Samples

Each public sample demonstrates the same Parity proof in a different ecosystem. The samples are split into individual repositories so each one can install the public Packagist package during CI and prove the release path without private tokens.

Sample	Language/framework	Test runner	Coverage input	Repository
PHP	Plain PHP	Fixture coverage	Parity JSON	php-sample
Laravel	Laravel-style PHP	Fixture coverage	Parity JSON	laravel-sample
TypeScript	TypeScript utility	Fixture coverage	Parity JSON	typescript-sample
AdonisJS	AdonisJS-style TypeScript	Fixture coverage	Parity JSON	adonisjs-sample
Rust	Plain Rust	Fixture coverage	Parity JSON	rust-sample
Cargo	Cargo project	Cargo	Parity JSON	cargo-sample
PHPUnit	PHP	PHPUnit	Parity JSON	phpunit-sample
Pest	PHP	Pest	Parity JSON	pest-sample
Jest	JavaScript	Jest	Parity JSON	jest-sample
Mocha	JavaScript	Mocha + NYC	Parity JSON	mocha-sample
Vitest	TypeScript	Vitest	Parity JSON	vitest-sample

The Proof

Every sample is built around the same coverage shape:

Scope	Coverage
Project/global coverage	80%
Weaker file, all tests	70%
Weaker file, matching test only	40%
Stronger file, all tests	90%
Stronger file, matching test only	90%

This proves that healthy global coverage can hide thin direct tests. Parity exposes that gap with matched-coverage and coverage-attribution.

Attribution Format

The samples use parity-coverage.json, a language-neutral attribution file:

{
  "version": 1,
  "globalPercent": 80,
  "files": [
    {
      "path": "src/formatCurrency.ts",
      "coveragePercent": 70,
      "totalExecutableLines": 10,
      "lines": [
        {
          "line": 1,
          "coveredBy": ["formatCurrency.test::coversPrimaryBehavior"]
        }
      ]
    }
  ]
}

CI Contract

Each sample runs the public package:

composer global require testparity/parity --prefer-dist --no-progress --no-interaction
parity check --format=json

That makes the samples useful as release proof, not just documentation examples.