Karma Test Requirement: make sure to incorporate either "BrowserAnimationsModule" or "NoopAnimationsModule" when using the synthetic property @transitionMessages within your application

TEST FILE

import { async, ComponentFixture, TestBed } from 
'@angular/core/testing';

import { BrowserAnimationsModule } from '@angular/platform- 
browser/animations';

import { ManagePageComponent } from './manage-page.component';
import { MatIconModule } from '@angular/material/icon';
import { RouterTestingModule } from '@angular/router/testing';
import {MatTableModule} from '@angular/material/table';
import { MatTabsModule } from '@angular/material/tabs';
import { HttpClientModule } from '@angular/common/http';

describe('ManagePageComponent', () => {
  let component: ManagePageComponent;
  let fixture: ComponentFixture<ManagePageComponent>;

 beforeEach(async(() => {

    TestBed.configureTestingModule({
      declarations: [ ManagePageComponent ],
      imports: [
        BrowserAnimationsModule,
        RouterTestingModule,
        MatIconModule,
        MatTableModule,
        MatTabsModule,
        HttpClientModule,
      ],
    })
    .compileComponents();
  }));

  beforeEach(() => {
    fixture = TestBed.createComponent(ManagePageComponent);
    component = fixture.componentInstance;
    fixture.detectChanges();
  });

  it('should create', () => {
    expect(component).toBeTruthy();
  });
});

component file

import { Component, OnInit } from '@angular/core';
import { MatIconModule } from '@angular/material/icon';
import { Router, ActivatedRoute } from '@angular/router';


@Component({
  selector: 'app-manage-page',
  templateUrl: './manage-page.component.html',
  styleUrls: ['./manage-page.component.scss'],
})
export class ManagePageComponent implements OnInit {
  goEdit() {
    this.router.navigate(['manage', 'edit']);
  }
  constructor(private router: Router) { }

  ngOnInit() {
  }

}

HTML

<div class="jumbotron">
  <h1>Create and Edit</h1>
  <p>What inspires you today...</p>
  <div class="add-button">
    <div class="sub-button tl" (click)="goEdit()">
      <mat-icon>work</mat-icon>
    </div>
    <div class="sub-button tr" (click)="goEdit()">
      <mat-icon>description</mat-icon>
    </div>
    <div class="sub-button bl" (click)="goEdit()">
      <mat-icon>description</mat-icon>
    </div>
    <div class="sub-button br" (click)="goEdit()">
      <mat-icon>invert_colors</mat-icon>
    </div>
  </div>
</div>
 <div class="container">
  <div class="row">
    <div class="col-md-12">
      <router-outlet></router-outlet>
    </div>
  </div>
</div> 

The application functions properly, however, the error only manifests during Karma test. I have included BrowseAnimationsModule in the app.module.ts file within the imports: [] array. Despite trying various solutions found online, none have resolved my issue… Feeling desperate...

I am utilizing Angular CLI and have included "@angular/animations": "^6.1.3" in the package.json.

Answer №1

When I encountered this issue, I found that importing NoopAnimationsModule in the spec file resolved it for me.

Make sure to swap out BrowserAnimationsModule with NoopAnimationsModule.

import { NoopAnimationsModule } from '@angular/platform-browser/animations';

In your beforeEach function, make the following changes:

 imports: [
        NoopAnimationsModule,
        RouterTestingModule,
        MatIconModule,
        MatTableModule,
        MatTabsModule,
        HttpClientModule,
      ],

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Angular directive does not focus on the text box

I've been working on creating text boxes using a directive and I want only the first text box to be in focus. To achieve this, I am utilizing another directive for focus control. Below is my script: <script> angular.module('MyApp',[]) ...

Determine whether the request was made using ajax or traditional non-ajax methods

While testing the PHP code below, I noticed that the headers in the request do not indicate that it is JavaScript sending the request instead of a non-JavaScript user: Accept:*/* Accept-Encoding:gzip,deflate,sdch Accept-Language:en-US,en;q=0.8 AlexaToolba ...

Performing a jQuery ajax POST request to log users in

I am currently facing a challenge with my .ajax request being made through a form for the purpose of logging in. Upon submitting my form, I am not receiving any response from either the success or error functions. Interestingly, even when I inserted an a ...

