diff --git a/python/samba/tests/subunitrun.py b/python/samba/tests/subunitrun.py
old mode 100644
new mode 100755
diff --git a/source4/dsdb/tests/python/sec_descriptor.py b/source4/dsdb/tests/python/sec_descriptor.py
index 10d37187a56..39b5d4e569f 100755
--- a/source4/dsdb/tests/python/sec_descriptor.py
+++ b/source4/dsdb/tests/python/sec_descriptor.py
@@ -142,12 +142,13 @@ showInAdvancedViewOnly: TRUE
 
     def setUp(self):
         super(DescriptorTests, self).setUp()
-        self.ldb_admin = ldb
-        self.base_dn = ldb.domain_dn()
+        self.ldb_admin = SamDB(host, credentials=creds, session_info=system_session(lp), lp=lp,
+            options=ldb_options)
+        self.base_dn = self.ldb_admin.domain_dn()
         self.configuration_dn = self.ldb_admin.get_config_basedn().get_linearized()
         self.schema_dn = self.ldb_admin.get_schema_basedn().get_linearized()
         self.domain_sid = security.dom_sid(self.ldb_admin.get_domain_sid())
-        self.sd_utils = sd_utils.SDUtils(ldb)
+        self.sd_utils = sd_utils.SDUtils(self.ldb_admin)
         print "baseDN: %s" % self.base_dn
 
     ################################################################################################
@@ -2173,22 +2174,15 @@ if not "://" in host:
 if host.lower().startswith("ldap://"):
     ldb_options = ["modules:paged_searches"]
 
-ldb = SamDB(host,
-            credentials=creds,
-            session_info=system_session(lp),
-            lp=lp,
-            options=ldb_options)
-
 runner = SubunitTestRunner()
-rc = 0
-if not runner.run(unittest.makeSuite(OwnerGroupDescriptorTests)).wasSuccessful():
-    rc = 1
-if not runner.run(unittest.makeSuite(DaclDescriptorTests)).wasSuccessful():
-    rc = 1
-if not runner.run(unittest.makeSuite(SdFlagsDescriptorTests)).wasSuccessful():
-    rc = 1
-if not runner.run(unittest.makeSuite(RightsAttributesTests)).wasSuccessful():
-    rc = 1
-if not runner.run(unittest.makeSuite(SdAutoInheritTests)).wasSuccessful():
+suite = unittest.TestSuite()
+suite.addTests(unittest.makeSuite(OwnerGroupDescriptorTests))
+suite.addTests(unittest.makeSuite(DaclDescriptorTests))
+suite.addTests(unittest.makeSuite(SdFlagsDescriptorTests))
+suite.addTests(unittest.makeSuite(RightsAttributesTests))
+suite.addTests(unittest.makeSuite(SdAutoInheritTests))
+if not runner.run(suite).wasSuccessful():
     rc = 1
+else:
+    rc = 0
 sys.exit(rc)
diff --git a/source4/selftest/tests.py b/source4/selftest/tests.py
index 9feb9ad99bb..ef8e957e79a 100755
--- a/source4/selftest/tests.py
+++ b/source4/selftest/tests.py
@@ -473,7 +473,7 @@ plantestsuite("samba4.urgent_replication.python(dc)", "dc:local", [python, os.pa
 plantestsuite_loadlist("samba4.ldap.dirsync.python(dc)", "dc", [python, os.path.join(samba4srcdir, "dsdb/tests/python/dirsync.py"), '$SERVER', '-U"$USERNAME%$PASSWORD"', '--workgroup=$DOMAIN', '$LOADLIST', '$LISTOPT'])
 plantestsuite("samba4.ldap.sites.python(dc)", "dc", [python, os.path.join(samba4srcdir, "dsdb/tests/python/sites.py"), '$SERVER', '-U"$USERNAME%$PASSWORD"', '--workgroup=$DOMAIN'])
 for env in ["dc", "fl2000dc", "fl2003dc", "fl2008r2dc"]:
-    plantestsuite("samba4.ldap_schema.python(%s)" % env, env, [python, os.path.join(samba4srcdir, "dsdb/tests/python/ldap_schema.py"), '$SERVER', '-U"$USERNAME%$PASSWORD"', '--workgroup=$DOMAIN'])
+    plantestsuite_loadlist("samba4.ldap_schema.python(%s)" % env, env, [python, os.path.join(samba4srcdir, "dsdb/tests/python/ldap_schema.py"), '$SERVER', '-U"$USERNAME%$PASSWORD"', '--workgroup=$DOMAIN', '$LOADLIST', '$LISTOPT'])
     plantestsuite("samba4.ldap.possibleInferiors.python(%s)" % env, env, [python, os.path.join(samba4srcdir, "dsdb/samdb/ldb_modules/tests/possibleinferiors.py"), "ldap://$SERVER", '-U"$USERNAME%$PASSWORD"', "-W$DOMAIN"])
     plantestsuite("samba4.ldap.secdesc.python(%s)" % env, env, [python, os.path.join(samba4srcdir, "dsdb/tests/python/sec_descriptor.py"), '$SERVER', '-U"$USERNAME%$PASSWORD"', '--workgroup=$DOMAIN'])
     plantestsuite("samba4.ldap.acl.python(%s)" % env, env, [python, os.path.join(samba4srcdir, "dsdb/tests/python/acl.py"), '$SERVER', '-U"$USERNAME%$PASSWORD"', '--workgroup=$DOMAIN'])