Importing test suite from bsddb3 3.4.0 (with modifications).

Lib/bsddb/test/test_env_close.py

@@ -0,0 +1,86 @@
+"""
+TestCases for checking that it does not segfault when a DBEnv object
+is closed before its DB objects.
+"""
+
+import sys, os, string
+from pprint import pprint
+import tempfile
+import glob
+import unittest
+
+from bsddb import db
+
+from test.test_support import verbose
+
+
+#----------------------------------------------------------------------
+
+class DBEnvClosedEarlyCrash(unittest.TestCase):
+    def setUp(self):
+        self.homeDir = os.path.join(os.path.dirname(sys.argv[0]), 'db_home')
+        try: os.mkdir(self.homeDir)
+        except os.error: pass
+        tempfile.tempdir = self.homeDir
+        self.filename = os.path.split(tempfile.mktemp())[1]
+        tempfile.tempdir = None
+
+    def tearDown(self):
+        files = glob.glob(os.path.join(self.homeDir, '*'))
+        for file in files:
+            os.remove(file)
+
+
+    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)
+        d.open(self.filename, db.DB_BTREE, db.DB_CREATE | db.DB_THREAD, 0666)
+
+        try:
+            dbenv.close()
+        except db.DBError:
+            try:
+                d.close()
+            except db.DBError:
+                return
+            assert 0, "DB close did not raise an exception about its DBEnv being trashed"
+
+        assert 0, "dbenv did not raise an exception about its DB being open"
+
+
+    def test02_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)
+
+        try:
+            dbenv.close()
+        except db.DBError:
+            pass  # good, it should raise an exception
+
+        # this should not raise an exception, it should silently skip
+        # the db->close() call as it can't be done safely.
+        del d
+        try:
+            import gc
+        except ImportError:
+            gc = None
+        if gc:
+            # force d.__del__ [DB_dealloc] to be called
+            gc.collect()
+
+
+#----------------------------------------------------------------------
+
+def suite():
+    return unittest.makeSuite(DBEnvClosedEarlyCrash)
+
+
+if __name__ == '__main__':
+    unittest.main( defaultTest='suite' )
+
+