Testing ​

If a project has an established testing framework, use that. Try running them. See where something breaks if you make a change. Does it break? Does it flag an error in the test? If not, add a test to check for the existence of your change.

If a project doesn't have an existing testing suite in place, many good options to consider:

• Playwright
• Cypress
• Selenium (still) a great swiss-army knife for web testing and automation