Abstract out policy editor data to helper

- add tests for new class
- create tests for UI
- add validation on injected paths

ee/app/assets/javascripts/threat_monitoring/components/policy_editor/policy_alert_picker.vue

@@ -22,12 +22,13 @@ export default {
     GlLink,
     GlSprintf,
   },
-  inject: ['configureAgentHelpPath', 'createAgentHelpPath', 'projectPath'],
-  props: {
-    policyAlert: {
-      type: Boolean,
-      required: true,
+  inject: {
+    configureAgentHelpPath: { type: String, default: '' },
+    createAgentHelpPath: { type: String, default: '' },
+    projectPath: { type: String, default: '' },
   },
+  props: {
+    policyAlert: { type: Boolean, required: true },
   },
   apollo: {
     isAgentInstalled: {
@@ -52,10 +53,22 @@ export default {
 
 <template>
   <div>
-    <gl-alert v-if="policyAlert" variant="warning" :dismissible="false" class="gl-mt-5">
+    <gl-alert
+      v-if="policyAlert"
+      variant="warning"
+      :dismissible="false"
+      class="gl-mt-5"
+      data-testid="policy-alert-high-volume"
+    >
       {{ $options.i18n.HIGH_VOLUME_WARNING }}
     </gl-alert>
-    <gl-alert v-if="!isAgentInstalled" variant="danger" :dismissible="false" class="gl-mt-5">
+    <gl-alert
+      v-if="!isAgentInstalled"
+      variant="danger"
+      :dismissible="false"
+      class="gl-mt-5"
+      data-testid="policy-alert-no-agent"
+    >
       <gl-sprintf :message="$options.i18n.AGENT_REQUIRED">
         <template #installLink="{ content }">
           <gl-link :href="createAgentHelpPath" target="_blank">
@@ -88,7 +101,7 @@ export default {
         class="gl-w-full gl-display-flex gl-justify-content-space-between gl-align-items-center"
       >
         <span>
-          <gl-sprintf :message="$options.i18n.ACTION">
+          <gl-sprintf :message="$options.i18n.ACTION" data-testid="policy-alert-message">
             <template #label="{ content }">
               <label for="actionType" class="text-uppercase gl-font-lg gl-mr-4 gl-mb-0">
                 {{ content }}

ee/app/helpers/policy_helper.rb

+# frozen_string_literal: true
+
+module PolicyHelper
+  def policy_details(project, policy = nil, environment = nil)
+    return unless project
+
+    details = {
+      network_policies_endpoint: project_security_network_policies_path(project),
+      configure_agent_help_path: help_page_url('user/clusters/agent/repository.html'),
+      create_agent_help_path: help_page_url('user/clusters/agent/index.md', anchor: 'create-an-agent-record-in-gitlab'),
+      environments_endpoint: project_environments_path(project),
+      project_path: project.full_path,
+      threat_monitoring_path: project_threat_monitoring_path(project)
+    }
+
+    return details unless policy && environment
+
+    edit_details = {
+      policy: policy.to_json,
+      environment_id: environment.id
+    }
+    details.merge(edit_details)
+  end
+end

ee/app/views/projects/threat_monitoring/edit.html.haml

 - add_to_breadcrumbs s_("ThreatMonitoring|Threat Monitoring"), project_threat_monitoring_path(@project)
 - breadcrumb_title @policy_name
 - page_title s_("NetworkPolicies|Policy editor")
+- policy_details = policy_details(@project, @policy, @environment)
 
-#js-policy-builder-app{ data: { network_policies_endpoint: project_security_network_policies_path(@project),
-  configure_agent_help_path: help_page_url('user/clusters/agent/repository.html'),
-  create_agent_help_path: help_page_url('user/clusters/agent/index.md', anchor: 'create-an-agent-record-in-gitlab'),
-  environments_endpoint: project_environments_path(@project),
-  threat_monitoring_path: project_threat_monitoring_path(@project),
-  policy: @policy.to_json,
-  project_path: @project.full_path,
-  environment_id: @environment.id,
-} }
+#js-policy-builder-app{ data: policy_details }

ee/app/views/projects/threat_monitoring/new.html.haml

 - add_to_breadcrumbs s_("ThreatMonitoring|Threat Monitoring"), project_threat_monitoring_path(@project)
 - breadcrumb_title s_("NetworkPolicies|New policy")
 - page_title s_("NetworkPolicies|Policy editor")
+- policy_details = policy_details(@project)
 
