mirror of https://github.com/python/cpython
93 lines
2.2 KiB
Python
93 lines
2.2 KiB
Python
"""
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TestCases for checking set_get_returns_none.
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"""
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import os, string
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import unittest
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from test_all import db, verbose, get_new_database_path
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#----------------------------------------------------------------------
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class GetReturnsNoneTestCase(unittest.TestCase):
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def setUp(self):
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self.filename = get_new_database_path()
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def tearDown(self):
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try:
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os.remove(self.filename)
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except os.error:
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pass
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def test01_get_returns_none(self):
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d = db.DB()
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d.open(self.filename, db.DB_BTREE, db.DB_CREATE)
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d.set_get_returns_none(1)
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for x in string.letters:
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d.put(x, x * 40)
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data = d.get('bad key')
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self.assertEqual(data, None)
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data = d.get(string.letters[0])
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self.assertEqual(data, string.letters[0]*40)
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count = 0
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c = d.cursor()
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rec = c.first()
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while rec:
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count = count + 1
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rec = c.next()
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self.assertEqual(rec, None)
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self.assertEqual(count, len(string.letters))
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c.close()
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d.close()
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def test02_get_raises_exception(self):
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d = db.DB()
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d.open(self.filename, db.DB_BTREE, db.DB_CREATE)
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d.set_get_returns_none(0)
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for x in string.letters:
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d.put(x, x * 40)
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self.assertRaises(db.DBNotFoundError, d.get, 'bad key')
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self.assertRaises(KeyError, d.get, 'bad key')
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data = d.get(string.letters[0])
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self.assertEqual(data, string.letters[0]*40)
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count = 0
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exceptionHappened = 0
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c = d.cursor()
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rec = c.first()
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while rec:
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count = count + 1
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try:
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rec = c.next()
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except db.DBNotFoundError: # end of the records
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exceptionHappened = 1
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break
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self.assertNotEqual(rec, None)
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self.assertTrue(exceptionHappened)
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self.assertEqual(count, len(string.letters))
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c.close()
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d.close()
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#----------------------------------------------------------------------
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def test_suite():
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return unittest.makeSuite(GetReturnsNoneTestCase)
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if __name__ == '__main__':
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unittest.main(defaultTest='test_suite')
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