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# Copyright (C) 2021 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 platform_utils.py module."""
from pathlib import Path
import pytest
import platform_utils
def test_remove_missing_ok(tmp_path: Path) -> None:
"""Check missing_ok handling."""
path = tmp_path / "test"
# Should not fail.
platform_utils.remove(path, missing_ok=True)
# Should fail.
with pytest.raises(OSError):
platform_utils.remove(path)
with pytest.raises(OSError):
platform_utils.remove(path, missing_ok=False)
# Should not fail if it exists.
path.touch()
platform_utils.remove(path, missing_ok=True)
assert not path.exists()
path.touch()
platform_utils.remove(path)
assert not path.exists()
path.touch()
platform_utils.remove(path, missing_ok=False)
assert not path.exists()
def test_removedirs_nonexistent(tmp_path: Path) -> None:
"""removedirs should silently succeed on nonexistent paths."""
platform_utils.removedirs(tmp_path / "does-not-exist")
def test_removedirs_symlink(tmp_path: Path) -> None:
"""removedirs should remove a symlink."""
link = tmp_path / "link"
link.symlink_to("target")
platform_utils.removedirs(link)
assert not link.exists()
def test_removedirs_empty_dir(tmp_path: Path) -> None:
"""removedirs should remove an empty directory."""
d = tmp_path / "empty"
d.mkdir()
platform_utils.removedirs(d)
assert not d.exists()
def test_removedirs_nested_empty_dirs(tmp_path: Path) -> None:
"""removedirs should remove nested empty directories."""
d = tmp_path / "a" / "b" / "c"
d.mkdir(parents=True)
platform_utils.removedirs(tmp_path / "a")
assert not (tmp_path / "a").exists()
def test_removedirs_symlinks_inside_dir(tmp_path: Path) -> None:
"""removedirs should remove symlinks inside a directory."""
d = tmp_path / "dir"
d.mkdir()
(d / "link1").symlink_to("target1")
(d / "link2").symlink_to("target2")
platform_utils.removedirs(d)
assert not d.exists()
def test_removedirs_preserves_user_files(tmp_path: Path) -> None:
"""removedirs should not delete regular files or their parent dirs."""
d = tmp_path / "dir"
d.mkdir()
(d / "link").symlink_to("target")
(d / "user-file.txt").write_text("keep me")
platform_utils.removedirs(d)
assert d.exists()
assert not (d / "link").exists()
assert (d / "user-file.txt").read_text() == "keep me"
def test_removedirs_deep_nested_with_symlinks(tmp_path: Path) -> None:
"""removedirs should handle deep nesting: sub/dir/target."""
d = tmp_path / "sub" / "dir"
d.mkdir(parents=True)
(d / "link").symlink_to("target")
platform_utils.removedirs(tmp_path / "sub")
assert not (tmp_path / "sub").exists()
def test_removedirs_regular_file_noop(tmp_path: Path) -> None:
"""removedirs should not delete a regular file."""
f = tmp_path / "file.txt"
f.write_text("data")
platform_utils.removedirs(f)
assert f.exists()
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