a longer ' |
| 597 | 'docstring.') |
| 598 | |
| 599 | def testAddTypeEqualityFunc(self): |
| 600 | class SadSnake(object): |
| 601 | """Dummy class for test_addTypeEqualityFunc.""" |
| 602 | s1, s2 = SadSnake(), SadSnake() |
| 603 | self.assertFalse(s1 == s2) |
| 604 | def AllSnakesCreatedEqual(a, b, msg=None): |
| 605 | return type(a) == type(b) == SadSnake |
| 606 | self.addTypeEqualityFunc(SadSnake, AllSnakesCreatedEqual) |
| 607 | self.assertEqual(s1, s2) |
| 608 | # No this doesn't clean up and remove the SadSnake equality func |
| 609 | # from this TestCase instance but since its a local nothing else |
| 610 | # will ever notice that. |
| 611 | |
| 612 | def testAssertIs(self): |
| 613 | thing = object() |
| 614 | self.assertIs(thing, thing) |
| 615 | self.assertRaises(self.failureException, self.assertIs, thing, object()) |
| 616 | |
| 617 | def testAssertIsNot(self): |
| 618 | thing = object() |
| 619 | self.assertIsNot(thing, object()) |
| 620 | self.assertRaises(self.failureException, self.assertIsNot, thing, thing) |
| 621 | |
| 622 | def testAssertIsInstance(self): |
| 623 | thing = [] |
| 624 | self.assertIsInstance(thing, list) |
| 625 | self.assertRaises(self.failureException, self.assertIsInstance, |
| 626 | thing, dict) |
| 627 | |
| 628 | def testAssertNotIsInstance(self): |
| 629 | thing = [] |
| 630 | self.assertNotIsInstance(thing, dict) |
| 631 | self.assertRaises(self.failureException, self.assertNotIsInstance, |
| 632 | thing, list) |
| 633 | |
| 634 | def testAssertIn(self): |
| 635 | animals = {'monkey': 'banana', 'cow': 'grass', 'seal': 'fish'} |
| 636 | |
| 637 | self.assertIn('a', 'abc') |
| 638 | self.assertIn(2, [1, 2, 3]) |
| 639 | self.assertIn('monkey', animals) |
| 640 | |
| 641 | self.assertNotIn('d', 'abc') |
| 642 | self.assertNotIn(0, [1, 2, 3]) |
| 643 | self.assertNotIn('otter', animals) |
| 644 | |
| 645 | self.assertRaises(self.failureException, self.assertIn, 'x', 'abc') |
| 646 | self.assertRaises(self.failureException, self.assertIn, 4, [1, 2, 3]) |
| 647 | self.assertRaises(self.failureException, self.assertIn, 'elephant', |
| 648 | animals) |
| 649 | |
| 650 | self.assertRaises(self.failureException, self.assertNotIn, 'c', 'abc') |
| 651 | self.assertRaises(self.failureException, self.assertNotIn, 1, [1, 2, 3]) |
| 652 | self.assertRaises(self.failureException, self.assertNotIn, 'cow', |
| 653 | animals) |
| 654 | |
Ezio Melotti | 0f53501 | 2011-04-03 18:02:13 +0300 | [diff] [blame] | 655 | def testAssertDictContainsSubset(self): |
| 656 | with warnings.catch_warnings(): |
| 657 | warnings.simplefilter("ignore", DeprecationWarning) |
| 658 | |
| 659 | self.assertDictContainsSubset({}, {}) |
| 660 | self.assertDictContainsSubset({}, {'a': 1}) |
| 661 | self.assertDictContainsSubset({'a': 1}, {'a': 1}) |
| 662 | self.assertDictContainsSubset({'a': 1}, {'a': 1, 'b': 2}) |
| 663 | self.assertDictContainsSubset({'a': 1, 'b': 2}, {'a': 1, 'b': 2}) |
| 664 | |
| 665 | with self.assertRaises(self.failureException): |
| 666 | self.assertDictContainsSubset({1: "one"}, {}) |
| 667 | |
| 668 | with self.assertRaises(self.failureException): |
| 669 | self.assertDictContainsSubset({'a': 2}, {'a': 1}) |
| 670 | |
| 671 | with self.assertRaises(self.failureException): |
| 672 | self.assertDictContainsSubset({'c': 1}, {'a': 1}) |
| 673 | |
| 674 | with self.assertRaises(self.failureException): |
| 675 | self.assertDictContainsSubset({'a': 1, 'c': 1}, {'a': 1}) |
| 676 | |
| 677 | with self.assertRaises(self.failureException): |
| 678 | self.assertDictContainsSubset({'a': 1, 'c': 1}, {'a': 1}) |
| 679 | |
| 680 | one = ''.join(chr(i) for i in range(255)) |
| 681 | # this used to cause a UnicodeDecodeError constructing the failure msg |
| 682 | with self.assertRaises(self.failureException): |
| 683 | self.assertDictContainsSubset({'foo': one}, {'foo': '\uFFFD'}) |
| 684 | |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 685 | def testAssertEqual(self): |
| 686 | equal_pairs = [ |
| 687 | ((), ()), |
| 688 | ({}, {}), |
| 689 | ([], []), |
| 690 | (set(), set()), |
| 691 | (frozenset(), frozenset())] |
| 692 | for a, b in equal_pairs: |
| 693 | # This mess of try excepts is to test the assertEqual behavior |
| 694 | # itself. |
| 695 | try: |
| 696 | self.assertEqual(a, b) |
| 697 | except self.failureException: |
| 698 | self.fail('assertEqual(%r, %r) failed' % (a, b)) |
| 699 | try: |
| 700 | self.assertEqual(a, b, msg='foo') |
| 701 | except self.failureException: |
| 702 | self.fail('assertEqual(%r, %r) with msg= failed' % (a, b)) |
| 703 | try: |
| 704 | self.assertEqual(a, b, 'foo') |
| 705 | except self.failureException: |
| 706 | self.fail('assertEqual(%r, %r) with third parameter failed' % |
| 707 | (a, b)) |
| 708 | |
| 709 | unequal_pairs = [ |
| 710 | ((), []), |
| 711 | ({}, set()), |
| 712 | (set([4,1]), frozenset([4,2])), |
| 713 | (frozenset([4,5]), set([2,3])), |
| 714 | (set([3,4]), set([5,4]))] |
| 715 | for a, b in unequal_pairs: |
| 716 | self.assertRaises(self.failureException, self.assertEqual, a, b) |
| 717 | self.assertRaises(self.failureException, self.assertEqual, a, b, |
| 718 | 'foo') |
| 719 | self.assertRaises(self.failureException, self.assertEqual, a, b, |
| 720 | msg='foo') |
| 721 | |
| 722 | def testEquality(self): |
| 723 | self.assertListEqual([], []) |
| 724 | self.assertTupleEqual((), ()) |
| 725 | self.assertSequenceEqual([], ()) |
| 726 | |
| 727 | a = [0, 'a', []] |
| 728 | b = [] |
| 729 | self.assertRaises(unittest.TestCase.failureException, |
| 730 | self.assertListEqual, a, b) |
| 731 | self.assertRaises(unittest.TestCase.failureException, |
| 732 | self.assertListEqual, tuple(a), tuple(b)) |
| 733 | self.assertRaises(unittest.TestCase.failureException, |
| 734 | self.assertSequenceEqual, a, tuple(b)) |
| 735 | |
| 736 | b.extend(a) |
| 737 | self.assertListEqual(a, b) |
| 738 | self.assertTupleEqual(tuple(a), tuple(b)) |
| 739 | self.assertSequenceEqual(a, tuple(b)) |
| 740 | self.assertSequenceEqual(tuple(a), b) |
| 741 | |
| 742 | self.assertRaises(self.failureException, self.assertListEqual, |
| 743 | a, tuple(b)) |
| 744 | self.assertRaises(self.failureException, self.assertTupleEqual, |
| 745 | tuple(a), b) |
| 746 | self.assertRaises(self.failureException, self.assertListEqual, None, b) |
| 747 | self.assertRaises(self.failureException, self.assertTupleEqual, None, |
| 748 | tuple(b)) |
| 749 | self.assertRaises(self.failureException, self.assertSequenceEqual, |
| 750 | None, tuple(b)) |
| 751 | self.assertRaises(self.failureException, self.assertListEqual, 1, 1) |
| 752 | self.assertRaises(self.failureException, self.assertTupleEqual, 1, 1) |
| 753 | self.assertRaises(self.failureException, self.assertSequenceEqual, |
| 754 | 1, 1) |
| 755 | |
| 756 | self.assertDictEqual({}, {}) |
| 757 | |
| 758 | c = { 'x': 1 } |
| 759 | d = {} |
| 760 | self.assertRaises(unittest.TestCase.failureException, |
| 761 | self.assertDictEqual, c, d) |
| 762 | |
| 763 | d.update(c) |
| 764 | self.assertDictEqual(c, d) |
| 765 | |
| 766 | d['x'] = 0 |
| 767 | self.assertRaises(unittest.TestCase.failureException, |
| 768 | self.assertDictEqual, c, d, 'These are unequal') |
| 769 | |
| 770 | self.assertRaises(self.failureException, self.assertDictEqual, None, d) |
| 771 | self.assertRaises(self.failureException, self.assertDictEqual, [], d) |
| 772 | self.assertRaises(self.failureException, self.assertDictEqual, 1, 1) |
| 773 | |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 774 | def testAssertSequenceEqualMaxDiff(self): |
Michael Foord | 085dfd3 | 2010-06-05 12:17:02 +0000 | [diff] [blame] | 775 | self.assertEqual(self.maxDiff, 80*8) |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 776 | seq1 = 'a' + 'x' * 80**2 |
| 777 | seq2 = 'b' + 'x' * 80**2 |
| 778 | diff = '\n'.join(difflib.ndiff(pprint.pformat(seq1).splitlines(), |
| 779 | pprint.pformat(seq2).splitlines())) |
Michael Foord | da562f6 | 2010-06-05 21:01:08 +0000 | [diff] [blame] | 780 | # the +1 is the leading \n added by assertSequenceEqual |
| 781 | omitted = unittest.case.DIFF_OMITTED % (len(diff) + 1,) |
