diff options
Diffstat (limited to 'Lib/test/test_dbm_dumb.py')
| -rw-r--r-- | Lib/test/test_dbm_dumb.py | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/Lib/test/test_dbm_dumb.py b/Lib/test/test_dbm_dumb.py index 235ab11b61..df531d64e4 100644 --- a/Lib/test/test_dbm_dumb.py +++ b/Lib/test/test_dbm_dumb.py @@ -7,6 +7,7 @@ import operator import os import stat import unittest +import warnings import dbm.dumb as dumbdbm from test import support from functools import partial @@ -79,6 +80,12 @@ class DumbDBMTestCase(unittest.TestCase): self.init_db() f = dumbdbm.open(_fname, 'r') self.read_helper(f) + with self.assertWarnsRegex(DeprecationWarning, + 'The database is opened for reading only'): + f[b'g'] = b'x' + with self.assertWarnsRegex(DeprecationWarning, + 'The database is opened for reading only'): + del f[b'a'] f.close() def test_dumbdbm_keys(self): @@ -149,7 +156,7 @@ class DumbDBMTestCase(unittest.TestCase): self.assertEqual(self._dict[key], f[key]) def init_db(self): - f = dumbdbm.open(_fname, 'w') + f = dumbdbm.open(_fname, 'n') for k in self._dict: f[k] = self._dict[k] f.close() @@ -235,6 +242,24 @@ class DumbDBMTestCase(unittest.TestCase): pass self.assertEqual(stdout.getvalue(), '') + def test_warn_on_ignored_flags(self): + for value in ('r', 'w'): + _delete_files() + with self.assertWarnsRegex(DeprecationWarning, + "The database file is missing, the " + "semantics of the 'c' flag will " + "be used."): + f = dumbdbm.open(_fname, value) + f.close() + + def test_invalid_flag(self): + for flag in ('x', 'rf', None): + with self.assertWarnsRegex(DeprecationWarning, + "Flag must be one of " + "'r', 'w', 'c', or 'n'"): + f = dumbdbm.open(_fname, flag) + f.close() + @unittest.skipUnless(hasattr(os, 'chmod'), 'test needs os.chmod()') def test_readonly_files(self): with support.temp_dir() as dir: |