问题描述
app/src/emails/account.js中的代码
code in app/src/emails/account.js
const mailgun = require("mailgun-js");
const DOMAIN = "sxxxxxxxxxxxxxxxxxxxxxxxxxxx.mailgun.org";
const mg = mailgun({apiKey: process.env.MAILGUN_API_KEY, domain: DOMAIN});
const sendWelcomeEmail = async (email, name) => {
const dataForMail = {
to: email,
from: '[email protected]',
subject: 'Testing!',
text: `Welcome to the app, ${name}, let me know how you get along with the app.`,
}
mg.messages().send(dataForMail)
}
app/test/__ mocks __/mailgun-js中的代码:
code in app/test/__mocks__/mailgun-js:
module.exports = {
messages() {
},
send() {
},
mailgun() {
}
}
每当我开玩笑时，它说"mailgun不是函数".如何为该构造函数创建手动模拟?
Whenever I run jest, it says 'mailgun is not a function'. How can I create a manual mock for this constructor?
推荐答案
我的模拟对象是对象，而不是函数.测试双打需要匹配他们要替换的事物的接口；在这种情况下，它必须是一个函数，该函数使用messages方法返回对象(使用send方法返回对象).我的模拟完全不符合该结构. (非常感谢@jonrsharpe将此告知)mailgun-js.js需要以相同的方式进行编辑.
My mock is an object, not a function. Test doubles need to match the interface of the thing they're replacing; in this case, it needs to be a function that returns an object with a messages method (which returns an object with the send method). My mock doesn't match that structure at all. (Big thanks to @jonrsharpe for informing this)mailgun-js.js needs to be edited the same way.
module.exports = function(apiKey, domain) {
const object2 = {
send() {
}
}
const object1 = {
messages () {
return object2
}
}
return object1
}
这篇关于如何在mailgun-js的Node.js应用中使用Jest创建手动模拟?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！