test_dumbdbm.py 文件源码

def test_readonly_files(self):
        dir = _fname
        os.mkdir(dir)
        try:
            fname = os.path.join(dir, 'db')
            f = dumbdbm.open(fname, 'n')
            self.assertEqual(list(f.keys()), [])
            for key in self._dict:
                f[key] = self._dict[key]
            f.close()
            os.chmod(fname + ".dir", stat.S_IRUSR)
            os.chmod(fname + ".dat", stat.S_IRUSR)
            os.chmod(dir, stat.S_IRUSR|stat.S_IXUSR)
            f = dumbdbm.open(fname, 'r')
            self.assertEqual(sorted(f.keys()), sorted(self._dict))
            f.close()  # don't write
        finally:
            test_support.rmtree(dir)