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# Copyright 2019 Google LLC
#
# 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.
"""Test the functionality of the RepoManager class."""
import contextlib
import os
import tempfile
import unittest
from unittest import mock
import repo_manager
import utils
# pylint: disable=protected-access
OSS_FUZZ_REPO_URL = 'https://github.com/google/oss-fuzz'
@contextlib.contextmanager
def get_oss_fuzz_repo():
"""Clones a temporary copy of the OSS-Fuzz repo. Returns the path to the
repo."""
repo_name = 'oss-fuzz'
with tempfile.TemporaryDirectory() as tmp_dir:
repo_manager._clone(OSS_FUZZ_REPO_URL, tmp_dir, repo_name)
yield os.path.join(tmp_dir, repo_name)
class CloneTest(unittest.TestCase):
"""Tests the _clone function."""
@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
'INTEGRATION_TESTS=1 not set')
def test_clone_valid_repo_integration(self):
"""Integration test that tests the correct location of the git repo."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
git_path = os.path.join(oss_fuzz_repo, '.git')
self.assertTrue(os.path.isdir(git_path))
def test_clone_invalid_repo(self):
"""Tests that cloning an invalid repo will fail."""
with tempfile.TemporaryDirectory() as tmp_dir:
with self.assertRaises(RuntimeError):
repo_manager._clone('https://github.com/oss-fuzz-not-real.git', tmp_dir,
'oss-fuzz')
@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
'INTEGRATION_TESTS=1 not set')
class RepoManagerCheckoutTest(unittest.TestCase):
"""Tests the checkout functionality of RepoManager."""
def test_checkout_valid_commit(self):
"""Tests that the git checkout command works."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
commit_to_test = '04ea24ee15bbe46a19e5da6c5f022a2ffdfbdb3b'
repo_man.checkout_commit(commit_to_test)
self.assertEqual(commit_to_test, repo_man.get_current_commit())
def test_checkout_invalid_commit(self):
"""Tests that the git checkout invalid commit fails."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
with self.assertRaises(ValueError):
repo_man.checkout_commit(' ')
with self.assertRaises(ValueError):
repo_man.checkout_commit('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa')
with self.assertRaises(ValueError):
repo_man.checkout_commit('not-a-valid-commit')
@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
'INTEGRATION_TESTS=1 not set')
class RepoManagerGetCommitListTest(unittest.TestCase):
"""Tests the get_commit_list method of RepoManager."""
def test_get_valid_commit_list(self):
"""Tests an accurate commit list can be retrieved from the repo manager."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
old_commit = '04ea24ee15bbe46a19e5da6c5f022a2ffdfbdb3b'
new_commit = 'fa662173bfeb3ba08d2e84cefc363be11e6c8463'
commit_list = [
'fa662173bfeb3ba08d2e84cefc363be11e6c8463',
'17035317a44fa89d22fe6846d868d4bf57def78b',
'97dee00a3c4ce95071c3e061592f5fd577dea886',
'04ea24ee15bbe46a19e5da6c5f022a2ffdfbdb3b'
]
result_list = repo_man.get_commit_list(new_commit, old_commit)
self.assertListEqual(commit_list, result_list)
def test_get_invalid_commit_list(self):
"""Tests that the proper errors are thrown when invalid commits are
passed to get_commit_list."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
old_commit = '04ea24ee15bbe46a19e5da6c5f022a2ffdfbdb3b'
new_commit = 'fa662173bfeb3ba08d2e84cefc363be11e6c8463'
with self.assertRaises(ValueError):
repo_man.get_commit_list('fakecommit', new_commit)
with self.assertRaises(ValueError):
repo_man.get_commit_list(new_commit, 'fakecommit')
with self.assertRaises(RuntimeError):
repo_man.get_commit_list(old_commit, new_commit) # pylint: disable=arguments-out-of-order
@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
'INTEGRATION_TESTS=1 not set')
class GitDiffTest(unittest.TestCase):
"""Tests get_git_diff."""
def test_diff_exists(self):
"""Tests that a real diff is returned when a valid repo manager exists."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
with mock.patch.object(utils,
'execute',
return_value=('test.py\ndiff.py', None, 0)):
diff = repo_man.get_git_diff()
self.assertCountEqual(diff, ['test.py', 'diff.py'])
def test_diff_empty(self):
"""Tests that None is returned when there is no difference between repos."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
with mock.patch.object(utils, 'execute', return_value=('', None, 0)):
diff = repo_man.get_git_diff()
self.assertIsNone(diff)
def test_error_on_command(self):
"""Tests that None is returned when the command errors out."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
with mock.patch.object(utils,
'execute',
return_value=('', 'Test error.', 1)):
diff = repo_man.get_git_diff()
self.assertIsNone(diff)
def test_diff_no_change(self):
"""Tests that None is returned when there is no difference between repos."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
diff = repo_man.get_git_diff()
self.assertIsNone(diff)
@unittest.skipIf(not os.getenv('INTEGRATION_TESTS'),
'INTEGRATION_TESTS=1 not set')
class CheckoutPrIntegrationTest(unittest.TestCase):
"""Does Integration tests on the checkout_pr method of RepoManager."""
def test_pull_request_exists(self):
"""Tests that a diff is returned when a valid PR is checked out."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
repo_man.checkout_pr('refs/pull/3415/merge')
diff = repo_man.get_git_diff()
self.assertCountEqual(diff, ['README.md'])
def test_checkout_invalid_pull_request(self):
"""Tests that the git checkout invalid pull request fails."""
with get_oss_fuzz_repo() as oss_fuzz_repo:
repo_man = repo_manager.RepoManager(oss_fuzz_repo)
with self.assertRaises(RuntimeError):
repo_man.checkout_pr(' ')
with self.assertRaises(RuntimeError):
repo_man.checkout_pr('aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa')
with self.assertRaises(RuntimeError):
repo_man.checkout_pr('not/a/valid/pr')
if __name__ == '__main__':
unittest.main()
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