diff options
Diffstat (limited to 'testing')
| -rw-r--r-- | testing/python/fixture.py | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/testing/python/fixture.py b/testing/python/fixture.py index 8dd713416..f8aef802f 100644 --- a/testing/python/fixture.py +++ b/testing/python/fixture.py @@ -2547,6 +2547,39 @@ class TestFixtureMarker(object): '*test_foo*alpha*', '*test_foo*beta*']) + @pytest.mark.issue920 + def test_deterministic_fixture_collection(self, testdir, monkeypatch): + testdir.makepyfile(""" + import pytest + + @pytest.fixture(scope="module", + params=["A", + "B", + "C"]) + def A(request): + return request.param + + @pytest.fixture(scope="module", + params=["DDDDDDDDD", "EEEEEEEEEEEE", "FFFFFFFFFFF", "banansda"]) + def B(request, A): + return request.param + + def test_foo(B): + # Something funky is going on here. + # Despite specified seeds, on what is collected, + # sometimes we get unexpected passes. hashing B seems + # to help? + assert hash(B) or True + """) + monkeypatch.setenv("PYTHONHASHSEED", "1") + out1 = testdir.runpytest_subprocess("-v") + monkeypatch.setenv("PYTHONHASHSEED", "2") + out2 = testdir.runpytest_subprocess("-v") + out1 = [line for line in out1.outlines if line.startswith("test_deterministic_fixture_collection.py::test_foo")] + out2 = [line for line in out2.outlines if line.startswith("test_deterministic_fixture_collection.py::test_foo")] + assert len(out1) == 12 + assert out1 == out2 + class TestRequestScopeAccess(object): pytestmark = pytest.mark.parametrize(("scope", "ok", "error"), [ |