Move rest of boards_store_spec to Jest

Also moves the data parts of the mock_data

**Why?**
https://gitlab.com/gitlab-org/gitlab/merge_requests/16336

spec/frontend/boards/mock_data.js

+export const boardObj = {
+  id: 1,
+  name: 'test',
+  milestone_id: null,
+};
+
+export const listObj = {
+  id: 300,
+  position: 0,
+  title: 'Test',
+  list_type: 'label',
+  weight: 3,
+  label: {
+    id: 5000,
+    title: 'Test',
+    color: 'red',
+    description: 'testing;',
+    textColor: 'white',
+  },
+};
+
+export const listObjDuplicate = {
+  id: listObj.id,
+  position: 1,
+  title: 'Test',
+  list_type: 'label',
+  weight: 3,
+  label: {
+    id: listObj.label.id,
+    title: 'Test',
+    color: 'red',
+    description: 'testing;',
+  },
+};
+
+export const mockAssigneesList = [
+  {
+    id: 2,
+    name: 'Terrell Graham',
+    username: 'monserrate.gleichner',
+    state: 'active',
+    avatar_url: 'https://www.gravatar.com/avatar/598fd02741ac58b88854a99d16704309?s=80&d=identicon',
+    web_url: 'http://127.0.0.1:3001/monserrate.gleichner',
+    path: '/monserrate.gleichner',
+  },
+  {
+    id: 12,
+    name: 'Susy Johnson',
+    username: 'tana_harvey',
+    state: 'active',
+    avatar_url: 'https://www.gravatar.com/avatar/e021a7b0f3e4ae53b5068d487e68c031?s=80&d=identicon',
+    web_url: 'http://127.0.0.1:3001/tana_harvey',
+    path: '/tana_harvey',
+  },
+  {
+    id: 20,
+    name: 'Conchita Eichmann',
+    username: 'juliana_gulgowski',
+    state: 'active',
+    avatar_url: 'https://www.gravatar.com/avatar/c43c506cb6fd7b37017d3b54b94aa937?s=80&d=identicon',
+    web_url: 'http://127.0.0.1:3001/juliana_gulgowski',
+    path: '/juliana_gulgowski',
+  },
+  {
+    id: 6,
+    name: 'Bryce Turcotte',
+    username: 'melynda',
+    state: 'active',
+    avatar_url: 'https://www.gravatar.com/avatar/cc2518f2c6f19f8fac49e1a5ee092a9b?s=80&d=identicon',
+    web_url: 'http://127.0.0.1:3001/melynda',
+    path: '/melynda',
+  },
+  {
+    id: 1,
+    name: 'Administrator',
+    username: 'root',
+    state: 'active',
+    avatar_url: 'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
+    web_url: 'http://127.0.0.1:3001/root',
+    path: '/root',
+  },
+];
+
+export const mockMilestone = {
+  id: 1,
+  state: 'active',
+  title: 'Milestone title',
+  description: 'Harum corporis aut consequatur quae dolorem error sequi quia.',
+  start_date: '2018-01-01',
+  due_date: '2019-12-31',
+};

spec/javascripts/boards/mock_data.js

 import boardsStore from '~/boards/stores/boards_store';
+import { listObj } from '../../frontend/boards/mock_data';
 
-export const setMockEndpoints = (opts = {}) => {
-  const boardsEndpoint = opts.boardsEndpoint || '/test/issue-boards/-/boards.json';
-  const listsEndpoint = opts.listsEndpoint || '/test/-/boards/1/lists';
-  const bulkUpdatePath = opts.bulkUpdatePath || '';
-  const boardId = opts.boardId || '1';
-
-  boardsStore.setEndpoints({
-    boardsEndpoint,
-    listsEndpoint,
-    bulkUpdatePath,
-    boardId,
-  });
-};
-
-export const boardObj = {
-  id: 1,
-  name: 'test',
-  milestone_id: null,
-};
-
-export const listObj = {
-  id: 300,
-  position: 0,
-  title: 'Test',
-  list_type: 'label',
-  weight: 3,
-  label: {
-    id: 5000,
-    title: 'Test',
-    color: 'red',
-    description: 'testing;',
-    textColor: 'white',
-  },
-};
-
-export const listObjDuplicate = {
-  id: listObj.id,
-  position: 1,
-  title: 'Test',
-  list_type: 'label',
-  weight: 3,
-  label: {
-    id: listObj.label.id,
-    title: 'Test',
-    color: 'red',
-    description: 'testing;',
-  },
-};
+export * from '../../frontend/boards/mock_data';
 
 export const BoardsMockData = {
   GET: {
@@ -86,59 +40,16 @@ export const boardsMockInterceptor = config => {
   return [200, body];
 };
 
-export const mockAssigneesList = [
-  {
-    id: 2,
-    name: 'Terrell Graham',
-    username: 'monserrate.gleichner',
-    state: 'active',
-    avatar_url: 'https://www.gravatar.com/avatar/598fd02741ac58b88854a99d16704309?s=80&d=identicon',
-    web_url: 'http://127.0.0.1:3001/monserrate.gleichner',
-    path: '/monserrate.gleichner',
-  },
-  {
-    id: 12,
-    name: 'Susy Johnson',
-    username: 'tana_harvey',
-    state: 'active',
-    avatar_url: 'https://www.gravatar.com/avatar/e021a7b0f3e4ae53b5068d487e68c031?s=80&d=identicon',
-    web_url: 'http://127.0.0.1:3001/tana_harvey',
-    path: '/tana_harvey',
-  },
-  {
-    id: 20,
-    name: 'Conchita Eichmann',
-    username: 'juliana_gulgowski',
-    state: 'active',
-    avatar_url: 'https://www.gravatar.com/avatar/c43c506cb6fd7b37017d3b54b94aa937?s=80&d=identicon',
-    web_url: 'http://127.0.0.1:3001/juliana_gulgowski',
-    path: '/juliana_gulgowski',
-  },
-  {
-    id: 6,
-    name: 'Bryce Turcotte',
-    username: 'melynda',
-    state: 'active',
-    avatar_url: 'https://www.gravatar.com/avatar/cc2518f2c6f19f8fac49e1a5ee092a9b?s=80&d=identicon',
-    web_url: 'http://127.0.0.1:3001/melynda',
-    path: '/melynda',
-  },
-  {
-    id: 1,
-    name: 'Administrator',
-    username: 'root',
-    state: 'active',
-    avatar_url: 'https://www.gravatar.com/avatar/e64c7d89f26bd1972efa854d13d7dd61?s=80&d=identicon',
-    web_url: 'http://127.0.0.1:3001/root',
-    path: '/root',
-  },
-];
+export const setMockEndpoints = (opts = {}) => {
+  const boardsEndpoint = opts.boardsEndpoint || '/test/issue-boards/-/boards.json';
+  const listsEndpoint = opts.listsEndpoint || '/test/-/boards/1/lists';
+  const bulkUpdatePath = opts.bulkUpdatePath || '';
+  const boardId = opts.boardId || '1';
 
-export const mockMilestone = {
-  id: 1,
-  state: 'active',
-  title: 'Milestone title',
-  description: 'Harum corporis aut consequatur quae dolorem error sequi quia.',
-  start_date: '2018-01-01',
-  due_date: '2019-12-31',
+  boardsStore.setEndpoints({
+    boardsEndpoint,
+    listsEndpoint,
+    bulkUpdatePath,
+    boardId,
+  });
 };