test_ok2/testing/test_unittest.py

1029 lines
28 KiB
Python

from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import gc
import pytest
from _pytest.main import EXIT_NOTESTSCOLLECTED
def test_simple_unittest(testdir):
testpath = testdir.makepyfile(
"""
import unittest
class MyTestCase(unittest.TestCase):
def testpassing(self):
self.assertEqual('foo', 'foo')
def test_failing(self):
self.assertEqual('foo', 'bar')
"""
)
reprec = testdir.inline_run(testpath)
assert reprec.matchreport("testpassing").passed
assert reprec.matchreport("test_failing").failed
def test_runTest_method(testdir):
testdir.makepyfile(
"""
import unittest
class MyTestCaseWithRunTest(unittest.TestCase):
def runTest(self):
self.assertEqual('foo', 'foo')
class MyTestCaseWithoutRunTest(unittest.TestCase):
def runTest(self):
self.assertEqual('foo', 'foo')
def test_something(self):
pass
"""
)
result = testdir.runpytest("-v")
result.stdout.fnmatch_lines(
"""
*MyTestCaseWithRunTest::runTest*
*MyTestCaseWithoutRunTest::test_something*
*2 passed*
"""
)
def test_isclasscheck_issue53(testdir):
testpath = testdir.makepyfile(
"""
import unittest
class _E(object):
def __getattr__(self, tag):
pass
E = _E()
"""
)
result = testdir.runpytest(testpath)
assert result.ret == EXIT_NOTESTSCOLLECTED
def test_setup(testdir):
testpath = testdir.makepyfile(
"""
import unittest
class MyTestCase(unittest.TestCase):
def setUp(self):
self.foo = 1
def setup_method(self, method):
self.foo2 = 1
def test_both(self):
self.assertEqual(1, self.foo)
assert self.foo2 == 1
def teardown_method(self, method):
assert 0, "42"
"""
)
reprec = testdir.inline_run("-s", testpath)
assert reprec.matchreport("test_both", when="call").passed
rep = reprec.matchreport("test_both", when="teardown")
assert rep.failed and "42" in str(rep.longrepr)
def test_setUpModule(testdir):
testpath = testdir.makepyfile(
"""
values = []
def setUpModule():
values.append(1)
def tearDownModule():
del values[0]
def test_hello():
assert values == [1]
def test_world():
assert values == [1]
"""
)
result = testdir.runpytest(testpath)
result.stdout.fnmatch_lines(["*2 passed*"])
def test_setUpModule_failing_no_teardown(testdir):
testpath = testdir.makepyfile(
"""
values = []
def setUpModule():
0/0
def tearDownModule():
values.append(1)
def test_hello():
pass
"""
)
reprec = testdir.inline_run(testpath)
reprec.assertoutcome(passed=0, failed=1)
call = reprec.getcalls("pytest_runtest_setup")[0]
assert not call.item.module.values
def test_new_instances(testdir):
testpath = testdir.makepyfile(
"""
import unittest
class MyTestCase(unittest.TestCase):
def test_func1(self):
self.x = 2
def test_func2(self):
assert not hasattr(self, 'x')
"""
)
reprec = testdir.inline_run(testpath)
reprec.assertoutcome(passed=2)
def test_teardown(testdir):
testpath = testdir.makepyfile(
"""
import unittest
class MyTestCase(unittest.TestCase):
values = []
def test_one(self):
pass
def tearDown(self):
self.values.append(None)
class Second(unittest.TestCase):
def test_check(self):
self.assertEqual(MyTestCase.values, [None])
"""
)
reprec = testdir.inline_run(testpath)
passed, skipped, failed = reprec.countoutcomes()
assert failed == 0, failed
assert passed == 2
assert passed + skipped + failed == 2
def test_teardown_issue1649(testdir):
"""
Are TestCase objects cleaned up? Often unittest TestCase objects set
attributes that are large and expensive during setUp.
The TestCase will not be cleaned up if the test fails, because it
would then exist in the stackframe.
