| from test import support |
| support.import_module("dbm.ndbm") #skip if not supported |
| import unittest |
| import dbm.ndbm |
| from dbm.ndbm import error |
| |
| class DbmTestCase(unittest.TestCase): |
| |
| def setUp(self): |
| self.filename = support.TESTFN |
| self.d = dbm.ndbm.open(self.filename, 'c') |
| self.d.close() |
| |
| def tearDown(self): |
| for suffix in ['', '.pag', '.dir', '.db']: |
| support.unlink(self.filename + suffix) |
| |
| def test_keys(self): |
| self.d = dbm.ndbm.open(self.filename, 'c') |
| self.assertTrue(self.d.keys() == []) |
| self.d['a'] = 'b' |
| self.d[b'bytes'] = b'data' |
| self.d['12345678910'] = '019237410982340912840198242' |
| self.d.keys() |
| self.assertIn('a', self.d) |
| self.assertIn(b'a', self.d) |
| self.assertEqual(self.d[b'bytes'], b'data') |
| self.d.close() |
| |
| def test_modes(self): |
| for mode in ['r', 'rw', 'w', 'n']: |
| try: |
| self.d = dbm.ndbm.open(self.filename, mode) |
| self.d.close() |
| except error: |
| self.fail() |
| |
| def test_context_manager(self): |
| with dbm.ndbm.open(self.filename, 'c') as db: |
| db["ndbm context manager"] = "context manager" |
| |
| with dbm.ndbm.open(self.filename, 'r') as db: |
| self.assertEqual(list(db.keys()), [b"ndbm context manager"]) |
| |
| with self.assertRaises(dbm.ndbm.error) as cm: |
| db.keys() |
| self.assertEqual(str(cm.exception), |
| "DBM object has already been closed") |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |