test unit: d2-module-index-menu

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tests/unit/d2-module-index-menu.spec.js

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+import { mount } from '@vue/test-utils'
+import D2ModuleIndexMenu from '@/components/d2-module-index-menu/index.vue'
+import menu from '@/menu/modules/demo-business'
+
+describe('d2-module-index-menu', () => {
+  // 存在且是Vue组件实例
+  it('is a vue instance', () => {
+    const wrapper = mount(D2ModuleIndexMenu, {
+      stubs: ['el-button'],
+      propsData: {
+        menu
+      }
+    })
+
+    expect(wrapper.exists()).toBeTruthy()
+    expect(wrapper.isVueInstance()).toBeTruthy()
+  })
+
+  // 300m后正确渲染，包含特定类名
+  it('contains specific classnames', (done) => {
+    const wrapper = mount(D2ModuleIndexMenu, {
+      stubs: ['el-button'],
+      propsData: {
+        menu: menu
+      }
+    })
+
+    setTimeout(() => {  
+      expect(wrapper.is('.d2-module-index-menu')).toBeTruthy()
+      expect(wrapper.contains('.d2-module-index-menu-group')).toBeTruthy()
+      expect(wrapper.contains('.d2-module-index-menu-group--title')).toBeTruthy()
+      expect(wrapper.contains('.d2-module-index-menu-item')).toBeTruthy()
+      done()
+    }, 400)
+  })
+})