"""
testpath = testdir.makepyfile(
"""
import unittest
class TestCaseObjectsShouldBeCleanedUp(unittest.TestCase):
def setUp(self):
self.an_expensive_object = 1
def test_demo(self):
pass
"""
)
testdir.inline_run("-s", testpath)
gc.collect()
for obj in gc.get_objects():
assert type(obj).__name__ != "TestCaseObjectsShouldBeCleanedUp"
def test_unittest_skip_issue148(testdir):
testpath = testdir.makepyfile(
"""
import unittest
@unittest.skip("hello")
class MyTestCase(unittest.TestCase):
@classmethod
def setUpClass(self):
xxx
def test_one(self):
pass
@classmethod
def tearDownClass(self):
xxx
"""
)
reprec = testdir.inline_run(testpath)
reprec.assertoutcome(skipped=1)
def test_method_and_teardown_failing_reporting(testdir):
testdir.makepyfile(
"""
import unittest, pytest
class TC(unittest.TestCase):
def tearDown(self):
assert 0, "down1"
def test_method(self):
assert False, "down2"
"""
)
result = testdir.runpytest("-s")
assert result.ret == 1
result.stdout.fnmatch_lines(
[
"*tearDown*",
"*assert 0*",
"*test_method*",
"*assert False*",
"*1 failed*1 error*",
]
)
def test_setup_failure_is_shown(testdir):
testdir.makepyfile(
"""
import unittest
import pytest
class TC(unittest.TestCase):
def setUp(self):
assert 0, "down1"
def test_method(self):
print ("never42")
xyz
"""
)
result = testdir.runpytest("-s")
assert result.ret == 1
result.stdout.fnmatch_lines(["*setUp*", "*assert 0*down1*", "*1 failed*"])
assert "never42" not in result.stdout.str()
def test_setup_setUpClass(testdir):
testpath = testdir.makepyfile(
"""
import unittest
import pytest
class MyTestCase(unittest.TestCase):
x = 0
@classmethod
def setUpClass(cls):
cls.x += 1
def test_func1(self):
assert self.x == 1
def test_func2(self):
assert self.x == 1
@classmethod
def tearDownClass(cls):
cls.x -= 1
def test_teareddown():
assert MyTestCase.x == 0
"""
)
reprec = testdir.inline_run(testpath)
reprec.assertoutcome(passed=3)
def test_setup_class(testdir):
testpath = testdir.makepyfile(
"""
import unittest
import pytest
class MyTestCase(unittest.TestCase):
x = 0
def setup_class(cls):
cls.x += 1
def test_func1(self):
assert self.x == 1
def test_func2(self):
assert self.x == 1
def teardown_class(cls):
cls.x -= 1
def test_teareddown():
assert MyTestCase.x == 0
"""
)
reprec = testdir.inline_run(testpath)
reprec.assertoutcome(passed=3)
@pytest.mark.parametrize("type", ["Error", "Failure"])
def test_testcase_adderrorandfailure_defers(testdir, type):
testdir.makepyfile(
"""
from unittest import TestCase
import pytest
class MyTestCase(TestCase):
def run(self, result):
excinfo = pytest.raises(ZeroDivisionError, lambda: 0/0)
try:
result.add%s(self, excinfo._excinfo)
except KeyboardInterrupt:
raise
except:
pytest.fail("add%s should not raise")
def test_hello(self):
pass
"""
% (type, type)
)
result = testdir.runpytest()
assert "should not raise" not in result.stdout.str()
@pytest.mark.parametrize("type", ["Error", "Failure"])
def test_testcase_custom_exception_info(testdir, type):
testdir.makepyfile(
"""
from unittest import TestCase
import py, pytest
import _pytest._code
class MyTestCase(TestCase):
def run(self, result):
excinfo = pytest.raises(ZeroDivisionError, lambda: 0/0)
# we fake an incompatible exception info
from _pytest.monkeypatch import MonkeyPatch
mp = MonkeyPatch()
def t(*args):
mp.undo()
raise TypeError()
mp.setattr(_pytest._code, 'ExceptionInfo', t)
try:
excinfo = excinfo._excinfo
result.add%(type)s(self, excinfo)
