(load "Test.carp")
(load "Vector.carp")
(load "Geometry.carp")

(use-all Test Vector2 Geometry Double)

(deftest test
  (assert-equal test
                &(init 0.0 0.0) &(Vector2.zero)
                "zero works")
  (assert-equal test
                &(init 1.0 2.0) &(init 1.0 2.0)
                "= operator works")
  (assert-op test
             &(init 1.0 2.0) &(init 1.0 1.0)
             "/= operator works"
             Vector2./=)
  (assert-equal test
                &(init 3.0 3.0)
                &(add &(init 2.0 1.0) &(init 1.0 2.0))
                "add operator works")
  (assert-equal test
                &(init 1.0 -1.0)
                &(sub &(init 2.0 1.0) &(init 1.0 2.0))
                "sub operator works")
  (assert-equal test
                &(init 4.0 2.0)
                &(mul &(init 2.0 1.0) 2.0)
                "mul operator works")
  (assert-equal test
                &(init 1.0 0.5)
                &(div &(init 2.0 1.0) 2.0)
                "div operator works")
  (assert-equal test
                5.0
                (mag &(init 3.0 4.0))
                "mag works")
  (assert-equal test
                101.0
                (mag-sq &(init 10.0 1.0))
                "mag-sq works")
  (assert-equal test
                &(init 0.6 0.8)
                &(normalize &(init 3.0 4.0))
                "normalize works")
  (assert-equal test
                5.0
                (dist &(init 10.0 10.0) &(init 7.0 6.0))
                "dist works")
  (assert-equal test
                0.0
                (heading &(init 1.0 0.0))
                "heading works")
  (assert-op test
             &(init -2.0 1.0)
             &(rotate &(init 1.0 2.0) (degree-to-radians 90.0))
             "rotate works"
             vapprox)
  (assert-equal test
                90.0
                (radians-to-degree (Vector2.angle-between &(init 1.0 0.0) &(init 0.0 1.0)))
                "angle-between works")
  (assert-true test
               (anti-parallel? &(init 1.0 0.0) &(init -1.0 0.0))
               "anti-parallel? works")
  (assert-true test
               (parallel? &(init 1.0 0.0) &(init 1.0 0.0))
               "parallel? works")
  (assert-true test
               (perpendicular? &(init 1.0 0.0) &(init 0.0 1.0))
               "perpendicular? works")
  (assert-equal test
                44.0
                (dot &(init 10.0 2.0) &(init 2.0 12.0))
                "dot works")
  (assert-equal test
                &(init 2.5 5.0)
                &(vlerp &(Vector2.zero) &(init 5.0 10.0) 0.5)
                "vlerp works")
)