---
title: "Making Assertions"
description: "Verify application state with AI-powered assertions"
icon: "check-double"
---

## Making Assertions

Use AI-powered assertions to verify application state:

```javascript
// Verify visibility
await testdriver.assert('login page is displayed');
await testdriver.assert('submit button is visible');
await testdriver.assert('loading spinner is not visible');

// Verify content
await testdriver.assert('page title is "Welcome"');
await testdriver.assert('success message says "Account created"');
await testdriver.assert('error message contains "Invalid email"');

// Verify state
await testdriver.assert('checkbox is checked');
await testdriver.assert('dropdown shows "United States"');
await testdriver.assert('button is disabled');

// Verify visual appearance
await testdriver.assert('submit button is blue');
await testdriver.assert('form has red border');
```

<Info>Assertions are not cached and always re-evaluated to ensure accuracy.</Info>