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  25.     <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/" class="sidebar-link">Axios 实例模块单元测试</a></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/" aria-current="page" class="active sidebar-link">剩余模块单元测试</a><ul class="sidebar-sub-headers"><li class="sidebar-sub-header level2"><a href="/blog/pages/9572134781ba6a25/#defaults-模块单元测试" class="sidebar-link">defaults 模块单元测试</a></li><li class="sidebar-sub-header level2"><a href="/blog/pages/9572134781ba6a25/#transform-模块单元测试" class="sidebar-link">transform 模块单元测试</a></li><li class="sidebar-sub-header level2"><a href="/blog/pages/9572134781ba6a25/#xsrf-模块单元测试" class="sidebar-link">xsrf 模块单元测试</a></li><li class="sidebar-sub-header level2"><a href="/blog/pages/9572134781ba6a25/#上传下载模块单元测试" class="sidebar-link">上传下载模块单元测试</a></li><li class="sidebar-sub-header level2"><a href="/blog/pages/9572134781ba6a25/#http-授权模块单元测试" class="sidebar-link">HTTP 授权模块单元测试</a></li><li class="sidebar-sub-header level2"><a href="/blog/pages/9572134781ba6a25/#静态方法模块单元测试" class="sidebar-link">静态方法模块单元测试</a></li><li class="sidebar-sub-header level2"><a href="/blog/pages/9572134781ba6a25/#补充未覆盖的代码测试" class="sidebar-link">补充未覆盖的代码测试</a></li></ul></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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">剩余模块单元测试<!----></h1>  <div class="theme-vdoing-content content__default"><h1 id="剩余模块单元测试"><a href="#剩余模块单元测试" class="header-anchor">#</a> 剩余模块单元测试</h1> <h2 id="defaults-模块单元测试"><a href="#defaults-模块单元测试" class="header-anchor">#</a> defaults 模块单元测试</h2> <p><code>defaults</code> 模块为请求配置提供了一些默认的属性和方法，我们需要为其编写单元测试。</p> <p><code>test/defaults.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> AxiosTransformer <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'../src/index'</span>
    26. 

  26. <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>
    27. 

  27. <span class="token keyword">import</span> <span class="token punctuation">{</span> deepMerge <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'../src/helpers/util'</span>
    28. 

  28. 

  29. <span class="token function">describe</span><span class="token punctuation">(</span><span class="token string">'defaults'</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>
    30. 

  30.   <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>
    31. 

  31.     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>
    32. 

  32.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    33. 

  33. 

  34.   <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>
    35. 

  35.     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>
    36. 

  36.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    37. 

  37. 

  38.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should transform request json'</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>
    39. 

  39.     <span class="token function">expect</span><span class="token punctuation">(</span><span class="token punctuation">(</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>transformRequest <span class="token keyword">as</span> AxiosTransformer<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">(</span><span class="token punctuation">{</span> foo<span class="token operator">:</span> <span class="token string">'bar'</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">toBe</span><span class="token punctuation">(</span><span class="token string">'{&quot;foo&quot;:&quot;bar&quot;}'</span><span class="token punctuation">)</span>
    40. 

  40.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    41. 

  41. 

  42.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should do nothing to request string'</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>
    43. 

  43.     <span class="token function">expect</span><span class="token punctuation">(</span><span class="token punctuation">(</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>transformRequest <span class="token keyword">as</span> AxiosTransformer<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">(</span><span class="token string">'foo=bar'</span><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">'foo=bar'</span><span class="token punctuation">)</span>
    44. 

  44.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    45. 

  45. 

  46.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should transform response json'</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>
    47. 

  47.     <span class="token keyword">const</span> data <span class="token operator">=</span> <span class="token punctuation">(</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>transformResponse <span class="token keyword">as</span> AxiosTransformer<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">(</span><span class="token string">'{&quot;foo&quot;:&quot;bar&quot;}'</span><span class="token punctuation">)</span>
    48. 

  48. 

  49.     <span class="token function">expect</span><span class="token punctuation">(</span><span class="token keyword">typeof</span> data<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>
    50. 

  50.     <span class="token function">expect</span><span class="token punctuation">(</span>data<span class="token punctuation">.</span>foo<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">'bar'</span><span class="token punctuation">)</span>
    51. 

  51.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    52. 

  52. 

  53.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should do nothing to response string'</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>
    54. 

  54.     <span class="token function">expect</span><span class="token punctuation">(</span><span class="token punctuation">(</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>transformResponse <span class="token keyword">as</span> AxiosTransformer<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">(</span><span class="token string">'foo=bar'</span><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">'foo=bar'</span><span class="token punctuation">)</span>
    55. 

  55.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    56. 

  56. 

  57.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should use global defaults config'</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>
    58. 

  58.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>
    59. 

  59. 

  60.     <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>
    61. 

  61.       <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>
    62. 

  62.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    63. 

  63.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    64. 

  64. 

  65.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should use modified defaults config'</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>
    66. 

  66.     axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>baseURL <span class="token operator">=</span> <span class="token string">'http://example.com/'</span>
    67. 

  67. 

  68.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>
    69. 

  69. 

  70.     <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>
    71. 

  71.       <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">'http://example.com/foo'</span><span class="token punctuation">)</span>
    72. 

  72.       <span class="token keyword">delete</span> axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>baseURL
    73. 

  73.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    74. 

  74.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    75. 

  75. 

  76.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should use request config'</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>
    77. 

  77.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>
    78. 

  78.       baseURL<span class="token operator">:</span> <span class="token string">'http://www.example.com'</span>
    79. 

