python-tuf/tests/test_examples.py
Martin Vrachev d5d0b94f62 Add logging configuration in tests/test_examples
Logging configuration is part from each test file begging from commit
03b15fb4be
We should that as well for tests/test_examples.py

Signed-off-by: Martin Vrachev <mvrachev@vmware.com>
2021-12-09 16:44:25 +02:00

93 lines
2.8 KiB
Python

#!/usr/bin/env python
# Copyright 2020, New York University and the TUF contributors
# SPDX-License-Identifier: MIT OR Apache-2.0
""" Unit tests for 'examples' scripts.
"""
import glob
import os
import shutil
import sys
import tempfile
import unittest
from pathlib import Path
from typing import ClassVar, List
from tests import utils
class TestRepoExamples(unittest.TestCase):
"""Unit test class for 'repo_example' scripts.
Provides a '_run_example_script' method to run (exec) a script located in
the 'repo_example' directory.
"""
repo_examples_dir: ClassVar[Path]
@classmethod
def setUpClass(cls) -> None:
"""Locate and cache 'repo_example' dir."""
base = Path(__file__).resolve().parents[1]
cls.repo_examples_dir = base / "examples" / "repo_example"
def setUp(self) -> None:
"""Create and change into test dir.
NOTE: Test scripts are expected to create dirs/files in new CWD."""
self.original_cwd = os.getcwd()
self.base_test_dir = os.path.realpath(tempfile.mkdtemp())
os.chdir(self.base_test_dir)
def tearDown(self) -> None:
"""Change back to original dir and remove test dir, which may contain
dirs/files the test created at test-time CWD."""
os.chdir(self.original_cwd)
shutil.rmtree(self.base_test_dir)
def _run_script_and_assert_files(
self, script_name: str, filenames_created: List[str]
) -> None:
"""Run script in 'repo_example' dir and assert that it created the
files corresponding to the passed filenames inside a 'tmp*' test dir at
CWD."""
script_path = str(self.repo_examples_dir / script_name)
with open(script_path, "rb") as f:
# pylint: disable=exec-used
exec(
compile(f.read(), script_path, "exec"),
{"__file__": script_path},
)
test_dirs = glob.glob("tmp*")
self.assertTrue(
len(test_dirs) == 1, f"expected 1 'tmp*' test dir, got {test_dirs}"
)
test_dir = test_dirs.pop()
for name in filenames_created:
metadata_path = Path(test_dir) / f"{name}"
self.assertTrue(
metadata_path.exists(), f"missing '{metadata_path}' file"
)
def test_basic_repo(self) -> None:
"""Run 'basic_repo.py' and assert creation of metadata files."""
self._run_script_and_assert_files(
"basic_repo.py",
[
"1.python-scripts.json",
"1.root.json",
"1.snapshot.json",
"1.targets.json",
"2.root.json",
"2.snapshot.json",
"2.targets.json",
"timestamp.json",
],
)
if __name__ == "__main__":
utils.configure_test_logging(sys.argv)
unittest.main()