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129 lines
3 KiB
Python
129 lines
3 KiB
Python
#! /usr/bin/env python
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"""Test script for the anydbm module
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based on testdumbdbm.py
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"""
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import os
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import unittest
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import anydbm
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import glob
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from test import test_support
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_fname = test_support.TESTFN
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_all_modules = []
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for _name in anydbm._names:
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try:
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_module = __import__(_name)
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except ImportError:
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continue
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_all_modules.append(_module)
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#
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# Iterates over every database module supported by anydbm
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# currently available, setting anydbm to use each in turn,
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# and yielding that module
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#
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def dbm_iterator():
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old_default = anydbm._defaultmod
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for module in _all_modules:
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anydbm._defaultmod = module
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yield module
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anydbm._defaultmod = old_default
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#
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# Clean up all scratch databases we might have created
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# during testing
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#
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def delete_files():
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# we don't know the precise name the underlying database uses
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# so we use glob to locate all names
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for f in glob.glob(_fname + "*"):
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try:
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os.unlink(f)
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except OSError:
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pass
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class AnyDBMTestCase(unittest.TestCase):
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_dict = {'0': b'',
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'a': b'Python:',
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'b': b'Programming',
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'c': b'the',
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'd': b'way',
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'f': b'Guido',
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'g': b'intended',
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}
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def __init__(self, *args):
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unittest.TestCase.__init__(self, *args)
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def test_anydbm_creation(self):
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f = anydbm.open(_fname, 'c')
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self.assertEqual(list(f.keys()), [])
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for key in self._dict:
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f[key.encode("ascii")] = self._dict[key]
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self.read_helper(f)
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f.close()
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def test_anydbm_modification(self):
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self.init_db()
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f = anydbm.open(_fname, 'c')
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self._dict['g'] = f[b'g'] = b"indented"
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self.read_helper(f)
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f.close()
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def test_anydbm_read(self):
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self.init_db()
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f = anydbm.open(_fname, 'r')
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self.read_helper(f)
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f.close()
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def test_anydbm_keys(self):
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self.init_db()
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f = anydbm.open(_fname, 'r')
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keys = self.keys_helper(f)
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f.close()
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def test_anydbm_access(self):
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self.init_db()
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f = anydbm.open(_fname, 'r')
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key = "a".encode("ascii")
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assert(key in f)
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assert(f[key] == b"Python:")
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f.close()
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def read_helper(self, f):
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keys = self.keys_helper(f)
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for key in self._dict:
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self.assertEqual(self._dict[key], f[key.encode("ascii")])
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def init_db(self):
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f = anydbm.open(_fname, 'n')
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for k in self._dict:
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f[k.encode("ascii")] = self._dict[k]
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f.close()
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def keys_helper(self, f):
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keys = sorted(k.decode("ascii") for k in f.keys())
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dkeys = sorted(self._dict.keys())
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self.assertEqual(keys, dkeys)
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return keys
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def tearDown(self):
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delete_files()
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def setUp(self):
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delete_files()
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def test_main():
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try:
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for module in dbm_iterator():
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test_support.run_unittest(AnyDBMTestCase)
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finally:
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delete_files()
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if __name__ == "__main__":
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test_main()
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