Michael Foord | 085dfd3 | 2010-06-05 12:17:02 +0000 | [diff] [blame] | 782 | |
| 783 | self.maxDiff = len(diff)//2 |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 784 | try: |
Michael Foord | 085dfd3 | 2010-06-05 12:17:02 +0000 | [diff] [blame] | 785 | |
| 786 | self.assertSequenceEqual(seq1, seq2) |
| 787 | except self.failureException as e: |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 788 | msg = e.args[0] |
Michael Foord | 085dfd3 | 2010-06-05 12:17:02 +0000 | [diff] [blame] | 789 | else: |
| 790 | self.fail('assertSequenceEqual did not fail.') |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 791 | self.assertLess(len(msg), len(diff)) |
Michael Foord | da562f6 | 2010-06-05 21:01:08 +0000 | [diff] [blame] | 792 | self.assertIn(omitted, msg) |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 793 | |
Michael Foord | 085dfd3 | 2010-06-05 12:17:02 +0000 | [diff] [blame] | 794 | self.maxDiff = len(diff) * 2 |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 795 | try: |
Michael Foord | 085dfd3 | 2010-06-05 12:17:02 +0000 | [diff] [blame] | 796 | self.assertSequenceEqual(seq1, seq2) |
| 797 | except self.failureException as e: |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 798 | msg = e.args[0] |
Michael Foord | 085dfd3 | 2010-06-05 12:17:02 +0000 | [diff] [blame] | 799 | else: |
| 800 | self.fail('assertSequenceEqual did not fail.') |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 801 | self.assertGreater(len(msg), len(diff)) |
Michael Foord | da562f6 | 2010-06-05 21:01:08 +0000 | [diff] [blame] | 802 | self.assertNotIn(omitted, msg) |
Michael Foord | 085dfd3 | 2010-06-05 12:17:02 +0000 | [diff] [blame] | 803 | |
| 804 | self.maxDiff = None |
| 805 | try: |
| 806 | self.assertSequenceEqual(seq1, seq2) |
| 807 | except self.failureException as e: |
| 808 | msg = e.args[0] |
| 809 | else: |
| 810 | self.fail('assertSequenceEqual did not fail.') |
Serhiy Storchaka | 5665bc5 | 2013-11-17 00:12:21 +0200 | [diff] [blame] | 811 | self.assertGreater(len(msg), len(diff)) |
Michael Foord | da562f6 | 2010-06-05 21:01:08 +0000 | [diff] [blame] | 812 | self.assertNotIn(omitted, msg) |
| 813 | |
| 814 | def testTruncateMessage(self): |
| 815 | self.maxDiff = 1 |
| 816 | message = self._truncateMessage('foo', 'bar') |
| 817 | omitted = unittest.case.DIFF_OMITTED % len('bar') |
| 818 | self.assertEqual(message, 'foo' + omitted) |
| 819 | |
| 820 | self.maxDiff = None |
| 821 | message = self._truncateMessage('foo', 'bar') |
| 822 | self.assertEqual(message, 'foobar') |
| 823 | |
Michael Foord | 520ed0a | 2010-06-05 21:12:23 +0000 | [diff] [blame] | 824 | self.maxDiff = 4 |
| 825 | message = self._truncateMessage('foo', 'bar') |
| 826 | self.assertEqual(message, 'foobar') |
| 827 | |
Michael Foord | da562f6 | 2010-06-05 21:01:08 +0000 | [diff] [blame] | 828 | def testAssertDictEqualTruncates(self): |
| 829 | test = unittest.TestCase('assertEqual') |
| 830 | def truncate(msg, diff): |
| 831 | return 'foo' |
| 832 | test._truncateMessage = truncate |
| 833 | try: |
| 834 | test.assertDictEqual({}, {1: 0}) |
| 835 | except self.failureException as e: |
| 836 | self.assertEqual(str(e), 'foo') |
| 837 | else: |
| 838 | self.fail('assertDictEqual did not fail') |
| 839 | |
| 840 | def testAssertMultiLineEqualTruncates(self): |
| 841 | test = unittest.TestCase('assertEqual') |
| 842 | def truncate(msg, diff): |
| 843 | return 'foo' |
| 844 | test._truncateMessage = truncate |
| 845 | try: |
| 846 | test.assertMultiLineEqual('foo', 'bar') |
| 847 | except self.failureException as e: |
| 848 | self.assertEqual(str(e), 'foo') |
| 849 | else: |
| 850 | self.fail('assertMultiLineEqual did not fail') |
Michael Foord | 2034d9a | 2010-06-05 11:27:52 +0000 | [diff] [blame] | 851 | |
Ezio Melotti | edd117f | 2011-04-27 10:20:38 +0300 | [diff] [blame] | 852 | def testAssertEqual_diffThreshold(self): |
| 853 | # check threshold value |
| 854 | self.assertEqual(self._diffThreshold, 2**16) |
| 855 | # disable madDiff to get diff markers |
| 856 | self.maxDiff = None |
| 857 | |
| 858 | # set a lower threshold value and add a cleanup to restore it |
| 859 | old_threshold = self._diffThreshold |
Serhiy Storchaka | 77622f5 | 2013-09-23 23:07:00 +0300 | [diff] [blame] | 860 | self._diffThreshold = 2**5 |
Ezio Melotti | edd117f | 2011-04-27 10:20:38 +0300 | [diff] [blame] | 861 | self.addCleanup(lambda: setattr(self, '_diffThreshold', old_threshold)) |
| 862 | |
| 863 | # under the threshold: diff marker (^) in error message |
Serhiy Storchaka | 77622f5 | 2013-09-23 23:07:00 +0300 | [diff] [blame] | 864 | s = 'x' * (2**4) |
Ezio Melotti | edd117f | 2011-04-27 10:20:38 +0300 | [diff] [blame] | 865 | with self.assertRaises(self.failureException) as cm: |
| 866 | self.assertEqual(s + 'a', s + 'b') |
| 867 | self.assertIn('^', str(cm.exception)) |
| 868 | self.assertEqual(s + 'a', s + 'a') |
| 869 | |
| 870 | # over the threshold: diff not used and marker (^) not in error message |
Serhiy Storchaka | 77622f5 | 2013-09-23 23:07:00 +0300 | [diff] [blame] | 871 | s = 'x' * (2**6) |
Ezio Melotti | edd117f | 2011-04-27 10:20:38 +0300 | [diff] [blame] | 872 | # if the path that uses difflib is taken, _truncateMessage will be |
| 873 | # called -- replace it with explodingTruncation to verify that this |
| 874 | # doesn't happen |
| 875 | def explodingTruncation(message, diff): |
| 876 | raise SystemError('this should not be raised') |
| 877 | old_truncate = self._truncateMessage |
| 878 | self._truncateMessage = explodingTruncation |
| 879 | self.addCleanup(lambda: setattr(self, '_truncateMessage', old_truncate)) |
| 880 | |
| 881 | s1, s2 = s + 'a', s + 'b' |
| 882 | with self.assertRaises(self.failureException) as cm: |
| 883 | self.assertEqual(s1, s2) |
| 884 | self.assertNotIn('^', str(cm.exception)) |
| 885 | self.assertEqual(str(cm.exception), '%r != %r' % (s1, s2)) |
| 886 | self.assertEqual(s + 'a', s + 'a') |
| 887 | |
Serhiy Storchaka | 77622f5 | 2013-09-23 23:07:00 +0300 | [diff] [blame] | 888 | def testAssertEqual_shorten(self): |
| 889 | # set a lower threshold value and add a cleanup to restore it |
| 890 | old_threshold = self._diffThreshold |
| 891 | self._diffThreshold = 0 |
| 892 | self.addCleanup(lambda: setattr(self, '_diffThreshold', old_threshold)) |
| 893 | |
| 894 | s = 'x' * 100 |
| 895 | s1, s2 = s + 'a', s + 'b' |
| 896 | with self.assertRaises(self.failureException) as cm: |
| 897 | self.assertEqual(s1, s2) |
| 898 | c = 'xxxx[35 chars]' + 'x' * 61 |
| 899 | self.assertEqual(str(cm.exception), "'%sa' != '%sb'" % (c, c)) |
| 900 | self.assertEqual(s + 'a', s + 'a') |
| 901 | |
| 902 | p = 'y' * 50 |
| 903 | s1, s2 = s + 'a' + p, s + 'b' + p |
| 904 | with self.assertRaises(self.failureException) as cm: |
| 905 | self.assertEqual(s1, s2) |
| 906 | c = 'xxxx[85 chars]xxxxxxxxxxx' |
Serhiy Storchaka | 77622f5 | 2013-09-23 23:07:00 +0300 | [diff] [blame] | 907 | self.assertEqual(str(cm.exception), "'%sa%s' != '%sb%s'" % (c, p, c, p)) |
| 908 | |
| 909 | p = 'y' * 100 |
| 910 | s1, s2 = s + 'a' + p, s + 'b' + p |
| 911 | with self.assertRaises(self.failureException) as cm: |
| 912 | self.assertEqual(s1, s2) |
| 913 | c = 'xxxx[91 chars]xxxxx' |
| 914 | d = 'y' * 40 + '[56 chars]yyyy' |
| 915 | self.assertEqual(str(cm.exception), "'%sa%s' != '%sb%s'" % (c, d, c, d)) |
| 916 | |
Raymond Hettinger | f954217 | 2010-12-24 10:30:06 +0000 | [diff] [blame] | 917 | def testAssertCountEqual(self): |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 918 | a = object() |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 919 | self.assertCountEqual([1, 2, 3], [3, 2, 1]) |
| 920 | self.assertCountEqual(['foo', 'bar', 'baz'], ['bar', 'baz', 'foo']) |
| 921 | self.assertCountEqual([a, a, 2, 2, 3], (a, 2, 3, a, 2)) |
| 922 | self.assertCountEqual([1, "2", "a", "a"], ["a", "2", True, "a"]) |
