Playwright
Playwright is an open-source library for automating Chromium, Firefox, and WebKit browsers and testing web applications across supported programming languages.
Bootstrapping Microservices, Second Edition: With Docker, Kubernetes, GitHub Actions, and Terraform
Playwright is a browser automation and end-to-end testing framework.
- How it is used
- Tests a running microservices application through its browser frontend from the customer's point of view.
- How deep it goes
- Works through fixtures, page navigation, DOM locators, assertions, and test commands; stops at Playwright basics rather than its full feature set.
- Examples
- Uses a seeded two-video list to check displayed links, then runs the suite through Playwright commands or an npm script.
- What you can do after
- Apply it via Playwright to check a running frontend against fixture data and obtain terminal test results.
Build Financial Software with Generative AI (From Scratch)
Playwright is a cross-browser automation and testing tool for web applications that supports multiple programming languages and operating systems.
- How it is used
- Validates integrated web applications through end-to-end, integration, and regression tests before release.
- How deep it goes
- Demonstrates installation, interactive exploration, selectors, waits, assertions, screenshots, fixtures, and API-response checks.
- Examples
- Exercises login validation, exception-message rendering, ACH searching, response checking, browser fixtures, and screenshots.
- What you can do after
- Diagnose/debug with it by reproducing browser interactions, checking rendered states and responses, and capturing screenshots.
Read how Build Financial Software with Generative AI (From Scratch) explains Playwright →
Related concepts
- end-to-end testingimplements · End-to-end testing evaluates a complete system workflow across integrated components, from an external or user-relevant input to an observable outcome.
- npm testused by · npm test is the npm command that runs a package’s configured test script, conventionally used to execute automated tests.
- abilityused by · An ability is a Screenplay capability that enables an actor to interact with a system through a particular mechanism, such as a browser or API.
- integration testuses · An integration test evaluates whether multiple software components, or a component and an external dependency, interact and behave correctly together.
- Jestalternative to · Jest is a JavaScript testing framework for defining, running, and asserting automated tests.
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