public function distance()
{
return Math::distance($this->start->x, $this->start->y, $this->end->x, $this->end->y);
}
/**
* @covers tarcisio\p2d\Math::distance
*/
public function testDistance()
{
$p1 = new Point(0, 0);
$p2 = new Point(10, 0);
$this->assertEquals(10, Math::distance($p1->x, $p1->y, $p2->x, $p2->y));
}