After updating, my previously passing unit tests now fail with the error: 'TypeError: this._renderer.addClass is not a function' across multiple tests, despite not using or importing the renderer i...

convert angular 7 project into angular universal while running "ng test" command giving error as "Incomplete: No specs found, , randomized with seed 48751". Tried different ways mention over stacko...

In my angular project, I have a function reloadPage(): void { window.location.reload(); } So when ever I need to reload the page, I used to call this function. Now I am trying to add the unit tes...

My component file has the following code @ViewChild('clusterCard', { static: false }) clusterCard: ElementRef; highLightTheClusterCard(point: PickupClusterPoint) { if (point) { const card: HTM...

While I was working on Angular 4 unit tests, one of the pages which uses google maps and agm package showed an error: An error was thrown in afterAll\n[object ErrorEvent] thrown Does anyone know w...

I'm trying to simulate a file Drop event for testing an angular directive but I cannot manage to create the DragEvent. it('should output file drop when file droped', () => { const file = new F...

I want to write a simple unit test to check if button is disable when certain value is null or empty. Below is my spec file: test.spec.ts import { async, ComponentFixture, TestBed } from '@ang...

I want to perform unit testing on this onSubmit function where the positive submission is leading to MatSnackbar with message, "Submitted Successfully". I am new to Jasmine Karma please g...

I try to understand how to test this function. From (err)=>{ line, it's showing as an uncovered statement. service.ts Deletevote(inp) { console.log(inp); return this.http.post(environment.ap...

When using provider overrides what is the alternative of the following now that TestBed.get has been deprecated in Angular 9 TestBed.configureTestingModule({ providers: [{ provide: MyClass, useCl...

In my Angular app I have a <select> bound to a reactive form like the following: <form [formGroup]="myForm"> <select formControlName="myControlName" id="my-...

I have a service which uses a httpClient that I want to test: @Injectable({ providedIn: 'root' }) export class TodolistService { constructor(private http: HttpClient) { } getTodoLists(): Obser...

I want to do a few unit tests there is a formGroup passing as input from parent component to a child component, how to do it. app.componet.ts import { Component, Input } from '@angular/core'; imp...

After upgrading the Angular project to Angular 10, ngRx effects unit tests started breaking. Following is the error after upgrade: Running into the same issue, Follow the solution. Thanks,

Given this component that creates a service locally @Component({ <removed for clarity> providers: [ { provide: 'IMyService', useClass: MyService }, ] }) export class MyComponent implemen...

There is an option in .angular-cli.json to disable the automatic creating of *.spec files e.g. for components, see json schema. This is a really nice feature because personally (this is just my op...

I have a component with a setTimeOut function inside a ngOnInit function. To write unit test cases for that I'm using tick and fakeAsync to fast forward the setTimeOut. But, it's not getting execut...

I am unit testing an angular application and there is a service I need to mock. I am able to mock service methods without any problem but when I try to mock properties in the same way it give me er...

I created an Angular Directive, that uses CSS selectors to automatically trim inputs in my application, it looks like so... import { Directive, HostListener, forwardRef } from '@angular/core'; imp...

I have written first test to test service class: service class: import { Injectable } from '@angular/core'; import {HttpClient} from '@angular/common/http' import {IComment} from "../../models/co...

The question I have a button component that accepts a promise and disables the button until the promise has resolved and I want to write a unit test for this functionality. My Code My button c...