localheinz/phpat

PHP Architecture Tester - Easy to use architectural testing tool for PHP :heavy_check_mark:

Easy to use architecture testing tool for PHP

Introduction 📜

PHP Architecture Tester is a static analysis tool to verify architectural requirements.

It provides a natural language abstraction to define your own architectural rules and test them against your software. You can also integrate phpat easily into your toolchain.

There are four groups of supported assertions: Dependency, Inheritance, Composition and Mixin.

ℹ️ Check out the section WHAT TO TEST to see some examples of typical use cases.

Installation 💽

Just require phpat with Composer:

composer require --dev phpat/phpat

Manual download

If you have dependency conflicts, you can also download the latest PHAR file from Releases.

You will have to use it executing php phpat.phar phpat.yaml and declare your tests in XML or YAML.

Configuration 🔧

You might want to setup a basic configuration:

# phpat.yaml
src:
  path: src/
tests:
  path: tests/architecture/

Complete list of options

Name	Description	Default
src path	The root path of your application	no default
src include	Files you want to be tested excluding the rest	all files
src exclude	Files you want to be excluded in the tests	no files
composer $ALIAS json	Path of your composer.json file (multiple)	no files
composer $ALIAS lock	Path of your composer.lock file (multiple)	no files
tests path	The path where your tests are	no default
options verbosity	Output verbosity level (0/1/2)	1
options dry-run	Report failed suite without error exit code (T/F)	false
options ignore_docblocks	Ignore relations on docblocks (T/F)	false
options ignore_php_extensions	Ignore relations to core and extensions classes (T/F)	true

Test definition 📓

There are different Selectors to choose which classes will intervene in a rule and a wide range of Assertions.

This could be a test with a couple of rules:

<?php

use PhpAT\Rule\Rule;
use PhpAT\Selector\Selector;
use PhpAT\Test\ArchitectureTest;
use App\Domain\BlackMagicInterface;

class ExampleTest extends ArchitectureTest
{
    public function testDomainDoesNotDependOnOtherLayers(): Rule
    {
        return $this->newRule
            ->classesThat(Selector::haveClassName('App\Domain\*'))
            ->excludingClassesThat(Selector::implementInterface(BlackMagicInterface::class))
            ->canOnlyDependOn()
            ->classesThat(Selector::havePath('Domain/*'))
            ->andClassesThat(Selector::haveClassName('App\Application\Shared\Service\KnownBadApproach'))
            ->build();
    }
    
    public function testAllHandlersExtendAbstractCommandHandler(): Rule
    {
        return $this->newRule
            ->classesThat(Selector::havePath('Application/*/UseCase/*Handler.php'))
            ->excludingClassesThat(Selector::extendClass('App\Application\Shared\UseCase\DifferentHandler'))
            ->andExcludingClassesThat(Selector::includeTrait('App\Legacy\LegacyTrait'))
            ->andExcludingClassesThat(Selector::haveClassName(\App\Application\Shared\UseCase\AbstractCommandHandler::class))
            ->mustExtend()
            ->classesThat(Selector::haveClassName('App\Application\Shared\UseCase\AbstractCommandHandler'))
            ->build();
    }
}

YAML / XML test definition

You can also define tests whether in YAML or XML.

rules:
  testAssertionsImplementAssertionInterface:
    - classes:
        - havePath: Rule/Assertion/*
    - excluding:
        - haveClassName: PhpAT\Rule\Assertion\*\MustNot*
        - havePath: Rule/Assertion/MatchResult.php
    - assert: mustExtend
    - classes:
        - haveClassName: PhpAT\Rule\Assertion\AbstractAssertion

<?xml version="1.0" encoding="UTF-8" ?>
<test xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="https://raw.githubusercontent.com/carlosas/phpat/master/src/Test/Test.xsd">
    <rule name="testAssertionsDoNotDependOnVendors">
        <classes>
            <selector type="havePath">Rule/Assertion/*</selector>
        </classes>
        <assert>canOnlyDependOn</assert>
        <classes>
            <selector type="haveClassName">PhpAT\*</selector>
            <selector type="haveClassName">Psr\*</selector>
        </classes>
    </rule>
</test>

Usage 🚀

Run the bin with your configuration file:

vendor/bin/phpat phpat.yaml

⚠ Launching early stage releases (0.x.x) could break the API according to Semantic Versioning 2.0. We are using minor for breaking changes. This will change with the release of the stable 1.0.0 version.

PHP Architecture Tester is in a very early stage, contributions are welcome. Please have a look to the Contribution docs.