| 923 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 924 | [1, 2] + [3] * 100, [1] * 100 + [2, 3]) |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 925 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 926 | [1, "2", "a", "a"], ["a", "2", True, 1]) |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 927 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 928 | [10], [10, 11]) |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 929 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 930 | [10, 11], [10]) |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 931 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 932 | [10, 11, 10], [10, 11]) |
| 933 | |
| 934 | # Test that sequences of unhashable objects can be tested for sameness: |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 935 | self.assertCountEqual([[1, 2], [3, 4], 0], [False, [3, 4], [1, 2]]) |
Raymond Hettinger | 8396124 | 2010-12-24 00:48:47 +0000 | [diff] [blame] | 936 | # Test that iterator of unhashable objects can be tested for sameness: |
| 937 | self.assertCountEqual(iter([1, 2, [], 3, 4]), |
| 938 | iter([1, 2, [], 3, 4])) |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 939 | |
| 940 | # hashable types, but not orderable |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 941 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 942 | [], [divmod, 'x', 1, 5j, 2j, frozenset()]) |
Florent Xicluna | fd1b093 | 2010-03-28 00:25:02 +0000 | [diff] [blame] | 943 | # comparing dicts |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 944 | self.assertCountEqual([{'a': 1}, {'b': 2}], [{'b': 2}, {'a': 1}]) |
luzpaz | a5293b4 | 2017-11-05 07:37:50 -0600 | [diff] [blame] | 945 | # comparing heterogeneous non-hashable sequences |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 946 | self.assertCountEqual([1, 'x', divmod, []], [divmod, [], 'x', 1]) |
| 947 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 948 | [], [divmod, [], 'x', 1, 5j, 2j, set()]) |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 949 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 950 | [[1]], [[2]]) |
| 951 | |
| 952 | # Same elements, but not same sequence length |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 953 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 954 | [1, 1, 2], [2, 1]) |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 955 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 956 | [1, 1, "2", "a", "a"], ["2", "2", True, "a"]) |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 957 | self.assertRaises(self.failureException, self.assertCountEqual, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 958 | [1, {'b': 2}, None, True], [{'b': 2}, True, None]) |
| 959 | |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 960 | # Same elements which don't reliably compare, in |
| 961 | # different order, see issue 10242 |
| 962 | a = [{2,4}, {1,2}] |
| 963 | b = a[::-1] |
| 964 | self.assertCountEqual(a, b) |
| 965 | |
Raymond Hettinger | f954217 | 2010-12-24 10:30:06 +0000 | [diff] [blame] | 966 | # test utility functions supporting assertCountEqual() |
| 967 | |
| 968 | diffs = set(unittest.util._count_diff_all_purpose('aaabccd', 'abbbcce')) |
| 969 | expected = {(3,1,'a'), (1,3,'b'), (1,0,'d'), (0,1,'e')} |
| 970 | self.assertEqual(diffs, expected) |
| 971 | |
| 972 | diffs = unittest.util._count_diff_all_purpose([[]], []) |
| 973 | self.assertEqual(diffs, [(1, 0, [])]) |
| 974 | |
| 975 | diffs = set(unittest.util._count_diff_hashable('aaabccd', 'abbbcce')) |
| 976 | expected = {(3,1,'a'), (1,3,'b'), (1,0,'d'), (0,1,'e')} |
| 977 | self.assertEqual(diffs, expected) |
Raymond Hettinger | 6e165b3 | 2010-11-27 09:31:37 +0000 | [diff] [blame] | 978 | |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 979 | def testAssertSetEqual(self): |
| 980 | set1 = set() |
| 981 | set2 = set() |
| 982 | self.assertSetEqual(set1, set2) |
| 983 | |
| 984 | self.assertRaises(self.failureException, self.assertSetEqual, None, set2) |
| 985 | self.assertRaises(self.failureException, self.assertSetEqual, [], set2) |
| 986 | self.assertRaises(self.failureException, self.assertSetEqual, set1, None) |
| 987 | self.assertRaises(self.failureException, self.assertSetEqual, set1, []) |
| 988 | |
| 989 | set1 = set(['a']) |
| 990 | set2 = set() |
| 991 | self.assertRaises(self.failureException, self.assertSetEqual, set1, set2) |
| 992 | |
| 993 | set1 = set(['a']) |
| 994 | set2 = set(['a']) |
| 995 | self.assertSetEqual(set1, set2) |
| 996 | |
| 997 | set1 = set(['a']) |
| 998 | set2 = set(['a', 'b']) |
| 999 | self.assertRaises(self.failureException, self.assertSetEqual, set1, set2) |
| 1000 | |
| 1001 | set1 = set(['a']) |
| 1002 | set2 = frozenset(['a', 'b']) |
| 1003 | self.assertRaises(self.failureException, self.assertSetEqual, set1, set2) |
| 1004 | |
| 1005 | set1 = set(['a', 'b']) |
| 1006 | set2 = frozenset(['a', 'b']) |
| 1007 | self.assertSetEqual(set1, set2) |
| 1008 | |
| 1009 | set1 = set() |
| 1010 | set2 = "foo" |
| 1011 | self.assertRaises(self.failureException, self.assertSetEqual, set1, set2) |
| 1012 | self.assertRaises(self.failureException, self.assertSetEqual, set2, set1) |
| 1013 | |
| 1014 | # make sure any string formatting is tuple-safe |
| 1015 | set1 = set([(0, 1), (2, 3)]) |
| 1016 | set2 = set([(4, 5)]) |
| 1017 | self.assertRaises(self.failureException, self.assertSetEqual, set1, set2) |
| 1018 | |
| 1019 | def testInequality(self): |
| 1020 | # Try ints |
| 1021 | self.assertGreater(2, 1) |
| 1022 | self.assertGreaterEqual(2, 1) |
| 1023 | self.assertGreaterEqual(1, 1) |
| 1024 | self.assertLess(1, 2) |
| 1025 | self.assertLessEqual(1, 2) |
| 1026 | self.assertLessEqual(1, 1) |
| 1027 | self.assertRaises(self.failureException, self.assertGreater, 1, 2) |
| 1028 | self.assertRaises(self.failureException, self.assertGreater, 1, 1) |
| 1029 | self.assertRaises(self.failureException, self.assertGreaterEqual, 1, 2) |
| 1030 | self.assertRaises(self.failureException, self.assertLess, 2, 1) |
| 1031 | self.assertRaises(self.failureException, self.assertLess, 1, 1) |
| 1032 | self.assertRaises(self.failureException, self.assertLessEqual, 2, 1) |
| 1033 | |
| 1034 | # Try Floats |
| 1035 | self.assertGreater(1.1, 1.0) |
| 1036 | self.assertGreaterEqual(1.1, 1.0) |
| 1037 | self.assertGreaterEqual(1.0, 1.0) |
| 1038 | self.assertLess(1.0, 1.1) |
| 1039 | self.assertLessEqual(1.0, 1.1) |
| 1040 | self.assertLessEqual(1.0, 1.0) |
| 1041 | self.assertRaises(self.failureException, self.assertGreater, 1.0, 1.1) |
| 1042 | self.assertRaises(self.failureException, self.assertGreater, 1.0, 1.0) |
| 1043 | self.assertRaises(self.failureException, self.assertGreaterEqual, 1.0, 1.1) |
| 1044 | self.assertRaises(self.failureException, self.assertLess, 1.1, 1.0) |
| 1045 | self.assertRaises(self.failureException, self.assertLess, 1.0, 1.0) |
| 1046 | self.assertRaises(self.failureException, self.assertLessEqual, 1.1, 1.0) |
| 1047 | |
| 1048 | # Try Strings |
| 1049 | self.assertGreater('bug', 'ant') |
| 1050 | self.assertGreaterEqual('bug', 'ant') |
| 1051 | self.assertGreaterEqual('ant', 'ant') |
| 1052 | self.assertLess('ant', 'bug') |
| 1053 | self.assertLessEqual('ant', 'bug') |
| 1054 | self.assertLessEqual('ant', 'ant') |
| 1055 | self.assertRaises(self.failureException, self.assertGreater, 'ant', 'bug') |
| 1056 | self.assertRaises(self.failureException, self.assertGreater, 'ant', 'ant') |
| 1057 | self.assertRaises(self.failureException, self.assertGreaterEqual, 'ant', 'bug') |
| 1058 | self.assertRaises(self.failureException, self.assertLess, 'bug', 'ant') |
| 1059 | self.assertRaises(self.failureException, self.assertLess, 'ant', 'ant') |
| 1060 | self.assertRaises(self.failureException, self.assertLessEqual, 'bug', 'ant') |
| 1061 | |
| 1062 | # Try bytes |
| 1063 | self.assertGreater(b'bug', b'ant') |
| 1064 | self.assertGreaterEqual(b'bug', b'ant') |
| 1065 | self.assertGreaterEqual(b'ant', b'ant') |
| 1066 | self.assertLess(b'ant', b'bug') |
| 1067 | self.assertLessEqual(b'ant', b'bug') |
| 1068 | self.assertLessEqual(b'ant', b'ant') |
| 1069 | self.assertRaises(self.failureException, self.assertGreater, b'ant', b'bug') |
| 1070 | self.assertRaises(self.failureException, self.assertGreater, b'ant', b'ant') |
