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# Copyright (C) 2019 The Android Open Source Project
#
# 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.
"""Unittests for the ssh.py module."""
import multiprocessing
import subprocess
from typing import Tuple
from unittest import mock
import pytest
import ssh
@pytest.fixture(autouse=True)
def clear_ssh_version_cache() -> None:
"""Clear the ssh version cache before each test."""
ssh.version.cache_clear()
@pytest.mark.parametrize(
"input_str, expected",
(
("Unknown\n", ()),
("OpenSSH_1.0\n", (1, 0)),
(
"OpenSSH_6.6.1p1 Ubuntu-2ubuntu2.13, OpenSSL 1.0.1f 6 Jan 2014\n",
(6, 6, 1),
),
(
"OpenSSH_7.6p1 Ubuntu-4ubuntu0.3, OpenSSL 1.0.2n 7 Dec 2017\n",
(7, 6),
),
("OpenSSH_9.0p1, LibreSSL 3.3.6\n", (9, 0)),
),
)
def test_parse_ssh_version(input_str: str, expected: Tuple[int, ...]) -> None:
"""Check _parse_ssh_version() handling."""
assert ssh._parse_ssh_version(input_str) == expected
def test_version() -> None:
"""Check version() handling."""
with mock.patch("ssh._run_ssh_version", return_value="OpenSSH_1.2\n"):
assert ssh.version() == (1, 2)
def test_context_manager_empty() -> None:
"""Verify context manager with no clients works correctly."""
with multiprocessing.Manager() as manager:
with ssh.ProxyManager(manager):
pass
def test_context_manager_child_cleanup() -> None:
"""Verify orphaned clients & masters get cleaned up."""
with multiprocessing.Manager() as manager:
with mock.patch("ssh.version", return_value=(1, 2)):
with ssh.ProxyManager(manager) as ssh_proxy:
client = subprocess.Popen(["sleep", "964853320"])
ssh_proxy.add_client(client)
master = subprocess.Popen(["sleep", "964853321"])
ssh_proxy.add_master(master)
# If the process still exists, these will throw timeout errors.
client.wait(0)
master.wait(0)
def test_ssh_sock(monkeypatch: pytest.MonkeyPatch) -> None:
"""Check sock() function."""
with multiprocessing.Manager() as manager:
proxy = ssh.ProxyManager(manager)
monkeypatch.setattr(
"tempfile.mkdtemp", lambda *args, **kwargs: "/tmp/foo"
)
# Old ssh version uses port.
with mock.patch("ssh.version", return_value=(6, 6)):
with proxy as ssh_proxy:
assert ssh_proxy.sock().endswith("%p")
proxy._sock_path = None
# New ssh version uses hash.
with mock.patch("ssh.version", return_value=(6, 7)):
with proxy as ssh_proxy:
assert ssh_proxy.sock().endswith("%C")
proxy._sock_path = None
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