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"""Test script for the whichdb module
based on test_anydbm.py
"""
import os
import test.test_support
import unittest
import whichdb
import glob
_fname = test.test_support.TESTFN
# Silence Py3k warning
anydbm = test.test_support.import_module('anydbm', deprecated=True)
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 + "*"):
try:
os.unlink(f)
except OSError:
pass
class WhichDBTestCase(unittest.TestCase):
# Actual test methods are added to namespace
# after class definition.
def __init__(self, *args):
unittest.TestCase.__init__(self, *args)
def tearDown(self):
_delete_files()
def setUp(self):
_delete_files()
for name in anydbm._names:
# we define a new test method for each
# candidate database module.
try:
# Silence Py3k warning
mod = test.test_support.import_module(name, deprecated=True)
except unittest.SkipTest:
continue
def test_whichdb_name(self, name=name, mod=mod):
# Check whether whichdb correctly guesses module name
# for databases opened with module mod.
# Try with empty files first
f = mod.open(_fname, 'c')
f.close()
self.assertEqual(name, whichdb.whichdb(_fname))
# Now add a key
f = mod.open(_fname, 'w')
f["1"] = "1"
f.close()
self.assertEqual(name, whichdb.whichdb(_fname))
setattr(WhichDBTestCase,"test_whichdb_%s" % name, test_whichdb_name)
def test_main():
try:
test.test_support.run_unittest(WhichDBTestCase)
finally:
_delete_files()
if __name__ == "__main__":
test_main()
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