| 1071 | self.assertRaises(self.failureException, self.assertGreaterEqual, b'ant', |
| 1072 | b'bug') |
| 1073 | self.assertRaises(self.failureException, self.assertLess, b'bug', b'ant') |
| 1074 | self.assertRaises(self.failureException, self.assertLess, b'ant', b'ant') |
| 1075 | self.assertRaises(self.failureException, self.assertLessEqual, b'bug', b'ant') |
| 1076 | |
| 1077 | def testAssertMultiLineEqual(self): |
| 1078 | sample_text = """\ |
| 1079 | http://www.python.org/doc/2.3/lib/module-unittest.html |
| 1080 | test case |
| 1081 | A test case is the smallest unit of testing. [...] |
| 1082 | """ |
| 1083 | revised_sample_text = """\ |
| 1084 | http://www.python.org/doc/2.4.1/lib/module-unittest.html |
| 1085 | test case |
| 1086 | A test case is the smallest unit of testing. [...] You may provide your |
| 1087 | own implementation that does not subclass from TestCase, of course. |
| 1088 | """ |
Michael Foord | ac76074 | 2010-06-05 13:57:23 +0000 | [diff] [blame] | 1089 | sample_text_error = """\ |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1090 | - http://www.python.org/doc/2.3/lib/module-unittest.html |
| 1091 | ? ^ |
| 1092 | + http://www.python.org/doc/2.4.1/lib/module-unittest.html |
| 1093 | ? ^^^ |
| 1094 | test case |
| 1095 | - A test case is the smallest unit of testing. [...] |
| 1096 | + A test case is the smallest unit of testing. [...] You may provide your |
| 1097 | ? +++++++++++++++++++++ |
| 1098 | + own implementation that does not subclass from TestCase, of course. |
| 1099 | """ |
Michael Foord | ac76074 | 2010-06-05 13:57:23 +0000 | [diff] [blame] | 1100 | self.maxDiff = None |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1101 | try: |
| 1102 | self.assertMultiLineEqual(sample_text, revised_sample_text) |
| 1103 | except self.failureException as e: |
Michael Foord | ac76074 | 2010-06-05 13:57:23 +0000 | [diff] [blame] | 1104 | # need to remove the first line of the error message |
| 1105 | error = str(e).split('\n', 1)[1] |
Robert Collins | c134584 | 2014-10-30 08:16:28 +1300 | [diff] [blame] | 1106 | self.assertEqual(sample_text_error, error) |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1107 | |
Mark Dickinson | d122906 | 2014-04-18 16:08:47 +0100 | [diff] [blame] | 1108 | def testAssertEqualSingleLine(self): |
Michael Foord | c653ce3 | 2010-07-10 13:52:22 +0000 | [diff] [blame] | 1109 | sample_text = "laden swallows fly slowly" |
| 1110 | revised_sample_text = "unladen swallows fly quickly" |
| 1111 | sample_text_error = """\ |
| 1112 | - laden swallows fly slowly |
| 1113 | ? ^^^^ |
| 1114 | + unladen swallows fly quickly |
| 1115 | ? ++ ^^^^^ |
| 1116 | """ |
| 1117 | try: |
| 1118 | self.assertEqual(sample_text, revised_sample_text) |
| 1119 | except self.failureException as e: |
Robert Collins | c134584 | 2014-10-30 08:16:28 +1300 | [diff] [blame] | 1120 | # need to remove the first line of the error message |
Michael Foord | c653ce3 | 2010-07-10 13:52:22 +0000 | [diff] [blame] | 1121 | error = str(e).split('\n', 1)[1] |
Robert Collins | c134584 | 2014-10-30 08:16:28 +1300 | [diff] [blame] | 1122 | self.assertEqual(sample_text_error, error) |
Michael Foord | c653ce3 | 2010-07-10 13:52:22 +0000 | [diff] [blame] | 1123 | |
Serhiy Storchaka | 685fbed | 2016-04-25 08:58:25 +0300 | [diff] [blame] | 1124 | def testEqualityBytesWarning(self): |
| 1125 | if sys.flags.bytes_warning: |
| 1126 | def bytes_warning(): |
| 1127 | return self.assertWarnsRegex(BytesWarning, |
| 1128 | 'Comparison between bytes and string') |
| 1129 | else: |
| 1130 | def bytes_warning(): |
| 1131 | return contextlib.ExitStack() |
| 1132 | |
| 1133 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1134 | self.assertEqual('a', b'a') |
| 1135 | with bytes_warning(): |
| 1136 | self.assertNotEqual('a', b'a') |
| 1137 | |
| 1138 | a = [0, 'a'] |
| 1139 | b = [0, b'a'] |
| 1140 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1141 | self.assertListEqual(a, b) |
| 1142 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1143 | self.assertTupleEqual(tuple(a), tuple(b)) |
| 1144 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1145 | self.assertSequenceEqual(a, tuple(b)) |
| 1146 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1147 | self.assertSequenceEqual(tuple(a), b) |
| 1148 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1149 | self.assertSequenceEqual('a', b'a') |
| 1150 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1151 | self.assertSetEqual(set(a), set(b)) |
| 1152 | |
| 1153 | with self.assertRaises(self.failureException): |
| 1154 | self.assertListEqual(a, tuple(b)) |
| 1155 | with self.assertRaises(self.failureException): |
| 1156 | self.assertTupleEqual(tuple(a), b) |
| 1157 | |
| 1158 | a = [0, b'a'] |
| 1159 | b = [0] |
| 1160 | with self.assertRaises(self.failureException): |
| 1161 | self.assertListEqual(a, b) |
| 1162 | with self.assertRaises(self.failureException): |
| 1163 | self.assertTupleEqual(tuple(a), tuple(b)) |
| 1164 | with self.assertRaises(self.failureException): |
| 1165 | self.assertSequenceEqual(a, tuple(b)) |
| 1166 | with self.assertRaises(self.failureException): |
| 1167 | self.assertSequenceEqual(tuple(a), b) |
| 1168 | with self.assertRaises(self.failureException): |
| 1169 | self.assertSetEqual(set(a), set(b)) |
| 1170 | |
| 1171 | a = [0] |
| 1172 | b = [0, b'a'] |
| 1173 | with self.assertRaises(self.failureException): |
| 1174 | self.assertListEqual(a, b) |
| 1175 | with self.assertRaises(self.failureException): |
| 1176 | self.assertTupleEqual(tuple(a), tuple(b)) |
| 1177 | with self.assertRaises(self.failureException): |
| 1178 | self.assertSequenceEqual(a, tuple(b)) |
| 1179 | with self.assertRaises(self.failureException): |
| 1180 | self.assertSequenceEqual(tuple(a), b) |
| 1181 | with self.assertRaises(self.failureException): |
| 1182 | self.assertSetEqual(set(a), set(b)) |
| 1183 | |
| 1184 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1185 | self.assertDictEqual({'a': 0}, {b'a': 0}) |
| 1186 | with self.assertRaises(self.failureException): |
| 1187 | self.assertDictEqual({}, {b'a': 0}) |
| 1188 | with self.assertRaises(self.failureException): |
| 1189 | self.assertDictEqual({b'a': 0}, {}) |
| 1190 | |
| 1191 | with self.assertRaises(self.failureException): |
| 1192 | self.assertCountEqual([b'a', b'a'], [b'a', b'a', b'a']) |
| 1193 | with bytes_warning(): |
| 1194 | self.assertCountEqual(['a', b'a'], ['a', b'a']) |
| 1195 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1196 | self.assertCountEqual(['a', 'a'], [b'a', b'a']) |
| 1197 | with bytes_warning(), self.assertRaises(self.failureException): |
| 1198 | self.assertCountEqual(['a', 'a', []], [b'a', b'a', []]) |
| 1199 | |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1200 | def testAssertIsNone(self): |
| 1201 | self.assertIsNone(None) |
| 1202 | self.assertRaises(self.failureException, self.assertIsNone, False) |
| 1203 | self.assertIsNotNone('DjZoPloGears on Rails') |
| 1204 | self.assertRaises(self.failureException, self.assertIsNotNone, None) |
| 1205 | |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1206 | def testAssertRegex(self): |
| 1207 | self.assertRegex('asdfabasdf', r'ab+') |
| 1208 | self.assertRaises(self.failureException, self.assertRegex, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1209 | 'saaas', r'aaaa') |
| 1210 | |
Serhiy Storchaka | e130503 | 2015-05-06 19:13:11 +0300 | [diff] [blame] | 1211 | def testAssertRaisesCallable(self): |
| 1212 | class ExceptionMock(Exception): |
| 1213 | pass |
| 1214 | def Stub(): |
| 1215 | raise ExceptionMock('We expect') |
| 1216 | self.assertRaises(ExceptionMock, Stub) |
| 1217 | # A tuple of exception classes is accepted |
| 1218 | self.assertRaises((ValueError, ExceptionMock), Stub) |
| 1219 | # *args and **kwargs also work |
| 1220 | self.assertRaises(ValueError, int, '19', base=8) |
| 1221 | # Failure when no exception is raised |
| 1222 | with self.assertRaises(self.failureException): |
| 1223 | self.assertRaises(ExceptionMock, lambda: 0) |
| 1224 | # Failure when the function is None |
