Jasmine vs Rstest

Jasmine is a free, open-source framework for testing JavaScript code in browsers and Node.js. Tests use JavaScript’s describe/it structure and expect matchers. The jasmine-core package has no external dependencies, and the framework does not rely on other JavaScript frameworks. For Node, developers can install the package locally with npm and run it using npx jasmine; the standalone distribution runs browser specs without other tools or a web server. Jasmine supports ES modules, and its Node setup can also load CommonJS modules. The jasmine-browser-runner supports interactive browser runs and CI execution with headless Chrome or Sauce Labs. It can also connect to Sauce Labs or a user’s own Selenium Grid as a remote browser grid. Runners can be configured, reporters and matchers customized, and spec order randomized. The project lists JavaScript and TypeScript support, parallel execution and built-in mocks. Browser and Node compatibility follows a rolling window, so older platforms may receive best-effort support or be dropped in minor releases. The FAQ notes that the unmaintained karma-jasmine adapter depends on jasmine-core 4.x, which can limit access to newer Jasmine features. The project uses the MIT License and directs users to GitHub for issues and contributions.

Rstest is a free, open-source testing framework for JavaScript and TypeScript, built on Rsbuild and Rspack. It bundles tests through Rspack’s dependency-graph build process and applies SWC transforms. Projects can reuse configuration from Rsbuild, Rslib, or Rspack, including aliases, transforms, and plugins. Tests run in Node.js, simulated DOM environments with jsdom or happy-dom, and real browsers. Browser Mode uses Playwright to run tests in Chromium, Firefox, and WebKit; an integration supports end-to-end tests against local, preview, or deployed URLs. Rstest can also load Module Federation remotes in Node, JSDOM, and Browser Mode. Its built-in tools include Jest-compatible assertions, snapshots, mocks, spies, lifecycle hooks, file-level isolation, reporters, filtering, and coverage reporting. For CI, it supports multi-project testing, sharding, blob report merging, and coverage thresholds. The Rstack VS Code extension lets users browse, run, and debug tests. The quick start requires Node.js 20.19.0 or newer, and recommends the Node.js LTS version. Rstest is released under the MIT license.