Address MR comments

app/models/project_services/deployment_service.rb

@@ -30,4 +30,8 @@ class DeploymentService < Service
   def terminals(environment)
     raise NotImplementedError
   end
+
+  def can_test?
+    false
+  end
 end

app/models/project_services/jira_service.rb

@@ -91,7 +91,7 @@ class JiraService < IssueTrackerService
       { type: 'text', name: 'project_key', placeholder: 'Project Key', required: true },
       { type: 'text', name: 'username', placeholder: '', required: true },
       { type: 'password', name: 'password', placeholder: '', required: true },
-      { type: 'text', name: 'jira_issue_transition_id', placeholder: '', required: true }
+      { type: 'text', name: 'jira_issue_transition_id', placeholder: '' }
     ]
   end
 

app/models/project_services/mock_ci_service.rb

@@ -80,4 +80,8 @@ class MockCiService < CiService
       :error
     end
   end
+
+  def can_test?
+    false
+  end
 end

app/models/project_services/mock_monitoring_service.rb

@@ -14,4 +14,8 @@ class MockMonitoringService < MonitoringService
   def metrics(environment)
     JSON.parse(File.read(Rails.root + 'spec/fixtures/metrics.json'))
   end
+
+  def can_test?
+    false
+  end
 end

spec/controllers/projects/services_controller_spec.rb

@@ -58,9 +58,6 @@ describe Projects::ServicesController do
 
         expect(response.status).to eq(200)
       end
-
-      def built_service
-      end
     end
 
     context 'failure' do

spec/features/projects/services/jira_service_spec.rb

@@ -47,6 +47,18 @@ feature 'Setup Jira service', :feature, :js do
         WebMock.stub_request(:get, project_url).to_return(status: 401)
       end
 
+      it 'shows errors when some required fields are not filled in' do
+        click_link('JIRA')
+
+        check 'Active'
+        fill_in 'service_password', with: 'password'
+        click_button('Test settings and save changes')
+
+        page.within('.service-settings') do
+          expect(page).to have_content('This field is required.')
+        end
+      end
+
       it 'activates the JIRA service' do
         click_link('JIRA')
         fill_form