/usr/lib/python3.5/test/test_dbm.py is in libpython3.5-testsuite 3.5.1-10.
This file is owned by root:root, with mode 0o644.
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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 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 | """Test script for the dbm.open function based on testdumbdbm.py"""
import os
import unittest
import glob
import test.support
# Skip tests if dbm module doesn't exist.
dbm = test.support.import_module('dbm')
try:
from dbm import ndbm
except ImportError:
ndbm = None
_fname = test.support.TESTFN
#
# Iterates over every database module supported by dbm currently available,
# setting dbm to use each in turn, and yielding that module
#
def dbm_iterator():
for name in dbm._names:
try:
mod = __import__(name, fromlist=['open'])
except ImportError:
continue
dbm._modules[name] = mod
yield mod
#
# Clean up all scratch databases we might have created during testing
#
def delete_files():
# we don't know the precise name the underlying database uses
# so we use glob to locate all names
for f in glob.glob(_fname + "*"):
test.support.unlink(f)
class AnyDBMTestCase:
_dict = {'0': b'',
'a': b'Python:',
'b': b'Programming',
'c': b'the',
'd': b'way',
'f': b'Guido',
'g': b'intended',
}
def init_db(self):
f = dbm.open(_fname, 'n')
for k in self._dict:
f[k.encode("ascii")] = self._dict[k]
f.close()
def keys_helper(self, f):
keys = sorted(k.decode("ascii") for k in f.keys())
dkeys = sorted(self._dict.keys())
self.assertEqual(keys, dkeys)
return keys
def test_error(self):
self.assertTrue(issubclass(self.module.error, OSError))
def test_anydbm_not_existing(self):
self.assertRaises(dbm.error, dbm.open, _fname)
def test_anydbm_creation(self):
f = dbm.open(_fname, 'c')
self.assertEqual(list(f.keys()), [])
for key in self._dict:
f[key.encode("ascii")] = self._dict[key]
self.read_helper(f)
f.close()
def test_anydbm_creation_n_file_exists_with_invalid_contents(self):
# create an empty file
test.support.create_empty_file(_fname)
f = dbm.open(_fname, 'n')
self.addCleanup(f.close)
self.assertEqual(len(f), 0)
def test_anydbm_modification(self):
self.init_db()
f = dbm.open(_fname, 'c')
self._dict['g'] = f[b'g'] = b"indented"
self.read_helper(f)
f.close()
def test_anydbm_read(self):
self.init_db()
f = dbm.open(_fname, 'r')
self.read_helper(f)
f.close()
def test_anydbm_keys(self):
self.init_db()
f = dbm.open(_fname, 'r')
keys = self.keys_helper(f)
f.close()
def test_anydbm_access(self):
self.init_db()
f = dbm.open(_fname, 'r')
key = "a".encode("ascii")
self.assertIn(key, f)
assert(f[key] == b"Python:")
f.close()
def read_helper(self, f):
keys = self.keys_helper(f)
for key in self._dict:
self.assertEqual(self._dict[key], f[key.encode("ascii")])
def tearDown(self):
delete_files()
def setUp(self):
dbm._defaultmod = self.module
delete_files()
class WhichDBTestCase(unittest.TestCase):
def test_whichdb(self):
for module in dbm_iterator():
# Check whether whichdb correctly guesses module name
# for databases opened with "module" module.
# Try with empty files first
name = module.__name__
if name == 'dbm.dumb':
continue # whichdb can't support dbm.dumb
delete_files()
f = module.open(_fname, 'c')
f.close()
self.assertEqual(name, self.dbm.whichdb(_fname))
# Now add a key
f = module.open(_fname, 'w')
f[b"1"] = b"1"
# and test that we can find it
self.assertIn(b"1", f)
# and read it
self.assertTrue(f[b"1"] == b"1")
f.close()
self.assertEqual(name, self.dbm.whichdb(_fname))
@unittest.skipUnless(ndbm, reason='Test requires ndbm')
def test_whichdb_ndbm(self):
# Issue 17198: check that ndbm which is referenced in whichdb is defined
db_file = '{}_ndbm.db'.format(_fname)
with open(db_file, 'w'):
self.addCleanup(test.support.unlink, db_file)
self.assertIsNone(self.dbm.whichdb(db_file[:-3]))
def tearDown(self):
delete_files()
def setUp(self):
delete_files()
self.filename = test.support.TESTFN
self.d = dbm.open(self.filename, 'c')
self.d.close()
self.dbm = test.support.import_fresh_module('dbm')
def test_keys(self):
self.d = dbm.open(self.filename, 'c')
self.assertEqual(self.d.keys(), [])
a = [(b'a', b'b'), (b'12345678910', b'019237410982340912840198242')]
for k, v in a:
self.d[k] = v
self.assertEqual(sorted(self.d.keys()), sorted(k for (k, v) in a))
for k, v in a:
self.assertIn(k, self.d)
self.assertEqual(self.d[k], v)
self.assertNotIn(b'xxx', self.d)
self.assertRaises(KeyError, lambda: self.d[b'xxx'])
self.d.close()
def load_tests(loader, tests, pattern):
classes = []
for mod in dbm_iterator():
classes.append(type("TestCase-" + mod.__name__,
(AnyDBMTestCase, unittest.TestCase),
{'module': mod}))
suites = [unittest.makeSuite(c) for c in classes]
tests.addTests(suites)
return tests
if __name__ == "__main__":
unittest.main()
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