1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
import dbm.gnu as gdbm
import unittest
import os
from test.support import verbose, TESTFN, run_unittest, unlink
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'
self.g[b'bytes'] = b'data'
key_set = set(self.g.keys())
self.assertEqual(key_set, set([b'a', b'bytes', b'12345678910']))
self.assert_(b'a' in self.g)
self.assertEqual(self.g[b'bytes'], b'data')
key = self.g.firstkey()
while key:
self.assert_(key in 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.assert_(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.assert_(size1 > size2 >= size0)
def test_main():
run_unittest(TestGdbm)
if __name__ == '__main__':
test_main()
|