Expanding mat-sidenav by clicking a button located outside of mat-sidenav-container

I attempted to replicate the mobile-friendly design seen in the Angular Material teams' example found on this link. Here is how I structured my component: <app-component-0></app-component-0> <div class="d-lg-none"> <button ...

Using Typescript in a definition file requires classes and interfaces to be included in the compiled .js file

I am currently working on a Typescript project that consists of two crucial files: app.ts models.d.ts The initial lines of code in app.ts are as follows: ///<reference path="models.d.ts"/> 'use strict'; import * as fs from 'async-f ...

The width of Kendo Angular 2 grids pager and top header does not increase when scrolling

Our grids now have the horizontal scrolling feature enabled through CSS (kendo-grid {overflow: auto;}). However, we've noticed that the pager and top header of the grids do not expand their width when scrolling. Take a look at the screenshot below: ...

Can a lightweight database be utilized in a Nativescript project focused on code sharing?

Currently, I am in the process of launching a new code sharing project using nativescript. My main goal is to create an offline app suitable for both tablets and desktops. I have successfully implemented code sharing following this guide: . Now, my focus ...

When would this be required within JavaScript or Angular?

Being new to JavaScript, I have come across information stating that the value of this changes based on how a function is invoked. However, I am confused about when it is necessary to use this and when it is not. Some code examples I've seen utilize t ...

What will the relationships be like between the models using Sequelize?

Hello there, I'm seeking assistance in establishing the correct associations between models using Sequelize. In my project, I have three types of products, each with unique attributes as well as shared attributes. ...

How to extract a string value from an observable array in Angular2 NativeScript?

I inserted JSON data into an observable array. My goal is to extract only the address from ShowData, specifically as a string value based on its position. ShowData.ts: class ShowData{ constructor(public id:number, public name:string, public address:s ...

Reset the input field once the message has been successfully sent

My goal is to clear the form message input field after the form is sent. However, it seems to be clearing the data before it has a chance to be sent. Here is the code I'm using: <script> $(function () { $('form#SendForm'). ...

Eliminate element from collection utilizing singular term

Can you please advise on the best way to remove an element from an array without using the array index, such as array[0]? ...

Leveraging the power of JavaScript's .map(...) method in a

Within my React code, I have a structure similar to the following: {elements.map((element) => { return ( <div> {renderDate(element.date)} </div> ) }})} This structure calls the renderDate function defined as: co ...

Finding the smallest value for each day in MongoDB using Mongoose

I have a collection in my MongoDB database called measured_data that includes entries for each day containing the fields measured_at and value. I am looking for a way to use Mongoose to find the lowest value recorded for each day. Any insights or suggest ...

Next.js 13 app directory experiences 404 Not Found error due to dynamic routing issues

I recently built a straightforward to-do app using Next.js 13 paired with TypeScript. The process involved creating an array of objects, each comprising an id string and a name string. Subsequently, I iterated through the list and showcased the names withi ...

Developing a user authentication system with TowerJS

As a front-end designer/developer with limited MVC experience, I am looking to create a login form using TowerJS. Following the documentation, my app includes a model named "User": class App.User extends Tower.Model @field "email", type: "String" @fie ...

You cannot call this expression. The data type 'Boolean' does not have any callable signatures

As I delve into learning a new set of technologies, encountering new errors is inevitable. However, there is one particular type of error that keeps cropping up, making me question if I am approaching things correctly. For instance, I consistently face t ...

PWA JavaScript struggling with GPS geolocation coordinates

I am experiencing issues with the GPS coordinates being stuck when using geolocation in a Progressive Web App (PWA). Sometimes, the coordinates get stuck at the previous location, even if the user has moved since then. I suspect that this is due to the GP ...

Exploring the Power of v-for in Nested Objects with Vue

I currently have a dataset in the following structure: itemlist : { "dates": [ "2019-03-15", "2019-04-01", "2019-05-15" ], "id": [ "arn21", "3sa4a", "wqa99" ], "price": [ 22, 10, 31 ] } My goal is t ...

Found inconsistent results when running a npm script globally versus inline

After running some tests, I discovered that tslint is functioning correctly when using the following command: tslint -c tslint.json --project tsconfig.json 'src/**/*.ts' However, when attempting to integrate it into an npm script, it appears th ...