/**
* @covers Moontoast\Math\BigNumber::ceil
*/
public function testCeil()
{
$bn1 = new BigNumber('4.3', 1);
$bn2 = new BigNumber('9.999', 3);
$bn3 = new BigNumber('-3.14', 2);
$bn4 = new BigNumber('23.00000000000000999999', 20);
$bn5 = new BigNumber('23.00000000000001999999', 20);
$bn6 = new BigNumber('-23.00000000000000999999', 20);
$bn7 = new BigNumber('-23.00000000000001999999', 20);
$this->assertSame('5', $bn1->ceil()->getValue());
$this->assertSame('10', $bn2->ceil()->getValue());
$this->assertSame('-3', $bn3->ceil()->getValue());
$this->assertSame('23', $bn4->ceil()->getValue());
$this->assertSame('24', $bn5->ceil()->getValue());
$this->assertSame('-23', $bn6->ceil()->getValue());
$this->assertSame('-23', $bn7->ceil()->getValue());
}