diff --git a/tempest/api/network/test_security_groups_negative.py b/tempest/api/network/test_security_groups_negative.py
index d321e23..daeb89f 100644
--- a/tempest/api/network/test_security_groups_negative.py
+++ b/tempest/api/network/test_security_groups_negative.py
@@ -16,6 +16,7 @@
 #    under the License.
 
 from tempest.api.network import test_security_groups as base
+from tempest.common.utils import data_utils
 from tempest import exceptions
 from tempest.test import attr
 import uuid
@@ -37,6 +38,54 @@
                           self.client.show_security_group_rule,
                           non_exist_id)
 
+    @attr(type=['negative', 'smoke'])
+    def test_delete_non_existent_security_group(self):
+        non_exist_id = 'fictional-id'
+        self.assertRaises(exceptions.NotFound,
+                          self.client.delete_security_group,
+                          non_exist_id
+                          )
+
+    @attr(type=['negative', 'smoke'])
+    def test_create_security_group_rule_with_bad_protocol(self):
+        # Create a security group
+        name = data_utils.rand_name('secgroup-')
+        resp, group_create_body = self.client.create_security_group(name)
+        self.assertEqual('201', resp['status'])
+        self.addCleanup(self._delete_security_group,
+                        group_create_body['security_group']['id'])
+        self.assertEqual(group_create_body['security_group']['name'], name)
+
+        #Create rule with bad protocol name
+        pname = 'bad_protocol_name'
+        self.assertRaises(exceptions.BadRequest,
+                          self.client.create_security_group_rule,
+                          group_create_body['security_group']['id'],
+                          protocol=pname)
+
+    @attr(type=['negative', 'smoke'])
+    def test_create_security_group_rule_with_invalid_ports(self):
+        # Create a security group
+        name = data_utils.rand_name('secgroup-')
+        resp, group_create_body = self.client.create_security_group(name)
+        self.assertEqual('201', resp['status'])
+        self.addCleanup(self._delete_security_group,
+                        group_create_body['security_group']['id'])
+        self.assertEqual(group_create_body['security_group']['name'], name)
+
+        #Create rule with invalid ports
+        states = [(-16, 80, 'Invalid value for port -16'),
+                  (80, 79, 'port_range_min must be <= port_range_max'),
+                  (80, 65536, 'Invalid value for port 65536')]
+        for pmin, pmax, msg in states:
+            ex = self.assertRaises(exceptions.BadRequest,
+                                   self.client.create_security_group_rule,
+                                   group_create_body['security_group']['id'],
+                                   protocol='tcp',
+                                   port_range_min=pmin,
+                                   port_range_max=pmax)
+            self.assertIn(msg, str(ex))
+
 
 class NegativeSecGroupTestXML(NegativeSecGroupTest):
     _interface = 'xml'