Return a better error message(security_groups)

When creating a security group, whose name contains
other chars than numbers and letters, a non supportive error
message is thrown.

Fixes bug 1085888

Change-Id: I58ab57be29c0935dbfd10831fbaf97d09f654781

openstack_dashboard/dashboards/project/access_and_security/security_groups/forms.py

@@ -34,6 +34,10 @@ from openstack_dashboard import api
 
 class CreateGroup(forms.SelfHandlingForm):
     name = forms.CharField(label=_("Name"),
+                           error_messages={
+                            'required': _('This field is required.'),
+                            'invalid': _("The string may only contain"
+                                         " ASCII characters and numbers.")},
                            validators=[validators.validate_slug])
     description = forms.CharField(label=_("Description"))
 

openstack_dashboard/dashboards/project/access_and_security/security_groups/tests.py

@@ -81,6 +81,20 @@ class SecurityGroupsViewTests(test.TestCase):
         self.assertMessageCount(error=1)
         self.assertRedirectsNoFollow(res, INDEX_URL)
 
+    def test_create_security_groups_post_wrong_name(self):
+        sec_group = self.security_groups.first()
+        self.mox.StubOutWithMock(api, 'security_group_create')
+        fail_name = sec_group.name + ' invalid'
+        self.mox.ReplayAll()
+
+        formData = {'method': 'CreateGroup',
+                    'name': fail_name,
+                    'description': sec_group.description}
+        res = self.client.post(SG_CREATE_URL, formData)
+        self.assertTemplateUsed(res,
+                    'project/access_and_security/security_groups/create.html')
+        self.assertContains(res, "ASCII")
+
     def test_edit_rules_get(self):
         sec_group = self.security_groups.first()
         sec_group_list = self.security_groups.list()