.atoum.php

<?php

require_once __DIR__ . DIRECTORY_SEPARATOR . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';

$runner->addTest('test.php');
$runner->addExtension(new \mageekguy\atoum\visibility\extension($script));

.bootstrap.atoum.php

<?php

require_once __DIR__ . '/vendor/autoload.php';

.gitignore

/vendor

composer.json

{
    "require": {
        "atoum/visibility-extension": "^1.0",
        "atoum/atoum": "^2.4"
    }
}

composer.lock

{
    "_readme": [
        "This file locks the dependencies of your project to a known state",
        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
        "This file is @generated automatically"
    ],
    "hash": "5df3e7619e40f2ea3c0dd253cecfc69f",
    "content-hash": "abaa412f2c8db4cfc71cef7c3b18a967",
    "packages": [
        {
            "name": "atoum/atoum",
            "version": "2.4.1",
            "source": {
                "type": "git",
                "url": "https://github.com/atoum/atoum.git",
                "reference": "3b76b6f5086a58e0b6f7c89ba4e1882425853c13"
            },
            "dist": {
                "type": "zip",
                "url": "https://api.github.com/repos/atoum/atoum/zipball/3b76b6f5086a58e0b6f7c89ba4e1882425853c13",
                "reference": "3b76b6f5086a58e0b6f7c89ba4e1882425853c13",
                "shasum": ""
            },
            "require": {
                "ext-hash": "*",
                "ext-json": "*",
                "ext-session": "*",
                "ext-tokenizer": "*",
                "ext-xml": "*",
                "php": ">=5.3.3"
            },
            "replace": {
                "mageekguy/atoum": "*"
            },
            "suggest": {
                "atoum/stubs": "Provides IDE support (like autocompletion) for atoum",
                "ext-mbstring": "Provides support for UTF-8 strings"
            },
            "bin": [
                "bin/atoum"
            ],
            "type": "library",
            "extra": {
                "branch-alias": {
                    "dev-master": "2.x-dev"
                }
            },
            "autoload": {
                "classmap": [
                    "classes/"
                ]
            },
            "notification-url": "https://packagist.org/downloads/",
            "license": [
                "BSD"
            ],
            "authors": [
                {
                    "name": "Frédéric Hardy",
                    "email": "frederic.hardy@atoum.org",
                    "homepage": "http://blog.mageekbox.net"
                },
                {
                    "name": "François Dussert",
                    "email": "francois.dussert@atoum.org"
                },
                {
                    "name": "Gérald Croes",
                    "email": "gerald.croes@atoum.org"
                },
                {
                    "name": "Julien Bianchi",
                    "email": "julien.bianchi@atoum.org"
                },
                {
                    "name": "Ludovic Fleury",
                    "email": "ludovic.fleury@atoum.org"
                }
            ],
            "description": "Simple modern and intuitive unit testing framework for PHP 5.3+",
            "homepage": "http://www.atoum.org",
            "keywords": [
                "TDD",
                "atoum",
                "test",
                "unit testing"
            ],
            "time": "2015-12-07 14:57:39"
        },
        {
            "name": "atoum/visibility-extension",
            "version": "1.0.1",
            "source": {
                "type": "git",
                "url": "https://github.com/atoum/visibility-extension.git",
                "reference": "b9ec99da887c9106f63e5bfcedbb9eec811ebca5"
            },
            "dist": {
                "type": "zip",
                "url": "https://api.github.com/repos/atoum/visibility-extension/zipball/b9ec99da887c9106f63e5bfcedbb9eec811ebca5",
                "reference": "b9ec99da887c9106f63e5bfcedbb9eec811ebca5",
                "shasum": ""
            },
            "require-dev": {
                "atoum/atoum": "<3.0"
            },
            "type": "library",
            "autoload": {
                "psr-4": {
                    "mageekguy\\atoum\\visibility\\": "classes"
                },
                "files": [
                    "autoloader.php"
                ]
            },
            "notification-url": "https://packagist.org/downloads/",
            "license": [
                "BSD"
            ],
            "authors": [
                {
                    "name": "jubianchi",
                    "email": "contact@jubianchi.fr"
                }
            ],
            "description": "atoum extension to loosen method visibility",
            "homepage": "http://www.atoum.org",
            "keywords": [
                "TDD",
                "atoum",
                "test",
                "unit testing",
                "visibility"
            ],
            "time": "2015-02-21 17:02:02"
        }
    ],
    "packages-dev": [],
    "aliases": [],
    "minimum-stability": "stable",
    "stability-flags": [],
    "prefer-stable": false,
    "prefer-lowest": false,
    "platform": [],
    "platform-dev": []
}

test.php

<?php

namespace titi
{
    class foo
    {
        public function baz()
        {
            return $this->bar();
        }

        private function bar()
        {
            return 'fail';
        }
    }
}

namespace titi\tests\units
{
    use mageekguy\atoum;

    class foo extends atoum\test
    {
        public function testBar()
        {
            $this
                ->given(
                    $this->mockGenerator
                        ->makeVisible('bar')
                        ->generate('\titi\foo')
                )
                ->if($mockedSut = new \mock\titi\foo)
                ->and($this->calling($mockedSut)->bar = 'foo')
                ->then
                    ->string($mockedSut->baz())->isEqualTo('foo')
                    ->string($mockedSut->baz())->isEqualTo('foo')
                    ->mock($mockedSut)
                        ->call('bar')->twice()
            ;
        }
    }
}