babel-jest

问题 I'm trying to mock npm uniqid library for react unit test. I have used this uniqid for check box. This is for component render test. 回答1: You can mock it like this: jest.mock('uniqid', ()=>(i)=> i + 'someUniqId') or if you use one of the other functions jest.mock('uniqid', () = > ({ process: (i) => i + 'someProcess, time: (i) => i + ' someTime, })) 来源： https://stackoverflow.com/questions/44537755/how-to-mock-npm-uniqid-for-react-unit-test-when-using-jest

问题 I'm trying to mock npm uniqid library for react unit test. I have used this uniqid for check box. This is for component render test. 回答1: You can mock it like this: jest.mock('uniqid', ()=>(i)=> i + 'someUniqId') or if you use one of the other functions jest.mock('uniqid', () = > ({ process: (i) => i + 'someProcess, time: (i) => i + ' someTime, })) 来源： https://stackoverflow.com/questions/44537755/how-to-mock-npm-uniqid-for-react-unit-test-when-using-jest

问题 I have a very simple test: describe('sanity', () => { it('sanity', () => { expect(true).toBeTruthy() }) }) And I'm receiving the following error: FAIL spec/javascript/sanity_test.js ● Test suite failed to run Jest encountered an unexpected token This usually means that you are trying to import a file which Jest cannot parse, e.g. it's not plain JavaScript. By default, if Jest sees a Babel config, it will use that to transform your files, ignoring "node_modules". Here's what you can do: • To

问题 I'm really confused, in our project jest isn't showing any stacktrace when an error appears. Following simple failing test: test('XXX', () => { expect(true).toBe(false); }); Outputs following: FAIL src/Sulu/Bundle/AdminBundle/Resources/js/containers/Form/tests/stores/XXX.test.js ● XXX expect(received).toBe(expected) // Object.is equality Expected value to be: false Received: true That's everything.. No error line.. Nothing.. We have used following things in our setup: Jest React Babel Enzyme

问题 I have spent a long time looking at other questions about this and looking at other projects on Github but none of the answers seem to work for me. I am loading a third party library in my project, and when running Jest tests I get the error export default portalCommunication; ^^^^^^ SyntaxError: Unexpected token export > 1 | import portalCommunication from 'mathletics-portal-communication-service'; I have tried updating my Jest config in many ways to get it to transpile this library but I

问题 I have spent a long time looking at other questions about this and looking at other projects on Github but none of the answers seem to work for me. I am loading a third party library in my project, and when running Jest tests I get the error export default portalCommunication; ^^^^^^ SyntaxError: Unexpected token export > 1 | import portalCommunication from 'mathletics-portal-communication-service'; I have tried updating my Jest config in many ways to get it to transpile this library but I

问题 I am trying to write a unit test case using jest and need to mock the below pattern . I am getting TypeError: is not a constructor. Usecase : My usecase is as mentioned below MyComponent.js : import serviceRegistry from "external/serviceRegistry"; serviceRegistry.getService("modulename", "servvice").then( service => { let myServiceInstance = new service(); myServiceInstance.init(p,d) }) Mycomponent.spec.js jest.mock('external/serviceRegistry', () => { return { getService: jest.fn(() =>

问题 I am trying to write a unit test case using jest and need to mock the below pattern . I am getting TypeError: is not a constructor. Usecase : My usecase is as mentioned below MyComponent.js : import serviceRegistry from "external/serviceRegistry"; serviceRegistry.getService("modulename", "servvice").then( service => { let myServiceInstance = new service(); myServiceInstance.init(p,d) }) Mycomponent.spec.js jest.mock('external/serviceRegistry', () => { return { getService: jest.fn(() =>

问题 I am trying to write a unit test case using jest and need to mock the below pattern . I am getting TypeError: is not a constructor. Usecase : My usecase is as mentioned below MyComponent.js : import serviceRegistry from "external/serviceRegistry"; serviceRegistry.getService("modulename", "servvice").then( service => { let myServiceInstance = new service(); myServiceInstance.init(p,d) }) Mycomponent.spec.js jest.mock('external/serviceRegistry', () => { return { getService: jest.fn(() =>

问题 I have the following question, I don't know if its possible to get the result using Jest + snapshot feature. I have a React components and I'm using Jest to test it. I want the snapshot to include css style not className . Currently my snapshot is like: <div id="main" className="myClass"></div> I would like to have it like: <div id="main" style={Object {"float": "right"}}></div> My App its using webpack ( sass-loader ) for parsing scss , so over there there are no issues. It is possible to