revert fixture decorator for now, switch to append. no more globals
diff --git a/tests/conftest.py b/tests/conftest.py
index b9879f8..a9acb54 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -8,20 +8,12 @@
from .utils import check_for_iface, check_backend_support, select_backends
-# copy all backends so we can mutate it.This variable is used in generate
-# tests to allow us to target a single backend without changing _ALL_BACKENDS
-_SELECTED_BACKENDS = list(_ALL_BACKENDS)
-
-
def pytest_generate_tests(metafunc):
- global _SELECTED_BACKENDS
names = metafunc.config.getoption("--backend")
- _SELECTED_BACKENDS = select_backends(names, _SELECTED_BACKENDS)
+ selected_backends = select_backends(names, _ALL_BACKENDS)
-
-@pytest.fixture(params=_SELECTED_BACKENDS)
-def backend(request):
- return request.param
+ if "backend" in metafunc.fixturenames:
+ metafunc.parametrize("backend", selected_backends)
@pytest.mark.trylast