Next we are going to detail the most common commands and methods when we are using Playwright with TypeScript. There are more, but these are the most useful.

CLI Commands

npx playwright test                        # Run all tests
npx playwright test file.spec.ts           # Run specific file
npx playwright test -g "login"             # Filter by pattern
npx playwright test --headed               # Show browser
npx playwright test --ui                   # UI mode
npx playwright test --debug                # Debug mode
npx playwright test --project=chromium     # Specific browser
npx playwright show-report                 # Open HTML report
npx playwright codegen https://example.com # Record tests

When working with third-party APIs, it’s not uncommon to receive different responses when calling the same endpoint. This can make it difficult to test the integration of our system with theirs. To simulate these behaviors and test our system’s response to them, we can use WireMock.

When working with Kafka, it is very convenient to verify that we are producing the message correctly if we are the producer. One way to do this is to validate/assert that the message has successfully landed in a topic.

When developing an application where certificates are used, it is often convenient to test it using a non-real system to verify that we are creating a good request with the certificate included. One way to do this is to simulate with WireMock a system which needs a valid certificate to respond correctly and validate it using Postman.

This is a collection of testing tools that we will be compiling, so this list may grow.