Update test suite

Update tests
Add changelog

changelogs/unreleased/263252-mr-template-api.yml

+---
+title: Add merge request description templates to Static Site Editor
+merge_request: 46488
+author:
+type: added

spec/controllers/projects/templates_controller_spec.rb

@@ -10,6 +10,45 @@ RSpec.describe Projects::TemplatesController do
   let!(:file_1) { project.repository.create_file(user, file_path_1, 'issue content', message: 'message', branch_name: 'master') }
   let!(:file_2) { project.repository.create_file(user, file_path_2, 'merge request content', message: 'message', branch_name: 'master') }
 
+  describe '#index' do
+    before do
+      sign_in(user)
+    end
+
+    shared_examples 'templates request' do
+      it 'returns the templates' do
+        get(:index, params: { namespace_id: project.namespace, template_type: template_type, project_id: project }, format: :json)
+
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(json_response.size).to eq(1)
+        expect(json_response).to eq(expected_templates)
+      end
+
+      it 'fails for user with no access' do
+        other_user = create(:user)
+        sign_in(other_user)
+
+        get(:index, params: { namespace_id: project.namespace, template_type: template_type, project_id: project }, format: :json)
+
+        expect(response).to have_gitlab_http_status(:not_found)
+      end
+    end
+
+    context 'when querying for issue templates' do
+      it_behaves_like 'templates request' do
+        let(:template_type) { 'issue' }
+        let(:expected_templates) { [ { key: "template1", name: "template_1", content: "This is template 1!" } ] }
+      end
+    end
+
+    context 'when querying for merge_request templates' do
+      it_behaves_like 'templates request' do
+        let(:template_type) { 'merge_request' }
+        let(:expected_templates) { [ { key: "template1", name: "template_1", content: "This is template 1!" } ] }
+      end
+    end
+  end
+
   describe '#show' do
     shared_examples 'renders issue templates as json' do
       it do

spec/frontend/api_spec.js

@@ -570,6 +570,28 @@ describe('Api', () => {
     });
   });
 
+  describe('issueTemplates', () => {
+    it('fetches all templates by type', done => {
+      const namespace = 'some namespace';
+      const project = 'some project';
+      const templateType = 'template type';
+      const expectedUrl = `${dummyUrlRoot}/${namespace}/${project}/templates/${templateType}`;
+      const expectedData = [
+        { key: 'Template1', name: 'Template 1', content: 'This is template 1!' },
+      ];
+      mock.onGet(expectedUrl).reply(httpStatus.OK, expectedData);
+
+      Api.issueTemplates(namespace, project, templateType, (error, response) => {
+        expect(response.length).toBe(1);
+        const { key, name, content } = response[0];
+        expect(key).toBe('Template1');
+        expect(name).toBe('Template 1');
+        expect(content).toBe('This is template 1!');
+        done();
+      });
+    });
+  });
+
   describe('projectTemplates', () => {
     it('fetches a list of templates', done => {
       const expectedUrl = `${dummyUrlRoot}/api/${dummyApiVersion}/projects/gitlab-org%2Fgitlab-ce/templates/licenses`;

spec/frontend/static_site_editor/components/edit_meta_modal_spec.js

 import { shallowMount } from '@vue/test-utils';
 import { GlModal } from '@gitlab/ui';
 import { useLocalStorageSpy } from 'helpers/local_storage_helper';
+import MockAdapter from 'axios-mock-adapter';
+import axios from '~/lib/utils/axios_utils';
 import LocalStorageSync from '~/vue_shared/components/local_storage_sync.vue';
 import EditMetaModal from '~/static_site_editor/components/edit_meta_modal.vue';
 import EditMetaControls from '~/static_site_editor/components/edit_meta_controls.vue';
 import { MR_META_LOCAL_STORAGE_KEY } from '~/static_site_editor/constants';
-import { sourcePath, mergeRequestMeta, mergeRequestTemplates } from '../mock_data';
+import {
+  sourcePath,
+  mergeRequestMeta,
+  mergeRequestTemplates,
+  project as namespaceProject,
+} from '../mock_data';
 
 describe('~/static_site_editor/components/edit_meta_modal.vue', () => {
   useLocalStorageSpy();
 
   let wrapper;
-  let resetCachedEditable;
-  let mockEditMetaControlsInstance;
+  let mockAxios;
   const { title, description } = mergeRequestMeta;
+  const [namespace, project] = namespaceProject.split('/');
 
   const buildWrapper = (propsData = {}, data = {}) => {
     wrapper = shallowMount(EditMetaModal, {
       propsData: {
         sourcePath,
+        namespace,
+        project,
         ...propsData,
       },
       data: () => data,
     });
   };
 
-  const buildMocks = () => {
-    resetCachedEditable = jest.fn();
-    mockEditMetaControlsInstance = { resetCachedEditable };
-    wrapper.vm.$refs.editMetaControls = mockEditMetaControlsInstance;
+  const buildMockAxios = () => {
+    mockAxios = new MockAdapter(axios);
+    mockAxios
+      .onGet(`${namespace}/${project}/templates/merge_request`)
+      .reply(200, mergeRequestTemplates);
+  };
+
+  const buildMockRefs = () => {
+    wrapper.vm.$refs.editMetaControls = { resetCachedEditable: jest.fn() };
   };
 
   const findGlModal = () => wrapper.find(GlModal);
@@ -37,16 +51,17 @@ describe('~/static_site_editor/components/edit_meta_modal.vue', () => {
 
   beforeEach(() => {
     localStorage.setItem(MR_META_LOCAL_STORAGE_KEY);
-  });
 
-  beforeEach(() => {
+    buildMockAxios();
     buildWrapper();
-    buildMocks();
+    buildMockRefs();
 
     return wrapper.vm.$nextTick();
   });
 
   afterEach(() => {
+    mockAxios.restore();
+
     wrapper.destroy();
     wrapper = null;
   });