How do you choose the right test automation framework for a new project?

Decision checklist:

1. What are you testing?

• UI browser testing → Playwright (modern, first choice) or Cypress (if JS-only and no multi-tab/multi-browser needed) or Selenium (if Java/Python team, legacy support needed)
• API testing → REST Assured (Java), Supertest (Node), Karate (language-agnostic DSL), or direct HTTP clients
• Mobile → Appium, Detox (React Native), XCUITest/Espresso (native)

2. What language does the dev team use? Match the test language to the application language. QA borrowing the dev team's build tooling, CI config, and utility libraries saves weeks of setup. A Java shop that switches to a Node test framework now has two completely separate toolchains to maintain.

3. What's the team's existing expertise? A team fluent in BDD + Java → Cucumber-JUnit. A TypeScript team → Playwright. Don't impose a framework that requires a 6-week learning curve before any value is delivered.

4. What does the CI/CD stack need?

• GitHub Actions / Jenkins / CircleCI all support all major frameworks, but check if the CI image has the right browser versions, JVM, Node, etc.
• Parallel execution requirements → Playwright has it built in; TestNG/JUnit need explicit config.

5. Reporting and test-management integration:

• Need Allure → supported by Playwright, Cypress, Selenium, REST Assured
• Need Xray integration → needs Cucumber JSON or JUnit XML output

6. Short-term vs long-term trade-offs:

• Playwright: fastest to start, excellent DX, maintained by Microsoft
• Cypress: great DX for JS teams, limited to single browser tab, no cross-domain without config
• Selenium: most flexible, steeper boilerplate setup

Red flags: Choosing a framework because "it's what I know" without assessing fit, or picking the most complex option when a simpler one covers the requirements.