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postman--断言写法

qingshanli1988 / 614人阅读

摘要：断言介绍是一套测试驱动开发行为驱动开发的断言库包含有个断言库支持风格的和风格的可以高效的和任何测试框架搭配使用支持在中应用获取断言方式语法一测试用例名称表达式语法二断言库，可以通过右侧页签点击生成代码截取实际响应信息的

chai.js断言介绍

  1. 是一套TDD(测试驱动开发)/BDD(行为驱动开发)的断言库

  2. List item包含有3个断言库支持BDD风格的expect/should和TDD风格的assert

  3. List item可以高效的和任何js测试框架搭配使用（支持在postman中应用

获取断言方式

语法一：
tests[‘测试用例名称’] = 表达式;
语法二：
Chai.js断言库， 可以通过右侧页签点击生成代码

截取实际响应信息的新老版本代码对比

获取相应状体码：var code = responseCode.code; //旧式做法tests[code] = true;var code1 = pm.response.code; //新式做法tests[code] = true;获取响应信息：var info = responseCode.name;var info1 = pm.response.status;获取响应时间：var time = responseTime;tests["case_demo_02:验证响应时间是否再100-500以内返回"] = time>=100 && time<=500;var time1 = pm.response.responseTime获取响应头:var value = postman.getResponseHeader("Content-Type");var v1 = pm.response.headers;获取响应正文：var body_info = responseBody;var b1 = pm.response.text();

匹配正则表达式 match()