  79.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    80. 

  80. 

  81.     <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>
    82. 

  82.       <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">'http://www.example.com/foo'</span><span class="token punctuation">)</span>
    83. 

  83.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    84. 

  84.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    85. 

  85. 

  86.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should use default config for custom 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>
    87. 

  87.     <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>
    88. 

  88.       xsrfCookieName<span class="token operator">:</span> <span class="token string">'CUSTOM-XSRF-TOKEN'</span><span class="token punctuation">,</span>
    89. 

  89.       xsrfHeaderName<span class="token operator">:</span> <span class="token string">'X-CUSTOM-XSRF-TOKEN'</span>
    90. 

  90.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    91. 

  91.     document<span class="token punctuation">.</span>cookie <span class="token operator">=</span> instance<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfCookieName <span class="token operator">+</span> <span class="token string">'=foobarbaz'</span>
    92. 

  92. 

  93.     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>
    94. 

  94. 

  95.     <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>
    96. 

  96.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span>instance<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfHeaderName<span class="token operator">!</span><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">'foobarbaz'</span><span class="token punctuation">)</span>
    97. 

  97.       document<span class="token punctuation">.</span>cookie <span class="token operator">=</span>
    98. 

  98.         instance<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfCookieName <span class="token operator">+</span>
    99. 

  99.         <span class="token string">'=;expires='</span> <span class="token operator">+</span>
    100. 

  100.         <span class="token keyword">new</span> <span class="token class-name">Date</span><span class="token punctuation">(</span>Date<span class="token punctuation">.</span><span class="token function">now</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">-</span> <span class="token number">86400000</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toUTCString</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    101. 

  101.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    102. 

  102.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    103. 

  103. 

  104.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should use GET 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>
    105. 

  105.     axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>headers<span class="token punctuation">.</span>get<span class="token punctuation">[</span><span class="token string">'X-CUSTOM-HEADER'</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token string">'foo'</span>
    106. 

  106.     axios<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>
    107. 

  107. 

  108.     <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>
    109. 

  109.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span><span class="token string">'X-CUSTOM-HEADER'</span><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">'foo'</span><span class="token punctuation">)</span>
    110. 

  110.       <span class="token keyword">delete</span> axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>headers<span class="token punctuation">.</span>get<span class="token punctuation">[</span><span class="token string">'X-CUSTOM-HEADER'</span><span class="token punctuation">]</span>
    111. 

  111.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    112. 

  112.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    113. 

  113. 

  114.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should use POST 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>
    115. 

  115.     axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>headers<span class="token punctuation">.</span>post<span class="token punctuation">[</span><span class="token string">'X-CUSTOM-HEADER'</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token string">'foo'</span>
    116. 

  116.     axios<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 punctuation">{</span><span class="token punctuation">}</span><span class="token punctuation">)</span>
    117. 

  117. 

  118.     <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>
    119. 

  119.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span><span class="token string">'X-CUSTOM-HEADER'</span><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">'foo'</span><span class="token punctuation">)</span>
    120. 

  120.       <span class="token keyword">delete</span> axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>headers<span class="token punctuation">.</span>post<span class="token punctuation">[</span><span class="token string">'X-CUSTOM-HEADER'</span><span class="token punctuation">]</span>
    121. 

  121.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    122. 

  122.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    123. 

  123. 

  124.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should use header config'</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>
    125. 

  125.     <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>
    126. 

  126.       headers<span class="token operator">:</span> <span class="token punctuation">{</span>
    127. 

  127.         common<span class="token operator">:</span> <span class="token punctuation">{</span>
    128. 

  128.           <span class="token string-property property">'X-COMMON-HEADER'</span><span class="token operator">:</span> <span class="token string">'commonHeaderValue'</span>
    129. 

  129.         <span class="token punctuation">}</span><span class="token punctuation">,</span>
    130. 

  130.         get<span class="token operator">:</span> <span class="token punctuation">{</span>
    131. 

  131.           <span class="token string-property property">'X-GET-HEADER'</span><span class="token operator">:</span> <span class="token string">'getHeaderValue'</span>
    132. 

  132.         <span class="token punctuation">}</span><span class="token punctuation">,</span>
    133. 

  133.         post<span class="token operator">:</span> <span class="token punctuation">{</span>
    134. 

  134.           <span class="token string-property property">'X-POST-HEADER'</span><span class="token operator">:</span> <span class="token string">'postHeaderValue'</span>
    135. 

  135.         <span class="token punctuation">}</span>
    136. 

  136.       <span class="token punctuation">}</span>
    137. 

  137.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    138. 

  138. 

  139.     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>
    140. 

  140.       headers<span class="token operator">:</span> <span class="token punctuation">{</span>
    141. 

  141.         <span class="token string-property property">'X-FOO-HEADER'</span><span class="token operator">:</span> <span class="token string">'fooHeaderValue'</span><span class="token punctuation">,</span>
    142. 

  142.         <span class="token string-property property">'X-BAR-HEADER'</span><span class="token operator">:</span> <span class="token string">'barHeaderValue'</span>
    143. 

  143.       <span class="token punctuation">}</span>
    144. 

  144.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    145. 

  145. 

  146.     <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>
    147. 

  147.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toEqual</span><span class="token punctuation">(</span>
    148. 

  148.         <span class="token function">deepMerge</span><span class="token punctuation">(</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>headers<span class="token punctuation">.</span>common<span class="token punctuation">,</span> axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>headers<span class="token punctuation">.</span>get<span class="token punctuation">,</span> <span class="token punctuation">{</span>
    149. 

