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import sys
import textwrap
import pytest
from _pytest import fixtures
from _pytest.config import ExitCode
from _pytest.fixtures import FixtureRequest
from _pytest.pathlib import Path
from _pytest.pytester import get_public_names
def test_getfuncargnames_functions():
"""Test getfuncargnames for normal functions"""
def f():
raise NotImplementedError()
assert not fixtures.getfuncargnames(f)
def g(arg):
raise NotImplementedError()
assert fixtures.getfuncargnames(g) == ("arg",)
def h(arg1, arg2="hello"):
raise NotImplementedError()
assert fixtures.getfuncargnames(h) == ("arg1",)
def j(arg1, arg2, arg3="hello"):
raise NotImplementedError()
assert fixtures.getfuncargnames(j) == ("arg1", "arg2")
def test_getfuncargnames_methods():
"""Test getfuncargnames for normal methods"""
class A:
def f(self, arg1, arg2="hello"):
raise NotImplementedError()
assert fixtures.getfuncargnames(A().f) == ("arg1",)
def test_getfuncargnames_staticmethod():
"""Test getfuncargnames for staticmethods"""
class A:
@staticmethod
def static(arg1, arg2, x=1):
raise NotImplementedError()
assert fixtures.getfuncargnames(A.static, cls=A) == ("arg1", "arg2")
def test_getfuncargnames_partial():
"""Check getfuncargnames for methods defined with functools.partial (#5701)"""
import functools
def check(arg1, arg2, i):
raise NotImplementedError()
class T:
test_ok = functools.partial(check, i=2)
values = fixtures.getfuncargnames(T().test_ok, name="test_ok")
assert values == ("arg1", "arg2")
def test_getfuncargnames_staticmethod_partial():
"""Check getfuncargnames for staticmethods defined with functools.partial (#5701)"""
import functools
def check(arg1, arg2, i):
raise NotImplementedError()
class T:
test_ok = staticmethod(functools.partial(check, i=2))
values = fixtures.getfuncargnames(T().test_ok, name="test_ok")
assert values == ("arg1", "arg2")
@pytest.mark.pytester_example_path("fixtures/fill_fixtures")
class TestFillFixtures:
def test_fillfuncargs_exposed(self):
# used by oejskit, kept for compatibility
assert pytest._fillfuncargs == fixtures.fillfixtures
def test_funcarg_lookupfails(self, testdir):
testdir.copy_example()
result = testdir.runpytest() # "--collect-only")
assert result.ret != 0
result.stdout.fnmatch_lines(
"""
*def test_func(some)*
*fixture*some*not found*
*xyzsomething*
"""
)
def test_detect_recursive_dependency_error(self, testdir):
testdir.copy_example()
result = testdir.runpytest()
result.stdout.fnmatch_lines(
["*recursive dependency involving fixture 'fix1' detected*"]
)
def test_funcarg_basic(self, testdir):
testdir.copy_example()
item = testdir.getitem(Path("test_funcarg_basic.py"))
item._request._fillfixtures()
del item.funcargs["request"]
assert len(get_public_names(item.funcargs)) == 2
assert item.funcargs["some"] == "test_func"
assert item.funcargs["other"] == 42
def test_funcarg_lookup_modulelevel(self, testdir):
testdir.copy_example()
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2)
def test_funcarg_lookup_classlevel(self, testdir):
p = testdir.copy_example()
result = testdir.runpytest(p)
result.stdout.fnmatch_lines(["*1 passed*"])
def test_conftest_funcargs_only_available_in_subdir(self, testdir):
testdir.copy_example()
result = testdir.runpytest("-v")
result.assert_outcomes(passed=2)
def test_extend_fixture_module_class(self, testdir):
testfile = testdir.copy_example()
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*1 passed*"])
result = testdir.runpytest(testfile)
result.stdout.fnmatch_lines(["*1 passed*"])
