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::lightSpeed()->equals(Decimal::fromInteger(299792458)));
}