> <title>这是一个标题</title>var title_info = body_info.match(new RegExp("(.+?)"))[1];tests[title_info] = true;//[]只能填0和1。0为"这是一个标题"，1为"这是一个标题",去除[]为"这是一个标题"</span><span class="token operator">//</span><span class="token punctuation">.</span>匹配一个字符  <span class="token operator">+</span>表示匹配前面的子表达式<span class="token number">1</span>次或多次  ？懒惰字符 首次遇到右边界就停止匹配</code></pre> <h3><a id="test_50"></a>test断言基本语法</h3> <pre><code class="prism language-python">tests<span class="token punctuation">[</span><span class="token string">"case01 验证是否为true"</span><span class="token punctuation">]</span> <span class="token operator">=</span> true<span class="token punctuation">;</span>    <span class="token operator">//</span>falsetests<span class="token punctuation">[</span><span class="token string">"case02 验证是否1+1=2"</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">1</span><span class="token operator">+</span><span class="token number">1</span> <span class="token operator">==</span><span class="token operator">=</span> <span class="token number">2</span><span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否相等tests<span class="token punctuation">[</span><span class="token string">"case03 验证是否包含123"</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token string">"1234567hello"</span><span class="token punctuation">.</span>has<span class="token punctuation">(</span><span class="token string">"123"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否包含tests<span class="token punctuation">[</span><span class="token string">"case04 验证是否3>5"</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">3</span> <span class="token operator">></span> <span class="token number">5</span> <span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否相等tests<span class="token punctuation">[</span><span class="token string">"case05 与运算"</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">3</span> <span class="token operator">></span> <span class="token number">2</span> <span class="token operator">&</span><span class="token operator">&</span> <span class="token number">3</span><span class="token operator">></span><span class="token number">1</span> <span class="token punctuation">;</span>    <span class="token operator">//</span>与运算tests<span class="token punctuation">[</span><span class="token string">"case06 或运算"</span><span class="token punctuation">]</span> <span class="token operator">=</span> <span class="token number">3</span> <span class="token operator">></span> <span class="token number">2</span> <span class="token operator">|</span><span class="token operator">|</span> <span class="token number">3</span><span class="token operator">></span><span class="token number">5</span> <span class="token punctuation">;</span>    <span class="token operator">//</span>或运算tests<span class="token punctuation">[</span><span class="token string">"case07 非运算"</span><span class="token punctuation">]</span> <span class="token operator">=</span> !<span class="token punctuation">(</span><span class="token number">3</span> <span class="token operator">></span> <span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">;</span>    <span class="token operator">//</span>非运算</code></pre> <h3><a id="json_61"></a>把响应正文解析为json对象</h3> <pre><code class="prism language-python">var jsondata <span class="token operator">=</span> JSON<span class="token punctuation">.</span>parse<span class="token punctuation">(</span>responseBody<span class="token punctuation">)</span><span class="token punctuation">;</span><span class="token operator">//</span>旧版本写法var token <span class="token operator">=</span> jsondata<span class="token punctuation">.</span>expires_in<span class="token punctuation">;</span>tests<span class="token punctuation">[</span>token<span class="token punctuation">]</span> <span class="token operator">=</span> true<span class="token punctuation">;</span>var jd <span class="token operator">=</span> pm<span class="token punctuation">.</span>response<span class="token punctuation">.</span>json<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token operator">//</span>新版本写法tests<span class="token punctuation">[</span>jd<span class="token punctuation">.</span>access_token<span class="token punctuation">]</span> <span class="token operator">=</span> true<span class="token punctuation">;</span></code></pre> <pre><code class="prism language-python"><span class="token operator">></span> <span class="token punctuation">{<!-- --></span><span class="token string">"tags"</span><span class="token punctuation">:</span><span class="token punctuation">[</span><span class="token punctuation">{<!-- --></span><span class="token string">"id"</span><span class="token punctuation">:</span><span class="token number">2</span><span class="token punctuation">,</span><span class="token string">"name"</span><span class="token punctuation">:</span><span class="token string">"星标组"</span><span class="token punctuation">,</span><span class="token string">"count"</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><span class="token string">"id"</span><span class="token punctuation">:</span><span class="token number">100</span><span class="token punctuation">,</span><span class="token string">"name"</span><span class="token punctuation">:</span><span class="token string">"广东"</span><span class="token punctuation">,</span><span class="token string">"count"</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>var jd <span class="token operator">=</span> pm<span class="token punctuation">.</span>response<span class="token punctuation">.</span>json<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">;</span>var v <span class="token operator">=</span> jd<span class="token punctuation">.</span>tags<span class="token punctuation">[</span><span class="token number">0</span><span class="token punctuation">]</span><span class="token punctuation">.</span>name<span class="token punctuation">;</span> tests<span class="token punctuation">[</span>v<span class="token punctuation">]</span> <span class="token operator">=</span> true<span class="token punctuation">;</span></code></pre> <h3><a id="chaijs_79"></a>chai.js断言语法</h3> <pre><code class="prism language-python"><span class="token operator">//</span>chai<span class="token punctuation">,</span>js断言新写法pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_01 测试用例名称"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span>true<span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>be<span class="token punctuation">.</span>true<span class="token punctuation">;</span>   <span class="token operator">//</span>chai<span class="token punctuation">.