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nix-unit's Introduction

nix-unit

This project runs an attribute set of tests compatible with lib.debug.runTests while allowing individual attributes to fail.

Why use nix-unit?

  • Simple structure compatible with lib.debug.runTests

  • Allows individual test attributes to fail individually.

Rather than evaluating the entire test suite in one go, serialise & compare nix-unit uses the Nix evaluator C++ API. Meaning that we can catch test failures individually, even if the failure is caused by an evaluation error.

  • Fast.

No additional processing and coordination overhead caused by the external process approach.

Comparison with other tools

This comparison matrix was originally taken from Unit test your Nix code but has been adapted. Pythonix is excluded as it's unmaintained.

Tool Can test eval failures Tests defined in Nix in nixpkgs snapshot testing(1)
Nix-unit yes yes yes no
runTests no yes yes no
Nixt no yes no no
Namaka no yes yes yes
  1. Snapshot testing

Documentation

https://nix-community.github.io/nix-unit/

nix-unit's People

Contributors

adisbladis avatar mic92 avatar github-actions[bot] avatar mergify[bot] avatar dependabot[bot] avatar renovate[bot] avatar jsoo1 avatar bors[bot] avatar phaer avatar andreabedini avatar zhaofengli avatar tomberek avatar davhau avatar julienmalka avatar raitobezarius avatar nrdxp avatar hsjobeki avatar

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