finally:
mp.undo()
def test_hello(self):
pass
"""
% locals()
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(
[
"NOTE: Incompatible Exception Representation*",
"*ZeroDivisionError*",
"*1 failed*",
]
)
def test_testcase_totally_incompatible_exception_info(testdir):
item, = testdir.getitems(
"""
from unittest import TestCase
class MyTestCase(TestCase):
def test_hello(self):
pass
"""
)
item.addError(None, 42)
excinfo = item._excinfo.pop(0)
assert "ERROR: Unknown Incompatible" in str(excinfo.getrepr())
def test_module_level_pytestmark(testdir):
testpath = testdir.makepyfile(
"""
import unittest
import pytest
pytestmark = pytest.mark.xfail
class MyTestCase(unittest.TestCase):
def test_func1(self):
assert 0
"""
)
reprec = testdir.inline_run(testpath, "-s")
reprec.assertoutcome(skipped=1)
class TestTrialUnittest(object):
def setup_class(cls):
cls.ut = pytest.importorskip("twisted.trial.unittest")
# on windows trial uses a socket for a reactor and apparently doesn't close it properly
# https://twistedmatrix.com/trac/ticket/9227
cls.ignore_unclosed_socket_warning = ("-W", "always")
def test_trial_testcase_runtest_not_collected(self, testdir):
testdir.makepyfile(
"""
from twisted.trial.unittest import TestCase
class TC(TestCase):
def test_hello(self):
pass
"""
)
reprec = testdir.inline_run(*self.ignore_unclosed_socket_warning)
reprec.assertoutcome(passed=1)
testdir.makepyfile(
"""
from twisted.trial.unittest import TestCase
class TC(TestCase):
def runTest(self):
pass
"""
)
reprec = testdir.inline_run(*self.ignore_unclosed_socket_warning)
reprec.assertoutcome(passed=1)
def test_trial_exceptions_with_skips(self, testdir):
testdir.makepyfile(
"""
from twisted.trial import unittest
import pytest
class TC(unittest.TestCase):
def test_hello(self):
pytest.skip("skip_in_method")
@pytest.mark.skipif("sys.version_info != 1")
def test_hello2(self):
pass
@pytest.mark.xfail(reason="iwanto")
def test_hello3(self):
assert 0
def test_hello4(self):
pytest.xfail("i2wanto")
def test_trial_skip(self):
pass
test_trial_skip.skip = "trialselfskip"
def test_trial_todo(self):
assert 0
test_trial_todo.todo = "mytodo"
def test_trial_todo_success(self):
pass
test_trial_todo_success.todo = "mytodo"
class TC2(unittest.TestCase):
def setup_class(cls):
pytest.skip("skip_in_setup_class")
def test_method(self):
pass
"""
)
from _pytest.compat import _is_unittest_unexpected_success_a_failure
should_fail = _is_unittest_unexpected_success_a_failure()
result = testdir.runpytest("-rxs", *self.ignore_unclosed_socket_warning)
result.stdout.fnmatch_lines_random(
[
"*XFAIL*test_trial_todo*",
"*trialselfskip*",
"*skip_in_setup_class*",
"*iwanto*",
"*i2wanto*",
"*sys.version_info*",
"*skip_in_method*",
"*1 failed*4 skipped*3 xfailed*"
if should_fail
else "*4 skipped*3 xfail*1 xpass*",
]
)
assert result.ret == (1 if should_fail else 0)
def test_trial_error(self, testdir):
testdir.makepyfile(
"""
from twisted.trial.unittest import TestCase
from twisted.internet.defer import Deferred
from twisted.internet import reactor
class TC(TestCase):
def test_one(self):
crash
def test_two(self):
def f(_):
crash
d = Deferred()
d.addCallback(f)
reactor.callLater(0.3, d.callback, None)
return d
def test_three(self):
def f():
pass # will never get called
reactor.callLater(0.3, f)
# will crash at teardown
def test_four(self):
def f(_):
reactor.callLater(0.3, f)
crash
d = Deferred()
d.addCallback(f)
reactor.callLater(0.3, d.callback, None)
return d
# will crash both at test time and at teardown
"""
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(
[
"*ERRORS*",
"*DelayedCalls*",
"*test_four*",
"*NameError*crash*",
"*test_one*",
"*NameError*crash*",
"*test_three*",
"*DelayedCalls*",
"*test_two*",
"*crash*",
]
)
def test_trial_pdb(self, testdir):
p = testdir.makepyfile(
"""
from twisted.trial import unittest
import pytest
class TC(unittest.TestCase):
def test_hello(self):
assert 0, "hellopdb"
"""
)
child = testdir.spawn_pytest(p)
child.expect("hellopdb")
child.sendeof()
def test_trial_testcase_skip_property(self, testdir):
testpath = testdir.makepyfile(
"""
from twisted.trial import unittest
class MyTestCase(unittest.TestCase):
skip = 'dont run'
def test_func(self):
pass
"""
)
reprec = testdir.inline_run(testpath, "-s")
reprec.assertoutcome(skipped=1)
def test_trial_testfunction_skip_property(self, testdir):
testpath = testdir.makepyfile(
"""
from twisted.trial import unittest
class MyTestCase(unittest.TestCase):
def test_func(self):
pass
test_func.skip = 'dont run'
"""
)
reprec = testdir.inline_run(testpath, "-s")
reprec.assertoutcome(skipped=1)
def test_trial_testcase_todo_property(self, testdir):
testpath = testdir.makepyfile(
"""
from twisted.trial import unittest
class MyTestCase(unittest.TestCase):
todo = 'dont run'
def test_func(self):
assert 0
"""
)
reprec = testdir.inline_run(testpath, "-s")
reprec.assertoutcome(skipped=1)
def test_trial_testfunction_todo_property(self, testdir):
testpath = testdir.makepyfile(
"""
from twisted.trial import unittest
class MyTestCase(unittest.TestCase):
def test_func(self):
assert 0
test_func.todo = 'dont run'
"""
)
reprec = testdir.inline_run(
testpath, "-s", *self.ignore_unclosed_socket_warning
)
reprec.assertoutcome(skipped=1)
def test_djangolike_testcase(testdir):
# contributed from Morten Breekevold
testdir.makepyfile(
"""
from unittest import TestCase, main
class DjangoLikeTestCase(TestCase):
def setUp(self):
print ("setUp()")
def test_presetup_has_been_run(self):
print ("test_thing()")
self.assertTrue(hasattr(self, 'was_presetup'))
def tearDown(self):
print ("tearDown()")
def __call__(self, result=None):
try:
self._pre_setup()
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
import sys
result.addError(self, sys.exc_info())
return
super(DjangoLikeTestCase, self).__call__(result)
try:
self._post_teardown()
except (KeyboardInterrupt, SystemExit):
raise
except Exception:
import sys
result.addError(self, sys.exc_info())
return
def _pre_setup(self):
print ("_pre_setup()")
self.was_presetup = True
def _post_teardown(self):
print ("_post_teardown()")
"""
)
result = testdir.runpytest("-s")
assert result.ret == 0
result.stdout.fnmatch_lines(
[
"*_pre_setup()*",
"*setUp()*",
"*test_thing()*",
"*tearDown()*",
"*_post_teardown()*",
]
)
def test_unittest_not_shown_in_traceback(testdir):
testdir.makepyfile(
"""
import unittest
class t(unittest.TestCase):
def test_hello(self):
x = 3
self.assertEqual(x, 4)
"""
)
res = testdir.runpytest()
assert "failUnlessEqual" not in res.stdout.str()
def test_unorderable_types(testdir):
testdir.makepyfile(
"""
import unittest
class TestJoinEmpty(unittest.TestCase):
pass
def make_test():
class Test(unittest.TestCase):
pass
Test.__name__ = "TestFoo"
return Test
TestFoo = make_test()
"""
)
result = testdir.runpytest()
assert "TypeError" not in result.stdout.str()
assert result.ret == EXIT_NOTESTSCOLLECTED
