$ 未在 mocha chai 测试脚本中定义

Question

i am trying to write a unit test case for a js function, its inside a .js file am loading that to a test.js file and then run我正在尝试为一个 js 函数编写一个单元测试用例，它在一个 .js 文件中，我正在将它加载到一个 test.js 文件中，然后运行

npm test test.js npm 测试 test.js

my test script contains我的测试脚本包含

const app = require('../js/customJs/myjs.js');
var assert = require('chai').assert;
const jsdom = require("jsdom");
const { JSDOM } = jsdom;
describe('Testing my test functions', function () {
     console.log("ready 2 test d dom");
     const dom = new JSDOM('<!DOCTYPE html><p id="myid"></div>');
     it('check the return value of helloworld module', function () {
         assert.equal(dashboard_tab.helloworld(),"hello");
     });
});

'myjs.js' file has helloworld function which gets a value from a dom element and call an ajax call , so i am trying to unit test if the return value is "hello"('of course this test fails, since that function will not be returning hello'),but while running this test script i was getting error like '$ is not defined' 'myjs.js' 文件有一个 helloworld 函数，它从一个 dom 元素获取一个值并调用一个 ajax 调用，所以我试图单元测试返回值是否为“hello”（'当然这个测试失败了，因为那个函数会不是返回 hello'），但是在运行此测试脚本时，我收到了“$ 未定义”之类的错误

myjs.js myjs.js

var count = 0;
       function helloworld(){
          var id_Val = $("#myid").val();  //i was getting $ is not defined here when i run test.js
           $.ajax({
                url: "test/",
                data: { 'id': id_Val },
                dataType: 'json',
                   success: function (data) {
                    //some code
                  }
           });
       }

i tried我试过

global.$ = require('jquery')(window); global.$ = require('jquery')(window); // now, window is not defined // 现在，窗口未定义

how to unit test a js function which includes jquery ($)如何对包含 jquery ($) 的 js 函数进行单元测试

Answer 1

This might be caused by $ conflict这可能是由 $ 冲突引起的

Please click here to know how to avoid it.请点击此处了解如何避免。

$conflict also occurs when you load jQuery file multiple times.当您多次加载 jQuery 文件时，也会发生 $conflict。 Could you please check that also你能不能也检查一下

$ 未在 mocha chai 测试脚本中定义

问题描述

1 个解决方案

解决方案1
0 2019-12-16 13:20:47

$ 未在 mocha chai 测试脚本中定义

问题描述

1 个解决方案

解决方案1 0 2019-12-16 13:20:47

解决方案1
0 2019-12-16 13:20:47