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    <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg> <span class="sr-only">(opens new window)</span></span></a></nav>  <ul class="sidebar-links"><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>初识 TypeScript</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>TypeScript 常用语法</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 项目初始化</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 基础功能实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 异常情况处理</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 接口扩展</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 拦截器实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 配置化实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 取消功能实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 更多功能实现</span> <span class="arrow right"></span></p> <!----></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading open"><span>ts-axios 单元测试</span> <span class="arrow down"></span></p> <ul class="sidebar-links sidebar-group-items"><li><a href="/blog/pages/df36888424843793/" class="sidebar-link">前言</a></li><li><a href="/blog/pages/bf5c625a35757b37/" class="sidebar-link">Jest 安装和配置</a></li><li><a href="/blog/pages/13f147a9b355c4c1/" class="sidebar-link">辅助模块单元测试</a></li><li><a href="/blog/pages/e1d15dec8634e6b5/" class="sidebar-link">请求模块单元测试</a></li><li><a href="/blog/pages/ddd86ec39b5dfe33/" class="sidebar-link">headers 模块单元测试</a></li><li><a href="/blog/pages/2eac7a0a0d644c15/" aria-current="page" class="active sidebar-link">Axios 实例模块单元测试</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header level2"><a href="/blog/pages/2eac7a0a0d644c15/#测试代码编写" class="sidebar-link">测试代码编写</a></li></ul></li><li><a href="/blog/pages/97de6fd6293a2c6e/" class="sidebar-link">拦截器模块单元测试</a></li><li><a href="/blog/pages/cdf59840306f9e81/" class="sidebar-link">mergeConfig 模块单元测试</a></li><li><a href="/blog/pages/6fa16aee29527032/" class="sidebar-link">请求取消模块单元测试</a></li><li><a href="/blog/pages/9572134781ba6a25/" class="sidebar-link">剩余模块单元测试</a></li></ul></section></li><li><section class="sidebar-group collapsable depth-0"><p class="sidebar-heading"><span>ts-axios 部署与发布</span> <span class="arrow right"></span></p> <!----></section></li></ul> </aside> <div><main class="page"><div class="theme-vdoing-wrapper "><div class="articleInfo-wrap" data-v-06970110><div class="articleInfo" data-v-06970110><ul class="breadcrumbs" data-v-06970110><li data-v-06970110><a href="/blog/" title="首页" class="iconfont icon-home router-link-active" data-v-06970110></a></li> <li data-v-06970110><a href="/blog/note/typescript-axios/#《TypeScript 从零实现 axios》" data-v-06970110>《TypeScript 从零实现 axios》</a></li><li data-v-06970110><a href="/blog/note/typescript-axios/#ts-axios 单元测试" data-v-06970110>ts-axios 单元测试</a></li></ul> <div class="info" data-v-06970110><div title="作者" class="author iconfont icon-touxiang" data-v-06970110><a href="javascript:;" data-v-06970110>HuangYi</a></div> <div title="创建时间" class="date iconfont icon-riqi" data-v-06970110><a href="javascript:;" data-v-06970110>2020-01-05</a></div> <!----></div></div></div> <!----> <div class="content-wrapper"><div class="right-menu-wrapper"><div class="right-menu-margin"><div class="right-menu-title">目录</div> <div class="right-menu-content"></div></div></div> <h1><img src="data:image/png;base64,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">Axios 实例模块单元测试<!----></h1>  <div class="theme-vdoing-content content__default"><h1 id="axios-实例模块单元测试"><a href="#axios-实例模块单元测试" class="header-anchor">#</a> Axios 实例模块单元测试</h1> <p><code>ts-axios</code> 提供了 <code>axios.create</code> 静态方法，返回一个 <code>instance</code> 实例，我们需要对这个模块做测试。</p> <h2 id="测试代码编写"><a href="#测试代码编写" class="header-anchor">#</a> 测试代码编写</h2> <p><code>test/instance.spec.ts</code>：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">import</span> axios<span class="token punctuation">,</span> <span class="token punctuation">{</span> AxiosRequestConfig<span class="token punctuation">,</span> AxiosResponse <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'../src/index'</span>
<span class="token keyword">import</span> <span class="token punctuation">{</span> getAjaxRequest <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'./helper'</span>