Serhiy Storchaka | 77d5781 | 2018-08-19 10:00:11 +0300 | [diff] [blame^] | 1225 | with self.assertRaises(TypeError): |
Serhiy Storchaka | e130503 | 2015-05-06 19:13:11 +0300 | [diff] [blame] | 1226 | self.assertRaises(ExceptionMock, None) |
| 1227 | # Failure when another exception is raised |
| 1228 | with self.assertRaises(ExceptionMock): |
| 1229 | self.assertRaises(ValueError, Stub) |
| 1230 | |
| 1231 | def testAssertRaisesContext(self): |
| 1232 | class ExceptionMock(Exception): |
| 1233 | pass |
| 1234 | def Stub(): |
| 1235 | raise ExceptionMock('We expect') |
| 1236 | with self.assertRaises(ExceptionMock): |
| 1237 | Stub() |
| 1238 | # A tuple of exception classes is accepted |
| 1239 | with self.assertRaises((ValueError, ExceptionMock)) as cm: |
| 1240 | Stub() |
| 1241 | # The context manager exposes caught exception |
| 1242 | self.assertIsInstance(cm.exception, ExceptionMock) |
| 1243 | self.assertEqual(cm.exception.args[0], 'We expect') |
| 1244 | # *args and **kwargs also work |
| 1245 | with self.assertRaises(ValueError): |
| 1246 | int('19', base=8) |
| 1247 | # Failure when no exception is raised |
| 1248 | with self.assertRaises(self.failureException): |
| 1249 | with self.assertRaises(ExceptionMock): |
| 1250 | pass |
Serhiy Storchaka | df573d6 | 2015-05-16 16:29:50 +0300 | [diff] [blame] | 1251 | # Custom message |
| 1252 | with self.assertRaisesRegex(self.failureException, 'foobar'): |
| 1253 | with self.assertRaises(ExceptionMock, msg='foobar'): |
| 1254 | pass |
| 1255 | # Invalid keyword argument |
Serhiy Storchaka | 77d5781 | 2018-08-19 10:00:11 +0300 | [diff] [blame^] | 1256 | with self.assertRaisesRegex(TypeError, 'foobar'): |
Serhiy Storchaka | df573d6 | 2015-05-16 16:29:50 +0300 | [diff] [blame] | 1257 | with self.assertRaises(ExceptionMock, foobar=42): |
| 1258 | pass |
Serhiy Storchaka | e130503 | 2015-05-06 19:13:11 +0300 | [diff] [blame] | 1259 | # Failure when another exception is raised |
| 1260 | with self.assertRaises(ExceptionMock): |
| 1261 | self.assertRaises(ValueError, Stub) |
| 1262 | |
Serhiy Storchaka | 041dd8e | 2015-05-21 20:15:40 +0300 | [diff] [blame] | 1263 | def testAssertRaisesNoExceptionType(self): |
| 1264 | with self.assertRaises(TypeError): |
| 1265 | self.assertRaises() |
| 1266 | with self.assertRaises(TypeError): |
| 1267 | self.assertRaises(1) |
| 1268 | with self.assertRaises(TypeError): |
| 1269 | self.assertRaises(object) |
| 1270 | with self.assertRaises(TypeError): |
| 1271 | self.assertRaises((ValueError, 1)) |
| 1272 | with self.assertRaises(TypeError): |
| 1273 | self.assertRaises((ValueError, object)) |
| 1274 | |
Victor Stinner | bbd3cf8 | 2017-03-28 00:56:28 +0200 | [diff] [blame] | 1275 | def testAssertRaisesRefcount(self): |
| 1276 | # bpo-23890: assertRaises() must not keep objects alive longer |
| 1277 | # than expected |
| 1278 | def func() : |
| 1279 | try: |
| 1280 | raise ValueError |
| 1281 | except ValueError: |
| 1282 | raise ValueError |
| 1283 | |
| 1284 | refcount = sys.getrefcount(func) |
| 1285 | self.assertRaises(ValueError, func) |
| 1286 | self.assertEqual(refcount, sys.getrefcount(func)) |
| 1287 | |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1288 | def testAssertRaisesRegex(self): |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1289 | class ExceptionMock(Exception): |
| 1290 | pass |
| 1291 | |
| 1292 | def Stub(): |
| 1293 | raise ExceptionMock('We expect') |
| 1294 | |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1295 | self.assertRaisesRegex(ExceptionMock, re.compile('expect$'), Stub) |
| 1296 | self.assertRaisesRegex(ExceptionMock, 'expect$', Stub) |
Serhiy Storchaka | 77d5781 | 2018-08-19 10:00:11 +0300 | [diff] [blame^] | 1297 | with self.assertRaises(TypeError): |
Serhiy Storchaka | e130503 | 2015-05-06 19:13:11 +0300 | [diff] [blame] | 1298 | self.assertRaisesRegex(ExceptionMock, 'expect$', None) |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1299 | |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1300 | def testAssertNotRaisesRegex(self): |
| 1301 | self.assertRaisesRegex( |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1302 | self.failureException, '^Exception not raised by <lambda>$', |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1303 | self.assertRaisesRegex, Exception, re.compile('x'), |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1304 | lambda: None) |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1305 | self.assertRaisesRegex( |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1306 | self.failureException, '^Exception not raised by <lambda>$', |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1307 | self.assertRaisesRegex, Exception, 'x', |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1308 | lambda: None) |
Serhiy Storchaka | df573d6 | 2015-05-16 16:29:50 +0300 | [diff] [blame] | 1309 | # Custom message |
| 1310 | with self.assertRaisesRegex(self.failureException, 'foobar'): |
| 1311 | with self.assertRaisesRegex(Exception, 'expect', msg='foobar'): |
| 1312 | pass |
| 1313 | # Invalid keyword argument |
Serhiy Storchaka | 77d5781 | 2018-08-19 10:00:11 +0300 | [diff] [blame^] | 1314 | with self.assertRaisesRegex(TypeError, 'foobar'): |
Serhiy Storchaka | df573d6 | 2015-05-16 16:29:50 +0300 | [diff] [blame] | 1315 | with self.assertRaisesRegex(Exception, 'expect', foobar=42): |
| 1316 | pass |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1317 | |
R David Murray | e1b6f97 | 2014-03-23 15:08:43 -0400 | [diff] [blame] | 1318 | def testAssertRaisesRegexInvalidRegex(self): |
| 1319 | # Issue 20145. |
| 1320 | class MyExc(Exception): |
| 1321 | pass |
| 1322 | self.assertRaises(TypeError, self.assertRaisesRegex, MyExc, lambda: True) |
| 1323 | |
| 1324 | def testAssertWarnsRegexInvalidRegex(self): |
| 1325 | # Issue 20145. |
| 1326 | class MyWarn(Warning): |
| 1327 | pass |
| 1328 | self.assertRaises(TypeError, self.assertWarnsRegex, MyWarn, lambda: True) |
| 1329 | |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1330 | def testAssertRaisesRegexMismatch(self): |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1331 | def Stub(): |
| 1332 | raise Exception('Unexpected') |
| 1333 | |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1334 | self.assertRaisesRegex( |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1335 | self.failureException, |
| 1336 | r'"\^Expected\$" does not match "Unexpected"', |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1337 | self.assertRaisesRegex, Exception, '^Expected$', |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1338 | Stub) |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1339 | self.assertRaisesRegex( |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1340 | self.failureException, |
| 1341 | r'"\^Expected\$" does not match "Unexpected"', |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1342 | self.assertRaisesRegex, Exception, |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1343 | re.compile('^Expected$'), Stub) |
| 1344 | |
| 1345 | def testAssertRaisesExcValue(self): |
| 1346 | class ExceptionMock(Exception): |
| 1347 | pass |
| 1348 | |
| 1349 | def Stub(foo): |
| 1350 | raise ExceptionMock(foo) |
| 1351 | v = "particular value" |
| 1352 | |
| 1353 | ctx = self.assertRaises(ExceptionMock) |
| 1354 | with ctx: |
| 1355 | Stub(v) |
| 1356 | e = ctx.exception |
| 1357 | self.assertIsInstance(e, ExceptionMock) |
| 1358 | self.assertEqual(e.args[0], v) |
| 1359 | |
Serhiy Storchaka | 041dd8e | 2015-05-21 20:15:40 +0300 | [diff] [blame] | 1360 | def testAssertRaisesRegexNoExceptionType(self): |
| 1361 | with self.assertRaises(TypeError): |
| 1362 | self.assertRaisesRegex() |
| 1363 | with self.assertRaises(TypeError): |
| 1364 | self.assertRaisesRegex(ValueError) |
| 1365 | with self.assertRaises(TypeError): |
| 1366 | self.assertRaisesRegex(1, 'expect') |
| 1367 | with self.assertRaises(TypeError): |
| 1368 | self.assertRaisesRegex(object, 'expect') |
| 1369 | with self.assertRaises(TypeError): |
| 1370 | self.assertRaisesRegex((ValueError, 1), 'expect') |