def test_extend_fixture_conftest_module(self, testdir):
p = testdir.copy_example()
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*1 passed*"])
result = testdir.runpytest(next(p.visit("test_*.py")))
result.stdout.fnmatch_lines(["*1 passed*"])
def test_extend_fixture_conftest_conftest(self, testdir):
p = testdir.copy_example()
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*1 passed*"])
result = testdir.runpytest(next(p.visit("test_*.py")))
result.stdout.fnmatch_lines(["*1 passed*"])
def test_extend_fixture_conftest_plugin(self, testdir):
testdir.makepyfile(
testplugin="""
import pytest
@pytest.fixture
def foo():
return 7
"""
)
testdir.syspathinsert()
testdir.makeconftest(
"""
import pytest
pytest_plugins = 'testplugin'
@pytest.fixture
def foo(foo):
return foo + 7
"""
)
testdir.makepyfile(
"""
def test_foo(foo):
assert foo == 14
"""
)
result = testdir.runpytest("-s")
assert result.ret == 0
def test_extend_fixture_plugin_plugin(self, testdir):
# Two plugins should extend each order in loading order
testdir.makepyfile(
testplugin0="""
import pytest
@pytest.fixture
def foo():
return 7
"""
)
testdir.makepyfile(
testplugin1="""
import pytest
@pytest.fixture
def foo(foo):
return foo + 7
"""
)
testdir.syspathinsert()
testdir.makepyfile(
"""
pytest_plugins = ['testplugin0', 'testplugin1']
def test_foo(foo):
assert foo == 14
"""
)
result = testdir.runpytest()
assert result.ret == 0
def test_override_parametrized_fixture_conftest_module(self, testdir):
"""Test override of the parametrized fixture with non-parametrized one on the test module level."""
testdir.makeconftest(
"""
import pytest
@pytest.fixture(params=[1, 2, 3])
def spam(request):
return request.param
"""
)
testfile = testdir.makepyfile(
"""
import pytest
@pytest.fixture
def spam():
return 'spam'
def test_spam(spam):
assert spam == 'spam'
"""
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*1 passed*"])
result = testdir.runpytest(testfile)
result.stdout.fnmatch_lines(["*1 passed*"])
def test_override_parametrized_fixture_conftest_conftest(self, testdir):
"""Test override of the parametrized fixture with non-parametrized one on the conftest level."""
testdir.makeconftest(
"""
import pytest
@pytest.fixture(params=[1, 2, 3])
def spam(request):
return request.param
"""
)
subdir = testdir.mkpydir("subdir")
subdir.join("conftest.py").write(
textwrap.dedent(
"""\
import pytest
@pytest.fixture
def spam():
return 'spam'
"""
)
)
testfile = subdir.join("test_spam.py")
testfile.write(
textwrap.dedent(
"""\
def test_spam(spam):
assert spam == "spam"
"""
)
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*1 passed*"])
result = testdir.runpytest(testfile)
result.stdout.fnmatch_lines(["*1 passed*"])
def test_override_non_parametrized_fixture_conftest_module(self, testdir):
"""Test override of the non-parametrized fixture with parametrized one on the test module level."""
testdir.makeconftest(
"""
import pytest
@pytest.fixture
def spam():
return 'spam'
"""
)
testfile = testdir.makepyfile(
"""
import pytest
@pytest.fixture(params=[1, 2, 3])
def spam(request):
return request.param
params = {'spam': 1}
def test_spam(spam):
assert spam == params['spam']
params['spam'] += 1
"""
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*3 passed*"])
result = testdir.runpytest(testfile)
result.stdout.fnmatch_lines(["*3 passed*"])
def test_override_non_parametrized_fixture_conftest_conftest(self, testdir):
"""Test override of the non-parametrized fixture with parametrized one on the conftest level."""