  149.           <span class="token string-property property">'X-COMMON-HEADER'</span><span class="token operator">:</span> <span class="token string">'commonHeaderValue'</span><span class="token punctuation">,</span>
    150. 

  150.           <span class="token string-property property">'X-GET-HEADER'</span><span class="token operator">:</span> <span class="token string">'getHeaderValue'</span><span class="token punctuation">,</span>
    151. 

  151.           <span class="token string-property property">'X-FOO-HEADER'</span><span class="token operator">:</span> <span class="token string">'fooHeaderValue'</span><span class="token punctuation">,</span>
    152. 

  152.           <span class="token string-property property">'X-BAR-HEADER'</span><span class="token operator">:</span> <span class="token string">'barHeaderValue'</span>
    153. 

  153.         <span class="token punctuation">}</span><span class="token punctuation">)</span>
    154. 

  154.       <span class="token punctuation">)</span>
    155. 

  155.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    156. 

  156.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    157. 

  157. 

  158.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should be used by custom instance if set before instance created'</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>
    159. 

  159.     axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>baseURL <span class="token operator">=</span> <span class="token string">'http://example.org/'</span>
    160. 

  160.     <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>
    161. 

  161. 

  162.     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>
    163. 

  163. 

  164.     <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>
    165. 

  165.       <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">'http://example.org/foo'</span><span class="token punctuation">)</span>
    166. 

  166.       <span class="token keyword">delete</span> axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>baseURL
    167. 

  167.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    168. 

  168.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    169. 

  169. 

  170.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should not be used by custom instance if set after instance created'</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>
    171. 

  171.     <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>
    172. 

  172.     axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>baseURL <span class="token operator">=</span> <span class="token string">'http://example.org/'</span>
    173. 

  173. 

  174.     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>
    175. 

  175. 

  176.     <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>
    177. 

  177.       <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>
    178. 

  178.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    179. 

  179.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    180. 

  180. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    181. 

  181. </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><h2 id="transform-模块单元测试"><a href="#transform-模块单元测试" class="header-anchor">#</a> transform 模块单元测试</h2> <p><code>transform</code> 模块用来定义请求和响应的转换方法，我们需要为其编写单元测试。</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> AxiosResponse<span class="token punctuation">,</span> AxiosTransformer <span class="token punctuation">}</span> <span class="token keyword">from</span> <span class="token string">'../src/index'</span>
    182. 

  182. <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>
    183. 

  183. 

  184. <span class="token function">describe</span><span class="token punctuation">(</span><span class="token string">'transform'</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>
    185. 

  185.   <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>
    186. 

  186.     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>
    187. 

  187.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    188. 

  188. 

  189.   <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>
    190. 

  190.     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>
    191. 

  191.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    192. 

  192. 

  193.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should transform JSON to string'</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>
    194. 

  194.     <span class="token keyword">const</span> data <span class="token operator">=</span> <span class="token punctuation">{</span>
    195. 

  195.       foo<span class="token operator">:</span> <span class="token string">'bar'</span>
    196. 

  196.     <span class="token punctuation">}</span>
    197. 

  197. 

  198.     axios<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> data<span class="token punctuation">)</span>
    199. 

  199. 

  200.     <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>
    201. 

  201.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>params<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">'{&quot;foo&quot;:&quot;bar&quot;}'</span><span class="token punctuation">)</span>
    202. 

  202.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    203. 

  203.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    204. 

  204. 

  205.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should transform string to JSON'</span><span class="token punctuation">,</span> done <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    206. 

  206.     <span class="token keyword">let</span> response<span class="token operator">:</span> AxiosResponse
    207. 

  207. 

  208.     <span class="token function">axios</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>
    209. 

  209.       response <span class="token operator">=</span> res
    210. 

  210.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    211. 

  211. 

  212.     <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>
    213. 

  213.       request<span class="token punctuation">.</span><span class="token function">respondWith</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    214. 

  214.         status<span class="token operator">:</span> <span class="token number">200</span><span class="token punctuation">,</span>
    215. 

  215.         responseText<span class="token operator">:</span> <span class="token string">'{&quot;foo&quot;: &quot;bar&quot;}'</span>
    216. 

  216.       <span class="token punctuation">}</span><span class="token punctuation">)</span>
    217. 

  217. 

  218.       <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>
    219. 

  219.         <span class="token function">expect</span><span class="token punctuation">(</span><span class="token keyword">typeof</span> response<span class="token punctuation">.</span>data<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>
    220. 

  220.         <span class="token function">expect</span><span class="token punctuation">(</span>response<span class="token punctuation">.</span>data<span class="token punctuation">.</span>foo<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">'bar'</span><span class="token punctuation">)</span>
    221. 

  221.         <span class="token function">done</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    222. 

  222.       <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token number">100</span><span class="token punctuation">)</span>
    223. 

  223.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    224. 

  224.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    225. 

  225. 

  226.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should override default transform'</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>
    227. 

  227.     <span class="token keyword">const</span> data <span class="token operator">=</span> <span class="token punctuation">{</span>
    228. 

  228.       foo<span class="token operator">:</span> <span class="token string">'bar'</span>
    229. 

  229.     <span class="token punctuation">}</span>
    230. 

  230. 

  231.     axios<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> data<span class="token punctuation">,</span> <span class="token punctuation">{</span>
    232. 

  232.       <span class="token function">transformRequest</span><span class="token punctuation">(</span>data<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    233. 

  233.         <span class="token keyword">return</span> data
    234. 