| 1371 | with self.assertRaises(TypeError): |
| 1372 | self.assertRaisesRegex((ValueError, object), 'expect') |
| 1373 | |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1374 | def testAssertWarnsCallable(self): |
| 1375 | def _runtime_warn(): |
| 1376 | warnings.warn("foo", RuntimeWarning) |
| 1377 | # Success when the right warning is triggered, even several times |
| 1378 | self.assertWarns(RuntimeWarning, _runtime_warn) |
| 1379 | self.assertWarns(RuntimeWarning, _runtime_warn) |
| 1380 | # A tuple of warning classes is accepted |
| 1381 | self.assertWarns((DeprecationWarning, RuntimeWarning), _runtime_warn) |
| 1382 | # *args and **kwargs also work |
| 1383 | self.assertWarns(RuntimeWarning, |
| 1384 | warnings.warn, "foo", category=RuntimeWarning) |
| 1385 | # Failure when no warning is triggered |
| 1386 | with self.assertRaises(self.failureException): |
| 1387 | self.assertWarns(RuntimeWarning, lambda: 0) |
Serhiy Storchaka | e130503 | 2015-05-06 19:13:11 +0300 | [diff] [blame] | 1388 | # Failure when the function is None |
Serhiy Storchaka | 77d5781 | 2018-08-19 10:00:11 +0300 | [diff] [blame^] | 1389 | with self.assertRaises(TypeError): |
Serhiy Storchaka | e130503 | 2015-05-06 19:13:11 +0300 | [diff] [blame] | 1390 | self.assertWarns(RuntimeWarning, None) |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1391 | # Failure when another warning is triggered |
| 1392 | with warnings.catch_warnings(): |
| 1393 | # Force default filter (in case tests are run with -We) |
| 1394 | warnings.simplefilter("default", RuntimeWarning) |
| 1395 | with self.assertRaises(self.failureException): |
| 1396 | self.assertWarns(DeprecationWarning, _runtime_warn) |
| 1397 | # Filters for other warnings are not modified |
| 1398 | with warnings.catch_warnings(): |
| 1399 | warnings.simplefilter("error", RuntimeWarning) |
| 1400 | with self.assertRaises(RuntimeWarning): |
| 1401 | self.assertWarns(DeprecationWarning, _runtime_warn) |
| 1402 | |
| 1403 | def testAssertWarnsContext(self): |
Ezio Melotti | b5bc353 | 2013-08-17 16:11:40 +0300 | [diff] [blame] | 1404 | # Believe it or not, it is preferable to duplicate all tests above, |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1405 | # to make sure the __warningregistry__ $@ is circumvented correctly. |
| 1406 | def _runtime_warn(): |
| 1407 | warnings.warn("foo", RuntimeWarning) |
| 1408 | _runtime_warn_lineno = inspect.getsourcelines(_runtime_warn)[1] |
| 1409 | with self.assertWarns(RuntimeWarning) as cm: |
| 1410 | _runtime_warn() |
| 1411 | # A tuple of warning classes is accepted |
| 1412 | with self.assertWarns((DeprecationWarning, RuntimeWarning)) as cm: |
| 1413 | _runtime_warn() |
| 1414 | # The context manager exposes various useful attributes |
| 1415 | self.assertIsInstance(cm.warning, RuntimeWarning) |
| 1416 | self.assertEqual(cm.warning.args[0], "foo") |
| 1417 | self.assertIn("test_case.py", cm.filename) |
| 1418 | self.assertEqual(cm.lineno, _runtime_warn_lineno + 1) |
| 1419 | # Same with several warnings |
| 1420 | with self.assertWarns(RuntimeWarning): |
| 1421 | _runtime_warn() |
| 1422 | _runtime_warn() |
| 1423 | with self.assertWarns(RuntimeWarning): |
| 1424 | warnings.warn("foo", category=RuntimeWarning) |
| 1425 | # Failure when no warning is triggered |
| 1426 | with self.assertRaises(self.failureException): |
| 1427 | with self.assertWarns(RuntimeWarning): |
| 1428 | pass |
Serhiy Storchaka | df573d6 | 2015-05-16 16:29:50 +0300 | [diff] [blame] | 1429 | # Custom message |
| 1430 | with self.assertRaisesRegex(self.failureException, 'foobar'): |
| 1431 | with self.assertWarns(RuntimeWarning, msg='foobar'): |
| 1432 | pass |
| 1433 | # Invalid keyword argument |
Serhiy Storchaka | 77d5781 | 2018-08-19 10:00:11 +0300 | [diff] [blame^] | 1434 | with self.assertRaisesRegex(TypeError, 'foobar'): |
Serhiy Storchaka | df573d6 | 2015-05-16 16:29:50 +0300 | [diff] [blame] | 1435 | with self.assertWarns(RuntimeWarning, foobar=42): |
| 1436 | pass |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1437 | # Failure when another warning is triggered |
| 1438 | with warnings.catch_warnings(): |
| 1439 | # Force default filter (in case tests are run with -We) |
| 1440 | warnings.simplefilter("default", RuntimeWarning) |
| 1441 | with self.assertRaises(self.failureException): |
| 1442 | with self.assertWarns(DeprecationWarning): |
| 1443 | _runtime_warn() |
| 1444 | # Filters for other warnings are not modified |
| 1445 | with warnings.catch_warnings(): |
| 1446 | warnings.simplefilter("error", RuntimeWarning) |
| 1447 | with self.assertRaises(RuntimeWarning): |
| 1448 | with self.assertWarns(DeprecationWarning): |
| 1449 | _runtime_warn() |
| 1450 | |
Serhiy Storchaka | 041dd8e | 2015-05-21 20:15:40 +0300 | [diff] [blame] | 1451 | def testAssertWarnsNoExceptionType(self): |
| 1452 | with self.assertRaises(TypeError): |
| 1453 | self.assertWarns() |
| 1454 | with self.assertRaises(TypeError): |
| 1455 | self.assertWarns(1) |
| 1456 | with self.assertRaises(TypeError): |
| 1457 | self.assertWarns(object) |
| 1458 | with self.assertRaises(TypeError): |
| 1459 | self.assertWarns((UserWarning, 1)) |
| 1460 | with self.assertRaises(TypeError): |
| 1461 | self.assertWarns((UserWarning, object)) |
| 1462 | with self.assertRaises(TypeError): |
| 1463 | self.assertWarns((UserWarning, Exception)) |
| 1464 | |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1465 | def testAssertWarnsRegexCallable(self): |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1466 | def _runtime_warn(msg): |
| 1467 | warnings.warn(msg, RuntimeWarning) |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1468 | self.assertWarnsRegex(RuntimeWarning, "o+", |
| 1469 | _runtime_warn, "foox") |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1470 | # Failure when no warning is triggered |
| 1471 | with self.assertRaises(self.failureException): |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1472 | self.assertWarnsRegex(RuntimeWarning, "o+", |
| 1473 | lambda: 0) |
Serhiy Storchaka | e130503 | 2015-05-06 19:13:11 +0300 | [diff] [blame] | 1474 | # Failure when the function is None |
Serhiy Storchaka | 77d5781 | 2018-08-19 10:00:11 +0300 | [diff] [blame^] | 1475 | with self.assertRaises(TypeError): |
Serhiy Storchaka | e130503 | 2015-05-06 19:13:11 +0300 | [diff] [blame] | 1476 | self.assertWarnsRegex(RuntimeWarning, "o+", None) |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1477 | # Failure when another warning is triggered |
| 1478 | with warnings.catch_warnings(): |
| 1479 | # Force default filter (in case tests are run with -We) |
| 1480 | warnings.simplefilter("default", RuntimeWarning) |
| 1481 | with self.assertRaises(self.failureException): |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1482 | self.assertWarnsRegex(DeprecationWarning, "o+", |
| 1483 | _runtime_warn, "foox") |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1484 | # Failure when message doesn't match |
| 1485 | with self.assertRaises(self.failureException): |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1486 | self.assertWarnsRegex(RuntimeWarning, "o+", |
| 1487 | _runtime_warn, "barz") |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1488 | # A little trickier: we ask RuntimeWarnings to be raised, and then |
| 1489 | # check for some of them. It is implementation-defined whether |
| 1490 | # non-matching RuntimeWarnings are simply re-raised, or produce a |
| 1491 | # failureException. |
| 1492 | with warnings.catch_warnings(): |
| 1493 | warnings.simplefilter("error", RuntimeWarning) |
| 1494 | with self.assertRaises((RuntimeWarning, self.failureException)): |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1495 | self.assertWarnsRegex(RuntimeWarning, "o+", |
| 1496 | _runtime_warn, "barz") |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1497 | |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1498 | def testAssertWarnsRegexContext(self): |
| 1499 | # Same as above, but with assertWarnsRegex as a context manager |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1500 | def _runtime_warn(msg): |
