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✨ Improved tests for geom transforms

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alonso.torres 2020-12-02 12:49:49 +01:00 • committed by Andrey Antukh
parent 8bc37416a0
commit 1fb5ffb59b
5 changed files with 279 additions and 85 deletions
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83
frontend/tests/app/test_util_geom.cljs
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(ns app.test-util-geom
(:require [cljs.test :as t :include-macros true]
[cljs.pprint :refer [pprint]]
[app.common.geom.point :as gpt]
[app.common.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)))
(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))))
;; (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/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/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/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 matrix-constructors-test
(let [m (gmt/matrix)]
(t/is (= (str m) "matrix(1,0,0,1,0,0)")))
(let [m (gmt/matrix 1 1 1 2 2 2)]
(t/is (= (str m) "matrix(1,1,1,2,2,2)"))))
(t/deftest matrix-translate-test
(let [m (-> (gmt/matrix)
(gmt/translate (gpt/point 2 10)))]
(t/is (= (str m) "matrix(1,0,0,1,2,10)"))))
(t/deftest matrix-scale-test
(let [m (-> (gmt/matrix)
(gmt/scale (gpt/point 2)))]
(t/is (= (str m) "matrix(2,0,0,2,0,0)"))))
(t/deftest matrix-rotate-test
(let [m (-> (gmt/matrix)
(gmt/rotate 10))]
(t/is (= (str m) "matrix(0.984807753012208,0.17364817766693033,-0.17364817766693033,0.984807753012208,0,0)"))))