<span class="token function">describe</span><span class="token punctuation">(</span><span class="token string">'instance'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
  <span class="token function">beforeEach</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    jasmine<span class="token punctuation">.</span>Ajax<span class="token punctuation">.</span><span class="token function">install</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">afterEach</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    jasmine<span class="token punctuation">.</span>Ajax<span class="token punctuation">.</span><span class="token function">uninstall</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should make a http request without verb helper'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    <span class="token function">instance</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>url<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should make a http request'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>url<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>method<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'GET'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should make a post request'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span><span class="token function">post</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>method<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'POST'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should make a put request'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span><span class="token function">put</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>method<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'PUT'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should make a patch request'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span><span class="token function">patch</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>method<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'PATCH'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should make a options request'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span><span class="token function">options</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>method<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'OPTIONS'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should make a delete request'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span><span class="token function">delete</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>method<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'DELETE'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should make a head request'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span><span class="token function">head</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>method<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'HEAD'</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should use instance options'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">{</span> timeout<span class="token operator">:</span> <span class="token number">1000</span> <span class="token punctuation">}</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>

    <span class="token keyword">return</span> <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>timeout<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token number">1000</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should have defaults.headers'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">{</span> baseURL<span class="token operator">:</span> <span class="token string">'https://api.example.com'</span> <span class="token punctuation">}</span><span class="token punctuation">)</span>

    <span class="token function">expect</span><span class="token punctuation">(</span><span class="token keyword">typeof</span> instance<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>headers<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'object'</span><span class="token punctuation">)</span>
    <span class="token function">expect</span><span class="token punctuation">(</span><span class="token keyword">typeof</span> instance<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>headers<span class="token punctuation">.</span>common<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span><span class="token string">'object'</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should have interceptors on the instance'</span><span class="token punctuation">,</span> done <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    axios<span class="token punctuation">.</span>interceptors<span class="token punctuation">.</span>request<span class="token punctuation">.</span><span class="token function">use</span><span class="token punctuation">(</span>config <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      config<span class="token punctuation">.</span>timeout <span class="token operator">=</span> <span class="token number">2000</span>
      <span class="token keyword">return</span> config
    <span class="token punctuation">}</span><span class="token punctuation">)</span>

    <span class="token keyword">const</span> instance <span class="token operator">=</span> axios<span class="token punctuation">.</span><span class="token function">create</span><span class="token punctuation">(</span><span class="token punctuation">)</span>

    instance<span class="token punctuation">.</span>interceptors<span class="token punctuation">.</span>request<span class="token punctuation">.</span><span class="token function">use</span><span class="token punctuation">(</span>config <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      config<span class="token punctuation">.</span>withCredentials <span class="token operator">=</span> <span class="token boolean">true</span>
      <span class="token keyword">return</span> config
    <span class="token punctuation">}</span><span class="token punctuation">)</span>

    <span class="token keyword">let</span> response<span class="token operator">:</span> AxiosResponse
    instance<span class="token punctuation">.</span><span class="token function">get</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>res <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      response <span class="token operator">=</span> res
    <span class="token punctuation">}</span><span class="token punctuation">)</span>

    <span class="token function">getAjaxRequest</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>request <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
      request<span class="token punctuation">.</span><span class="token function">respondWith</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
        status<span class="token operator">:</span> <span class="token number">200</span>
      <span class="token punctuation">}</span><span class="token punctuation">)</span>

      <span class="token function">setTimeout</span><span class="token punctuation">(</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
        <span class="token function">expect</span><span class="token punctuation">(</span>response<span class="token punctuation">.</span>config<span class="token punctuation">.</span>timeout<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toEqual</span><span class="token punctuation">(</span><span class="token number">0</span><span class="token punctuation">)</span>
        <span class="token function">expect</span><span class="token punctuation">(</span>response<span class="token punctuation">.</span>config<span class="token punctuation">.</span>withCredentials<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toEqual</span><span class="token punctuation">(</span><span class="token boolean">true</span><span class="token punctuation">)</span>
        <span class="token function">done</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
      <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token number">100</span><span class="token punctuation">)</span>
    <span class="token punctuation">}</span><span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>