-#js-policy-builder-app{ data: { network_policies_endpoint: project_security_network_policies_path(@project),
-  configure_agent_help_path: help_page_url('user/clusters/agent/repository.html'),
-  create_agent_help_path: help_page_url('user/clusters/agent/index.md', anchor: 'create-an-agent-record-in-gitlab'),
-  environments_endpoint: project_environments_path(@project),
-  project_path: @project.full_path,
-  threat_monitoring_path: project_threat_monitoring_path(@project),
-} }
+#js-policy-builder-app{ data: policy_details }

ee/spec/frontend/threat_monitoring/components/policy_editor/policy_alert_picker_spec.js

-import { shallowMount } from '@vue/test-utils';
-import { GlAlert, GlSprintf } from '@gitlab/ui';
+import { shallowMount, createLocalVue } from '@vue/test-utils';
+import createMockApollo from 'helpers/mock_apollo_helper';
+import { extendedWrapper } from 'helpers/vue_test_utils_helper';
+import VueApollo from 'vue-apollo';
 import PolicyAlertPicker from 'ee/threat_monitoring/components/policy_editor/policy_alert_picker.vue';
+import getAgentCount from 'ee/threat_monitoring/graphql/queries/get_agent_count.query.graphql';
+
+const localVue = createLocalVue();
+localVue.use(VueApollo);
 
 describe('PolicyAlertPicker component', () => {
   let wrapper;
 
+  const createMockApolloProvider = ({ agentCount }) => {
+    const getAgentCountHandler = jest
+      .fn()
+      .mockResolvedValue({ data: { project: { clusterAgents: { count: agentCount } } } });
+
+    return createMockApollo([[getAgentCount, getAgentCountHandler]]);
+  };
+
   const defaultProps = { policyAlert: false };
 
   const findAddAlertButton = () => wrapper.find("[data-testid='add-alert']");
-  const findGlAlert = () => wrapper.find(GlAlert);
-  const findGlSprintf = () => wrapper.find(GlSprintf);
+  const findAlertMessage = () => wrapper.findByTestId('policy-alert-message');
+  const findHighVolumeAlert = () => wrapper.findByTestId('policy-alert-high-volume');
+  const findNoAgentAlert = () => wrapper.findByTestId('policy-alert-no-agent');
   const findRemoveAlertButton = () => wrapper.find("[data-testid='remove-alert']");
 
-  const createWrapper = ({ propsData = defaultProps } = {}) => {
-    wrapper = shallowMount(PolicyAlertPicker, {
+  const createWrapper = async ({ propsData = defaultProps, agentCount = 1 } = {}) => {
+    const apolloProvider = createMockApolloProvider({ agentCount });
+
+    wrapper = extendedWrapper(
+      shallowMount(PolicyAlertPicker, {
+        apolloProvider,
+        localVue,
         propsData: {
           ...propsData,
         },
-    });
+        provide: {
+          configureAgentHelpPath: '',
+          createAgentHelpPath: '',
+          projectPath: '',
+        },
+      }),
+    );
+    await wrapper.vm.$nextTick();
   };
 
   afterEach(() => {
     wrapper.destroy();
+    wrapper = null;
   });
 
   describe('default state', () => {
-    beforeEach(() => {
-      createWrapper();
+    beforeEach(async () => {
+      await createWrapper();
     });
 
     it('does render the add alert button', () => {
@@ -34,17 +62,21 @@ describe('PolicyAlertPicker component', () => {
     });
 
     it('does not render the high volume warning', () => {
-      expect(findGlAlert().exists()).toBe(false);
+      expect(findHighVolumeAlert().exists()).toBe(false);
     });
 
     it('does not render the alert message', () => {
-      expect(findGlSprintf().exists()).toBe(false);
+      expect(findAlertMessage().exists()).toBe(false);
     });
 
     it('does not render the remove alert button', () => {
       expect(findRemoveAlertButton().exists()).toBe(false);
     });
 
