MikeMirzayanov/testlib

Health v2 · maintenance only

Adoption not part of the score

1742 stars · 498 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A C++ header-only library for building competitive programming problem infrastructure: checkers, validators, generators, and interactors. It is the de facto standard used by Codeforces, ICPC, and Polygon-based contest preparation.

Use cases

• write a checker to judge contestant output for a programming contest problem
• generate random test cases for a competitive programming problem
• validate that problem input files follow the stated constraints
• build an interactive problem where the solution communicates with an interactor
• prepare problems for Codeforces or Polygon
• compare participant answers with the jury answer while ignoring whitespace

When to choose

• you are setting or preparing problems for a competitive programming contest
• you need standardized checkers, validators, generators, or interactors compatible with Codeforces/Polygon
• you want battle-tested judging components used by ICPC and national olympiads

When to avoid

• you need general-purpose software testing or unit test frameworks
• your project has nothing to do with competitive programming or contest judging
• you are not working in C++

Facets

library · maturity stable

testing data-generation parser developer-tools developer-tools education testing cpp cross-platform cli competitive-programming codeforces icpc ioi polygon checkers validators generators interactors test-data algorithms

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