xUnit.net vs Jasmine
Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
Free and open source
Open sourceFree and open source
Open sourceWhat drives the bill
The metric that actually scales your invoice.
Free and open source. You pay in engineering time and CI minutes.
Free and open source. You pay in engineering time and CI minutes.
Free tier
Everything, self-hosted
Everything, self-hosted
Open source
Apache-2.0
MIT
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Category standard
.NET Foundation · since 2007
Established
OSS community · since 2010
Strengths
- 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.
Limitations
- 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.
Best for
New .NET projects.
Existing Angular codebases and browser-native test setups.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.