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102 lines
2.8 KiB
Clojure
102 lines
2.8 KiB
Clojure
;; This Source Code Form is subject to the terms of the Mozilla Public
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;; License, v. 2.0. If a copy of the MPL was not distributed with this
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;; file, You can obtain one at http://mozilla.org/MPL/2.0/.
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;;
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;; Copyright (c) KALEIDOS INC
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(ns common-tests.geom-test
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(:require
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[app.common.geom.matrix :as gmt]
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[app.common.geom.point :as gpt]
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[app.common.math :as mth]
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[clojure.test :as t]))
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(t/deftest point-constructors-test
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(t/testing "Create point with both coordinates"
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(let [p (gpt/point 1 2)]
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(t/is (= (:x p) 1))
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(t/is (= (:y p) 2))))
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(t/testing "Create point with single coordinate"
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(let [p (gpt/point 1)]
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(t/is (= (:x p) 1))
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(t/is (= (:y p) 1))))
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(t/testing "Create empty point"
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(let [p (gpt/point)]
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(t/is (= (:x p) 0))
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(t/is (= (:y p) 0)))))
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(t/deftest point-add-test
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(t/testing "Adds two points together"
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(let [p1 (gpt/point 1 1)
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p2 (gpt/point 2 2)
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p3 (gpt/add p1 p2)]
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(t/is (= (:x p3) 3))
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(t/is (= (:y p3) 3)))))
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(t/deftest point-subtract-test
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(t/testing "Point substraction"
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(let [p1 (gpt/point 3 3)
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p2 (gpt/point 2 2)
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p3 (gpt/subtract p1 p2)]
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(t/is (= (:x p3) 1))
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(t/is (= (:y p3) 1)))))
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(t/deftest point-distance-test
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(let [p1 (gpt/point 0 0)
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p2 (gpt/point 10 0)
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d (gpt/distance p1 p2)]
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(t/is (number? d))
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(t/is (= d 10.0))))
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(t/deftest point-length-test
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(let [p1 (gpt/point 10 0)
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ln (gpt/length p1)]
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(t/is (number? ln))
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(t/is (= ln 10.0))))
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(t/deftest point-angle-test
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(t/testing "Get angle a 90 degree angle"
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(let [p1 (gpt/point 0 10)
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angle (gpt/angle p1)]
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(t/is (number? angle))
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(t/is (= angle 90.0))))
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(t/testing "Get 45 degree angle"
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(let [p1 (gpt/point 0 10)
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p2 (gpt/point 10 10)
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angle (gpt/angle-with-other p1 p2)]
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(t/is (number? angle))
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(t/is (mth/close? angle 45.0)))))
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(t/deftest matrix-constructors-test
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(let [m (gmt/matrix)]
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(t/is (= 1.0 (.-a m)))
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(t/is (= 0.0 (.-b m)))
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(t/is (= 0.0 (.-c m)))
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(t/is (= 1.0 (.-d m)))
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(t/is (= 0.0 (.-e m)))
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(t/is (= 0.0 (.-f m))))
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(let [m (gmt/matrix 1 1 1 2 2 2)]
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(t/is (= 1.0 (.-a m)))
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(t/is (= 1.0 (.-b m)))
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(t/is (= 1.0 (.-c m)))
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(t/is (= 2.0 (.-d m)))
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(t/is (= 2.0 (.-e m)))
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(t/is (= 2.0 (.-f m)))))
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(t/deftest matrix-translate-test
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(let [m (-> (gmt/matrix)
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(gmt/translate (gpt/point 2 10)))]
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(t/is (= m (gmt/matrix 1 0 0 1 2 10)))))
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(t/deftest matrix-scale-test
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(let [m (-> (gmt/matrix)
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(gmt/scale (gpt/point 2)))]
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(t/is (= m (gmt/matrix 2 0 0 2 0 0)))))
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(t/deftest matrix-rotate-test
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(let [m (-> (gmt/matrix)
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(gmt/rotate 10))]
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(t/is (= m (gmt/matrix 0.984807753012208 0.17364817766693033 -0.17364817766693033 0.984807753012208 0 0)))))
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