Add mock-server setup

* Adds settings to jest-config
* Adds mockdata and routes

ee/spec/frontend_integration/test_helpers/mock_data/vulnerabilities_mock_data.js

+export const mockIssueLink = {
+  assignee: null,
+  assignees: [],
+  author: { id: 1, name: 'Administrator', username: 'container', state: 'active' },
+  blocking_issues_count: 0,
+  closed_at: null,
+  closed_by: null,
+  confidential: true,
+  created_at: '2021-01-10T23:17:23.385Z',
+  description: 'description',
+  discussion_locked: null,
+  downvotes: 0,
+  due_date: null,
+  id: 501,
+  iid: 12,
+  labels: [],
+  merge_requests_count: 0,
+  milestone: null,
+  project_id: 23,
+  state: 'opened',
+  task_completion_status: { count: 0, completed_count: 0 },
+  time_stats: {
+    time_estimate: 0,
+    total_time_spent: 0,
+    human_time_estimate: null,
+    human_total_time_spent: null,
+  },
+  title: 'Investigate vulnerability: Improper Input Validation in xterm',
+  updated_at: '2021-01-10T23:17:23.385Z',
+  upvotes: 0,
+  user_notes_count: 0,
+  vulnerability_link_id: 53,
+  vulnerability_link_type: 'created',
+  web_url: 'http://gdk.test:3000/security-reports/dependency-list-test/-/issues/12',
+  weight: null,
+};

ee/spec/frontend_integration/test_helpers/mock_server/routes/index.js

+import defaultRoutes from 'test_helpers/mock_server/routes';
+
+/* eslint-disable global-require */
+export default (server) => {
+  [require('./vulnerabilities')].forEach(({ default: setup }) => {
+    setup(server);
+  });
+
+  defaultRoutes(server);
+};

ee/spec/frontend_integration/test_helpers/mock_server/routes/vulnerabilities.js

+import { mockIssueLink } from '../../mock_data/vulnerabilities_mock_data';
+
+export default (server) => {
+  server.get('/api/v4/vulnerabilities/:id/issue_links', () => [mockIssueLink]);
+};

ee/spec/frontend_integration/vulnerabilities/mock_data.js

@@ -13,40 +13,3 @@ export const mockVulnerability = {
     full_path: '/project_full_path',
   },
 };
-
-export const mockIssueLink = {
-  assignee: null,
-  assignees: [],
-  author: { id: 1, name: 'Administrator', username: 'container', state: 'active' },
-  blocking_issues_count: 0,
-  closed_at: null,
-  closed_by: null,
-  confidential: true,
-  created_at: '2021-01-10T23:17:23.385Z',
-  description: 'description',
-  discussion_locked: null,
-  downvotes: 0,
-  due_date: null,
-  id: 501,
-  iid: 12,
-  labels: [],
-  merge_requests_count: 0,
-  milestone: null,
-  project_id: 23,
-  state: 'opened',
-  task_completion_status: { count: 0, completed_count: 0 },
-  time_stats: {
-    time_estimate: 0,
-    total_time_spent: 0,
-    human_time_estimate: null,
-    human_total_time_spent: null,
-  },
-  title: 'Investigate vulnerability: Improper Input Validation in xterm',
-  updated_at: '2021-01-10T23:17:23.385Z',
-  upvotes: 0,
-  user_notes_count: 0,
-  vulnerability_link_id: 53,
-  vulnerability_link_type: 'created',
-  web_url: 'http://gdk.test:3000/security-reports/dependency-list-test/-/issues/12',
-  weight: null,
-};

ee/spec/frontend_integration/vulnerabilities/mock_routes.js

-import { mockIssueLink } from './mock_data';
-
-export const createIssueLinksRoute = () => {
-  mockServer.get('/api/v4/vulnerabilities/:id/issue_links', () => [mockIssueLink]);
-};

jest.config.base.js

@@ -45,7 +45,8 @@ module.exports = (path) => {
     'emojis(/.*).json': '<rootDir>/fixtures/emojis$1.json',
     '^spec/test_constants$': '<rootDir>/spec/frontend/__helpers__/test_constants',
     '^jest/(.*)$': '<rootDir>/spec/frontend/$1',
-    'test_helpers(/.*)$': '<rootDir>/spec/frontend_integration/test_helpers$1',
+    '^test_helpers(/.*)$': '<rootDir>/spec/frontend_integration/test_helpers$1',
+    '^ee_else_ce_test_helpers(/.*)$': '<rootDir>/spec/frontend_integration/test_helpers$1',
   };
 
   const collectCoverageFrom = ['<rootDir>/app/assets/javascripts/**/*.{js,vue}'];
@@ -56,6 +57,7 @@ module.exports = (path) => {
       '^ee(/.*)$': rootDirEE,
       '^ee_component(/.*)$': rootDirEE,
       '^ee_else_ce(/.*)$': rootDirEE,
+      '^ee_else_ce_test_helpers(/.*)$': '<rootDir>/ee/spec/frontend_integration/test_helpers$1',
       '^ee_jest/(.*)$': '<rootDir>/ee/spec/frontend/$1',
       [TEST_FIXTURES_PATTERN]: '<rootDir>/tmp/tests/frontend/fixtures-ee$1',
     });

spec/frontend_integration/test_helpers/mock_server/index.js

 import { Server, Model, RestSerializer } from 'miragejs';
+import setupRoutes from 'ee_else_ce_test_helpers/mock_server/routes';
 import {
   getProject,
   getEmptyProject,
@@ -11,7 +12,6 @@ import {
   getBlobImage,
   getBlobZip,
 } from 'test_helpers/fixtures';
-import setupRoutes from './routes';
 
 export const createMockServerOptions = () => ({
   models: {

spec/frontend_integration/test_helpers/setup/index.js

@@ -4,4 +4,3 @@ import './setup_axios';
 import './setup_serializers';
 import './setup_mock_server';
 import './setup_testing_library';
-import './setup_jest_dom';