  234.       <span class="token punctuation">}</span>
    235. 

  235.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    236. 

  236. 

  237.     <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>
    238. 

  238.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>params<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toEqual</span><span class="token punctuation">(</span><span class="token punctuation">{</span> foo<span class="token operator">:</span> <span class="token string">'bar'</span> <span class="token punctuation">}</span><span class="token punctuation">)</span>
    239. 

  239.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    240. 

  240.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    241. 

  241. 

  242.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should allow an Array of transformers'</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>
    243. 

  243.     <span class="token keyword">const</span> data <span class="token operator">=</span> <span class="token punctuation">{</span>
    244. 

  244.       foo<span class="token operator">:</span> <span class="token string">'bar'</span>
    245. 

  245.     <span class="token punctuation">}</span>
    246. 

  246. 

  247.     axios<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> data<span class="token punctuation">,</span> <span class="token punctuation">{</span>
    248. 

  248.       transformRequest<span class="token operator">:</span> <span class="token punctuation">(</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>transformRequest <span class="token keyword">as</span> AxiosTransformer<span class="token punctuation">[</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">concat</span><span class="token punctuation">(</span><span class="token keyword">function</span><span class="token punctuation">(</span>
    249. 

  249.         data
    250. 

  250.       <span class="token punctuation">)</span> <span class="token punctuation">{</span>
    251. 

  251.         <span class="token keyword">return</span> data<span class="token punctuation">.</span><span class="token function">replace</span><span class="token punctuation">(</span><span class="token string">'bar'</span><span class="token punctuation">,</span> <span class="token string">'baz'</span><span class="token punctuation">)</span>
    252. 

  252.       <span class="token punctuation">}</span><span class="token punctuation">)</span>
    253. 

  253.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    254. 

  254. 

  255.     <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>
    256. 

  256.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>params<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">'{&quot;foo&quot;:&quot;baz&quot;}'</span><span class="token punctuation">)</span>
    257. 

  257.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    258. 

  258.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    259. 

  259. 

  260.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should allowing mutating 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>
    261. 

  261.     <span class="token keyword">const</span> token <span class="token operator">=</span> Math<span class="token punctuation">.</span><span class="token function">floor</span><span class="token punctuation">(</span>Math<span class="token punctuation">.</span><span class="token function">random</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">*</span> Math<span class="token punctuation">.</span><span class="token function">pow</span><span class="token punctuation">(</span><span class="token number">2</span><span class="token punctuation">,</span> <span class="token number">64</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toString</span><span class="token punctuation">(</span><span class="token number">36</span><span class="token punctuation">)</span>
    262. 

  262. 

  263.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>
    264. 

  264.       <span class="token function-variable function">transformRequest</span><span class="token operator">:</span> <span class="token punctuation">(</span>data<span class="token punctuation">,</span> headers<span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    265. 

  265.         headers<span class="token punctuation">[</span><span class="token string">'X-Authorization'</span><span class="token punctuation">]</span> <span class="token operator">=</span> token
    266. 

  266.         <span class="token keyword">return</span> data
    267. 

  267.       <span class="token punctuation">}</span>
    268. 

  268.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    269. 

  269. 

  270.     <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>
    271. 

  271.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span><span class="token string">'X-Authorization'</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toEqual</span><span class="token punctuation">(</span>token<span class="token punctuation">)</span>
    272. 

  272.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    273. 

  273.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    274. 

  274. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    275. 

  275. </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 class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br><span class="line-number">55</span><br><span class="line-number">56</span><br><span class="line-number">57</span><br><span class="line-number">58</span><br><span class="line-number">59</span><br><span class="line-number">60</span><br><span class="line-number">61</span><br><span class="line-number">62</span><br><span class="line-number">63</span><br><span class="line-number">64</span><br><span class="line-number">65</span><br><span class="line-number">66</span><br><span class="line-number">67</span><br><span class="line-number">68</span><br><span class="line-number">69</span><br><span class="line-number">70</span><br><span class="line-number">71</span><br><span class="line-number">72</span><br><span class="line-number">73</span><br><span class="line-number">74</span><br><span class="line-number">75</span><br><span class="line-number">76</span><br><span class="line-number">77</span><br><span class="line-number">78</span><br><span class="line-number">79</span><br><span class="line-number">80</span><br><span class="line-number">81</span><br><span class="line-number">82</span><br><span class="line-number">83</span><br><span class="line-number">84</span><br><span class="line-number">85</span><br><span class="line-number">86</span><br><span class="line-number">87</span><br><span class="line-number">88</span><br><span class="line-number">89</span><br><span class="line-number">90</span><br><span class="line-number">91</span><br><span class="line-number">92</span><br><span class="line-number">93</span><br><span class="line-number">94</span><br></div></div><h2 id="xsrf-模块单元测试"><a href="#xsrf-模块单元测试" class="header-anchor">#</a> xsrf 模块单元测试</h2> <p><code>xsrf</code> 模块提供了一套防御 <code>xsrf</code> 攻击的解决方案，我们需要为其编写单元测试。</p> <p><code>test/xsrf.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 keyword">from</span> <span class="token string">'../src/index'</span>
    276. 

  276. <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>
    277. 

  277. 

  278. <span class="token function">describe</span><span class="token punctuation">(</span><span class="token string">'xsrf'</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>
    279. 

  279.   <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>
    280. 

  280.     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>
    281. 

  281.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    282. 

  282. 

  283.   <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>
    284. 

  284.     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>
    285. 

  285.     document<span class="token punctuation">.</span>cookie <span class="token operator">=</span>
    286. 

