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Tests for Comments Component

Explore updating and adding tests for the Comments component in Angular, focusing on mocks, spies, and DOM assertions to ensure proper functionality and error handling.

We'll cover the following...

Before providing our users the ability to create comments, let’s update our test suite to get our tests back to a passing state.

Below is our updated code. Use this to make further changes.

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Tests for comments component

Update tests

Follow the steps below to update the tests.

  1. Add our necessary imports.
TypeScript 3.3.4
// src/app/comment-create/comment-create.component.spec.ts
import { By } from '@angular/platform-browser';
import { of, throwError } from 'rxjs';
import { CommentCreateModule } from './comment-create.module';
import { CommentsService } from '../services/comments/comments.service';
import { Comment } from '../services/comments/comment';
  1. Add our mock for CommentsService. Create a spy for our service method,
...