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testcritic

TestNG vs Mocha

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 source

Free and open source

Open source

What 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

JavaKotlin
JavaScriptTypeScript

Platforms

WebAPI
WebAPI

Fits teams

Scale-up / mid-marketEnterprise
StartupScale-up / mid-marketEnterprise

Adoption

Widely used

TestNG Team · since 2004

Widely used

OpenJS Foundation · since 2011

Strengths

  • Mature parallel-execution and grouping model, ideal for large Selenium suites.
  • Data providers make data-driven testing straightforward.
  • Test dependencies and ordering, which JUnit deliberately avoids.
  • Small, stable and predictable — it does one job and has done it the same way for years.
  • Pick your own assertions, mocks and coverage rather than accepting a bundle.
  • Excellent async and reporter support.

Limitations

  • XML suite configuration is dated and error-prone.
  • Test dependencies encourage ordering coupling that makes suites fragile.
  • Community momentum favours JUnit 5 for new projects.
  • No built-in mocking, snapshots, coverage or parallel-by-default execution.
  • Assembling and documenting the stack is work every new project repeats.
  • Fewer new projects adopt it; momentum sits with Vitest and Jest.

Best for

Java Selenium automation frameworks and large integration suites.

Node.js services where you want explicit control over every part of the test stack.

All of these integrate with: Jenkins.

Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.