tests/conftest.py

# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import absolute_import, division, print_function

import pytest

from cryptography.hazmat.backends.openssl import backend as openssl_backend

from .utils import check_backend_support


def pytest_report_header(config):
    return "OpenSSL: {0}".format(openssl_backend.openssl_version_text())


@pytest.fixture()
def backend(request):
    required_interfaces = [
        mark.kwargs["interface"]
        for mark in request.node.get_marker("requires_backend_interface")
    ]
    if all(
        isinstance(openssl_backend, iface) for iface in required_interfaces
    ):
        return openssl_backend
    pytest.skip(
        "OpenSSL doesn't implement required interfaces: {0}".format(
            required_interfaces
        )
    )


@pytest.mark.trylast
def pytest_runtest_setup(item):
    check_backend_support(item)


def pytest_addoption(parser):
    parser.addoption(
        "--backend", action="store", metavar="NAME",
        help="Only run tests matching the backend NAME."
    )