test_get_none.py 文件源码

def test02_get_raises_exception(self):
        d = db.DB()
        d.open(self.filename, db.DB_BTREE, db.DB_CREATE)
        d.set_get_returns_none(0)

        for x in string.letters:
            d.put(x, x * 40)

        self.assertRaises(db.DBNotFoundError, d.get, 'bad key')
        self.assertRaises(KeyError, d.get, 'bad key')

        data = d.get(string.letters[0])
        self.assertEqual(data, string.letters[0]*40)

        count = 0
        exceptionHappened = 0
        c = d.cursor()
        rec = c.first()
        while rec:
            count = count + 1
            try:
                rec = c.next()
            except db.DBNotFoundError:  # end of the records
                exceptionHappened = 1
                break

        self.assertNotEqual(rec, None)
        self.assertTrue(exceptionHappened)
        self.assertEqual(count, len(string.letters))

        c.close()
        d.close()

#----------------------------------------------------------------------