我正在尝试测试一个es6类，但我不知道如何用sinon存根一个函数模块。测试不是sm下的覆盖线。callSoap函数
我试试这个：
module.js
function soapModule(){
this.callSoap = (id) => {
....//some code
return new Promise((resolve,reject) =>{
return resolve("whatever");
}
}
}
index.js(这是模块的索引)
"use strict";
var soapModule = require('./module/module');
module.exports.soapModule = soapModule;
my-class.js
import {soapModule} from "soap-client"
export default class MyClass {
constructor(){
console.log("instance created");
}
myMethod(id){
let sm = new soapModule();
return sm.callSoap(id)
.then(result => {
console.log(result);
}).catch(e => {
console.log("Error :" + e);
})
}
}
test.js
import MyClass from "../src/my-class";
import {soapModule} from "soap-client";
import sinon from 'sinon';
describe("Test MyClass",()=>{
let myclass;
let soap;
let stub;
before(()=>{
myclass = new MyClass();
soap = new soapModule();
stub = sinon.stub(soap,'callSoap');
});
it("test a", ()=>{
let fakeout = {
resp : "tada!"
}
stub.resolves(fakeout);
myclass.myMethod(1);
});
});
我尝试在soapModule上存根，但生成了以下错误:
无法存根不存在的自己的属性call Soap
最后，我必须将模块更改为ECMAScript 6语法。
所以，我的新模块看起来像这样：
module.js
export function callSoap(id){
....//some code
return new Promise((resolve,reject) =>{
return resolve("whatever");
}
}
当我更改为ECMAScript 6语法时，我实现了babel-cli以编译为EC5，因此索引从：
var soapModule = require('./module/module');
到
var soapModule = require('./lib/module'); //<-- this is the build output folder
然后，单元测试如下所示：
import MyClass from "../src/my-class";
import {soapModule} from "soap-client";
import sinon from 'sinon';
describe("Test MyClass",()=>{
let myclass;
let stub;
before(()=>{
myclass = new MyClass();
stub = sinon.stub(soap,'callSoap');
});
it("test a", ()=>{
let fakeout = {
resp : "tada!"
}
stub.resolves(fakeout);
myclass.myMethod(1).then(result =>{
console.log(result) //<----- this is the fakeout
}
)
});
});
我还注意到，您已经存根了肥皂模块实例的调用Soap方法。它需要是 soapModule 原型上的存根，因此当您在 myMethod 中创建实例时，它具有存根版本。
import MyClass from "../src/my-class";
import {soapModule} from "soap-client";
import sinon from 'sinon';
describe("Test MyClass",()=>{
let myclass;
let stub;
let stubP;
before(()=>{
myclass = new MyClass();
stub = sinon.stub(soapModule.prototype, 'callSoap');
stubP = sinon.stub(); // second stub to be used as a promise
stub.returns(stubP);
});
after(() => {
stub.restore();
});
it("test a", ()=>{
let fakeout = {
resp : "tada!"
}
myclass.myMethod(1);
stubP.resolves(fakeout);
});
});
