diff options
Diffstat (limited to 'src/python/stdlib/test/test_gdbm.py')
| -rw-r--r-- | src/python/stdlib/test/test_gdbm.py | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/python/stdlib/test/test_gdbm.py b/src/python/stdlib/test/test_gdbm.py new file mode 100644 index 0000000..f4bbc38 --- /dev/null +++ b/src/python/stdlib/test/test_gdbm.py @@ -0,0 +1,82 @@ +import unittest +import os +from test.test_support import TESTFN, run_unittest, unlink, import_module +gdbm = import_module('gdbm') + + +filename = TESTFN + +class TestGdbm(unittest.TestCase): + + def setUp(self): + self.g = None + + def tearDown(self): + if self.g is not None: + self.g.close() + unlink(filename) + + def test_key_methods(self): + self.g = gdbm.open(filename, 'c') + self.assertEqual(self.g.keys(), []) + self.g['a'] = 'b' + self.g['12345678910'] = '019237410982340912840198242' + key_set = set(self.g.keys()) + self.assertEqual(key_set, frozenset(['a', '12345678910'])) + self.assertTrue(self.g.has_key('a')) + key = self.g.firstkey() + while key: + self.assertIn(key, key_set) + key_set.remove(key) + key = self.g.nextkey(key) + self.assertRaises(KeyError, lambda: self.g['xxx']) + + def test_error_conditions(self): + # Try to open a non-existent database. + unlink(filename) + self.assertRaises(gdbm.error, gdbm.open, filename, 'r') + # Try to access a closed database. + self.g = gdbm.open(filename, 'c') + self.g.close() + self.assertRaises(gdbm.error, lambda: self.g['a']) + # try pass an invalid open flag + self.assertRaises(gdbm.error, lambda: gdbm.open(filename, 'rx').close()) + + def test_flags(self): + # Test the flag parameter open() by trying all supported flag modes. + all = set(gdbm.open_flags) + # Test standard flags (presumably "crwn"). + modes = all - set('fsu') + for mode in modes: + self.g = gdbm.open(filename, mode) + self.g.close() + + # Test additional flags (presumably "fsu"). + flags = all - set('crwn') + for mode in modes: + for flag in flags: + self.g = gdbm.open(filename, mode + flag) + self.g.close() + + def test_reorganize(self): + self.g = gdbm.open(filename, 'c') + size0 = os.path.getsize(filename) + + self.g['x'] = 'x' * 10000 + size1 = os.path.getsize(filename) + self.assertTrue(size0 < size1) + + del self.g['x'] + # 'size' is supposed to be the same even after deleting an entry. + self.assertEqual(os.path.getsize(filename), size1) + + self.g.reorganize() + size2 = os.path.getsize(filename) + self.assertTrue(size1 > size2 >= size0) + + +def test_main(): + run_unittest(TestGdbm) + +if __name__ == '__main__': + test_main() |
