Answer

Using Playwright's Assertion Methods to Check List Order

You can use Playwright's assertion methods to check if a list of names is sorted in ascending or descending order. Here's how:

Ascending Order

First, get a reference to your page object and locate your list element. Then, define an array of expected names in ascending order. Use the toHaveText assertion to check if the list elements match the expected names.

const page = await browser.newPage();
const nameList = await page.locator('ul > li');
const expectedNamesAscending = ['Alice', 'Bob', 'Charlie'];
await expect(nameList).toHaveText(expectedNamesAscending);

If the elements match 'Alice', 'Bob', and 'Charlie' in this exact order, the assertion will pass. If not, it will fail.

Descending Order

For descending order, define an array of expected names in descending order. Use the toHaveText assertion to check if the list elements match these names.

const expectedNamesDescending = ['Charlie', 'Bob', 'Alice'];
await expect(nameList).toHaveText(expectedNamesDescending);

If the elements match 'Charlie', 'Bob', and 'Alice' in this exact order, the assertion will pass. If not, it will fail.

So, with Playwright's toHaveText assertion, you can easily check if a list of names is sorted in ascending or descending order.