--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/symbian-qemu-0.9.1-12/python-2.6.1/Lib/bsddb/test/test_early_close.py Fri Jul 31 15:01:17 2009 +0100
@@ -0,0 +1,195 @@
+"""TestCases for checking that it does not segfault when a DBEnv object
+is closed before its DB objects.
+"""
+
+import os
+import unittest
+
+from test_all import db, test_support, verbose, get_new_environment_path, get_new_database_path
+
+# We're going to get warnings in this module about trying to close the db when
+# its env is already closed. Let's just ignore those.
+try:
+ import warnings
+except ImportError:
+ pass
+else:
+ warnings.filterwarnings('ignore',
+ message='DB could not be closed in',
+ category=RuntimeWarning)
+
+
+#----------------------------------------------------------------------
+
+class DBEnvClosedEarlyCrash(unittest.TestCase):
+ def setUp(self):
+ self.homeDir = get_new_environment_path()
+ self.filename = "test"
+
+ def tearDown(self):
+ test_support.rmtree(self.homeDir)
+
+ def test01_close_dbenv_before_db(self):
+ dbenv = db.DBEnv()
+ dbenv.open(self.homeDir,
+ db.DB_INIT_CDB| db.DB_CREATE |db.DB_THREAD|db.DB_INIT_MPOOL,
+ 0666)
+
+ d = db.DB(dbenv)
+ d2 = db.DB(dbenv)
+ d.open(self.filename, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
+
+ self.assertRaises(db.DBNoSuchFileError, d2.open,
+ self.filename+"2", db.DB_BTREE, db.DB_THREAD, 0666)
+
+ d.put("test","this is a test")
+ self.assertEqual(d.get("test"), "this is a test", "put!=get")
+ dbenv.close() # This "close" should close the child db handle also
+ self.assertRaises(db.DBError, d.get, "test")
+
+ def test02_close_dbenv_before_dbcursor(self):
+ dbenv = db.DBEnv()
+ dbenv.open(self.homeDir,
+ db.DB_INIT_CDB| db.DB_CREATE |db.DB_THREAD|db.DB_INIT_MPOOL,
+ 0666)
+
+ d = db.DB(dbenv)
+ d.open(self.filename, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
+
+ d.put("test","this is a test")
+ d.put("test2","another test")
+ d.put("test3","another one")
+ self.assertEqual(d.get("test"), "this is a test", "put!=get")
+ c=d.cursor()
+ c.first()
+ c.next()
+ d.close() # This "close" should close the child db handle also
+ # db.close should close the child cursor
+ self.assertRaises(db.DBError,c.next)
+
+ d = db.DB(dbenv)
+ d.open(self.filename, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
+ c=d.cursor()
+ c.first()
+ c.next()
+ dbenv.close()
+ # The "close" should close the child db handle also, with cursors
+ self.assertRaises(db.DBError, c.next)
+
+ def test03_close_db_before_dbcursor_without_env(self):
+ import os.path
+ path=os.path.join(self.homeDir,self.filename)
+ d = db.DB()
+ d.open(path, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
+
+ d.put("test","this is a test")
+ d.put("test2","another test")
+ d.put("test3","another one")
+ self.assertEqual(d.get("test"), "this is a test", "put!=get")
+ c=d.cursor()
+ c.first()
+ c.next()
+ d.close()
+ # The "close" should close the child db handle also
+ self.assertRaises(db.DBError, c.next)
+
+ def test04_close_massive(self):
+ dbenv = db.DBEnv()
+ dbenv.open(self.homeDir,
+ db.DB_INIT_CDB| db.DB_CREATE |db.DB_THREAD|db.DB_INIT_MPOOL,
+ 0666)
+
+ dbs=[db.DB(dbenv) for i in xrange(16)]
+ cursors=[]
+ for i in dbs :
+ i.open(self.filename, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
+
+ dbs[10].put("test","this is a test")
+ dbs[10].put("test2","another test")
+ dbs[10].put("test3","another one")
+ self.assertEqual(dbs[4].get("test"), "this is a test", "put!=get")
+
+ for i in dbs :
+ cursors.extend([i.cursor() for j in xrange(32)])
+
+ for i in dbs[::3] :
+ i.close()
+ for i in cursors[::3] :
+ i.close()
+
+ # Check for missing exception in DB! (after DB close)
+ self.assertRaises(db.DBError, dbs[9].get, "test")
+
+ # Check for missing exception in DBCursor! (after DB close)
+ self.assertRaises(db.DBError, cursors[101].first)
+
+ cursors[80].first()
+ cursors[80].next()
+ dbenv.close() # This "close" should close the child db handle also
+ # Check for missing exception! (after DBEnv close)
+ self.assertRaises(db.DBError, cursors[80].next)
+
+ def test05_close_dbenv_delete_db_success(self):
+ dbenv = db.DBEnv()
+ dbenv.open(self.homeDir,
+ db.DB_INIT_CDB| db.DB_CREATE |db.DB_THREAD|db.DB_INIT_MPOOL,
+ 0666)
+
+ d = db.DB(dbenv)
+ d.open(self.filename, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
+
+ dbenv.close() # This "close" should close the child db handle also
+
+ del d
+ try:
+ import gc
+ except ImportError:
+ gc = None
+ if gc:
+ # force d.__del__ [DB_dealloc] to be called
+ gc.collect()
+
+ def test06_close_txn_before_dup_cursor(self) :
+ dbenv = db.DBEnv()
+ dbenv.open(self.homeDir,db.DB_INIT_TXN | db.DB_INIT_MPOOL |
+ db.DB_INIT_LOG | db.DB_CREATE)
+ d = db.DB(dbenv)
+ txn = dbenv.txn_begin()
+ if db.version() < (4,1) :
+ d.open(self.filename, dbtype = db.DB_HASH, flags = db.DB_CREATE)
+ else :
+ d.open(self.filename, dbtype = db.DB_HASH, flags = db.DB_CREATE,
+ txn=txn)
+ d.put("XXX", "yyy", txn=txn)
+ txn.commit()
+ txn = dbenv.txn_begin()
+ c1 = d.cursor(txn)
+ c2 = c1.dup()
+ self.assertEquals(("XXX", "yyy"), c1.first())
+ import warnings
+ # Not interested in warnings about implicit close.
+ with warnings.catch_warnings():
+ warnings.simplefilter("ignore")
+ txn.commit()
+ self.assertRaises(db.DBCursorClosedError, c2.first)
+
+ if db.version() > (4,3,0) :
+ def test07_close_db_before_sequence(self):
+ import os.path
+ path=os.path.join(self.homeDir,self.filename)
+ d = db.DB()
+ d.open(path, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
+ dbs=db.DBSequence(d)
+ d.close() # This "close" should close the child DBSequence also
+ dbs.close() # If not closed, core dump (in Berkeley DB 4.6.*)
+
+#----------------------------------------------------------------------
+
+def test_suite():
+ suite = unittest.TestSuite()
+ suite.addTest(unittest.makeSuite(DBEnvClosedEarlyCrash))
+ return suite
+
+
+if __name__ == '__main__':
+ unittest.main(defaultTest='test_suite')