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<?php
use Litipk\BigNumbers\DecimalConstants as DecimalConstants;
use Litipk\BigNumbers\Decimal as Decimal;
use PHPUnit\Framework\TestCase;
date_default_timezone_set('UTC');
class DecimalConstantsTest extends TestCase
{
public function testFiniteAbs()
$this->assertTrue(DecimalConstants::pi()->equals(
Decimal::fromString("3.14159265358979323846264338327950")
));
$this->assertTrue(DecimalConstants::eulerMascheroni()->equals(
Decimal::fromString("0.57721566490153286060651209008240")
$this->assertTrue(DecimalConstants::goldenRatio()->equals(
Decimal::fromString("1.61803398874989484820458683436564")
$this->assertTrue(DecimalConstants::silverRatio()->equals(
Decimal::fromString("2.41421356237309504880168872420970")
$this->assertTrue(DecimalConstants::lightSpeed()->equals(
Decimal::fromInteger(299792458)
}
public function testE()
$this->assertTrue(DecimalConstants::e()->equals(
Decimal::fromString("2.71828182845904523536028747135266")
$this->assertTrue(DecimalConstants::e(32)->equals(
$this->assertTrue(DecimalConstants::e(16)->equals(
Decimal::fromString("2.7182818284590452")
/**
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage $scale must be positive.
*/
public function testNegativeParamsOnE()
DecimalConstants::e(-3);