Lib/test/test_dbm.py

   1 from test import test_support
   2 import unittest
   3 dbm = test_support.import_module('dbm')
   4
   5 class DbmTestCase(unittest.TestCase):
   6
   7     def setUp(self):
   8         self.filename = test_support.TESTFN
   9         self.d = dbm.open(self.filename, 'c')
  10         self.d.close()
  11
  12     def tearDown(self):
  13         for suffix in ['', '.pag', '.dir', '.db']:
  14             test_support.unlink(self.filename + suffix)
  15
  16     def test_keys(self):
  17         self.d = dbm.open(self.filename, 'c')
  18         self.assertEqual(self.d.keys(), [])
  19         a = [('a', 'b'), ('12345678910', '019237410982340912840198242')]
  20         for k, v in a:
  21             self.d[k] = v
  22         self.assertEqual(sorted(self.d.keys()), sorted(k for (k, v) in a))
  23         for k, v in a:
  24             self.assertIn(k, self.d)
  25             self.assertEqual(self.d[k], v)
  26         self.assertNotIn('xxx', self.d)
  27         self.assertRaises(KeyError, lambda: self.d['xxx'])
  28         self.d.close()
  29
  30     def test_modes(self):
  31         for mode in ['r', 'rw', 'w', 'n']:
  32             try:
  33                 self.d = dbm.open(self.filename, mode)
  34                 self.d.close()
  35             except dbm.error:
  36                 self.fail()
  37
  38 def test_main():
  39     test_support.run_unittest(DbmTestCase)
  40
  41 if __name__ == '__main__':
  42     test_main()