testdir.makeconftest(
"""
import pytest
@pytest.fixture
def spam():
return 'spam'
"""
)
subdir = testdir.mkpydir("subdir")
subdir.join("conftest.py").write(
textwrap.dedent(
"""\
import pytest
@pytest.fixture(params=[1, 2, 3])
def spam(request):
return request.param
"""
)
)
testfile = subdir.join("test_spam.py")
testfile.write(
textwrap.dedent(
"""\
params = {'spam': 1}
def test_spam(spam):
assert spam == params['spam']
params['spam'] += 1
"""
)
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*3 passed*"])
result = testdir.runpytest(testfile)
result.stdout.fnmatch_lines(["*3 passed*"])
def test_override_autouse_fixture_with_parametrized_fixture_conftest_conftest(
self, testdir
):
"""Test override of the autouse fixture with parametrized one on the conftest level.
This test covers the issue explained in issue 1601
"""
testdir.makeconftest(
"""
import pytest
@pytest.fixture(autouse=True)
def spam():
return 'spam'
"""
)
subdir = testdir.mkpydir("subdir")
subdir.join("conftest.py").write(
textwrap.dedent(
"""\
import pytest
@pytest.fixture(params=[1, 2, 3])
def spam(request):
return request.param
"""
)
)
testfile = subdir.join("test_spam.py")
testfile.write(
textwrap.dedent(
"""\
params = {'spam': 1}
def test_spam(spam):
assert spam == params['spam']
params['spam'] += 1
"""
)
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*3 passed*"])
result = testdir.runpytest(testfile)
result.stdout.fnmatch_lines(["*3 passed*"])
def test_autouse_fixture_plugin(self, testdir):
# A fixture from a plugin has no baseid set, which screwed up
# the autouse fixture handling.
testdir.makepyfile(
testplugin="""
import pytest
@pytest.fixture(autouse=True)
def foo(request):
request.function.foo = 7
"""
)
testdir.syspathinsert()
testdir.makepyfile(
"""
pytest_plugins = 'testplugin'
def test_foo(request):
assert request.function.foo == 7
"""
)
result = testdir.runpytest()
assert result.ret == 0
def test_funcarg_lookup_error(self, testdir):
testdir.makeconftest(
"""
import pytest
@pytest.fixture
def a_fixture(): pass
@pytest.fixture
def b_fixture(): pass
@pytest.fixture
def c_fixture(): pass
@pytest.fixture
def d_fixture(): pass
"""
)
testdir.makepyfile(
"""
def test_lookup_error(unknown):
pass
"""
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(
[
"*ERROR at setup of test_lookup_error*",
" def test_lookup_error(unknown):*",
"E fixture 'unknown' not found",
"> available fixtures:*a_fixture,*b_fixture,*c_fixture,*d_fixture*monkeypatch,*",
# sorted
"> use 'py*test --fixtures *' for help on them.",
"*1 error*",
]
)
result.stdout.no_fnmatch_line("*INTERNAL*")
def test_fixture_excinfo_leak(self, testdir):
# on python2 sys.excinfo would leak into fixture executions
testdir.makepyfile(
"""
import sys
import traceback
import pytest
@pytest.fixture
def leak():
if sys.exc_info()[0]: # python3 bug :)
traceback.print_exc()
#fails
assert sys.exc_info() == (None, None, None)
def test_leak(leak):
if sys.exc_info()[0]: # python3 bug :)
traceback.print_exc()
assert sys.exc_info() == (None, None, None)
"""
)
result = testdir.runpytest()
assert result.ret == 0
class TestRequestBasic:
def test_request_attributes(self, testdir):
item = testdir.getitem(
"""
import pytest
@pytest.fixture
def something(request): pass
def test_func(something): pass
"""
)
req = fixtures.FixtureRequest(item)
assert req.function == item.obj
assert req.keywords == item.keywords
assert hasattr(req.module, "test_func")
assert req.cls is None
assert req.function.__name__ == "test_func"
assert req.config == item.config
assert repr(req).find(req.function.__name__) != -1
def test_request_attributes_method(self, testdir):
(item,) = testdir.getitems(
