本文介绍了开玩笑的mockResolvedValue不是一个函数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
模拟api调用时出现错误
I'm getting an error mocking my api call
TypeError: Cannot read property 'mockResolvedValue" of undefined
,无法弄清原因.我正在利用玩笑来测试我的api提取调用功能.
and cannot figure out why. I'm utilizing jest to test my api fetch call function.
这是我要导出的功能:
//file amData.jsx
const axios = require('axios');
async function fetchAssetManagerSummary() {
const response = await axios.get("https://fr-assetmanager.azurewebsites.net/File/GetOverview?runDat=04/01/2020");
return response.data;
}
module.exports = fetchAssetManagerSummary;
这是我的测试文件
const fetchAssetManagerSummary = require('./amData');
const axios = require('axios');
jest.mock("axios");
it("returns the object from fetch", async () => {
axios.get.mockResolvedValue({
data: [
{
userId: 1,
id: 1,
title: 'test'
}
]
})
const data = await fetchAssetManagerSummary();
console.log("data", data)
});
我得到的错误:
推荐答案
由于您已经模拟了axios
类,因此模拟axios.get返回值的一种方法是执行以下操作:
Since you have already mocked the axios
class, one of the ways of mocking the return value of axios.get is to do this:
axios.get = jest.fn().mockResolvedValue({
data: [
{
userId: 1,
id: 1,
title: 'test'
}
]
});
.
.
expect(axios.get).toHaveBeenCalledTimes(1);
或者,您可以监视axios.get()并提供模拟的返回值:
Alternatively, you can spy on axios.get(), and provide a mocked return value:
jest.spyOn(axios, 'get').mockResolvedValueOnce({
data: [
{
userId: 1,
id: 1,
title: 'test'
}
]
});
这篇关于开玩笑的mockResolvedValue不是一个函数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!