</span>js断言编写处<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_02 相等"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span><span class="token number">1</span><span class="token operator">+</span><span class="token number">1</span><span class="token operator">==</span><span class="token number">2</span><span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>be<span class="token punctuation">.</span>true<span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否相等<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_02 测试用例名称"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span><span class="token number">2</span> <span class="token operator"><</span> <span class="token number">5</span> <span class="token operator">&</span><span class="token operator">&</span> <span class="token number">3</span> <span class="token operator"><</span> <span class="token number">6</span><span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>be<span class="token punctuation">.</span>true<span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否为true<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_03 测试用例名称"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span><span class="token string">""</span><span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>be<span class="token punctuation">.</span>ok<span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否为真值  非空、非<span class="token number">0</span> 即为真<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_04 测试用例名称"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span><span class="token string">"hello"</span><span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>equal<span class="token punctuation">(</span><span class="token string">"hello"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>  <span class="token operator">//</span>判断是否相等<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_05 测试用例名称"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span><span class="token punctuation">{<!-- --></span> <span class="token string">"list"</span><span class="token punctuation">:</span> <span class="token string">"aaa"</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>eql<span class="token punctuation">(</span><span class="token punctuation">{<!-- --></span> <span class="token string">"list"</span><span class="token punctuation">:</span> <span class="token string">"aaa"</span> <span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否深度相等<span class="token punctuation">{<!-- --></span><span class="token string">"list"</span><span class="token punctuation">:</span><span class="token string">"aaa"</span><span class="token punctuation">}</span><span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_06 测试用例名称"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span><span class="token string">"foobar"</span><span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>have<span class="token punctuation">.</span>string<span class="token punctuation">(</span><span class="token string">"bar"</span><span class="token punctuation">)</span><span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否包含字符串<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_07 测试用例名称"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span><span class="token string">"foobar"</span><span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>match<span class="token punctuation">(</span><span class="token operator">/</span><span class="token operator">^</span>foo<span class="token operator">/</span><span class="token punctuation">)</span><span class="token punctuation">;</span>    <span class="token operator">//</span>判断是否包含，支持正则表达式  <span class="token operator">^</span>表示以什么开头<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span></code></pre> <h3><a id="chaijs_115"></a>chai.js断言语法</h3> <pre><code class="prism language-python">pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_01 200"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span>pm<span class="token punctuation">.</span>response<span class="token punctuation">.</span>code<span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>equal<span class="token punctuation">(</span><span class="token number">200</span><span class="token punctuation">)</span><span class="token punctuation">}</span><span class="token punctuation">)</span>pm<span class="token punctuation">.</span>test<span class="token punctuation">(</span><span class="token string">"case_demo_0"</span><span class="token punctuation">,</span> function <span class="token punctuation">(</span><span class="token punctuation">)</span> <span class="token punctuation">{<!-- --></span>    pm<span class="token punctuation">.</span>expect<span class="token punctuation">(</span>pm<span class="token punctuation">.</span>response<span class="token punctuation">.</span>text<span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">.</span>to<span class="token punctuation">.</span>have<span class="token punctuation">.</span>string<span class="token punctuation">(</span><span class="token string">"文本"</span><span class="token punctuation">)</span><span class="token punctuation">;</span><span class="token punctuation">}</span><span class="token punctuation">)</span></code></pre> <h3><a id="_125"></a>部分基础语法</h3> <pre><code class="prism language-python">设置环境变量token，供后面的接口引用var data <span class="token operator">=</span> JSON<span class="token punctuation">.</span>parse<span class="token punctuation">(</span>responseBody<span class="token punctuation">)</span><span class="token punctuation">;</span>postman<span class="token punctuation">.</span>setGlobalVariable<span class="token punctuation">(</span><span class="token string">"token_id"</span><span class="token punctuation">,</span> value<span class="token punctuation">)</span> <span class="token operator">//</span>旧方法pm<span class="token punctuation">.</span><span class="token builtin">globals</span><span class="token punctuation">.</span><span class="token builtin">set</span><span class="token punctuation">(</span><span class="token string">"token_id"</span><span class="token punctuation">,</span> data<span class="token punctuation">.</span>access_token<span class="token punctuation">)</span><span class="token punctuation">;</span> <span class="token operator">//</span>新</code></pre> <p>学IT，上博学谷<br /> https://m.boxuegu.com/inviteShare/invited?id=8a2c9bed6aa1c063016ab53099d00037&source=1&from=singlemessage</p>                </div>                <link href="https://csdnimg.cn/release/blogv2/dist/mdeditor/css/editerView/markdown_views-d7a94ec6ab.css" rel="stylesheet">                <link href="https://csdnimg.cn/release/blogv2/dist/mdeditor/css/style-49037e4d27.css" rel="stylesheet">        </div>        <div id="treeSkill"></div>               
               
                                           
                       
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