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from __future__ import annotations
import os
import subprocess
import pytest
from pre_commit_hooks.destroyed_symlinks import find_destroyed_symlinks
from pre_commit_hooks.destroyed_symlinks import main
from testing.util import git_commit
TEST_SYMLINK = 'test_symlink'
TEST_SYMLINK_TARGET = '/doesnt/really/matters'
TEST_FILE = 'test_file'
TEST_FILE_RENAMED = f'{TEST_FILE}_renamed'
@pytest.fixture
def repo_with_destroyed_symlink(tmpdir):
source_repo = tmpdir.join('src')
os.makedirs(source_repo, exist_ok=True)
test_repo = tmpdir.join('test')
with source_repo.as_cwd():
subprocess.check_call(('git', 'init'))
os.symlink(TEST_SYMLINK_TARGET, TEST_SYMLINK)
with open(TEST_FILE, 'w') as f:
print('some random content', file=f)
subprocess.check_call(('git', 'add', '.'))
git_commit('-m', 'initial')
assert b'120000 ' in subprocess.check_output(
('git', 'cat-file', '-p', 'HEAD^{tree}'),
)
subprocess.check_call(
('git', '-c', 'core.symlinks=false', 'clone', source_repo, test_repo),
)
with test_repo.as_cwd():
subprocess.check_call(
('git', 'config', '--local', 'core.symlinks', 'true'),
)
subprocess.check_call(('git', 'mv', TEST_FILE, TEST_FILE_RENAMED))
assert not os.path.islink(test_repo.join(TEST_SYMLINK))
yield test_repo
def test_find_destroyed_symlinks(repo_with_destroyed_symlink):
with repo_with_destroyed_symlink.as_cwd():
assert find_destroyed_symlinks([]) == []
assert main([]) == 0
subprocess.check_call(('git', 'add', TEST_SYMLINK))
assert find_destroyed_symlinks([TEST_SYMLINK]) == [TEST_SYMLINK]
assert find_destroyed_symlinks([]) == []
assert main([]) == 0
assert find_destroyed_symlinks([TEST_FILE_RENAMED, TEST_FILE]) == []
ALL_STAGED = [TEST_SYMLINK, TEST_FILE_RENAMED]
assert find_destroyed_symlinks(ALL_STAGED) == [TEST_SYMLINK]
assert main(ALL_STAGED) != 0
with open(TEST_SYMLINK, 'a') as f:
print(file=f) # add trailing newline
subprocess.check_call(['git', 'add', TEST_SYMLINK])
assert find_destroyed_symlinks(ALL_STAGED) == [TEST_SYMLINK]
assert main(ALL_STAGED) != 0
with open(TEST_SYMLINK, 'w') as f:
print('0' * len(TEST_SYMLINK_TARGET), file=f)
subprocess.check_call(('git', 'add', TEST_SYMLINK))
assert find_destroyed_symlinks(ALL_STAGED) == []
assert main(ALL_STAGED) == 0
with open(TEST_SYMLINK, 'w') as f:
print('0' * (len(TEST_SYMLINK_TARGET) + 3), file=f)
subprocess.check_call(('git', 'add', TEST_SYMLINK))
assert find_destroyed_symlinks(ALL_STAGED) == []
assert main(ALL_STAGED) == 0
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