How do fixtures in Playwright Test help in creating a more succinct API for interacting with objects during tests?

Answer

Sure, @playwright/test lets you create fixtures for a more succinct API to interact with objects during tests.

What are Fixtures?

Fixtures help set up the environment for each test. They handle setup and teardown in one place, making test writing easier.

Reusability

You can define a fixture once and reuse it across multiple tests. For example, you could create a TodoPage fixture and use it in all your tests.

On-Demand

Fixtures are on-demand. @playwright/test only sets up the fixtures needed by each test. So, you can define as many fixtures as you want without affecting other tests.

Composability

Fixtures are composable. They can depend on each other to provide complex behaviors. If you have multiple objects to interact with during your tests, you can create separate fixtures for each and compose them together.

import { test } from '@playwright/test';

test.describe('Todo tests', () => {
  test('should add a todo item', async ({ TodoPage }) => {
    await TodoPage.addTodo('Buy milk');
    // ...
  });

  test('should complete a todo item', async ({ TodoPage }) => {
    await TodoPage.completeTodo('Buy milk');
    // ...
  });
});

In this example, TodoPage is a fixture that provides a succinct API for interacting with the todo list on the page.

So, @playwright/test gives you the flexibility to create custom fixtures for a more succinct API to interact with objects during tests.