PHPUnit vs Mocha

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

Sebastian Bergmann · since 2004

Widely used

OpenJS Foundation · since 2011

• Universal in PHP — every framework builds on it.
• Mature mocking, data providers and coverage integration.
• Well documented and extremely stable.

• 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.

• Major versions drop older PHP releases aggressively, forcing upgrade work.
• Verbose compared to newer wrappers such as Pest.
• Coverage requires an extension, which slows runs significantly.

• 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.

Every PHP project, directly or through a wrapper.

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