tests/MathTest.php


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<?php

/**
 * This file is part of the MathExecutor package
 *
 * (c) Alexander Kiryukhin
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code
 */

namespace NXP\Tests;

use \NXP\MathExecutor;

class MathTest extends \PHPUnit_Framework_TestCase
{
    /**
     * @dataProvider providerExpressions
     */
    public function testCalculating($expression)
    {
        $calculator = new MathExecutor();

        /** @var float $phpResult */
        eval('$phpResult = ' . $expression . ';');
        $this->assertEquals($calculator->execute($expression), $phpResult);
    }

    /**
     * Expressions data provider
     */
    public function providerExpressions()
    {
        return array(
            array('0.1 + 0.2'),
            array('1 + 2'),

            array('0.1 - 0.2'),
            array('1 - 2'),

            array('0.1 * 2'),
            array('1 * 2'),

            array('0.1 / 0.2'),
            array('1 / 2'),

            array('1 + 0.6 - (3 * 2 / 50)')
        );
    }
}