  286.       axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfCookieName <span class="token operator">+</span> <span class="token string">'=;expires='</span> <span class="token operator">+</span> <span class="token keyword">new</span> <span class="token class-name">Date</span><span class="token punctuation">(</span>Date<span class="token punctuation">.</span><span class="token function">now</span><span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token operator">-</span> <span class="token number">86400000</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toUTCString</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    287. 

  287.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    288. 

  288. 

  289.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should not set xsrf header if cookie is null'</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>
    290. 

  290.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>
    291. 

  291. 

  292.     <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>
    293. 

  293.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfHeaderName<span class="token operator">!</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBeUndefined</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    294. 

  294.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    295. 

  295.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    296. 

  296. 

  297.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should set xsrf header if cookie is set'</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>
    298. 

  298.     document<span class="token punctuation">.</span>cookie <span class="token operator">=</span> axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfCookieName <span class="token operator">+</span> <span class="token string">'=12345'</span>
    299. 

  299. 

  300.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">)</span>
    301. 

  301. 

  302.     <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>
    303. 

  303.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfHeaderName<span class="token operator">!</span><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">'12345'</span><span class="token punctuation">)</span>
    304. 

  304.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    305. 

  305.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    306. 

  306. 

  307.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should not set xsrf header for cross origin'</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>
    308. 

  308.     document<span class="token punctuation">.</span>cookie <span class="token operator">=</span> axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfCookieName <span class="token operator">+</span> <span class="token string">'=12345'</span>
    309. 

  309. 

  310.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'http://example.com/'</span><span class="token punctuation">)</span>
    311. 

  311. 

  312.     <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>
    313. 

  313.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfHeaderName<span class="token operator">!</span><span class="token punctuation">]</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBeUndefined</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    314. 

  314.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    315. 

  315.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    316. 

  316. 

  317.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should set xsrf header for cross origin when using withCredentials'</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>
    318. 

  318.     document<span class="token punctuation">.</span>cookie <span class="token operator">=</span> axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfCookieName <span class="token operator">+</span> <span class="token string">'=12345'</span>
    319. 

  319. 

  320.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'http://example.com/'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>
    321. 

  321.       withCredentials<span class="token operator">:</span> <span class="token boolean">true</span>
    322. 

  322.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    323. 

  323. 

  324.     <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>
    325. 

  325.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span>axios<span class="token punctuation">.</span>defaults<span class="token punctuation">.</span>xsrfHeaderName<span class="token operator">!</span><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">'12345'</span><span class="token punctuation">)</span>
    326. 

  326.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    327. 

  327.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    328. 

  328. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    329. 

  329. </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 class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br><span class="line-number">43</span><br><span class="line-number">44</span><br><span class="line-number">45</span><br><span class="line-number">46</span><br><span class="line-number">47</span><br><span class="line-number">48</span><br><span class="line-number">49</span><br><span class="line-number">50</span><br><span class="line-number">51</span><br><span class="line-number">52</span><br><span class="line-number">53</span><br><span class="line-number">54</span><br></div></div><p>注意在 <code>afterEach</code> 函数中我们清空了 <code>xsrf</code> 相关的 cookie。</p> <h2 id="上传下载模块单元测试"><a href="#上传下载模块单元测试" class="header-anchor">#</a> 上传下载模块单元测试</h2> <p>上传下载模块允许我们监听上传和下载的进度，我们需要为其编写单元测试。</p> <p><code>test/progress.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 keyword">from</span> <span class="token string">'../src/index'</span>
    330. 

  330. <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>
    331. 

  331. 

  332. <span class="token function">describe</span><span class="token punctuation">(</span><span class="token string">'progress'</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>
    333. 

  333.   <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>
    334. 

  334.     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>
    335. 

  335.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    336. 

  336. 

  337.   <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>
    338. 

  338.     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>
    339. 

  339.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    340. 

  340. 

  341.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should add a download progress handler'</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>
    342. 

  342.     <span class="token keyword">const</span> progressSpy <span class="token operator">=</span> jest<span class="token punctuation">.</span><span class="token function">fn</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    343. 

  343. 

  344.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span> onDownloadProgress<span class="token operator">:</span> progressSpy <span class="token punctuation">}</span><span class="token punctuation">)</span>
    345. 

  345. 

  346.     <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>
    347. 

  347.       request<span class="token punctuation">.</span><span class="token function">respondWith</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    348. 

  348.         status<span class="token operator">:</span> <span class="token number">200</span><span class="token punctuation">,</span>
    349. 

  349.         responseText<span class="token operator">:</span> <span class="token string">'{&quot;foo&quot;: &quot;bar&quot;}'</span>
    350. 

  350.       <span class="token punctuation">}</span><span class="token punctuation">)</span>
    351. 

  351.       <span class="token function">expect</span><span class="token punctuation">(</span>progressSpy<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toHaveBeenCalled</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    352. 

  352.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    353. 

  353.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    354. 

  354. 

  355.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should add a upload progress handler'</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>
    356. 

  356.     <span class="token keyword">const</span> progressSpy <span class="token operator">=</span> jest<span class="token punctuation">.</span><span class="token function">fn</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    357. 

  357. 

  358.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span> onUploadProgress<span class="token operator">:</span> progressSpy <span class="token punctuation">}</span><span class="token punctuation">)</span>
    359. 

  359. 

  360.     <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>
    361. 

  361.       <span class="token comment">// Jasmine AJAX doesn't trigger upload events.Waiting for jest-ajax fix</span>
    362. 