| 1501 | warnings.warn(msg, RuntimeWarning) |
| 1502 | _runtime_warn_lineno = inspect.getsourcelines(_runtime_warn)[1] |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1503 | with self.assertWarnsRegex(RuntimeWarning, "o+") as cm: |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1504 | _runtime_warn("foox") |
| 1505 | self.assertIsInstance(cm.warning, RuntimeWarning) |
| 1506 | self.assertEqual(cm.warning.args[0], "foox") |
| 1507 | self.assertIn("test_case.py", cm.filename) |
| 1508 | self.assertEqual(cm.lineno, _runtime_warn_lineno + 1) |
| 1509 | # Failure when no warning is triggered |
| 1510 | with self.assertRaises(self.failureException): |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1511 | with self.assertWarnsRegex(RuntimeWarning, "o+"): |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1512 | pass |
Serhiy Storchaka | df573d6 | 2015-05-16 16:29:50 +0300 | [diff] [blame] | 1513 | # Custom message |
| 1514 | with self.assertRaisesRegex(self.failureException, 'foobar'): |
| 1515 | with self.assertWarnsRegex(RuntimeWarning, 'o+', msg='foobar'): |
| 1516 | pass |
| 1517 | # Invalid keyword argument |
Serhiy Storchaka | 77d5781 | 2018-08-19 10:00:11 +0300 | [diff] [blame^] | 1518 | with self.assertRaisesRegex(TypeError, 'foobar'): |
Serhiy Storchaka | df573d6 | 2015-05-16 16:29:50 +0300 | [diff] [blame] | 1519 | with self.assertWarnsRegex(RuntimeWarning, 'o+', foobar=42): |
| 1520 | pass |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1521 | # Failure when another warning is triggered |
| 1522 | with warnings.catch_warnings(): |
| 1523 | # Force default filter (in case tests are run with -We) |
| 1524 | warnings.simplefilter("default", RuntimeWarning) |
| 1525 | with self.assertRaises(self.failureException): |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1526 | with self.assertWarnsRegex(DeprecationWarning, "o+"): |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1527 | _runtime_warn("foox") |
| 1528 | # Failure when message doesn't match |
| 1529 | with self.assertRaises(self.failureException): |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1530 | with self.assertWarnsRegex(RuntimeWarning, "o+"): |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1531 | _runtime_warn("barz") |
| 1532 | # A little trickier: we ask RuntimeWarnings to be raised, and then |
| 1533 | # check for some of them. It is implementation-defined whether |
| 1534 | # non-matching RuntimeWarnings are simply re-raised, or produce a |
| 1535 | # failureException. |
| 1536 | with warnings.catch_warnings(): |
| 1537 | warnings.simplefilter("error", RuntimeWarning) |
| 1538 | with self.assertRaises((RuntimeWarning, self.failureException)): |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1539 | with self.assertWarnsRegex(RuntimeWarning, "o+"): |
Antoine Pitrou | 4bc12ef | 2010-09-06 19:25:46 +0000 | [diff] [blame] | 1540 | _runtime_warn("barz") |
| 1541 | |
Serhiy Storchaka | 041dd8e | 2015-05-21 20:15:40 +0300 | [diff] [blame] | 1542 | def testAssertWarnsRegexNoExceptionType(self): |
| 1543 | with self.assertRaises(TypeError): |
| 1544 | self.assertWarnsRegex() |
| 1545 | with self.assertRaises(TypeError): |
| 1546 | self.assertWarnsRegex(UserWarning) |
| 1547 | with self.assertRaises(TypeError): |
| 1548 | self.assertWarnsRegex(1, 'expect') |
| 1549 | with self.assertRaises(TypeError): |
| 1550 | self.assertWarnsRegex(object, 'expect') |
| 1551 | with self.assertRaises(TypeError): |
| 1552 | self.assertWarnsRegex((UserWarning, 1), 'expect') |
| 1553 | with self.assertRaises(TypeError): |
| 1554 | self.assertWarnsRegex((UserWarning, object), 'expect') |
| 1555 | with self.assertRaises(TypeError): |
| 1556 | self.assertWarnsRegex((UserWarning, Exception), 'expect') |
| 1557 | |
Antoine Pitrou | 0715b9f | 2013-09-14 19:45:47 +0200 | [diff] [blame] | 1558 | @contextlib.contextmanager |
| 1559 | def assertNoStderr(self): |
| 1560 | with captured_stderr() as buf: |
| 1561 | yield |
| 1562 | self.assertEqual(buf.getvalue(), "") |
| 1563 | |
| 1564 | def assertLogRecords(self, records, matches): |
| 1565 | self.assertEqual(len(records), len(matches)) |
| 1566 | for rec, match in zip(records, matches): |
| 1567 | self.assertIsInstance(rec, logging.LogRecord) |
| 1568 | for k, v in match.items(): |
| 1569 | self.assertEqual(getattr(rec, k), v) |
| 1570 | |
| 1571 | def testAssertLogsDefaults(self): |
| 1572 | # defaults: root logger, level INFO |
| 1573 | with self.assertNoStderr(): |
| 1574 | with self.assertLogs() as cm: |
| 1575 | log_foo.info("1") |
| 1576 | log_foobar.debug("2") |
| 1577 | self.assertEqual(cm.output, ["INFO:foo:1"]) |
| 1578 | self.assertLogRecords(cm.records, [{'name': 'foo'}]) |
| 1579 | |
| 1580 | def testAssertLogsTwoMatchingMessages(self): |
| 1581 | # Same, but with two matching log messages |
| 1582 | with self.assertNoStderr(): |
| 1583 | with self.assertLogs() as cm: |
| 1584 | log_foo.info("1") |
| 1585 | log_foobar.debug("2") |
| 1586 | log_quux.warning("3") |
| 1587 | self.assertEqual(cm.output, ["INFO:foo:1", "WARNING:quux:3"]) |
| 1588 | self.assertLogRecords(cm.records, |
| 1589 | [{'name': 'foo'}, {'name': 'quux'}]) |
| 1590 | |
| 1591 | def checkAssertLogsPerLevel(self, level): |
| 1592 | # Check level filtering |
| 1593 | with self.assertNoStderr(): |
| 1594 | with self.assertLogs(level=level) as cm: |
| 1595 | log_foo.warning("1") |
| 1596 | log_foobar.error("2") |
| 1597 | log_quux.critical("3") |
| 1598 | self.assertEqual(cm.output, ["ERROR:foo.bar:2", "CRITICAL:quux:3"]) |
| 1599 | self.assertLogRecords(cm.records, |
| 1600 | [{'name': 'foo.bar'}, {'name': 'quux'}]) |
| 1601 | |
| 1602 | def testAssertLogsPerLevel(self): |
| 1603 | self.checkAssertLogsPerLevel(logging.ERROR) |
| 1604 | self.checkAssertLogsPerLevel('ERROR') |
| 1605 | |
| 1606 | def checkAssertLogsPerLogger(self, logger): |
Berker Peksag | f23530f | 2014-10-19 18:04:38 +0300 | [diff] [blame] | 1607 | # Check per-logger filtering |
Antoine Pitrou | 0715b9f | 2013-09-14 19:45:47 +0200 | [diff] [blame] | 1608 | with self.assertNoStderr(): |
| 1609 | with self.assertLogs(level='DEBUG') as outer_cm: |
| 1610 | with self.assertLogs(logger, level='DEBUG') as cm: |
| 1611 | log_foo.info("1") |
| 1612 | log_foobar.debug("2") |
| 1613 | log_quux.warning("3") |
| 1614 | self.assertEqual(cm.output, ["INFO:foo:1", "DEBUG:foo.bar:2"]) |
| 1615 | self.assertLogRecords(cm.records, |
| 1616 | [{'name': 'foo'}, {'name': 'foo.bar'}]) |
| 1617 | # The outer catchall caught the quux log |
| 1618 | self.assertEqual(outer_cm.output, ["WARNING:quux:3"]) |
| 1619 | |
| 1620 | def testAssertLogsPerLogger(self): |
| 1621 | self.checkAssertLogsPerLogger(logging.getLogger('foo')) |
| 1622 | self.checkAssertLogsPerLogger('foo') |
| 1623 | |
| 1624 | def testAssertLogsFailureNoLogs(self): |
| 1625 | # Failure due to no logs |
| 1626 | with self.assertNoStderr(): |
| 1627 | with self.assertRaises(self.failureException): |
| 1628 | with self.assertLogs(): |
| 1629 | pass |
| 1630 | |
| 1631 | def testAssertLogsFailureLevelTooHigh(self): |
| 1632 | # Failure due to level too high |
| 1633 | with self.assertNoStderr(): |
| 1634 | with self.assertRaises(self.failureException): |
| 1635 | with self.assertLogs(level='WARNING'): |
| 1636 | log_foo.info("1") |
| 1637 | |
| 1638 | def testAssertLogsFailureMismatchingLogger(self): |
| 1639 | # Failure due to mismatching logger (and the logged message is |
| 1640 | # passed through) |
| 1641 | with self.assertLogs('quux', level='ERROR'): |
| 1642 | with self.assertRaises(self.failureException): |
| 1643 | with self.assertLogs('foo'): |
| 1644 | log_quux.error("1") |
| 1645 | |
Ezio Melotti | 2baf1a6 | 2010-11-22 12:56:58 +0000 | [diff] [blame] | 1646 | def testDeprecatedMethodNames(self): |
Ezio Melotti | 361467e | 2011-04-03 17:37:58 +0300 | [diff] [blame] | 1647 | """ |
| 1648 | Test that the deprecated methods raise a DeprecationWarning. See #9424. |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1649 | """ |
| 1650 | old = ( |
