composer/tests/Composer/Test/Package/LinkConstraint/VersionConstraintTest.php

<?php

/*
 * This file is part of Composer.
 *
 * (c) Nils Adermann <naderman@naderman.de>
 *     Jordi Boggiano <j.boggiano@seld.be>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Composer\Test\Package\LinkConstraint;

use Composer\Package\LinkConstraint\VersionConstraint;

class VersionConstraintTest extends \PHPUnit_Framework_TestCase
{
    public static function successfulVersionMatches()
    {
        return array(
            //    require    provide
            array('==', '1', '==', '1'),
            array('>=', '1', '>=', '2'),
            array('>=', '2', '>=', '1'),
            array('>=', '2', '>', '1'),
            array('<=', '2', '>=', '1'),
            array('>=', '1', '<=', '2'),
            array('==', '2', '>=', '2'),
            array('!=', '1', '!=', '1'),
            array('!=', '1', '==', '2'),
            array('!=', '1', '<',  '1'),
            array('!=', '1', '<=', '1'),
            array('!=', '1', '>',  '1'),
            array('!=', '1', '>=', '1'),
        );
    }

    /**
     * @dataProvider successfulVersionMatches
     */
    public function testVersionMatchSucceeds($requireOperator, $requireVersion, $provideOperator, $provideVersion)
    {
        $versionRequire = new VersionConstraint($requireOperator, $requireVersion);
        $versionProvide = new VersionConstraint($provideOperator, $provideVersion);

        $this->assertTrue($versionRequire->matches($versionProvide));
    }

    public static function failingVersionMatches()
    {
        return array(
            //    require    provide
            array('==', '1', '==', '2'),
            array('>=', '2', '<=', '1'),
            array('>=', '2', '<', '2'),
            array('<=', '2', '>', '2'),
            array('>', '2', '<=', '2'),
            array('<=', '1', '>=', '2'),
            array('>=', '2', '<=', '1'),
            array('==', '2', '<', '2'),
            array('!=', '1', '==', '1'),
            array('==', '1', '!=', '1'),
        );
    }

    /**
     * @dataProvider failingVersionMatches
     */
    public function testVersionMatchFails($requireOperator, $requireVersion, $provideOperator, $provideVersion)
    {
        $versionRequire = new VersionConstraint($requireOperator, $requireVersion);
        $versionProvide = new VersionConstraint($provideOperator, $provideVersion);

        $this->assertFalse($versionRequire->matches($versionProvide));
    }
}