test_fs.py 文件源码

def test_atomic_write_preserves_ownership_before_moving_into_place(self):
        atomic_file = self.make_file('atomic')

        self.patch(fs_module, 'isfile').return_value = True
        self.patch(fs_module, 'chown')
        self.patch(fs_module, 'rename')
        self.patch(fs_module, 'stat')

        ret_stat = fs_module.stat.return_value
        ret_stat.st_uid = sentinel.uid
        ret_stat.st_gid = sentinel.gid
        ret_stat.st_mode = stat.S_IFREG

        atomic_write(factory.make_bytes(), atomic_file)

        self.assertThat(fs_module.stat, MockCalledOnceWith(atomic_file))
        self.assertThat(fs_module.chown, MockCalledOnceWith(
            ANY, sentinel.uid, sentinel.gid))