def test_unittest_typerror_traceback(testdir):
testdir.makepyfile(
"""
import unittest
class TestJoinEmpty(unittest.TestCase):
def test_hello(self, arg1):
pass
"""
)
result = testdir.runpytest()
assert "TypeError" in result.stdout.str()
assert result.ret == 1
@pytest.mark.parametrize("runner", ["pytest", "unittest"])
def test_unittest_expected_failure_for_failing_test_is_xfail(testdir, runner):
script = testdir.makepyfile(
"""
import unittest
class MyTestCase(unittest.TestCase):
@unittest.expectedFailure
def test_failing_test_is_xfail(self):
assert False
if __name__ == '__main__':
unittest.main()
"""
)
if runner == "pytest":
result = testdir.runpytest("-rxX")
result.stdout.fnmatch_lines(
["*XFAIL*MyTestCase*test_failing_test_is_xfail*", "*1 xfailed*"]
)
else:
result = testdir.runpython(script)
result.stderr.fnmatch_lines(["*1 test in*", "*OK*(expected failures=1)*"])
assert result.ret == 0
@pytest.mark.parametrize("runner", ["pytest", "unittest"])
def test_unittest_expected_failure_for_passing_test_is_fail(testdir, runner):
script = testdir.makepyfile(
"""
import unittest
class MyTestCase(unittest.TestCase):
@unittest.expectedFailure
def test_passing_test_is_fail(self):
assert True
if __name__ == '__main__':
unittest.main()
"""
)
from _pytest.compat import _is_unittest_unexpected_success_a_failure
should_fail = _is_unittest_unexpected_success_a_failure()
if runner == "pytest":
result = testdir.runpytest("-rxX")
result.stdout.fnmatch_lines(
[
"*MyTestCase*test_passing_test_is_fail*",
"*1 failed*" if should_fail else "*1 xpassed*",
]
)
else:
result = testdir.runpython(script)
result.stderr.fnmatch_lines(["*1 test in*", "*(unexpected successes=1)*"])
assert result.ret == (1 if should_fail else 0)
@pytest.mark.parametrize(
"fix_type, stmt", [("fixture", "return"), ("yield_fixture", "yield")]
)
def test_unittest_setup_interaction(testdir, fix_type, stmt):
testdir.makepyfile(
"""
import unittest
import pytest
class MyTestCase(unittest.TestCase):
@pytest.{fix_type}(scope="class", autouse=True)
def perclass(self, request):
request.cls.hello = "world"
{stmt}
@pytest.{fix_type}(scope="function", autouse=True)
def perfunction(self, request):
request.instance.funcname = request.function.__name__
{stmt}
def test_method1(self):
assert self.funcname == "test_method1"
assert self.hello == "world"
def test_method2(self):
assert self.funcname == "test_method2"
def test_classattr(self):
assert self.__class__.hello == "world"
""".format(
fix_type=fix_type, stmt=stmt
)
)
result = testdir.runpytest()
result.stdout.fnmatch_lines("*3 passed*")
def test_non_unittest_no_setupclass_support(testdir):
testpath = testdir.makepyfile(
"""
class TestFoo(object):
x = 0
@classmethod
def setUpClass(cls):
cls.x = 1
def test_method1(self):
assert self.x == 0
@classmethod
def tearDownClass(cls):
cls.x = 1
def test_not_teareddown():
assert TestFoo.x == 0
"""
)
reprec = testdir.inline_run(testpath)
reprec.assertoutcome(passed=2)
def test_no_teardown_if_setupclass_failed(testdir):
testpath = testdir.makepyfile(
"""
import unittest
class MyTestCase(unittest.TestCase):
x = 0
@classmethod
def setUpClass(cls):
cls.x = 1
assert False
def test_func1(self):
cls.x = 10
@classmethod
def tearDownClass(cls):
cls.x = 100
def test_notTornDown():
assert MyTestCase.x == 1
"""
)
reprec = testdir.inline_run(testpath)
reprec.assertoutcome(passed=1, failed=1)
def test_issue333_result_clearing(testdir):
