1 #!/bin/env python3
2 # SPDX-License-Identifier: GPL-2.0
3 # -*- coding: utf-8 -*-
4 #
5 # Copyright (c) 2017 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 # Copyright (c) 2017 Red Hat, Inc.
7
8 import platform
9 import pytest
10 import re
11 import resource
12 import subprocess
13 from .base import HIDTestUdevRule
14 from pathlib import Path
15
16
17 # See the comment in HIDTestUdevRule, this doesn't set up but it will clean
18 # up once the last test exited.
19 @pytest.fixture(autouse=True, scope="session")
20 def udev_rules_session_setup():
21 with HIDTestUdevRule.instance():
22 yield
23
24
25 @pytest.fixture(autouse=True, scope="session")
26 def setup_rlimit():
27 resource.setrlimit(resource.RLIMIT_CORE, (0, 0))
28
29
30 @pytest.fixture(autouse=True, scope="session")
31 def start_udevd(pytestconfig):
32 if pytestconfig.getoption("udevd"):
33 import subprocess
34
35 with subprocess.Popen("/usr/lib/systemd/systemd-udevd") as proc:
36 yield
37 proc.kill()
38 else:
39 yield
40
41
42 def pytest_configure(config):
43 config.addinivalue_line(
44 "markers",
45 "skip_if_uhdev(condition, message): mark test to skip if the condition on the uhdev device is met",
46 )
47
48
49 # Generate the list of modules and modaliases
50 # for the tests that need to be parametrized with those
51 def pytest_generate_tests(metafunc):
52 if "usbVidPid" in metafunc.fixturenames:
53 modules = (
54 Path("/lib/modules/")
55 / platform.uname().release
56 / "kernel"
57 / "drivers"
58 / "hid"
59 )
60
61 modalias_re = re.compile(r"alias:\s+hid:b0003g.*v([0-9a-fA-F]+)p([0-9a-fA-F]+)")
62
63 params = []
64 ids = []
65 for module in modules.glob("*.ko"):
66 p = subprocess.run(
67 ["modinfo", module], capture_output=True, check=True, encoding="utf-8"
68 )
69 for line in p.stdout.split("\n"):
70 m = modalias_re.match(line)
71 if m is not None:
72 vid, pid = m.groups()
73 vid = int(vid, 16)
74 pid = int(pid, 16)
75 params.append([module.name.replace(".ko", ""), vid, pid])
76 ids.append(f"{module.name} {vid:04x}:{pid:04x}")
77 metafunc.parametrize("usbVidPid", params, ids=ids)
78
79
80 def pytest_addoption(parser):
81 parser.addoption("--udevd", action="store_true", default=False)
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