1# Running Playwright Tests
2 
3To run Playwright tests, use the `npx playwright test` command, or a package manager script. To avoid opening the interactive html report, use `PLAYWRIGHT_HTML_OPEN=never` environment variable.
4 
5```bash
6# Run all tests
7PLAYWRIGHT_HTML_OPEN=never npx playwright test
8 
9# Run all tests through a custom npm script
10PLAYWRIGHT_HTML_OPEN=never npm run special-test-command
11```
12 
13# Debugging Playwright Tests
14 
15To debug a failing Playwright test, run it with `--debug=cli` option. This command will pause the test at the start and print the debugging instructions.
16 
17**IMPORTANT**: run the command in the background and check the output until "Debugging Instructions" is printed. Make sure to stop the command after you have finished.
18 
19Once instructions containing a session name are printed, use `playwright-cli` to attach the session and explore the page.
20 
21```bash
22# Run the test
23PLAYWRIGHT_HTML_OPEN=never npx playwright test --debug=cli
24# ...
25# ... debugging instructions for "tw-abcdef" session ...
26# ...
27 
28# Attach to the test
29playwright-cli attach tw-abcdef
30```
31 
32Keep the test running in the background while you explore and look for a fix.
33The test is paused at the start, so you should step over or pause at a particular location
34where the problem is most likely to be.
35 
36Every action you perform with `playwright-cli` generates corresponding Playwright TypeScript code.
37This code appears in the output and can be copied directly into the test. Most of the time, a specific locator or an expectation should be updated, but it could also be a bug in the app. Use your judgement.
38 
39After fixing the test, stop the background test run. Rerun to check that test passes.
40