def test_no_cwd(self, root, original):
'When current working directory changes, hash unchanged'
root = root.absolute()
Path('cwd').mkdir()
original_cwd = os.getcwd()
try:
os.chdir('cwd')
current = path_.hash(root).hexdigest()
assert original == current
finally:
# Restore cwd for next tests, this should actually be in a fixture
os.chdir(original_cwd)
def test_file_dir_stat(self, root, original):
'When file/dir stat() changes, hash unchanged'
(root / 'emptydir').chmod(0o404)
(root / 'file').chmod(0o404)
current = path_.hash(root).hexdigest()
assert original == current
def test_no_root_name(self, root, original):
'When root directory renamed, hash unchanged'
root.rename('notroot')
current = path_.hash(Path('notroot')).hexdigest()
assert original == current
def test_no_root_location(self, root, original):
'When root directory moved, hash unchanged'
Path('subdir').mkdir()
root.rename('subdir/root')
current = path_.hash(Path('subdir/root')).hexdigest()
assert original == current
def test_directory_move(self, root, original):
'When directory moves, hash changes'
(root / 'emptydir').rename(root / 'subdir1/emptydir')
current = path_.hash(root).hexdigest()
assert original != current
def test_file_content(self, root, original, contents):
'When file content changes, hash changes'
(root / 'file').write_text(contents * 3)
current = path_.hash(root).hexdigest()
assert original != current
def test_file_move(self, root, original):
'When file moves, hash changes'
(root / 'file').rename(root / 'subdir1/file')
current = path_.hash(root).hexdigest()
assert original != current
def test_file_remove(self, root, original):
'When file removed, hash changes'
(root / 'file').unlink()
current = path_.hash(root).hexdigest()
assert original != current
def test_empty_directory_remove(self, root, original):
'When empty directory removed, hash changes'
(root / 'emptydir').rmdir()
current = path_.hash(root).hexdigest()
assert original != current
def original(self, root):
return path_.hash(root).hexdigest()
def test_digest_file(path, contents):
'When file, digest only its contents'
path.write_text(contents)
hash_ = hashlib.sha512()
hash_.update(contents.encode())
assert path_.hash(path).hexdigest() == hash_.hexdigest()