开玩笑地嘲笑 node_module

Question

I am mocking rfx-core node module.

I create mock file in path: <rootDir>/__mocks__/rfx-core.js

import core from 'rfx-core';

jest.genMockFromModule('core');
module.exports = core;

I get an error: Cannot find module 'core' from 'rfx-core.js'

from code line jest.genMockFromModule('core');

Answer 1

不要导入您正在jest.genMockFromModule()的模块，只需在模块名称上调用jest.genMockFromModule() ：

module.exports = jest.genMockFromModule('rfx-core');

Answer 2

If you don't need complex mock implementation you can avoid writing a manual mock. Just add jest.mock('rfx-core'); in your test file and all the rfx-core methods will be replaced with mock functions.