/**
* Move point by sent value.
*
* @param int|float $x Move vector on OX axis.
* @param int|float $y Move vector on OY axis.
* @return Point2D Method returns current object instance.
*/
public function move($x = 0, $y = 0)
{
parent::move($x);
$this->checkY($y);
$this->y += $y;
return $this;
}
public function testPoint1DLowerDimension()
{
$point1D = new Point1D(17);
$this->assertInstanceOf(AbstractPoint::class, $point1D->lowerDimension());
}