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<?php
namespace Nyholm\EffectiveInterest\Test;
use Nyholm\EffectiveInterest\Calculator;
use PHPUnit\Framework\TestCase;
class CalculatorEqualPaymentsTest extends TestCase
{
/**
* @dataProvider generator
*/
public function testWithEqualPayments(float $correctValue, int $principal, int $payment, int $numberOfMonths, float $guess)
$calculator = new Calculator();
$interest = $calculator->withEqualPayments($principal, $payment, $numberOfMonths, $guess);
$this->assertEquals($correctValue, $interest, 'Failed to calculate effective interest with specified payments.', 0.0001);
}
public function generator()
return [
[0.1128, 11200, 291, 48, 0.02],
[0.0712, 100000, 2400, 48, 0.03],
];
Nyholm /
effective-interest-rate
