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# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import absolute_import, division, print_function
import pytest
from cryptography.hazmat.backends import _available_backends
from .utils import check_backend_support, select_backends
def pytest_generate_tests(metafunc):
names = metafunc.config.getoption("--backend")
selected_backends = select_backends(names, _available_backends())
if "backend" in metafunc.fixturenames:
metafunc.parametrize("backend", selected_backends)
@pytest.mark.trylast
def pytest_runtest_setup(item):
required = item.keywords.get("requires_backend_interface")
if required is not None and "backend" in item.funcargs:
required_interfaces = tuple(
mark.kwargs["interface"] for mark in required
)
if not isinstance(item.funcargs["backend"], required_interfaces):
pytest.skip("{0} backend does not support {1}".format(
item.funcargs["backend"],
", ".join(iface.__name__ for iface in required_interfaces)
))
check_backend_support(item)
def pytest_addoption(parser):
parser.addoption(
"--backend", action="store", metavar="NAME",
help="Only run tests matching the backend NAME."
)
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