  <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should get the computed uri'</span><span class="token punctuation">,</span> <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    <span class="token keyword">const</span> fakeConfig<span class="token operator">:</span> AxiosRequestConfig <span class="token operator">=</span> <span class="token punctuation">{</span>
      baseURL<span class="token operator">:</span> <span class="token string">'https://www.baidu.com/'</span><span class="token punctuation">,</span>
      url<span class="token operator">:</span> <span class="token string">'/user/12345'</span><span class="token punctuation">,</span>
      params<span class="token operator">:</span> <span class="token punctuation">{</span>
        idClient<span class="token operator">:</span> <span class="token number">1</span><span class="token punctuation">,</span>
        idTest<span class="token operator">:</span> <span class="token number">2</span><span class="token punctuation">,</span>
        testString<span class="token operator">:</span> <span class="token string">'thisIsATest'</span>
      <span class="token punctuation">}</span>
    <span class="token punctuation">}</span>
    <span class="token function">expect</span><span class="token punctuation">(</span>axios<span class="token punctuation">.</span><span class="token function">getUri</span><span class="token punctuation">(</span>fakeConfig<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBe</span><span class="token punctuation">(</span>
      <span class="token string">'https://www.baidu.com/user/12345?idClient=1&amp;idTest=2&amp;testString=thisIsATest'</span>
    <span class="token punctuation">)</span>
  <span class="token punctuation">}</span><span class="token punctuation">)</span>
<span class="token punctuation">}</span><span class="token punctuation">)</span>
</code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span 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class="line-number">100</span><br><span class="line-number">101</span><br><span class="line-number">102</span><br><span class="line-number">103</span><br><span class="line-number">104</span><br><span class="line-number">105</span><br><span class="line-number">106</span><br><span class="line-number">107</span><br><span class="line-number">108</span><br><span class="line-number">109</span><br><span class="line-number">110</span><br><span class="line-number">111</span><br><span class="line-number">112</span><br><span class="line-number">113</span><br><span class="line-number">114</span><br><span class="line-number">115</span><br><span class="line-number">116</span><br><span class="line-number">117</span><br><span class="line-number">118</span><br><span class="line-number">119</span><br><span class="line-number">120</span><br><span class="line-number">121</span><br><span class="line-number">122</span><br><span class="line-number">123</span><br><span class="line-number">124</span><br><span class="line-number">125</span><br><span class="line-number">126</span><br><span class="line-number">127</span><br><span class="line-number">128</span><br><span class="line-number">129</span><br><span class="line-number">130</span><br><span class="line-number">131</span><br><span class="line-number">132</span><br><span class="line-number">133</span><br><span class="line-number">134</span><br><span class="line-number">135</span><br><span class="line-number">136</span><br><span class="line-number">137</span><br><span class="line-number">138</span><br><span class="line-number">139</span><br><span class="line-number">140</span><br><span class="line-number">141</span><br><span class="line-number">142</span><br><span class="line-number">143</span><br><span class="line-number">144</span><br><span class="line-number">145</span><br><span class="line-number">146</span><br><span class="line-number">147</span><br><span class="line-number">148</span><br><span class="line-number">149</span><br><span class="line-number">150</span><br><span class="line-number">151</span><br><span class="line-number">152</span><br><span class="line-number">153</span><br><span class="line-number">154</span><br><span class="line-number">155</span><br><span class="line-number">156</span><br></div></div><p>至此我们完成了 <code>ts-axios</code> 库 <code>Axios</code> 实例模块相关业务逻辑的测试，下一节课我们会对拦截器模块做测试。</p></div></div>  <div class="page-edit"><div class="edit-link"><a href="https://github.com/heBody/blog/edit/master/docs/《TypeScript 从零实现 axios》/11.ts-axios 单元测试/06.Axios 实例模块单元测试.md" target="_blank" rel="noopener noreferrer">编辑</a> <span><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewBox="0 0 100 100" width="15" height="15" class="icon outbound"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path> <polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 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