/**
* Verify that vector() returns the correct vector between a degenerate line
* segment.
*
* @test
* @uses \Nubs\Geometron\Point::__construct
* @uses \Nubs\Geometron\Point::vector
* @uses \Nubs\Geometron\Point::isSameSpace
* @uses \Nubs\Geometron\LineSegment::__construct
* @uses \Nubs\Geometron\LineSegment::a
* @uses \Nubs\Geometron\LineSegment::b
* @covers ::vector
*/
public function vectorOfDegenerateLineSegment()
{
$a = new Point(new Vector([1, 3]));
$b = new Point(new Vector([1, 3]));
$line = new LineSegment($a, $b);
$expected = new Vector([0, 0]);
$this->assertTrue($expected->isEqual($line->vector()));
}
/**
* Verify that 2 different vectors are not considered the same.
*
* @test
* @uses \Nubs\Vectorix\Vector::__construct
* @uses \Nubs\Vectorix\Vector::components
* @covers ::isEqual
*/
public function isEqualWithDifferentVectors()
{
$a = new Vector([1, 2, 3]);
$b = new Vector([9, 2, 3]);
$this->assertFalse($a->isEqual($b), 'Vectors with different components are not equal');
}
