public function testRand()
{
$x = rand(-100000, 100000);
$y = rand(-100000, 100000);
$decimal = new Decimal();
$this->assertEquals($x / $y, $decimal->divide($x, $y));
$this->assertEquals($x * $y, $decimal->multiply($x, $y));
$decimal->setReturnMode(true);
$this->assertEquals($x * $x / $y, $decimal->divide($decimal->multiply($x, $x), $y)->get());
}