import io
import os
import sys
import pickle
import subprocess
import unittest
from unittest.case import _Outcome
from unittest.test.support import (LoggingResult,
ResultWithNoStartTestRunStopTestRun)
class TestCleanUp(unittest.TestCase):
def testCleanUp(self):
class TestableTest(unittest.TestCase):
def testNothing(self):
pass
test = TestableTest('testNothing')
self.assertEqual(test._cleanups, [])
cleanups = []
def cleanup1(*args, **kwargs):
cleanups.append((1, args, kwargs))
def cleanup2(*args, **kwargs):
cleanups.append((2, args, kwargs))
test.addCleanup(cleanup1, 1, 2, 3, four='hello', five='goodbye')
test.addCleanup(cleanup2)
self.assertEqual(test._cleanups,
[(cleanup1, (1, 2, 3), dict(four='hello', five='goodbye')),
(cleanup2, (), {})])
self.assertTrue(test.doCleanups())
self.assertEqual(cleanups, [(2, (), {}), (1, (1, 2, 3), dict(four='hello', five='goodbye'))])
def testCleanUpWithErrors(self):
class TestableTest(unittest.TestCase):
def testNothing(self):
pass
test = TestableTest('testNothing')
outcome = test._outcome = _Outcome()
exc1 = Exception('foo')
exc2 = Exception('bar')
def cleanup1():
raise exc1
def cleanup2():
raise exc2
test.addCleanup(cleanup1)
test.addCleanup(cleanup2)
self.assertFalse(test.doCleanups())
self.assertFalse(outcome.success)
((_, (Type1, instance1, _)),
(_, (Type2, instance2, _))) = reversed(outcome.errors)
self.assertEqual((Type1, instance1), (Exception, exc1))
self.assertEqual((Type2, instance2), (Exception, exc2))
def testCleanupInRun(self):
blowUp = False
ordering = []
class TestableTest(unittest.TestCase):
def setUp(self):
ordering.append('setUp')
if blowUp:
raise Exception('foo')
def testNothing(self):
ordering.append('test')
def tearDown(self):
ordering.append('tearDown')
test = TestableTest('testNothing')
def cleanup1():
ordering.append('cleanup1')
def cleanup2():
ordering.append('cleanup2')
test.addCleanup(cleanup1)
test.addCleanup(cleanup2)
def success(some_test):
self.assertEqual(some_test, test)
ordering.append('success')
result = unittest.TestResult()
result.addSuccess = success
test.run(result)
self.assertEqual(ordering, ['setUp', 'test', 'tearDown',
'cleanup2', 'cleanup1', 'success'])
blowUp = True
ordering = []
test = TestableTest('testNothing')
test.addCleanup(cleanup1)
test.run(result)
self.assertEqual(ordering, ['setUp', 'cleanup1'])
def testTestCaseDebugExecutesCleanups(self):
ordering = []
class TestableTest(unittest.TestCase):
def setUp(self):
ordering.append('setUp')
self.addCleanup(cleanup1)
def testNothing(self):
ordering.append('test')
def tearDown(self):
ordering.append('tearDown')
test = TestableTest('testNothing')
def cleanup1():
ordering.append('cleanup1')
test.addCleanup(cleanup2)
def cleanup2():
ordering.append('cleanup2')
test.debug()
self.assertEqual(ordering, ['setUp', 'test', 'tearDown', 'cleanup1', 'cleanup2'])
class Test_TextTestRunner(unittest.TestCase):
"""Tests for TextTestRunner."""
def setUp(self):
# clean the environment from pre-existing PYTHONWARNINGS to make
# test_warnings results consistent
self.pythonwarnings = os.environ.get('PYTHONWARNINGS')
if self.pythonwarnings:
del os.environ['PYTHONWARNINGS']
def tearDown(self):
# bring back pre-existing PYTHONWARNINGS if present
if self.pythonwarnings:
os.environ['PYTHONWARNINGS'] = self.pythonwarnings
def test_init(self):
runner = unittest.TextTestRunner()
self.assertFalse(runner.failfast)
self.assertFalse(runner.buffer)
self.assertEqual(runner.verbosity, 1)
self.assertEqual(runner.warnings, None)
self.assertTrue(runner.descriptions)
self.assertEqual(runner.resultclass, unittest.TextTestResult)
self.assertFalse(runner.tb_locals)
def test_multiple_inheritance(self):
class AResult(unittest.TestResult):
def __init__(self, stream, descriptions, verbosity):
super(AResult, self).__init__(stream, descriptions, verbosity)
class ATextResult(unittest.TextTestResult, AResult):
pass
# This used to raise an exception due to TextTestResult not passing
# on arguments in its __init__ super call
ATextResult(None, None, 1)
def testBufferAndFailfast(self):
class Test(unittest.TestCase):
def testFoo(self):
pass
result = unittest.TestResult()
runner = unittest.TextTestRunner(stream=io.StringIO(), failfast=True,
buffer=True)
# Use our result object
runner._makeResult = lambda: result
runner.run(Test('testFoo'))
self.assertTrue(result.failfast)
self.assertTrue(result.buffer)
def test_locals(self):
runner = unittest.TextTestRunner(stream=io.StringIO(), tb_locals=True)
result = runner.run(unittest.TestSuite())
self.assertEqual(True, result.tb_locals)
def testRunnerRegistersResult(self):
class Test(unittest.TestCase):
