Lambdatest Agent Skills

Example 2: Run Selenium tests on LambdaTest cloud

"Run my Selenium Java tests on Chrome, Firefox, and Safari on LambdaTest with OS Windows 11 and macOS Sonoma"

The skill will configure RemoteWebDriver with LambdaTest capabilities, read LT_USERNAME and LT_ACCESS_KEY from environment variables, and set up a parallel TestNG suite.

Example 3: Migrate Selenium tests to Playwright

"Migrate my existing Selenium Python tests to Playwright"

The skill uses test-framework-migration-skill to map Selenium locators, waits, and assertions to their Playwright equivalents, preserving test intent while updating syntax.

Example 4: Set up pytest with fixtures

"Create a pytest test suite for the payments API with fixtures and parametrized test cases"

The skill generates a conftest.py with shared fixtures, parametrized test cases using @pytest.mark.parametrize, and a pytest.ini config with coverage reporting.

Best Practices

• ✅ Always use environment variables for cloud credentials (LT_USERNAME, LT_ACCESS_KEY) — never hardcode them
• ✅ Use Page Object Model (POM) to keep test logic separate from UI selectors
• ✅ Prefer explicit waits over fixed sleep() calls in all frameworks
• ✅ Run tests in parallel where the framework supports it to reduce execution time
• ✅ Always capture screenshots and logs on test failure for easier debugging
• ✅ Match dependency versions to what each framework officially recommends — avoid mixing major versions
• ❌ Don't write tests that depend on test execution order
• ❌ Don't hardcode URLs, credentials, or environment-specific values inside test files
• ❌ Don't skip writing assertions — a test without assertions is not a test
• ❌ Don't ignore flaky tests — investigate and fix root cause rather than adding retries as a permanent fix

Limitations

• This skill is an index and trigger guide. The full implementation details for each framework live in the individual skill files at LambdaTest/agent-skills.
• This skill does not replace framework-specific documentation, environment setup, or expert QA review.
• Cloud execution examples assume a valid LambdaTest / TestMu AI account. Stop and ask the user for their setup details if credentials or target environments are unclear.
• Mobile testing skills (Appium, Espresso, XCUITest, Flutter, Detox) require platform-specific toolchains (Android SDK, Xcode) that must be installed separately.

Security & Safety Notes

• Never include LT_USERNAME, LT_ACCESS_KEY, API tokens, or any credentials in generated code. Always reference them via environment variables.
• When generating CI/CD pipelines, store secrets in GitHub Actions Secrets or equivalent — never in plaintext YAML.
• Installation commands (npm install, pip install, mvn install) should only be run in local development or authorized CI environments.

Common Pitfalls

• Problem: Tests pass locally but fail on CI Solution: Ensure headless mode is enabled in CI, and that browser versions match between local and CI environments. Use the framework's built-in CI detection where available.

• Problem: Flaky tests due to timing issues Solution: Replace sleep() with explicit waits — waitForSelector in Playwright, WebDriverWait in Selenium, cy.get().should() in Cypress.

• Problem: Cloud tests fail with authentication errors Solution: Verify LT_USERNAME and LT_ACCESS_KEY are correctly set as environment variables and match the credentials on the LambdaTest dashboard.

• Problem: Wrong browser capabilities for cloud execution Solution: Use the LambdaTest Capabilities Generator at https://www.lambdatest.com/capabilities-generator/ to get the correct capability object for your target browser and OS.

• Problem: Mobile tests fail with "device not found" Solution: For local runs, verify the emulator/simulator is running and adb devices (Android) or Simulator is active (iOS). For cloud runs, check the device name matches exactly what LambdaTest supports.

Related Skills

• @test-driven-development — Use when you want to design tests before writing implementation code
• @testing-patterns — Use for general testing design patterns and strategies
• @cicd-pipeline-skill — Use when setting up end-to-end CI/CD pipelines with test automation
• @debugging-strategies — Use when diagnosing systematic test failures