  362.       <span class="token comment">// expect(progressSpy).toHaveBeenCalled()</span>
    363. 

  363.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    364. 

  364.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    365. 

  365. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    366. 

  366. </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 class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br></div></div><p>注意，由于 <code>jasmine-ajax</code> 插件不会派发 <code>upload</code> 事件，这个未来可以通过我们自己编写的 <code>jest-ajax</code> 插件来解决，目前不写断言的情况它会直接通过。</p> <h2 id="http-授权模块单元测试"><a href="#http-授权模块单元测试" class="header-anchor">#</a> HTTP 授权模块单元测试</h2> <p>HTTP 授权模块为我们在请求头中添加 <code>Authorization</code> 字段，我们需要为其编写单元测试。</p> <p><code>test/auth.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 keyword">from</span> <span class="token string">'../src/index'</span>
    367. 

  367. <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>
    368. 

  368. 

  369. <span class="token function">describe</span><span class="token punctuation">(</span><span class="token string">'auth'</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>
    370. 

  370.   <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>
    371. 

  371.     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>
    372. 

  372.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    373. 

  373. 

  374.   <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>
    375. 

  375.     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>
    376. 

  376.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    377. 

  377. 

  378.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should accept HTTP Basic auth with username/password'</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>
    379. 

  379.     <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>
    380. 

  380.       auth<span class="token operator">:</span> <span class="token punctuation">{</span>
    381. 

  381.         username<span class="token operator">:</span> <span class="token string">'Aladdin'</span><span class="token punctuation">,</span>
    382. 

  382.         password<span class="token operator">:</span> <span class="token string">'open sesame'</span>
    383. 

  383.       <span class="token punctuation">}</span>
    384. 

  384.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    385. 

  385. 

  386.     <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>
    387. 

  387.       <span class="token function">expect</span><span class="token punctuation">(</span>request<span class="token punctuation">.</span>requestHeaders<span class="token punctuation">[</span><span class="token string">'Authorization'</span><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">'Basic QWxhZGRpbjpvcGVuIHNlc2FtZQ=='</span><span class="token punctuation">)</span>
    388. 

  388.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    389. 

  389.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    390. 

  390. 

  391.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should fail to encode HTTP Basic auth credentials with non-Latin1 characters'</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>
    392. 

  392.     <span class="token keyword">return</span> <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>
    393. 

  393.       auth<span class="token operator">:</span> <span class="token punctuation">{</span>
    394. 

  394.         username<span class="token operator">:</span> <span class="token string">'Aladßç£☃din'</span><span class="token punctuation">,</span>
    395. 

  395.         password<span class="token operator">:</span> <span class="token string">'open sesame'</span>
    396. 

  396.       <span class="token punctuation">}</span>
    397. 

  397.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    398. 

  398.       <span class="token punctuation">.</span><span class="token function">then</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>
    399. 

  399.         <span class="token keyword">throw</span> <span class="token keyword">new</span> <span class="token class-name">Error</span><span class="token punctuation">(</span>
    400. 

  400.           <span class="token string">'Should not succeed to make a HTTP Basic auth request with non-latin1 chars in credentials.'</span>
    401. 

  401.         <span class="token punctuation">)</span>
    402. 

  402.       <span class="token punctuation">}</span><span class="token punctuation">)</span>
    403. 

  403.       <span class="token punctuation">.</span><span class="token function">catch</span><span class="token punctuation">(</span>error <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    404. 

  404.         <span class="token function">expect</span><span class="token punctuation">(</span><span class="token regex"><span class="token regex-delimiter">/</span><span class="token regex-source language-regex">character</span><span class="token regex-delimiter">/</span><span class="token regex-flags">i</span></span><span class="token punctuation">.</span><span class="token function">test</span><span class="token punctuation">(</span>error<span class="token punctuation">.</span>message<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBeTruthy</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    405. 

  405.       <span class="token punctuation">}</span><span class="token punctuation">)</span>
    406. 

  406.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    407. 

  407. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    408. 

  408. </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 class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br></div></div><h2 id="静态方法模块单元测试"><a href="#静态方法模块单元测试" class="header-anchor">#</a> 静态方法模块单元测试</h2> <p>静态方法模块为 <code>axios</code> 对象添加了 2 个静态方法，我们需要为其编写单元测试。</p> <p><code>test/static.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 keyword">from</span> <span class="token string">'../src/index'</span>
    409. 

  409. 

  410. <span class="token function">describe</span><span class="token punctuation">(</span><span class="token string">'promise'</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>
    411. 

  411.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should support all'</span><span class="token punctuation">,</span> done <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    412. 

  412.     <span class="token keyword">let</span> fulfilled <span class="token operator">=</span> <span class="token boolean">false</span>
    413. 

  413. 

  414.     axios<span class="token punctuation">.</span><span class="token function">all</span><span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token boolean">true</span><span class="token punctuation">,</span> <span class="token boolean">false</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>arg <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    415. 

  415.       fulfilled <span class="token operator">=</span> arg<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span>
    416. 

  416.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    417. 

  417. 

  418.     <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>
    419. 

  419.       <span class="token function">expect</span><span class="token punctuation">(</span>fulfilled<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBeTruthy</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    420. 

  420.       <span class="token function">done</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    421. 

  421.     <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token number">100</span><span class="token punctuation">)</span>
    422. 

  422.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    423. 

  423. 

  424.   <span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should support spread'</span><span class="token punctuation">,</span> done <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    425. 

  425.     <span class="token keyword">let</span> sum <span class="token operator">=</span> <span class="token number">0</span>
    426. 

