/usr/lib/python2.7/dist-packages/testtools/tests/test_runtest.py is in python-testtools 2.3.0-3ubuntu2.
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"""Tests for the RunTest single test execution logic."""
from testtools import (
ExtendedToOriginalDecorator,
run_test_with,
RunTest,
TestCase,
TestResult,
)
from testtools.matchers import HasLength, MatchesException, Is, Raises
from testtools.testresult.doubles import ExtendedTestResult
from testtools.tests.helpers import FullStackRunTest
class TestRunTest(TestCase):
run_tests_with = FullStackRunTest
def make_case(self):
class Case(TestCase):
def test(self):
pass
return Case('test')
def test___init___short(self):
run = RunTest("bar")
self.assertEqual("bar", run.case)
self.assertEqual([], run.handlers)
def test__init____handlers(self):
handlers = [("quux", "baz")]
run = RunTest("bar", handlers)
self.assertEqual(handlers, run.handlers)
def test__init____handlers_last_resort(self):
handlers = [("quux", "baz")]
last_resort = "foo"
run = RunTest("bar", handlers, last_resort)
self.assertEqual(last_resort, run.last_resort)
def test_run_with_result(self):
# test.run passes result down to _run_test_method.
log = []
class Case(TestCase):
def _run_test_method(self, result):
log.append(result)
case = Case('_run_test_method')
run = RunTest(case, lambda x: log.append(x))
result = TestResult()
run.run(result)
self.assertEqual(1, len(log))
self.assertEqual(result, log[0].decorated)
def test_run_no_result_manages_new_result(self):
log = []
run = RunTest(self.make_case(), lambda x: log.append(x) or x)
result = run.run()
self.assertIsInstance(result.decorated, TestResult)
def test__run_core_called(self):
case = self.make_case()
log = []
run = RunTest(case, lambda x: x)
run._run_core = lambda: log.append('foo')
run.run()
self.assertEqual(['foo'], log)
def test__run_prepared_result_does_not_mask_keyboard(self):
tearDownRuns = []
class Case(TestCase):
def test(self):
raise KeyboardInterrupt("go")
def _run_teardown(self, result):
tearDownRuns.append(self)
return super(Case, self)._run_teardown(result)
case = Case('test')
run = RunTest(case)
run.result = ExtendedTestResult()
self.assertThat(lambda: run._run_prepared_result(run.result),
Raises(MatchesException(KeyboardInterrupt)))
self.assertEqual(
[('startTest', case), ('stopTest', case)], run.result._events)
# tearDown is still run though!
self.assertThat(tearDownRuns, HasLength(1))
def test__run_user_calls_onException(self):
case = self.make_case()
log = []
def handler(exc_info):
log.append("got it")
self.assertEqual(3, len(exc_info))
self.assertIsInstance(exc_info[1], KeyError)
self.assertIs(KeyError, exc_info[0])
case.addOnException(handler)
e = KeyError('Yo')
def raises():
raise e
run = RunTest(case, [(KeyError, None)])
run.result = ExtendedTestResult()
status = run._run_user(raises)
self.assertEqual(run.exception_caught, status)
self.assertEqual([], run.result._events)
self.assertEqual(["got it"], log)
def test__run_user_can_catch_Exception(self):
case = self.make_case()
e = Exception('Yo')
def raises():
raise e
log = []
run = RunTest(case, [(Exception, None)])
run.result = ExtendedTestResult()
status = run._run_user(raises)
self.assertEqual(run.exception_caught, status)
self.assertEqual([], run.result._events)
self.assertEqual([], log)
def test__run_prepared_result_uncaught_Exception_raised(self):
e = KeyError('Yo')
class Case(TestCase):
def test(self):
raise e
case = Case('test')
log = []
def log_exc(self, result, err):
log.append((result, err))
run = RunTest(case, [(ValueError, log_exc)])
run.result = ExtendedTestResult()
self.assertThat(lambda: run._run_prepared_result(run.result),
Raises(MatchesException(KeyError)))
self.assertEqual(
[('startTest', case), ('stopTest', case)], run.result._events)
self.assertEqual([], log)
def test__run_prepared_result_uncaught_Exception_triggers_error(self):
# https://bugs.launchpad.net/testtools/+bug/1364188
# When something isn't handled, the test that was
# executing has errored, one way or another.
e = SystemExit(0)
class Case(TestCase):
def test(self):
raise e
case = Case('test')
log = []
def log_exc(self, result, err):
log.append((result, err))
run = RunTest(case, [], log_exc)
run.result = ExtendedTestResult()
self.assertThat(lambda: run._run_prepared_result(run.result),
Raises(MatchesException(SystemExit)))
self.assertEqual(
[('startTest', case), ('stopTest', case)], run.result._events)
self.assertEqual([(run.result, e)], log)
def test__run_user_uncaught_Exception_from_exception_handler_raised(self):
case = self.make_case()
def broken_handler(exc_info):