"""
import pytest
class TestB(object):
@pytest.fixture
def something(self, request):
return 1
def test_func(self, something):
pass
"""
)
req = item._request
assert req.cls.__name__ == "TestB"
assert req.instance.__class__ == req.cls
def test_request_contains_funcarg_arg2fixturedefs(self, testdir):
modcol = testdir.getmodulecol(
"""
import pytest
@pytest.fixture
def something(request):
pass
class TestClass(object):
def test_method(self, something):
pass
"""
)
(item1,) = testdir.genitems([modcol])
assert item1.name == "test_method"
arg2fixturedefs = fixtures.FixtureRequest(item1)._arg2fixturedefs
assert len(arg2fixturedefs) == 1
assert arg2fixturedefs["something"][0].argname == "something"
@pytest.mark.skipif(
hasattr(sys, "pypy_version_info"),
reason="this method of test doesn't work on pypy",
)
def test_request_garbage(self, testdir):
try:
import xdist # noqa
except ImportError:
pass
else:
pytest.xfail("this test is flaky when executed with xdist")
testdir.makepyfile(
"""
import sys
import pytest
from _pytest.fixtures import PseudoFixtureDef
import gc
@pytest.fixture(autouse=True)
def something(request):
original = gc.get_debug()
gc.set_debug(gc.DEBUG_SAVEALL)
gc.collect()
yield
try:
gc.collect()
leaked = [x for _ in gc.garbage if isinstance(_, PseudoFixtureDef)]
assert leaked == []
finally:
gc.set_debug(original)
def test_func():
pass
"""
)
result = testdir.runpytest_subprocess()
result.stdout.fnmatch_lines(["* 1 passed in *"])
def test_getfixturevalue_recursive(self, testdir):
testdir.makeconftest(
"""
import pytest
@pytest.fixture
def something(request):
return 1
"""
)
testdir.makepyfile(
"""
import pytest
@pytest.fixture
def something(request):
return request.getfixturevalue("something") + 1
def test_func(something):
assert something == 2
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=1)
def test_getfixturevalue_teardown(self, testdir):
"""
Issue #1895
`test_inner` requests `inner` fixture, which in turn requests `resource`
using `getfixturevalue`. `test_func` then requests `resource`.
`resource` is teardown before `inner` because the fixture mechanism won't consider
`inner` dependent on `resource` when it is used via `getfixturevalue`: `test_func`
will then cause the `resource`'s finalizer to be called first because of this.
"""
testdir.makepyfile(
"""
import pytest
@pytest.fixture(scope='session')
def resource():
r = ['value']
yield r
r.pop()
@pytest.fixture(scope='session')
def inner(request):
resource = request.getfixturevalue('resource')
assert resource == ['value']
yield
assert resource == ['value']
def test_inner(inner):
pass
def test_func(resource):
pass
"""
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(["* 2 passed in *"])
def test_getfixturevalue(self, testdir):
item = testdir.getitem(
"""
import pytest
values = [2]
@pytest.fixture
def something(request): return 1
@pytest.fixture
def other(request):
return values.pop()
def test_func(something): pass
"""
)
req = item._request
with pytest.raises(pytest.FixtureLookupError):
req.getfixturevalue("notexists")
val = req.getfixturevalue("something")
assert val == 1
val = req.getfixturevalue("something")
assert val == 1
val2 = req.getfixturevalue("other")
assert val2 == 2
val2 = req.getfixturevalue("other") # see about caching
assert val2 == 2
item._request._fillfixtures()
assert item.funcargs["something"] == 1
assert len(get_public_names(item.funcargs)) == 2
assert "request" in item.funcargs
def test_request_addfinalizer(self, testdir):
item = testdir.getitem(
"""
import pytest
teardownlist = []
@pytest.fixture
def something(request):
request.addfinalizer(lambda: teardownlist.append(1))
