<p>我试图理解用 Vitest 模拟 Vue-Router 的逻辑。</p> <p>为此，我尝试在一个非常简单的项目上设置并模拟我的测试环境。当我尝试按照Vue-Test-Utils的官方文档进行操作时，总是出现错误。我不知道是不是因为他们使用 Jest。</p> <p>使用真正的 vue-router 解决了我的问题，但我认为模拟 vue-router 更好。</p> <p>下面我先传达一下项目的源码，然后是我收到的错误。</p> <h3>首页.vue</h3> <pre class="brush:php;toolbar:false;">&lt;script setup lang=&quot;ts&quot;&gt; import {onMounted} from &quot;vue&quot;; import {useRoute} from &quot;vue-router&quot;; const route = useRoute() onMounted(() =&gt; { console.log(route.query) }) &lt;/script&gt; &lt;template&gt; &lt;div&gt;Home&lt;/div&gt; &lt;/template&gt;</pre> <h3>首页.spec.ts</h3> <pre class="brush:php;toolbar:false;">import {expect, it, vi} from &quot;vitest&quot;; import {mount} from &quot;@vue/test-utils&quot;; import Home from &quot;../src/components/Home.vue&quot; it('Home Test', async () =&gt; { const wrapper = mount(Home) expect(wrapper.exists()).toBeTruthy() })</pre> <h3>vite.config.ts</h3> <pre class="brush:php;toolbar:false;">/// &lt;reference types=&quot;vitest&quot; /&gt; import { defineConfig } from 'vite' import vue from '@vitejs/plugin-vue' // https://vitejs.dev/config/ export default defineConfig({ plugins: [vue()], test: { environment: 'jsdom', include: ['./test/**/*.spec.ts'], exclude: ['node_modules', 'dist'], globals: true } })</pre> <h3>我的错误消息如下：..</h3> <h3>我尝试过的方法</h3> <p>我尝试像下面这样模拟 vue-router</p> <pre class="brush:php;toolbar:false;">vi.mock('vue-router', () =&gt; ({ useRoute: vi.fn(), }))</pre> <p>或者只是</p> <pre class="brush:php;toolbar:false;">vi.mock('vue-router')</pre> <h4>这是我的最终 Home.spec.ts 文件</h4> <pre class="brush:php;toolbar:false;">import {expect, it, vi} from &quot;vitest&quot;; import {mount} from &quot;@vue/test-utils&quot;; import Home from &quot;../src/components/Home.vue&quot; vi.mock('vue-router') it('Home Test', async () =&gt; { const wrapper = mount(Home, { global: { stubs: [&quot;router-link&quot;, &quot;router-view&quot;] } }) expect(wrapper.exists()).toBeTruthy() })</pre></p>

<script setup lang="ts">
import { onMounted } from 'vue';
import { useRoute } from 'vue-router';

const route = useRoute();

onMounted(() => {
  console.log(route.query);
});
</script>

<template>
  <router-link to="home">Go to home</router-link>
  <router-view />
</template>

import { expect, it, vi } from 'vitest';
import { mount } from '@vue/test-utils';
import * as VueRouter from 'vue-router';
import Home from '../src/components/Home.vue';

describe('./path/to/Home.vue', () => {
  const useRouteSpy = vi.spyOn(VueRouter, 'useRoute');
  const getWrapper = () => mount(Home as any, {
    global: {
      stubs: {
        'router-link': { template: '<div/>' },
        'router-view': { template: '<div/>' },
      },
    },
  });

  it('the component should be mounted', () => {
    // ARRANGE
    const useRouteMock = useRouteSpy.mockImplementationOnce({ query: 'query' });
    // ACT
    const wrapper = getWrapper();
    // ASSERT
    expect(useRouteMock).toHaveBeenCalled();
    expect(wrapper.exists()).toBeTruthy();
  });
});