1 /*
   2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package test.com.sun.javafx.geom;
  27 
  28 import com.sun.javafx.geom.Vec3d;
  29 import com.sun.javafx.geom.Vec3f;
  30 import org.junit.Test;
  31 
  32 import static org.junit.Assert.*;
  33 
  34 /**
  35  * PRELIMINARY unit tests for Vec3d.
  36  *
  37  * TODO: expand this to cover the entire class (RT-26882)
  38  */
  39 public class Vec3dTest {
  40 
  41     private static double EPSILON = 1e-10;
  42 
  43     @Test
  44     public void testDefaultContructor() {
  45         Vec3d v3d = new Vec3d();
  46         assertEquals(0, v3d.x, 0);
  47         assertEquals(0, v3d.y, 0);
  48         assertEquals(0, v3d.z, 0);
  49     }
  50 
  51     @Test
  52     public void testContructor1() {
  53         Vec3d v3d = new Vec3d(1.0, 2.0, 3.0);
  54         assertEquals(1, v3d.x, 0);
  55         assertEquals(2, v3d.y, 0);
  56         assertEquals(3, v3d.z, 0);
  57     }
  58 
  59     @Test
  60     public void testContructor2() {
  61         Vec3f v3f = new Vec3f(1f, 2f, 3f);
  62         Vec3d v3d = new Vec3d(v3f);
  63         assertEquals(1, v3d.x, 0);
  64         assertEquals(2, v3d.y, 0);
  65         assertEquals(3, v3d.z, 0);
  66     }
  67 
  68     @Test
  69     public void testLength() {
  70         Vec3d v3d = new Vec3d();
  71         double len = v3d.length();
  72         assertEquals(0, len, 0);
  73 
  74         v3d = new Vec3d(1, 2, 3);
  75         len = v3d.length();
  76         assertEquals(Math.sqrt(14.0), len, EPSILON);
  77 
  78         v3d = new Vec3d(-1, 2, 3);
  79         len = v3d.length();
  80         assertEquals(Math.sqrt(14.0), len, EPSILON);
  81 
  82         v3d = new Vec3d(1, -0.2, -0.03);
  83         len = v3d.length();
  84         assertEquals(Math.sqrt(1.0409), len, EPSILON);
  85 
  86         v3d = new Vec3d(-0.1, -0.2, -0.3);
  87         len = v3d.length();
  88         assertEquals(Math.sqrt(0.14), len, EPSILON);
  89     }
  90 
  91 }