How do I apply the slowMo setting to a single test in Playwright?


Sure, you can apply slowmo to just one test in Playwright! You can use the test.slow() method to mark a specific test as "slow". This gives it triple the default timeout. Here's how you do it:

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

test('slow test', async ({ page }) => {
  // Your test code goes here

By using test.slow() in your test function, it gets more time to complete before timing out. But remember, you can't use test.slow() in a beforeAll or afterAll hook.

If you want to apply slowmo to all tests in a file or a test.describe() group, you can use the conditional version of test.slow(). Here's how:

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

test.slow(({ browserName }) => browserName === 'webkit');

test('slow in WebKit 1', async ({ page }) => {
  // Your code goes here

test('skip in WebKit 2', async ({ page }) => {
  // Your code goes here

In this case, all tests in this file or group will be "slow" if the condition browserName === 'webkit' is true. This lets you apply slowmo to specific tests based on certain conditions. So, with test.slow(), you can mark a specific test as "slow" or apply it conditionally to multiple tests.


Thank you!
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Rayrun is a community for QA engineers. I am constantly looking for new ways to add value to people learning Playwright and other browser automation frameworks. If you have feedback, email luc@ray.run.