Guide to creating unit tests for document.URL in Angular 5 specifications

Currently attempting to simulate document.URL = 'dashboard'; however, encountering an issue where it states that I can't assign to url because its readonly property. This problem arose while writing jasmine test cases click here for image description

Answer №1

To improve your code quality, it is suggested to avoid direct access to the document object and instead inject its custom provider from @angular/common.

import { DOCUMENT } from '@angular/common';

Then, you can inject it in your constructor like this:

constructor(@Inject(DOCUMENT) private document: Document) {}

This way, you can easily mock the document object and set properties such as URL or any other property as required. This approach is similar to injecting other services into your components or services.

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