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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);
}
public function testZeroDivision()
{
$calculator = new MathExecutor();
$this->assertEquals($calculator->execute('1 / 0'), 0);
}
public function testExponentiation()
{
$calculator = new MathExecutor();
$this->assertEquals($calculator->execute('10 ^ 2'), 100);
}
/**
* Expressions data provider
*/
public function providerExpressions()
{
return [
['0.1 + 0.2'],
['1 + 2'],
['0.1 - 0.2'],
['1 - 2'],
['0.1 * 2'],
['1 * 2'],
['0.1 / 0.2'],
['1 / 2'],
['2 * 2 + 3 * 3'],
['1 + 0.6 - 3 * 2 / 50'],
['(5 + 3) * -1'],
['2+2*2'],
['(2+2)*2'],
['(2+2)*-2'],
['(2+-2)*2'],
['sin(10) * cos(50) / min(10, 20/2)'],
['100500 * 3.5E5'],
['100500 * 3.5E-5'],
];
}
public function testFunction()
{
$calculator = new MathExecutor();
$calculator->addFunction('round', function ($arg) { return round($arg); }, 1);
/** @var float $phpResult */
eval('$phpResult = round(100/30);');
$this->assertEquals($calculator->execute('round(100/30)'), $phpResult);
}
}
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