unit-testing

How to unit test this function without mock asserts?

三世轮回 提交于 2021-01-29 03:00:51
问题 I was curious how someone would approach unit testing the following pseudo coded function or even refactor to make it easier to test the different pieces. To begin, we have a large code base that, at a high level, is broken down into the following projects: Orchestrations -> Services -> Repositories -> Database -> Behaviors The current example I'm working with is at the orchestration level there is a function as follows: FUNCTION Process (Options) IF Options.Option1 THEN IF Service1

How to mock a module with typescript namespace?

最后都变了- 提交于 2021-01-29 02:51:55
问题 This is the function under test: import * as firebase from 'firebase'; function signInWithGoogle() { var provider = new firebase.auth.GoogleAuthProvider(); firebase.auth().signInWithRedirect(provider); } firebase has below type definition: declare namespace firebase.auth and function auth(app?: firebase.app.App): firebase.auth.Auth; jest.mock('firebase', () => { // Don't know how to mock, what should be returned? }) I need mock firebase.auth.GoogleAuthProvider() , firebase.auth() and

Allow a mock class to inherit from a final class

牧云@^-^@ 提交于 2021-01-29 02:50:47
问题 We may declare a final/sealed non-inheritable class using the new C++ keyword final . class Generator final { }; This class may inherit from other, may or may not have virtual (inherited or not). But, how to make it final , yet allow one class to inherit from it? We mostly need to derive a mock class from real class (with or without late-binding, hence virtual isn't important). How to make it work: class MockGenerator : Generator{}; But disallow any other inheritance? 回答1: But, how to make it

Create Junit test for Void method

和自甴很熟 提交于 2021-01-28 20:33:55
问题 I am learning unit testing, I have some confusion, I have one Void method, Can you please explain to me how can I create a unit test for this method. public void eat(Food food){ mAmountOfEatenFood += food.eatFood(mNeededAmountOfFood - mAmountOfEatenFood); if(mAmountOfEatenFood == mNeededAmountOfFood){ System.out.println(mName + " has eaten " + mAmountOfEatenFood + " and will not be hungry for a while.."); mAmountOfEatenFood = 0; mIsHungry = false; }else{ System.out.println(mName + " has eaten

Unit testing React component ref

房东的猫 提交于 2021-01-28 20:07:12
问题 Right now a component that looks like this: class Notification extends Component { constructor(props, context) { super(props,context); } render() { return (<NotificationSystem ref="notificationSystem"/>); } } export default Notification; And my unit test is: it('should make react notification system referencable', () => { const wrapper = mount(renderComponent(Notification)); expect(wrapper.ref('notificationSystem').length).toEqual(1); }) My renderComponent is: function renderComponent

catchError always gets called in HTTP unit testing

拟墨画扇 提交于 2021-01-28 17:53:41
问题 I have a service that makes a HTTP call and I am trying to write tests for it. The method in the service that I am trying to test looks like this // my.service.ts setUserAgreement(accept: boolean): Observable<any> { const data = { accept }; return this.http.post<any>(this.url, data, this.getHttpHeader('1')) .pipe( tap(x => this.logHttp(x)), map(x => this.parseHttp(x)), catchError(this.handleErrorInternal('setUserAgreement')) ); } My test file looks like this import { TestBed, async } from '

catchError always gets called in HTTP unit testing

£可爱£侵袭症+ 提交于 2021-01-28 17:47:58
问题 I have a service that makes a HTTP call and I am trying to write tests for it. The method in the service that I am trying to test looks like this // my.service.ts setUserAgreement(accept: boolean): Observable<any> { const data = { accept }; return this.http.post<any>(this.url, data, this.getHttpHeader('1')) .pipe( tap(x => this.logHttp(x)), map(x => this.parseHttp(x)), catchError(this.handleErrorInternal('setUserAgreement')) ); } My test file looks like this import { TestBed, async } from '

Testing multiple build variants simultaneously

老子叫甜甜 提交于 2021-01-28 14:32:42
问题 I created a Test case (using Espresso 2) for an application with multiple Flavors and I would like to run that Test for all the flavors simultaneously (or at least one after the other). Is that possible? At the moment I am only able to run the test for the current Build Variant selected, so I have to manually change the Build Variant and run the test again, one by one. Thank you very much. 来源: https://stackoverflow.com/questions/35917632/testing-multiple-build-variants-simultaneously

How can I mock a service within a React component to isolate unit tests in jest?

孤街浪徒 提交于 2021-01-28 13:08:55
问题 I'm trying to refactor a unit test to isolate a service that calls an API using axios from the component calling the service. The service is for the moment really simple: import axios from 'axios' export default class SomeService { getObjects() { return axios.get('/api/objects/').then(response => response.data); } } Here's a snippet of the component that calls the service: const someService = new SomeService(); class ObjectList extends Component { state = { data: [], } componentDidMount() {

How can I mock a service within a React component to isolate unit tests in jest?

柔情痞子 提交于 2021-01-28 13:00:13
问题 I'm trying to refactor a unit test to isolate a service that calls an API using axios from the component calling the service. The service is for the moment really simple: import axios from 'axios' export default class SomeService { getObjects() { return axios.get('/api/objects/').then(response => response.data); } } Here's a snippet of the component that calls the service: const someService = new SomeService(); class ObjectList extends Component { state = { data: [], } componentDidMount() {