testdir.makeconftest(
"""
import pytest
@pytest.hookimpl(hookwrapper=True)
def pytest_runtest_call(item):
yield
assert 0
"""
)
testdir.makepyfile(
"""
import unittest
class TestIt(unittest.TestCase):
def test_func(self):
0/0
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(failed=1)
def test_unittest_raise_skip_issue748(testdir):
testdir.makepyfile(
test_foo="""
import unittest
class MyTestCase(unittest.TestCase):
def test_one(self):
raise unittest.SkipTest('skipping due to reasons')
"""
)
result = testdir.runpytest("-v", "-rs")
result.stdout.fnmatch_lines(
"""
*SKIP*[1]*test_foo.py*skipping due to reasons*
*1 skipped*
"""
)
def test_unittest_skip_issue1169(testdir):
testdir.makepyfile(
test_foo="""
import unittest
class MyTestCase(unittest.TestCase):
@unittest.skip("skipping due to reasons")
def test_skip(self):
self.fail()
"""
)
result = testdir.runpytest("-v", "-rs")
result.stdout.fnmatch_lines(
"""
*SKIP*[1]*skipping due to reasons*
*1 skipped*
"""
)
def test_class_method_containing_test_issue1558(testdir):
testdir.makepyfile(
test_foo="""
import unittest
class MyTestCase(unittest.TestCase):
def test_should_run(self):
pass
def test_should_not_run(self):
pass
test_should_not_run.__test__ = False
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=1)
@pytest.mark.issue(3498)
@pytest.mark.parametrize(
"base", ["six.moves.builtins.object", "unittest.TestCase", "unittest2.TestCase"]
)
def test_usefixtures_marker_on_unittest(base, testdir):
module = base.rsplit(".", 1)[0]
pytest.importorskip(module)
testdir.makepyfile(
conftest="""
import pytest
@pytest.fixture(scope='function')
def fixture1(request, monkeypatch):
monkeypatch.setattr(request.instance, 'fixture1', True )
@pytest.fixture(scope='function')
def fixture2(request, monkeypatch):
monkeypatch.setattr(request.instance, 'fixture2', True )
def node_and_marks(item):
print(item.nodeid)
for mark in item.iter_markers():
print(" ", mark)
@pytest.fixture(autouse=True)
def my_marks(request):
node_and_marks(request.node)
def pytest_collection_modifyitems(items):
for item in items:
node_and_marks(item)
"""
)
testdir.makepyfile(
"""
import pytest
import {module}
class Tests({base}):
fixture1 = False
fixture2 = False
@pytest.mark.usefixtures("fixture1")
def test_one(self):
assert self.fixture1
assert not self.fixture2
@pytest.mark.usefixtures("fixture1", "fixture2")
def test_two(self):
assert self.fixture1
assert self.fixture2
""".format(
module=module, base=base
)
)
result = testdir.runpytest("-s")
result.assert_outcomes(passed=2)
def test_testcase_handles_init_exceptions(testdir):
"""
Regression test to make sure exceptions in the __init__ method are bubbled up correctly.
See https://github.com/pytest-dev/pytest/issues/3788
"""
testdir.makepyfile(
"""
from unittest import TestCase
import pytest
class MyTestCase(TestCase):
def __init__(self, *args, **kwargs):
raise Exception("should raise this exception")
def test_hello(self):
pass
"""
)
result = testdir.runpytest()
assert "should raise this exception" in result.stdout.str()
assert "ERROR at teardown of MyTestCase.test_hello" not in result.stdout.str()
def test_error_message_with_parametrized_fixtures(testdir):
testdir.copy_example("unittest/test_parametrized_fixture_error_message.py")
result = testdir.runpytest()
result.stdout.fnmatch_lines(
[
"*test_two does not support fixtures*",
"*TestSomethingElse::test_two",
"*Function type: TestCaseFunction",
]
)