  426.     <span class="token keyword">let</span> fulfilled <span class="token operator">=</span> <span class="token boolean">false</span>
    427. 

  427.     <span class="token keyword">let</span> result<span class="token operator">:</span> <span class="token builtin">any</span>
    428. 

  428. 

  429.     axios
    430. 

  430.       <span class="token punctuation">.</span><span class="token function">all</span><span class="token punctuation">(</span><span class="token punctuation">[</span><span class="token number">123</span><span class="token punctuation">,</span> <span class="token number">456</span><span class="token punctuation">]</span><span class="token punctuation">)</span>
    431. 

  431.       <span class="token punctuation">.</span><span class="token function">then</span><span class="token punctuation">(</span>
    432. 

  432.         axios<span class="token punctuation">.</span><span class="token function">spread</span><span class="token punctuation">(</span><span class="token punctuation">(</span>a<span class="token punctuation">,</span> b<span class="token punctuation">)</span> <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    433. 

  433.           sum <span class="token operator">=</span> a <span class="token operator">+</span> b
    434. 

  434.           fulfilled <span class="token operator">=</span> <span class="token boolean">true</span>
    435. 

  435.           <span class="token keyword">return</span> <span class="token string">'hello world'</span>
    436. 

  436.         <span class="token punctuation">}</span><span class="token punctuation">)</span>
    437. 

  437.       <span class="token punctuation">)</span>
    438. 

  438.       <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>
    439. 

  439.         result <span class="token operator">=</span> res
    440. 

  440.       <span class="token punctuation">}</span><span class="token punctuation">)</span>
    441. 

  441. 

  442.     <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>
    443. 

  443.       <span class="token function">expect</span><span class="token punctuation">(</span>fulfilled<span class="token punctuation">)</span><span class="token punctuation">.</span><span class="token function">toBeTruthy</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    444. 

  444.       <span class="token function">expect</span><span class="token punctuation">(</span>sum<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">123</span> <span class="token operator">+</span> <span class="token number">456</span><span class="token punctuation">)</span>
    445. 

  445.       <span class="token function">expect</span><span class="token punctuation">(</span>result<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">'hello world'</span><span class="token punctuation">)</span>
    446. 

  446.       <span class="token function">done</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    447. 

  447.     <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token number">100</span><span class="token punctuation">)</span>
    448. 

  448.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    449. 

  449. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    450. 

  450. </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 class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br><span class="line-number">32</span><br><span class="line-number">33</span><br><span class="line-number">34</span><br><span class="line-number">35</span><br><span class="line-number">36</span><br><span class="line-number">37</span><br><span class="line-number">38</span><br><span class="line-number">39</span><br><span class="line-number">40</span><br><span class="line-number">41</span><br><span class="line-number">42</span><br></div></div><h2 id="补充未覆盖的代码测试"><a href="#补充未覆盖的代码测试" class="header-anchor">#</a> 补充未覆盖的代码测试</h2> <p>我们发现，跑完测试后，仍有一些代码没有覆盖到测试，其中 <code>core/xhr.ts</code> 文件的第 43 行：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">if</span> <span class="token punctuation">(</span>responseType<span class="token punctuation">)</span> <span class="token punctuation">{</span>
    451. 

  451.   request<span class="token punctuation">.</span>responseType <span class="token operator">=</span> responseType
    452. 

  452. <span class="token punctuation">}</span>
    453. 

  453. </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></div></div><p>我们并未在测试中设置过 <code>responseType</code>，因此我们在 <code>test/requests.spect.ts</code> 文件中补充相关测试：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token function">test</span><span class="token punctuation">(</span><span class="token string">'should support array buffer response'</span><span class="token punctuation">,</span> done <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    454. 

  454.   <span class="token keyword">let</span> response<span class="token operator">:</span> AxiosResponse
    455. 

  455. 

  456.   <span class="token keyword">function</span> <span class="token function">str2ab</span><span class="token punctuation">(</span>str<span class="token operator">:</span> <span class="token builtin">string</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    457. 

  457.     <span class="token keyword">const</span> buff <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">ArrayBuffer</span><span class="token punctuation">(</span>str<span class="token punctuation">.</span>length <span class="token operator">*</span> <span class="token number">2</span><span class="token punctuation">)</span>
    458. 

  458.     <span class="token keyword">const</span> view <span class="token operator">=</span> <span class="token keyword">new</span> <span class="token class-name">Uint16Array</span><span class="token punctuation">(</span>buff<span class="token punctuation">)</span>
    459. 

  459.     <span class="token keyword">for</span> <span class="token punctuation">(</span><span class="token keyword">let</span> i <span class="token operator">=</span> <span class="token number">0</span><span class="token punctuation">;</span> i <span class="token operator">&lt;</span> str<span class="token punctuation">.</span>length<span class="token punctuation">;</span> i<span class="token operator">++</span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
    460. 

  460.       view<span class="token punctuation">[</span>i<span class="token punctuation">]</span> <span class="token operator">=</span> str<span class="token punctuation">.</span><span class="token function">charCodeAt</span><span class="token punctuation">(</span>i<span class="token punctuation">)</span>
    461. 

  461.     <span class="token punctuation">}</span>
    462. 

  462.     <span class="token keyword">return</span> buff
    463. 

  463.   <span class="token punctuation">}</span>
    464. 

  464. 

  465.   <span class="token function">axios</span><span class="token punctuation">(</span><span class="token string">'/foo'</span><span class="token punctuation">,</span> <span class="token punctuation">{</span>
    466. 

