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toHaveProperty()
The toHaveProperty() method asserts that an object has a specific property, optionally with a specific value. It supports both simple property names and nested property paths.
Syntax
expect(actual).toHaveProperty(keyPath);
expect(actual).toHaveProperty(keyPath, value);
expect(actual).not.toHaveProperty(keyPath);
expect(actual).not.toHaveProperty(keyPath, value);Parameters
Returns
Description
The toHaveProperty() method checks if an object has a specific property. The property path can be:
- A simple property name (e.g.,
'name') - A nested property path using dot notation (e.g.,
'user.address.city') - An array of property keys (e.g.,
['user', 'address', 'city'])
If a value is provided, it also checks that the property has that exact value.
Usage
import { expect } from 'https://jslib.k6.io/k6-testing/0.6.1/index.js';
export default function () {
const user = {
id: 123,
name: 'John Doe',
email: 'john@example.com',
active: true,
};
// Check property existence
expect(user).toHaveProperty('id');
expect(user).toHaveProperty('name');
expect(user).toHaveProperty('email');
expect(user).toHaveProperty('active');
// Check missing property
expect(user).not.toHaveProperty('phone');
expect(user).not.toHaveProperty('address');
}