def test_func(something): pass
"""
)
item.session._setupstate.prepare(item)
item._request._fillfixtures()
# successively check finalization calls
teardownlist = item.getparent(pytest.Module).obj.teardownlist
ss = item.session._setupstate
assert not teardownlist
ss.teardown_exact(item, None)
print(ss.stack)
assert teardownlist == [1]
def test_request_addfinalizer_failing_setup(self, testdir):
testdir.makepyfile(
"""
import pytest
values = [1]
@pytest.fixture
def myfix(request):
request.addfinalizer(values.pop)
assert 0
def test_fix(myfix):
pass
def test_finalizer_ran():
assert not values
"""
)
reprec = testdir.inline_run("-s")
reprec.assertoutcome(failed=1, passed=1)
def test_request_addfinalizer_failing_setup_module(self, testdir):
testdir.makepyfile(
"""
import pytest
values = [1, 2]
@pytest.fixture(scope="module")
def myfix(request):
request.addfinalizer(values.pop)
request.addfinalizer(values.pop)
assert 0
def test_fix(myfix):
pass
"""
)
reprec = testdir.inline_run("-s")
mod = reprec.getcalls("pytest_runtest_setup")[0].item.module
assert not mod.values
def test_request_addfinalizer_partial_setup_failure(self, testdir):
p = testdir.makepyfile(
"""
import pytest
values = []
@pytest.fixture
def something(request):
request.addfinalizer(lambda: values.append(None))
def test_func(something, missingarg):
pass
def test_second():
assert len(values) == 1
"""
)
result = testdir.runpytest(p)
result.stdout.fnmatch_lines(
["*1 error*"] # XXX the whole module collection fails
)
def test_request_subrequest_addfinalizer_exceptions(self, testdir):
"""
Ensure exceptions raised during teardown by a finalizer are suppressed
until all finalizers are called, re-raising the first exception (#2440)
"""
testdir.makepyfile(
"""
import pytest
values = []
def _excepts(where):
raise Exception('Error in %s fixture' % where)
@pytest.fixture
def subrequest(request):
return request
@pytest.fixture
def something(subrequest):
subrequest.addfinalizer(lambda: values.append(1))
subrequest.addfinalizer(lambda: values.append(2))
subrequest.addfinalizer(lambda: _excepts('something'))
@pytest.fixture
def excepts(subrequest):
subrequest.addfinalizer(lambda: _excepts('excepts'))
subrequest.addfinalizer(lambda: values.append(3))
def test_first(something, excepts):
pass
def test_second():
assert values == [3, 2, 1]
"""
)
result = testdir.runpytest()
result.stdout.fnmatch_lines(
["*Exception: Error in excepts fixture", "* 2 passed, 1 error in *"]
)
def test_request_getmodulepath(self, testdir):
modcol = testdir.getmodulecol("def test_somefunc(): pass")
(item,) = testdir.genitems([modcol])
req = fixtures.FixtureRequest(item)
assert req.fspath == modcol.fspath
def test_request_fixturenames(self, testdir):
testdir.makepyfile(
"""
import pytest
from _pytest.pytester import get_public_names
@pytest.fixture()
def arg1():
pass
@pytest.fixture()
def farg(arg1):
pass
@pytest.fixture(autouse=True)
def sarg(tmpdir):
pass
def test_function(request, farg):
assert set(get_public_names(request.fixturenames)) == \
set(["tmpdir", "sarg", "arg1", "request", "farg",
"tmp_path", "tmp_path_factory"])
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=1)
def test_request_fixturenames_dynamic_fixture(self, testdir):
"""Regression test for #3057"""
testdir.copy_example("fixtures/test_getfixturevalue_dynamic.py")
result = testdir.runpytest()
result.stdout.fnmatch_lines(["*1 passed*"])
def test_funcargnames_compatattr(self, testdir):
testdir.makepyfile(
"""
import pytest
def pytest_generate_tests(metafunc):
with pytest.warns(pytest.PytestDeprecationWarning):
assert metafunc.funcargnames == metafunc.fixturenames
@pytest.fixture
def fn(request):