  466.     responseType<span class="token operator">:</span> <span class="token string">'arraybuffer'</span>
    467. 

  467.   <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>data <span class="token operator">=&gt;</span> <span class="token punctuation">{</span>
    468. 

  468.     response <span class="token operator">=</span> data
    469. 

  469.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    470. 

  470. 

  471.   <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>
    472. 

  472.     request<span class="token punctuation">.</span><span class="token function">respondWith</span><span class="token punctuation">(</span><span class="token punctuation">{</span>
    473. 

  473.       status<span class="token operator">:</span> <span class="token number">200</span><span class="token punctuation">,</span>
    474. 

  474.       <span class="token comment">// @ts-ignore</span>
    475. 

  475.       response<span class="token operator">:</span> <span class="token function">str2ab</span><span class="token punctuation">(</span><span class="token string">'Hello world'</span><span class="token punctuation">)</span>
    476. 

  476.     <span class="token punctuation">}</span><span class="token punctuation">)</span>
    477. 

  477. 

  478.     <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>
    479. 

  479.       <span class="token function">expect</span><span class="token punctuation">(</span>response<span class="token punctuation">.</span>data<span class="token punctuation">.</span>byteLength<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">22</span><span class="token punctuation">)</span>
    480. 

  480.       <span class="token function">done</span><span class="token punctuation">(</span><span class="token punctuation">)</span>
    481. 

  481.     <span class="token punctuation">}</span><span class="token punctuation">,</span> <span class="token number">100</span><span class="token punctuation">)</span>
    482. 

  482.   <span class="token punctuation">}</span><span class="token punctuation">)</span>
    483. 

  483. <span class="token punctuation">}</span><span class="token punctuation">)</span>
    484. 

  484. </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 class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br><span class="line-number">28</span><br><span class="line-number">29</span><br><span class="line-number">30</span><br><span class="line-number">31</span><br></div></div><p>另外我们发现 <code>core/xhr.ts</code> 文件的第 13 行：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code>method <span class="token operator">=</span> <span class="token string">'get'</span>
    485. 

  485. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>分支没有测试完全。因为实际上代码执行到这的时候 <code>method</code> 是一定会有的，所以我们不必为其指定默认值，另外还需要在 <code>method!.toUpperCase()</code> 的时候使用非空断言。</p> <p>同时<code>core/xhr.ts</code> 文件的第 66 行：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">const</span> responseData <span class="token operator">=</span> responseType <span class="token operator">!==</span> <span class="token string">'text'</span> <span class="token operator">?</span> request<span class="token punctuation">.</span>response <span class="token operator">:</span> request<span class="token punctuation">.</span>responseText
    486. 

  486. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>分支也没有测试完全。这里我们应该先判断存在 <code>responseType</code> 存在的情况下再去和 <code>text</code> 做对比，需要修改逻辑：</p> <div class="language-typescript line-numbers-mode"><pre class="language-typescript"><code><span class="token keyword">const</span> responseData <span class="token operator">=</span> responseType <span class="token operator">&amp;&amp;</span> responseType <span class="token operator">!==</span> <span class="token string">'text'</span> <span class="token operator">?</span> request<span class="token punctuation">.</span>response <span class="token operator">:</span> request<span class="token punctuation">.</span>responseText
    487. 

  487. </code></pre> <div class="line-numbers-wrapper"><span class="line-number">1</span><br></div></div><p>这样再次跑测试，就覆盖了所有的分支。</p> <p>到此为止，除了我们之前说的 <code>helpers/error.ts</code> 模块中对于 <code>super</code> 的测试的分支覆盖率没达到 100%，其它模块均达到 100% 的测试覆盖率。</p> <p>有些有强迫症的同学可能会觉得，能不能通过某种手段让它的覆盖率达到 100% 呢，这里其实有一个奇技淫巧，在 <code>helpers/error.ts</code> 文件的 <code>constructor</code> 函数上方加一个 <code>/* istanbul ignore next */</code> 注释，这样其实相当于忽略了整个构造函数的测试，这样我们就可以达到 100% 的覆盖率了。</p> <p><code>/* istanbul ignore next */</code> 在我们去阅读一些开源代码的时候经常会遇到，主要用途就是用来忽略测试用的，这个技巧不可滥用，除非你明确的知道这段代码不需要测试，否则你不应该使用它。滥用就失去了单元测试的意义了。</p> <p>至此，我们就完成了整个 <code>ts-axios</code> 库的测试了，我们也成功地让测试覆盖率达到目标 99% 以上。下一章我会教大家如果打包构建和发布我们的 <code>ts-axios</code> 库。</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/10.剩余模块单元测试.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 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></div> <div class="tags"><a href="/blog/tags/?tag=TypeScript" title="标签">#TypeScript</a></div> <div class="last-updated"><span class="prefix">上次更新:</span> <span class="time">2022/12/14, 19:36:42</span></div></div> <div class="page-nav-wapper"><div class="page-nav-centre-wrap"><a href="/blog/pages/6fa16aee29527032/" class="page-nav-centre page-nav-centre-prev"><div class="tooltip">请求取消模块单元测试</div></a> <a href="/blog/pages/3e5d5a45ad50f198/" class="page-nav-centre page-nav-centre-next"><div class="tooltip">ts-axios 编译与发布</div></a></div> <div class="page-nav"><p class="inner"><span class="prev">
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  489.         <a href="/blog/pages/6fa16aee29527032/" class="prev">请求取消模块单元测试</a></span> <span class="next"><a href="/blog/pages/3e5d5a45ad50f198/">ts-axios 编译与发布</a>→
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    493. 

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