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# Copyright 2023 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
from unittest.mock import patch
import download_fuzz_corpora
import tempfile
import unittest
import sys
import os
import shutil
import argparse
import subprocess
class DownloadFuzzCorporaTest(unittest.TestCase):
@classmethod
def setUpClass(cls):
if sys.platform != 'linux':
return
cls.fake_binary_dir = tempfile.mkdtemp()
for binary in ["fake_1_fuzzer", "fake_2_fuzzer", "some_other_binary"]:
f = open(os.path.join(cls.fake_binary_dir, binary), "x")
f.write(binary)
f.close()
cls.fake_download_dir = tempfile.mkdtemp()
cls.chromium_src_dir = os.path.join(
os.path.abspath(os.path.dirname(__file__)), "..", "..")
@classmethod
def tearDownClass(cls):
if sys.platform != 'linux':
return
shutil.rmtree(cls.fake_binary_dir, ignore_errors=True)
def test_wrong_arguments(self):
if sys.platform != 'linux':
return
cmd = [
'python3', 'tools/code_coverage/download_fuzz_corpora.py',
'--download-dir', self.__class__.fake_download_dir
]
with self.assertRaises(subprocess.CalledProcessError) as e:
subprocess.check_call(cmd, cwd=self.__class__.chromium_src_dir)
assert ("returned non-zero exit status 2" in str(e.exception))
cmd = [
'python3', 'tools/code_coverage/download_fuzz_corpora.py',
'--build-dir', self.__class__.fake_binary_dir
]
with self.assertRaises(subprocess.CalledProcessError) as e:
subprocess.check_call(cmd, cwd=self.__class__.chromium_src_dir)
assert ("returned non-zero exit status 2" in str(e.exception))
def test_download_fuzz_corpora(self):
with patch('download_fuzz_corpora._ParseCommandArguments'
) as _ParseCommandArgumentsMock:
with patch('download_fuzz_corpora._gsutil') as _gsutil_mock:
_gsutil_mock.return_value = None
_ParseCommandArgumentsMock.return_value = argparse.Namespace(
download_dir=self.__class__.fake_download_dir,
build_dir=self.__class__.fake_binary_dir,
corpora_type='libfuzzer',
arch='x64')
download_fuzz_corpora.Main()
self.assertTrue(
os.path.isdir(
os.path.join(self.__class__.fake_download_dir,
"fake_1_fuzzer")))
self.assertTrue(
os.path.isdir(
os.path.join(self.__class__.fake_download_dir,
"fake_2_fuzzer")))
self.assertFalse(
os.path.isdir(
os.path.join(self.__class__.fake_binary_dir,
"some_other_binary")))
if __name__ == '__main__':
unittest.main()
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