Ezio Melotti | 0f53501 | 2011-04-03 18:02:13 +0300 | [diff] [blame] | 1651 | (self.failIfEqual, (3, 5)), |
Ezio Melotti | 2baf1a6 | 2010-11-22 12:56:58 +0000 | [diff] [blame] | 1652 | (self.assertNotEquals, (3, 5)), |
Ezio Melotti | 0f53501 | 2011-04-03 18:02:13 +0300 | [diff] [blame] | 1653 | (self.failUnlessEqual, (3, 3)), |
Ezio Melotti | 2baf1a6 | 2010-11-22 12:56:58 +0000 | [diff] [blame] | 1654 | (self.assertEquals, (3, 3)), |
Ezio Melotti | 0f53501 | 2011-04-03 18:02:13 +0300 | [diff] [blame] | 1655 | (self.failUnlessAlmostEqual, (2.0, 2.0)), |
Ezio Melotti | 2baf1a6 | 2010-11-22 12:56:58 +0000 | [diff] [blame] | 1656 | (self.assertAlmostEquals, (2.0, 2.0)), |
Ezio Melotti | 0f53501 | 2011-04-03 18:02:13 +0300 | [diff] [blame] | 1657 | (self.failIfAlmostEqual, (3.0, 5.0)), |
Ezio Melotti | 2baf1a6 | 2010-11-22 12:56:58 +0000 | [diff] [blame] | 1658 | (self.assertNotAlmostEquals, (3.0, 5.0)), |
Ezio Melotti | 0f53501 | 2011-04-03 18:02:13 +0300 | [diff] [blame] | 1659 | (self.failUnless, (True,)), |
Ezio Melotti | 2baf1a6 | 2010-11-22 12:56:58 +0000 | [diff] [blame] | 1660 | (self.assert_, (True,)), |
Ezio Melotti | 0f53501 | 2011-04-03 18:02:13 +0300 | [diff] [blame] | 1661 | (self.failUnlessRaises, (TypeError, lambda _: 3.14 + 'spam')), |
| 1662 | (self.failIf, (False,)), |
| 1663 | (self.assertDictContainsSubset, (dict(a=1, b=2), dict(a=1, b=2, c=3))), |
Ezio Melotti | ed3a7d2 | 2010-12-01 02:32:32 +0000 | [diff] [blame] | 1664 | (self.assertRaisesRegexp, (KeyError, 'foo', lambda: {}['foo'])), |
| 1665 | (self.assertRegexpMatches, ('bar', 'bar')), |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1666 | ) |
| 1667 | for meth, args in old: |
Ezio Melotti | 2baf1a6 | 2010-11-22 12:56:58 +0000 | [diff] [blame] | 1668 | with self.assertWarns(DeprecationWarning): |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1669 | meth(*args) |
Ezio Melotti | 2baf1a6 | 2010-11-22 12:56:58 +0000 | [diff] [blame] | 1670 | |
Ezio Melotti | 0f53501 | 2011-04-03 18:02:13 +0300 | [diff] [blame] | 1671 | # disable this test for now. When the version where the fail* methods will |
| 1672 | # be removed is decided, re-enable it and update the version |
| 1673 | def _testDeprecatedFailMethods(self): |
| 1674 | """Test that the deprecated fail* methods get removed in 3.x""" |
| 1675 | if sys.version_info[:2] < (3, 3): |
| 1676 | return |
| 1677 | deprecated_names = [ |
| 1678 | 'failIfEqual', 'failUnlessEqual', 'failUnlessAlmostEqual', |
| 1679 | 'failIfAlmostEqual', 'failUnless', 'failUnlessRaises', 'failIf', |
| 1680 | 'assertDictContainsSubset', |
| 1681 | ] |
| 1682 | for deprecated_name in deprecated_names: |
| 1683 | with self.assertRaises(AttributeError): |
| 1684 | getattr(self, deprecated_name) # remove these in 3.x |
| 1685 | |
Michael Foord | 2560e5c | 2010-03-27 12:34:21 +0000 | [diff] [blame] | 1686 | def testDeepcopy(self): |
| 1687 | # Issue: 5660 |
| 1688 | class TestableTest(unittest.TestCase): |
| 1689 | def testNothing(self): |
| 1690 | pass |
| 1691 | |
| 1692 | test = TestableTest('testNothing') |
| 1693 | |
| 1694 | # This shouldn't blow up |
| 1695 | deepcopy(test) |
Michael Foord | 8ca6d98 | 2010-11-20 15:34:26 +0000 | [diff] [blame] | 1696 | |
| 1697 | def testPickle(self): |
| 1698 | # Issue 10326 |
| 1699 | |
| 1700 | # Can't use TestCase classes defined in Test class as |
| 1701 | # pickle does not work with inner classes |
| 1702 | test = unittest.TestCase('run') |
| 1703 | for protocol in range(pickle.HIGHEST_PROTOCOL + 1): |
| 1704 | |
| 1705 | # blew up prior to fix |
| 1706 | pickled_test = pickle.dumps(test, protocol=protocol) |
Michael Foord | 8a00eec | 2010-11-20 15:43:02 +0000 | [diff] [blame] | 1707 | unpickled_test = pickle.loads(pickled_test) |
| 1708 | self.assertEqual(test, unpickled_test) |
Michael Foord | b357fb7 | 2010-11-20 15:47:56 +0000 | [diff] [blame] | 1709 | |
| 1710 | # exercise the TestCase instance in a way that will invoke |
| 1711 | # the type equality lookup mechanism |
| 1712 | unpickled_test.assertEqual(set(), set()) |
Michael Foord | b3468f7 | 2010-12-19 03:19:47 +0000 | [diff] [blame] | 1713 | |
| 1714 | def testKeyboardInterrupt(self): |
| 1715 | def _raise(self=None): |
| 1716 | raise KeyboardInterrupt |
| 1717 | def nothing(self): |
| 1718 | pass |
| 1719 | |
| 1720 | class Test1(unittest.TestCase): |
| 1721 | test_something = _raise |
| 1722 | |
| 1723 | class Test2(unittest.TestCase): |
| 1724 | setUp = _raise |
| 1725 | test_something = nothing |
| 1726 | |
| 1727 | class Test3(unittest.TestCase): |
| 1728 | test_something = nothing |
| 1729 | tearDown = _raise |
| 1730 | |
| 1731 | class Test4(unittest.TestCase): |
| 1732 | def test_something(self): |
| 1733 | self.addCleanup(_raise) |
| 1734 | |
| 1735 | for klass in (Test1, Test2, Test3, Test4): |
| 1736 | with self.assertRaises(KeyboardInterrupt): |
| 1737 | klass('test_something').run() |
| 1738 | |
| 1739 | def testSkippingEverywhere(self): |
| 1740 | def _skip(self=None): |
| 1741 | raise unittest.SkipTest('some reason') |
| 1742 | def nothing(self): |
| 1743 | pass |
| 1744 | |
| 1745 | class Test1(unittest.TestCase): |
| 1746 | test_something = _skip |
| 1747 | |
| 1748 | class Test2(unittest.TestCase): |
| 1749 | setUp = _skip |
| 1750 | test_something = nothing |
| 1751 | |
| 1752 | class Test3(unittest.TestCase): |
| 1753 | test_something = nothing |
| 1754 | tearDown = _skip |
| 1755 | |
| 1756 | class Test4(unittest.TestCase): |
| 1757 | def test_something(self): |
| 1758 | self.addCleanup(_skip) |
| 1759 | |
| 1760 | for klass in (Test1, Test2, Test3, Test4): |
| 1761 | result = unittest.TestResult() |
| 1762 | klass('test_something').run(result) |
| 1763 | self.assertEqual(len(result.skipped), 1) |
| 1764 | self.assertEqual(result.testsRun, 1) |
| 1765 | |
| 1766 | def testSystemExit(self): |
| 1767 | def _raise(self=None): |
| 1768 | raise SystemExit |
| 1769 | def nothing(self): |
| 1770 | pass |
| 1771 | |
| 1772 | class Test1(unittest.TestCase): |
| 1773 | test_something = _raise |
| 1774 | |
| 1775 | class Test2(unittest.TestCase): |
| 1776 | setUp = _raise |
| 1777 | test_something = nothing |
| 1778 | |
| 1779 | class Test3(unittest.TestCase): |
| 1780 | test_something = nothing |
| 1781 | tearDown = _raise |
| 1782 | |
| 1783 | class Test4(unittest.TestCase): |
| 1784 | def test_something(self): |
| 1785 | self.addCleanup(_raise) |
| 1786 | |
| 1787 | for klass in (Test1, Test2, Test3, Test4): |
| 1788 | result = unittest.TestResult() |
| 1789 | klass('test_something').run(result) |
| 1790 | self.assertEqual(len(result.errors), 1) |
| 1791 | self.assertEqual(result.testsRun, 1) |
Benjamin Peterson | b6ffa79 | 2011-07-14 12:48:25 -0500 | [diff] [blame] | 1792 | |
| 1793 | @support.cpython_only |
| 1794 | def testNoCycles(self): |
| 1795 | case = unittest.TestCase() |
| 1796 | wr = weakref.ref(case) |
| 1797 | with support.disable_gc(): |
| 1798 | del case |
| 1799 | self.assertFalse(wr()) |
Antoine Pitrou | 1d7c8c9 | 2013-09-13 23:52:46 +0200 | [diff] [blame] | 1800 | |
Victor Stinner | 031bd53 | 2013-12-09 01:52:50 +0100 | [diff] [blame] | 1801 | def test_no_exception_leak(self): |
| 1802 | # Issue #19880: TestCase.run() should not keep a reference |
| 1803 | # to the exception |
| 1804 | class MyException(Exception): |
| 1805 | ninstance = 0 |
| 1806 | |
| 1807 | def __init__(self): |
| 1808 | MyException.ninstance += 1 |
| 1809 | Exception.__init__(self) |
| 1810 | |
| 1811 | def __del__(self): |
| 1812 | MyException.ninstance -= 1 |
| 1813 | |
| 1814 | class TestCase(unittest.TestCase): |
| 1815 | def test1(self): |
| 1816 | raise MyException() |
| 1817 | |
| 1818 | @unittest.expectedFailure |
| 1819 | def test2(self): |
| 1820 | raise MyException() |
| 1821 | |
| 1822 | for method_name in ('test1', 'test2'): |
| 1823 | testcase = TestCase(method_name) |
| 1824 | testcase.run() |
| 1825 | self.assertEqual(MyException.ninstance, 0) |
| 1826 | |
Antoine Pitrou | 1d7c8c9 | 2013-09-13 23:52:46 +0200 | [diff] [blame] | 1827 | |
| 1828 | if __name__ == "__main__": |
| 1829 | unittest.main() |