Angular Unit Tests-Angular Testing Guide

Example

Verifying a component's template rendering and interaction handling, like ensuring a button click updates the view correctly.

Scenario

In a user profile component, you might test that clicking the 'Edit' button shows an input form for updating user details.

Example

Ensuring a data service correctly fetches and processes data from an API.

Scenario

Testing an authentication service to confirm it properly handles login scenarios, including success, failure, and error handling.

Example

Checking a custom directive's behavior, such as a tooltip directive that shows additional information on hover.

Scenario

In a directive that conditionally applies styling, you might test that the correct style is applied based on specific input criteria.

Example

Confirming that a custom pipe transforms data as expected, like a pipe that formats dates in a specific style.

Scenario

Testing a currency formatting pipe to ensure it correctly converts numbers to a currency format, considering various locales and currencies.