+    it('does not show the "no agent" alert when there is an agent, ', () => {
+      expect(findNoAgentAlert().exists()).toBe(false);
+    });
+
     it('does emit an event to add the alert', () => {
       findAddAlertButton().vm.$emit('click');
       expect(wrapper.emitted('update-alert')).toEqual([[true]]);
@@ -52,8 +84,8 @@ describe('PolicyAlertPicker component', () => {
   });
 
   describe('alert enabled', () => {
-    beforeEach(() => {
-      createWrapper({ propsData: { policyAlert: true } });
+    beforeEach(async () => {
+      await createWrapper({ propsData: { policyAlert: true } });
     });
 
     it('does not render the add alert button', () => {
@@ -61,20 +93,36 @@ describe('PolicyAlertPicker component', () => {
     });
 
     it('does render the high volume warning', () => {
-      expect(findGlAlert().exists()).toBe(true);
+      expect(findHighVolumeAlert().exists()).toBe(true);
     });
 
     it('does render the alert message', () => {
-      expect(findGlSprintf().exists()).toBe(true);
+      expect(findAlertMessage().exists()).toBe(true);
     });
 
     it('does render the remove alert button', () => {
       expect(findRemoveAlertButton().exists()).toBe(true);
     });
 
+    it('does not show the "no agent" alert when there is an agent, ', () => {
+      expect(findNoAgentAlert().exists()).toBe(false);
+    });
+
     it('does emit an event to remove the alert', () => {
       findRemoveAlertButton().vm.$emit('click');
       expect(wrapper.emitted('update-alert')).toEqual([[false]]);
     });
   });
+
+  describe('no agent installed', () => {
+    it('add alert button is there and there is NOT an agent', async () => {
+      await createWrapper({ agentCount: 0 });
+      expect(findNoAgentAlert().exists()).toBe(true);
+    });
+
+    it('add alert button is NOT there and there is NOT an agent', async () => {
+      await createWrapper({ propsData: { policyAlert: true }, agentCount: 0 });
+      expect(findNoAgentAlert().exists()).toBe(true);
+    });
+  });
 });

ee/spec/helpers/policy_helper_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe PolicyHelper do
+  let(:project) { create(:project, :repository, :public) }
+  let(:policy) do
+    Gitlab::Kubernetes::CiliumNetworkPolicy.new(
+      name: 'policy',
+      namespace: 'another',
+      selector: { matchLabels: { role: 'db' } },
+      ingress: [{ from: [{ namespaceSelector: { matchLabels: { project: 'myproject' } } }] }]
+    )
+  end
+
+  let(:environment) { create(:environment, project: project) }
+
+  describe '#policy_details' do
+    context 'when a new policy is being created' do
+      subject { helper.policy_details(project) }
+
+      it 'returns expected policy data' do
+        expect(subject).to match(
+          network_policies_endpoint: kind_of(String),
+          configure_agent_help_path: kind_of(String),
+          create_agent_help_path: kind_of(String),
+          environments_endpoint: kind_of(String),
+          project_path: project.full_path,
+          threat_monitoring_path: kind_of(String)
+        )
+      end
+    end
+
+    context 'when an existing policy is being edited' do
+      subject { helper.policy_details(project, policy, environment) }
+
+      it 'returns expected policy data' do
+        expect(subject).to match(
+          network_policies_endpoint: kind_of(String),
+          configure_agent_help_path: kind_of(String),
+          create_agent_help_path: kind_of(String),
+          environments_endpoint: kind_of(String),
+          project_path: project.full_path,
+          threat_monitoring_path: kind_of(String),
+          policy: policy.to_json,
+          environment_id: environment.id
+        )
+      end
+    end
+  end
+end

locale/gitlab.pot

@@ -18845,6 +18845,9 @@ msgstr ""
 msgid "NetworkPolicies|None selected"
 msgstr ""
 
+msgid "NetworkPolicies|Please %{installLinkStart}install%{installLinkEnd} and %{configureLinkStart}configure a Kubernetes Agent for this project%{configureLinkEnd} to enable alerts."
+msgstr ""
+
 msgid "NetworkPolicies|Policies are a specification of how groups of pods are allowed to communicate with each other's network endpoints."
 msgstr ""