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#! /usr/bin/env python
"""Test script for the dumbdbm module
Original by Roger E. Masse
"""
import os
import unittest
import dumbdbm
from test import test_support
_fname = test_support.TESTFN
def _delete_files():
for ext in [".dir", ".dat", ".bak"]:
try:
os.unlink(_fname + ext)
except OSError:
pass
class DumbDBMTestCase(unittest.TestCase):
_dict = {'0': '',
'a': 'Python:',
'b': 'Programming',
'c': 'the',
'd': 'way',
'f': 'Guido',
'g': 'intended'
}
def __init__(self, *args):
unittest.TestCase.__init__(self, *args)
def test_dumbdbm_creation(self):
f = dumbdbm.open(_fname, 'c')
self.assertEqual(f.keys(), [])
for key in self._dict:
f[key] = self._dict[key]
self.read_helper(f)
f.close()
def test_dumbdbm_modification(self):
self.init_db()
f = dumbdbm.open(_fname, 'w')
self._dict['g'] = f['g'] = "indented"
self.read_helper(f)
f.close()
def test_dumbdbm_read(self):
self.init_db()
f = dumbdbm.open(_fname, 'r')
self.read_helper(f)
f.close()
def test_dumbdbm_keys(self):
self.init_db()
f = dumbdbm.open(_fname)
keys = self.keys_helper(f)
f.close()
def test_write_write_read(self):
# test for bug #482460
f = dumbdbm.open(_fname)
f['1'] = 'hello'
f['1'] = 'hello2'
f.close()
f = dumbdbm.open(_fname)
self.assertEqual(f['1'], 'hello2')
f.close()
def read_helper(self, f):
keys = self.keys_helper(f)
for key in self._dict:
self.assertEqual(self._dict[key], f[key])
def init_db(self):
f = dumbdbm.open(_fname, 'w')
for k in self._dict:
f[k] = self._dict[k]
f.close()
def keys_helper(self, f):
keys = f.keys()
keys.sort()
dkeys = self._dict.keys()
dkeys.sort()
self.assertEqual(keys, dkeys)
return keys
def tearDown(self):
_delete_files()
def setUp(self):
_delete_files()
def test_main():
try:
test_support.run_unittest(DumbDBMTestCase)
finally:
_delete_files()
if __name__ == "__main__":
test_main()
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