Getting Composer and PHPUnit to autoload namespaces

ComposerPHPUnit.md

Getting Composer and PHPUnit to autoload namespaces.

Overview

Details

Project Structure

ProjectRoot
 src
  ProjectName
   Subdir
    MyClass.php
 tests
  ProjectName
   Subdir
    MyClassTest.php

MyClass.php

<?php
namespace ProjectName\Subdir;

class MyClass {
    public function __construct(){

    }
}

MyClassTest.php

<?php

namespace ProjectName;

use ProjectName\Subdir\MyClass;

class MyClassTest extends \PHPUnit_Framework_TestCase {
    public function testInstance() {
        $myClass = new MyClass();
        $this->assertInstanceOf('ProjectName\Subdir\myClass', $myClass);
    }
}

phpunit.xml

<?xml version="1.0" encoding="UTF-8"?>

<phpunit bootstrap="vendor/autoload.php" colors="true">
    <testsuites>
        <testsuite name="ProjectRoot Test Suite">
            <directory>./tests/ProjectName</directory>
        </testsuite>
    </testsuites>
</phpunit>

composer.json

{
    "name": "garyrogers/projectname",
    "description": "description_text",
    "minimum-stability": "stable",
    "license": "proprietary",
    "authors": [
        {
            "name": "author's name",
            "email": "[email protected]"
        }
    ],
    "autoload": {
        "psr-0": {
            "ProjectName": "src"
        }
    },
    "require": {
        "monolog/monolog": "1.9.1"
    }
}

When updating the composer.json file be sure to run composer update to re-generate the autoload.php file that is referenced in the phpunit.xml file.