test/net/habraun/scd/ContactTest.scala

   1 /*
   2         Copyright (c) 2009 Hanno Braun <hanno@habraun.net>
   3
   4         Licensed under the Apache License, Version 2.0 (the "License");
   5         you may not use this file except in compliance with the License.
   6         You may obtain a copy of the License at
   7
   8                 http://www.apache.org/licenses/LICENSE-2.0
   9
  10         Unless required by applicable law or agreed to in writing, software
  11         distributed under the License is distributed on an "AS IS" BASIS,
  12         WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13         See the License for the specific language governing permissions and
  14         limitations under the License.
  15 */
  16
  17
  18
  19 package net.habraun.scd
  20
  21
  22
  23 import org.junit._
  24 import org.junit.Assert._
  25
  26
  27
  28 class ContactTest {
  29
  30         @Test
  31         def verifyHasAttributes {
  32                 val b1 = new Body
  33                 val b2 = new Body
  34                 val normal1 = Vec2D(0, 1)
  35                 val normal2 = Vec2D(0, -1)
  36                 val point = Vec2D(10, 10)
  37                 val contact = Contact(b1, b2, normal1, normal2, point)
  38                 assertEquals(b1, contact.b1)
  39                 assertEquals(b2, contact.b2)
  40                 assertEquals(normal1, contact.normal1)
  41                 assertEquals(normal2, contact.normal2)
  42                 assertEquals(point, contact.point)
  43         }
  44
  45
  46
  47         @Test { val expected = classOf[IllegalArgumentException] }
  48         def createContactWithNonInverseNormalsExpectException {
  49                 Contact(new Body, new Body, Vec2D(1, 0), Vec2D(0, -1), Vec2D(0, 0))
  50         }
  51
  52
  53
  54         @Test { val expected = classOf[IllegalArgumentException] }
  55         def createContactWithNonUnitNormalsExpectException {
  56                 Contact(new Body, new Body, Vec2D(1, 1), Vec2D(-1, -1), Vec2D(0, 0))
  57         }
  58
  59
  60
  61         @Test
  62         def createContactWithSlightlyOffNonUnitNormalsExpectTolerance {
  63                 Contact(new Body, new Body, Vec2D(1.02, 0), Vec2D(-1.02, 0), Vec2D(0, 0))
  64                 Contact(new Body, new Body, Vec2D(0.98, 0), Vec2D(-0.98, 0), Vec2D(0, 0))
  65         }
  66 }