mirror of https://github.com/python/cpython
143 lines
5.3 KiB
Python
143 lines
5.3 KiB
Python
import unittest
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import os
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from test_all import db, test_support, get_new_environment_path, get_new_database_path
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class DBSequenceTest(unittest.TestCase):
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import sys
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if sys.version_info < (2, 4) :
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def assertTrue(self, expr, msg=None):
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self.failUnless(expr,msg=msg)
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def setUp(self):
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self.int_32_max = 0x100000000
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self.homeDir = get_new_environment_path()
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self.filename = "test"
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self.dbenv = db.DBEnv()
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self.dbenv.open(self.homeDir, db.DB_CREATE | db.DB_INIT_MPOOL, 0666)
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self.d = db.DB(self.dbenv)
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self.d.open(self.filename, db.DB_BTREE, db.DB_CREATE, 0666)
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def tearDown(self):
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if hasattr(self, 'seq'):
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self.seq.close()
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del self.seq
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if hasattr(self, 'd'):
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self.d.close()
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del self.d
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if hasattr(self, 'dbenv'):
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self.dbenv.close()
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del self.dbenv
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test_support.rmtree(self.homeDir)
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def test_get(self):
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self.seq = db.DBSequence(self.d, flags=0)
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start_value = 10 * self.int_32_max
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self.assertEqual(0xA00000000, start_value)
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self.assertEqual(None, self.seq.initial_value(start_value))
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self.assertEqual(None, self.seq.open(key='id', txn=None, flags=db.DB_CREATE))
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self.assertEqual(start_value, self.seq.get(5))
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self.assertEqual(start_value + 5, self.seq.get())
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def test_remove(self):
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self.seq = db.DBSequence(self.d, flags=0)
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self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
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self.assertEqual(None, self.seq.remove(txn=None, flags=0))
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del self.seq
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def test_get_key(self):
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self.seq = db.DBSequence(self.d, flags=0)
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key = 'foo'
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self.assertEqual(None, self.seq.open(key=key, txn=None, flags=db.DB_CREATE))
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self.assertEqual(key, self.seq.get_key())
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def test_get_dbp(self):
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self.seq = db.DBSequence(self.d, flags=0)
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self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
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self.assertEqual(self.d, self.seq.get_dbp())
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def test_cachesize(self):
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self.seq = db.DBSequence(self.d, flags=0)
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cashe_size = 10
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self.assertEqual(None, self.seq.set_cachesize(cashe_size))
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self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
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self.assertEqual(cashe_size, self.seq.get_cachesize())
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def test_flags(self):
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self.seq = db.DBSequence(self.d, flags=0)
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flag = db.DB_SEQ_WRAP;
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self.assertEqual(None, self.seq.set_flags(flag))
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self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
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self.assertEqual(flag, self.seq.get_flags() & flag)
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def test_range(self):
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self.seq = db.DBSequence(self.d, flags=0)
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seq_range = (10 * self.int_32_max, 11 * self.int_32_max - 1)
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self.assertEqual(None, self.seq.set_range(seq_range))
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self.seq.initial_value(seq_range[0])
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self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
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self.assertEqual(seq_range, self.seq.get_range())
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def test_stat(self):
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self.seq = db.DBSequence(self.d, flags=0)
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self.assertEqual(None, self.seq.open(key='foo', txn=None, flags=db.DB_CREATE))
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stat = self.seq.stat()
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for param in ('nowait', 'min', 'max', 'value', 'current',
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'flags', 'cache_size', 'last_value', 'wait'):
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self.assertTrue(param in stat, "parameter %s isn't in stat info" % param)
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if db.version() >= (4,7) :
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# This code checks a crash solved in Berkeley DB 4.7
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def test_stat_crash(self) :
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d=db.DB()
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d.open(None,dbtype=db.DB_HASH,flags=db.DB_CREATE) # In RAM
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seq = db.DBSequence(d, flags=0)
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self.assertRaises(db.DBNotFoundError, seq.open,
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key='id', txn=None, flags=0)
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self.assertRaises(db.DBInvalidArgError, seq.stat)
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d.close()
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def test_64bits(self) :
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# We don't use both extremes because they are problematic
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value_plus=(1L<<63)-2
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self.assertEqual(9223372036854775806L,value_plus)
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value_minus=(-1L<<63)+1 # Two complement
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self.assertEqual(-9223372036854775807L,value_minus)
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self.seq = db.DBSequence(self.d, flags=0)
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self.assertEqual(None, self.seq.initial_value(value_plus-1))
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self.assertEqual(None, self.seq.open(key='id', txn=None,
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flags=db.DB_CREATE))
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self.assertEqual(value_plus-1, self.seq.get(1))
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self.assertEqual(value_plus, self.seq.get(1))
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self.seq.remove(txn=None, flags=0)
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self.seq = db.DBSequence(self.d, flags=0)
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self.assertEqual(None, self.seq.initial_value(value_minus))
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self.assertEqual(None, self.seq.open(key='id', txn=None,
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flags=db.DB_CREATE))
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self.assertEqual(value_minus, self.seq.get(1))
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self.assertEqual(value_minus+1, self.seq.get(1))
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def test_multiple_close(self):
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self.seq = db.DBSequence(self.d)
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self.seq.close() # You can close a Sequence multiple times
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self.seq.close()
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self.seq.close()
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def test_suite():
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suite = unittest.TestSuite()
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if db.version() >= (4,3):
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suite.addTest(unittest.makeSuite(DBSequenceTest))
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return suite
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if __name__ == '__main__':
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unittest.main(defaultTest='test_suite')
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