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penpot/frontend/test/uxbox/tests/test_util_geom.cljs
2017-03-01 20:09:14 +01:00

114 lines
2.8 KiB
Clojure

(ns uxbox.tests.test-util-geom
(:require [cljs.test :as t :include-macros true]
[cljs.pprint :refer [pprint]]
[uxbox.util.geom.point :as gpt]
[uxbox.util.geom.matrix :as gmt]))
(t/deftest point-constructors-test
(let [p (gpt/point 1 2)]
(t/is (= (:x p) 1))
(t/is (= (:y p) 2))
(t/is (gpt/point? p)))
(let [p (gpt/point 1)]
(t/is (= (:x p) 1))
(t/is (= (:y p) 1)))
(let [p (gpt/point)]
(t/is (= (:x p) 0))
(t/is (= (:y p) 0)))
(let [p (gpt/point [1 2])]
(t/is (= (:x p) 1))
(t/is (= (:y p) 2))))
(t/deftest point-rotate-test
(let [p1 (gpt/point 10 0)
p2 (gpt/rotate p1 90)]
(t/is (= (:x p2) 0))
(t/is (= (:y p2) 10))
(t/is (gpt/point? p2))))
(t/deftest point-add-test
(let [p1 (gpt/point 1 1)
p2 (gpt/point 2 2)
p3 (gpt/add p1 p2)]
(t/is (= (:x p3) 3))
(t/is (= (:y p3) 3))
(t/is (gpt/point? p3))))
(t/deftest point-subtract-test
(let [p1 (gpt/point 3 3)
p2 (gpt/point 2 2)
p3 (gpt/subtract p1 p2)]
(t/is (= (:x p3) 1))
(t/is (= (:y p3) 1))
(t/is (gpt/point? p3))))
(t/deftest point-distance-test
(let [p1 (gpt/point 0 0)
p2 (gpt/point 10 0)
d (gpt/distance p1 p2)]
(t/is (number? d))
(t/is (= d 10))))
(t/deftest point-length-test
(let [p1 (gpt/point 10 0)
ln (gpt/length p1)]
(t/is (number? ln))
(t/is (= ln 10))))
(t/deftest point-angle-test
(let [p1 (gpt/point 0 10)
angle (gpt/angle p1)]
(t/is (number? angle))
(t/is (= angle 90)))
(let [p1 (gpt/point 0 10)
p2 (gpt/point 10 10)
angle (gpt/angle-with-other p1 p2)]
(t/is (number? angle))
(t/is (= angle 45))))
(t/deftest point-quadrant-test
(let [p1 (gpt/point 10 10)
p2 (gpt/point -10 10)
p3 (gpt/point -10 -10)
p4 (gpt/point 10 -10)]
(t/is (= 1 (gpt/quadrant p1)))
(t/is (= 2 (gpt/quadrant p2)))
(t/is (= 3 (gpt/quadrant p3)))
(t/is (= 4 (gpt/quadrant p4)))))
(t/deftest matrix-constructors-test
(let [m (gmt/matrix)]
(t/is (= @m [1 0 0 1 0 0]))
(t/is (gmt/matrix? m)))
(let [m (gmt/matrix 1 1 1 2 2 2)]
(t/is (= @m [1 1 1 2 2 2]))
(t/is (gmt/matrix? m)))
(let [m (gmt/matrix [1 1 1 2 2 2])]
(t/is (= @m [1 1 1 2 2 2]))
(t/is (gmt/matrix? m))))
(t/deftest matrix-rotate-test
(let [m (-> (gmt/matrix)
(gmt/rotate 10))]
(t/is (= @m [0.984807753012208
0.17364817766693033
-0.17364817766693033
0.984807753012208
0 0]))))
(t/deftest matrix-scale-test
(let [m (-> (gmt/matrix)
(gmt/scale 2))]
(t/is (= @m [2 0 0 2 0 0]))))
(t/deftest matrix-translate-test
(let [m (-> (gmt/matrix)
(gmt/translate 2 10))]
(t/is (= @m [1 0 0 1 2 10]))))