Fix specs saving an invalid service

After the changes in ab81251d the specs were misleading.

app/controllers/concerns/integrations_actions.rb

@@ -15,9 +15,7 @@ module IntegrationsActions
   end
 
   def update
-    integration.attributes = service_params[:service]
-
-    saved = integration.save(context: :manual_change)
+    saved = integration.update(service_params[:service])
 
     respond_to do |format|
       format.html do

app/models/project_services/issue_tracker_service.rb

@@ -172,7 +172,7 @@ class IssueTrackerService < Service
   end
 
   def one_issue_tracker
-    return if template?
+    return if template? || instance?
     return if project.blank?
 
     if project.services.external_issue_trackers.where.not(id: id).any?

lib/api/services.rb

@@ -130,13 +130,11 @@ module API
 
     TRIGGER_SERVICES.each do |service_slug, settings|
       helpers do
-        # rubocop: disable CodeReuse/ActiveRecord
         def slash_command_service(project, service_slug, params)
-          project.services.active.where(template: false).find do |service|
+          project.services.active.find do |service|
             service.try(:token) == params[:token] && service.to_param == service_slug.underscore
           end
         end
-        # rubocop: enable CodeReuse/ActiveRecord
       end
 
       params do

spec/controllers/admin/integrations_controller_spec.rb

@@ -49,11 +49,12 @@ describe Admin::IntegrationsController do
     end
 
     context 'invalid params' do
-      let(:url) { 'https://jira.localhost' }
+      let(:url) { 'invalid' }
 
-      it 'updates the integration' do
-        expect(response).to have_gitlab_http_status(:found)
-        expect(integration.reload.url).to eq(url)
+      it 'does not update the integration' do
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(response).to render_template(:edit)
+        expect(integration.reload.url).not_to eq(url)
       end
     end
   end

spec/controllers/groups/settings/integrations_controller_spec.rb

@@ -100,11 +100,12 @@ describe Groups::Settings::IntegrationsController do
     end
 
     context 'invalid params' do
-      let(:url) { 'https://jira.localhost' }
+      let(:url) { 'invalid' }
 
       it 'does not update the integration' do
-        expect(response).to have_gitlab_http_status(:found)
-        expect(integration.reload.url).to eq(url)
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(response).to render_template(:edit)
+        expect(integration.reload.url).not_to eq(url)
       end
     end
   end