-
Book Overview & Buying
-
Table Of Contents
Hands-On Automated Testing with Playwright
By :
Whether it’s a simple login page or a complex signup process, making sure that form validation works correctly is important to create a smooth user experience. When you’re testing form validation, the goal is to mimic real-world user behavior. This means filling out form fields, submitting the form, and checking for things such as error messages, field highlights, or successful submissions.
Suppose you have a login form with username and password fields. You’d write a test to fill the form with invalid data and check whether the expected error message appears. Playwright’s page object is your main tool here. You can use methods such as locator.fill() to input text into fields, locator.click() to submit the form, and locator.locator() to target specific elements and check their state:
import { test, expect } from '@playwright/test';
test('Login with invalid credentials...