xUnit.net vs Jasmine

Free and open source

Free and open source

Free and open source. You pay in engineering time and CI minutes.

Free and open source. You pay in engineering time and CI minutes.

Everything, self-hosted

Everything, self-hosted

Category standard

.NET Foundation · since 2007

Established

OSS community · since 2010

• Per-test instance isolation eliminates a whole class of shared-state bugs by design.
• Idiomatic modern C# — no attribute soup.
• The default in current .NET project templates.

• Self-contained: spies, clocks and matchers with no extra packages.
• Runs directly in a browser without bundling.
• Extremely stable API — old suites keep working.

• Fewer built-in assertions than NUnit; most teams add FluentAssertions.
• The isolation model surprises developers migrating from NUnit.
• Parallelism defaults occasionally bite on integration tests.

• Feels dated; snapshot testing and modern mocking are absent or bolted on.
• Momentum has moved to Jest and Vitest, including within the Angular ecosystem.
• Weaker TypeScript ergonomics than newer runners.

New .NET projects.

Existing Angular codebases and browser-native test setups.