Why cy.url() assertions in Cypress? - Purpose & Use Cases

The Big Idea

What if your tests could instantly catch broken links without you lifting a finger?

The Scenario

Imagine you manually check if your website navigates to the right page by opening the browser, clicking links, and reading the URL in the address bar every time you make a change.

The Problem

This manual checking is slow and tiring. You might miss small typos or forget to check the URL after every action. It's easy to make mistakes and hard to repeat the checks exactly the same way each time.

The Solution

Using cy.url() assertions in Cypress lets you automatically check the current page URL during tests. It quickly confirms if navigation works as expected without opening the browser or reading the address bar yourself.

Before vs After

✗ Before

Open browser
Click link
Look at address bar
Say if URL is correct

✓ After

cy.url().should('include', '/dashboard')

What It Enables

This makes your tests faster, more reliable, and able to catch navigation errors automatically every time you run them.

Real Life Example

When you build an online store, you want to be sure clicking "Checkout" always takes users to the payment page. cy.url() assertions check this automatically so you don't lose customers due to broken links.

Key Takeaways

Manual URL checks are slow and error-prone.

cy.url() assertions automate URL verification in tests.

This ensures navigation works correctly every time you test.