# ValueError because thats what we know how to catch - and must
# not.
raise ValueError('boo')
case.addOnException(broken_handler)
e = KeyError('Yo')
def raises():
raise e
log = []
def log_exc(self, result, err):
log.append((result, err))
run = RunTest(case, [(ValueError, log_exc)])
run.result = ExtendedTestResult()
self.assertThat(lambda: run._run_user(raises),
Raises(MatchesException(ValueError)))
self.assertEqual([], run.result._events)
self.assertEqual([], log)
def test__run_user_returns_result(self):
case = self.make_case()
def returns():
return 1
run = RunTest(case)
run.result = ExtendedTestResult()
self.assertEqual(1, run._run_user(returns))
self.assertEqual([], run.result._events)
def test__run_one_decorates_result(self):
log = []
class Run(RunTest):
def _run_prepared_result(self, result):
log.append(result)
return result
run = Run(self.make_case(), lambda x: x)
result = run._run_one('foo')
self.assertEqual([result], log)
self.assertIsInstance(log[0], ExtendedToOriginalDecorator)
self.assertEqual('foo', result.decorated)
def test__run_prepared_result_calls_start_and_stop_test(self):
result = ExtendedTestResult()
case = self.make_case()
run = RunTest(case, lambda x: x)
run.run(result)
self.assertEqual([
('startTest', case),
('addSuccess', case),
('stopTest', case),
], result._events)
def test__run_prepared_result_calls_stop_test_always(self):
result = ExtendedTestResult()
case = self.make_case()
def inner():
raise Exception("foo")
run = RunTest(case, lambda x: x)
run._run_core = inner
self.assertThat(lambda: run.run(result),
Raises(MatchesException(Exception("foo"))))
self.assertEqual([
('startTest', case),
('stopTest', case),
], result._events)
class CustomRunTest(RunTest):
marker = object()
def run(self, result=None):
return self.marker
class TestTestCaseSupportForRunTest(TestCase):
def test_pass_custom_run_test(self):
class SomeCase(TestCase):
def test_foo(self):
pass
result = TestResult()
case = SomeCase('test_foo', runTest=CustomRunTest)
from_run_test = case.run(result)
self.assertThat(from_run_test, Is(CustomRunTest.marker))
def test_default_is_runTest_class_variable(self):
class SomeCase(TestCase):
run_tests_with = CustomRunTest
def test_foo(self):
pass
result = TestResult()
case = SomeCase('test_foo')
from_run_test = case.run(result)
self.assertThat(from_run_test, Is(CustomRunTest.marker))
def test_constructor_argument_overrides_class_variable(self):
# If a 'runTest' argument is passed to the test's constructor, that
# overrides the class variable.
marker = object()
class DifferentRunTest(RunTest):
def run(self, result=None):
return marker
class SomeCase(TestCase):
run_tests_with = CustomRunTest
def test_foo(self):
pass
result = TestResult()
case = SomeCase('test_foo', runTest=DifferentRunTest)
from_run_test = case.run(result)
self.assertThat(from_run_test, Is(marker))
def test_decorator_for_run_test(self):
# Individual test methods can be marked as needing a special runner.
class SomeCase(TestCase):
@run_test_with(CustomRunTest)
def test_foo(self):
pass
result = TestResult()
case = SomeCase('test_foo')
from_run_test = case.run(result)
self.assertThat(from_run_test, Is(CustomRunTest.marker))
def test_extended_decorator_for_run_test(self):
# Individual test methods can be marked as needing a special runner.
# Extra arguments can be passed to the decorator which will then be
# passed on to the RunTest object.
marker = object()
class FooRunTest(RunTest):
def __init__(self, case, handlers=None, bar=None):
super(FooRunTest, self).__init__(case, handlers)
self.bar = bar
def run(self, result=None):
return self.bar
class SomeCase(TestCase):
@run_test_with(FooRunTest, bar=marker)
def test_foo(self):
pass
result = TestResult()
case = SomeCase('test_foo')
from_run_test = case.run(result)
self.assertThat(from_run_test, Is(marker))
def test_works_as_inner_decorator(self):
# Even if run_test_with is the innermost decorator, it will be
# respected.
def wrapped(function):
"""Silly, trivial decorator."""
def decorated(*args, **kwargs):
return function(*args, **kwargs)
decorated.__name__ = function.__name__
decorated.__dict__.update(function.__dict__)
return decorated
class SomeCase(TestCase):
@wrapped
@run_test_with(CustomRunTest)
def test_foo(self):
pass
result = TestResult()
case = SomeCase('test_foo')
from_run_test = case.run(result)
self.assertThat(from_run_test, Is(CustomRunTest.marker))
def test_constructor_overrides_decorator(self):
# If a 'runTest' argument is passed to the test's constructor, that
# overrides the decorator.
marker = object()
class DifferentRunTest(RunTest):
def run(self, result=None):
return marker
class SomeCase(TestCase):
@run_test_with(CustomRunTest)
def test_foo(self):
pass
result = TestResult()
case = SomeCase('test_foo', runTest=DifferentRunTest)
from_run_test = case.run(result)
self.assertThat(from_run_test, Is(marker))
def test_suite():
from unittest import TestLoader
return TestLoader().loadTestsFromName(__name__)
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