with pytest.warns(pytest.PytestDeprecationWarning):
assert request._pyfuncitem.funcargnames == \
request._pyfuncitem.fixturenames
with pytest.warns(pytest.PytestDeprecationWarning):
return request.funcargnames, request.fixturenames
def test_hello(fn):
assert fn[0] == fn[1]
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=1)
def test_setupdecorator_and_xunit(self, testdir):
testdir.makepyfile(
"""
import pytest
values = []
@pytest.fixture(scope='module', autouse=True)
def setup_module():
values.append("module")
@pytest.fixture(autouse=True)
def setup_function():
values.append("function")
def test_func():
pass
class TestClass(object):
@pytest.fixture(scope="class", autouse=True)
def setup_class(self):
values.append("class")
@pytest.fixture(autouse=True)
def setup_method(self):
values.append("method")
def test_method(self):
pass
def test_all():
assert values == ["module", "function", "class",
"function", "method", "function"]
"""
)
reprec = testdir.inline_run("-v")
reprec.assertoutcome(passed=3)
def test_fixtures_sub_subdir_normalize_sep(self, testdir):
# this tests that normalization of nodeids takes place
b = testdir.mkdir("tests").mkdir("unit")
b.join("conftest.py").write(
textwrap.dedent(
"""\
import pytest
@pytest.fixture
def arg1():
pass
"""
)
)
p = b.join("test_module.py")
p.write("def test_func(arg1): pass")
result = testdir.runpytest(p, "--fixtures")
assert result.ret == 0
result.stdout.fnmatch_lines(
"""
*fixtures defined*conftest*
*arg1*
"""
)
def test_show_fixtures_color_yes(self, testdir):
testdir.makepyfile("def test_this(): assert 1")
result = testdir.runpytest("--color=yes", "--fixtures")
assert "\x1b[32mtmpdir" in result.stdout.str()
def test_newstyle_with_request(self, testdir):
testdir.makepyfile(
"""
import pytest
@pytest.fixture()
def arg(request):
pass
def test_1(arg):
pass
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=1)
def test_setupcontext_no_param(self, testdir):
testdir.makepyfile(
"""
import pytest
@pytest.fixture(params=[1,2])
def arg(request):
return request.param
@pytest.fixture(autouse=True)
def mysetup(request, arg):
assert not hasattr(request, "param")
def test_1(arg):
assert arg in (1,2)
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2)
class TestRequestMarking:
def test_applymarker(self, testdir):
item1, item2 = testdir.getitems(
"""
import pytest
@pytest.fixture
def something(request):
pass
class TestClass(object):
def test_func1(self, something):
pass
def test_func2(self, something):
pass
"""
)
req1 = fixtures.FixtureRequest(item1)
assert "xfail" not in item1.keywords
req1.applymarker(pytest.mark.xfail)
assert "xfail" in item1.keywords
assert "skipif" not in item1.keywords
req1.applymarker(pytest.mark.skipif)
assert "skipif" in item1.keywords
with pytest.raises(ValueError):
req1.applymarker(42)
def test_accesskeywords(self, testdir):
testdir.makepyfile(
"""
import pytest
@pytest.fixture()
def keywords(request):
return request.keywords
@pytest.mark.XYZ
def test_function(keywords):
assert keywords["XYZ"]
assert "abc" not in keywords
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=1)
def test_accessmarker_dynamic(self, testdir):
testdir.makeconftest(
"""
import pytest
@pytest.fixture()
def keywords(request):
return request.keywords
@pytest.fixture(scope="class", autouse=True)
def marking(request):
request.applymarker(pytest.mark.XYZ("hello"))
"""
)
testdir.makepyfile(
"""
import pytest
def test_fun1(keywords):
assert keywords["XYZ"] is not None
assert "abc" not in keywords
def test_fun2(keywords):
assert keywords["XYZ"] is not None
assert "abc" not in keywords
"""
)
reprec = testdir.inline_run()
reprec.assertoutcome(passed=2)