def testFoo(self):
pass
originalRegisterResult = unittest.runner.registerResult
def cleanup():
unittest.runner.registerResult = originalRegisterResult
self.addCleanup(cleanup)
result = unittest.TestResult()
runner = unittest.TextTestRunner(stream=io.StringIO())
# Use our result object
runner._makeResult = lambda: result
self.wasRegistered = 0
def fakeRegisterResult(thisResult):
self.wasRegistered += 1
self.assertEqual(thisResult, result)
unittest.runner.registerResult = fakeRegisterResult
runner.run(unittest.TestSuite())
self.assertEqual(self.wasRegistered, 1)
def test_works_with_result_without_startTestRun_stopTestRun(self):
class OldTextResult(ResultWithNoStartTestRunStopTestRun):
separator2 = ''
def printErrors(self):
pass
class Runner(unittest.TextTestRunner):
def __init__(self):
super(Runner, self).__init__(io.StringIO())
def _makeResult(self):
return OldTextResult()
runner = Runner()
runner.run(unittest.TestSuite())
def test_startTestRun_stopTestRun_called(self):
class LoggingTextResult(LoggingResult):
separator2 = ''
def printErrors(self):
pass
class LoggingRunner(unittest.TextTestRunner):
def __init__(self, events):
super(LoggingRunner, self).__init__(io.StringIO())
self._events = events
def _makeResult(self):
return LoggingTextResult(self._events)
events = []
runner = LoggingRunner(events)
runner.run(unittest.TestSuite())
expected = ['startTestRun', 'stopTestRun']
self.assertEqual(events, expected)
def test_pickle_unpickle(self):
# Issue #7197: a TextTestRunner should be (un)pickleable. This is
# required by test_multiprocessing under Windows (in verbose mode).
stream = io.StringIO("foo")
runner = unittest.TextTestRunner(stream)
for protocol in range(2, pickle.HIGHEST_PROTOCOL + 1):
s = pickle.dumps(runner, protocol)
obj = pickle.loads(s)
# StringIO objects never compare equal, a cheap test instead.
self.assertEqual(obj.stream.getvalue(), stream.getvalue())
def test_resultclass(self):
def MockResultClass(*args):
return args
STREAM = object()
DESCRIPTIONS = object()
VERBOSITY = object()
runner = unittest.TextTestRunner(STREAM, DESCRIPTIONS, VERBOSITY,
resultclass=MockResultClass)
self.assertEqual(runner.resultclass, MockResultClass)
expectedresult = (runner.stream, DESCRIPTIONS, VERBOSITY)
self.assertEqual(runner._makeResult(), expectedresult)
def test_warnings(self):
"""
Check that warnings argument of TextTestRunner correctly affects the
behavior of the warnings.
"""
# see #10535 and the _test_warnings file for more information
def get_parse_out_err(p):
return [b.splitlines() for b in p.communicate()]
opts = dict(stdout=subprocess.PIPE, stderr=subprocess.PIPE,
cwd=os.path.dirname(__file__))
ae_msg = b'Please use assertEqual instead.'
at_msg = b'Please use assertTrue instead.'
# no args -> all the warnings are printed, unittest warnings only once
p = subprocess.Popen([sys.executable, '_test_warnings.py'], **opts)
with p:
out, err = get_parse_out_err(p)
self.assertIn(b'OK', err)
# check that the total number of warnings in the output is correct
self.assertEqual(len(out), 12)
# check that the numbers of the different kind of warnings is correct
for msg in [b'dw', b'iw', b'uw']:
self.assertEqual(out.count(msg), 3)
for msg in [ae_msg, at_msg, b'rw']:
self.assertEqual(out.count(msg), 1)
args_list = (
# passing 'ignore' as warnings arg -> no warnings
[sys.executable, '_test_warnings.py', 'ignore'],
# -W doesn't affect the result if the arg is passed
[sys.executable, '-Wa', '_test_warnings.py', 'ignore'],
# -W affects the result if the arg is not passed
[sys.executable, '-Wi', '_test_warnings.py']
)
# in all these cases no warnings are printed
for args in args_list:
p = subprocess.Popen(args, **opts)
with p:
out, err = get_parse_out_err(p)
self.assertIn(b'OK', err)
self.assertEqual(len(out), 0)
# passing 'always' as warnings arg -> all the warnings printed,
# unittest warnings only once
p = subprocess.Popen([sys.executable, '_test_warnings.py', 'always'],
**opts)
with p:
out, err = get_parse_out_err(p)
self.assertIn(b'OK', err)
self.assertEqual(len(out), 14)
for msg in [b'dw', b'iw', b'uw', b'rw']:
self.assertEqual(out.count(msg), 3)
for msg in [ae_msg, at_msg]:
self.assertEqual(out.count(msg), 1)
def testStdErrLookedUpAtInstantiationTime(self):
# see issue 10786
old_stderr = sys.stderr
f = io.StringIO()
sys.stderr = f
try:
runner = unittest.TextTestRunner()
self.assertTrue(runner.stream.stream is f)
finally:
sys.stderr = old_stderr
def testSpecifiedStreamUsed(self):
# see issue 10786
f = io.StringIO()
runner = unittest.TextTestRunner(f)
self.assertTrue(runner.stream.stream is f)
if __name__ == "__main__":
unittest.main()