typescript-closure-tools/lib/definitely-typed/threejs/three-tests.ts

Command-line tools to convert closure-style JSDoc annotations to typescript, and to convert typescript sources to closure externs files

/// <reference path="three.d.ts" />
/// <reference path="../qunit/qunit.d.ts" />

/////////////////////////////////////////////////////////////////////
// Lib.d.ts browser specific fixes necessary for these tests to work : 
/////////////////////////////////////////////////////////////////////
interface CSSStyleDeclaration {
    WebkitFilter: string;
}
interface Document {
    pointerLockElement: any;
    mozPointerLockElement: any;
    webkitPointerLockElement: any;
    fullscreenElement: any;
    mozFullscreenElement: any;
    mozFullScreenElement: any;
    webkitFullscreenElement: any;
}
interface HTMLElement {
    requestPointerLock: any;
    mozRequestPointerLock: any;
    webkitRequestPointerLock: any;
    requestFullScreen: any;
    requestFullscreen: any;
    mozRequestFullScreen: any;
    mozRequestFullscreen: any;
    webkitRequestFullscreen: any;
}

/*
The MIT License

Copyright (c) 2010-2013 three.js authors

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

// https://github.com/mrdoob/three.js/tree/master/test/unit/math

()=>{
    var x = 2;
    var y = 3;
    var z = 4;
    var w = 5;

    var negInf2 = new THREE.Vector2( -Infinity, -Infinity );
    var posInf2 = new THREE.Vector2( Infinity, Infinity );

    var zero2 = new THREE.Vector2();
    var one2 = new THREE.Vector2( 1, 1 );
    var two2 = new THREE.Vector2( 2, 2 );

    var negInf3 = new THREE.Vector3( -Infinity, -Infinity, -Infinity );
    var posInf3 = new THREE.Vector3( Infinity, Infinity, Infinity );

    var zero3 = new THREE.Vector3();
    var one3 = new THREE.Vector3( 1, 1, 1 );
    var two3 = new THREE.Vector3( 2, 2, 2 );

    (QUnit.module)( "Box2" );

    test( "constructor", function() {
        var a = new THREE.Box2();
        ok( a.min.equals( posInf2 ), "Passed!" );
        ok( a.max.equals( negInf2 ), "Passed!" );

        a = new THREE.Box2( zero2.clone(), zero2.clone() );
        ok( a.min.equals( zero2 ), "Passed!" );
        ok( a.max.equals( zero2 ), "Passed!" );

        a = new THREE.Box2( zero2.clone(), one2.clone() );
        ok( a.min.equals( zero2 ), "Passed!" );
        ok( a.max.equals( one2 ), "Passed!" );
    });

    test( "copy", function() {
        var a = new THREE.Box2( zero2.clone(), one2.clone() );
        var b = new THREE.Box2().copy( a );
        ok( b.min.equals( zero2 ), "Passed!" );
        ok( b.max.equals( one2 ), "Passed!" );

        // ensure that it is a true copy
        a.min = zero2;
        a.max = one2;
        ok( b.min.equals( zero2 ), "Passed!" );
        ok( b.max.equals( one2 ), "Passed!" );
    });

    test( "set", function() {
        var a = new THREE.Box2();

        a.set( zero2, one2 );
        ok( a.min.equals( zero2 ), "Passed!" );
        ok( a.max.equals( one2 ), "Passed!" );
    });

    test( "empty/makeEmpty", function() {
        var a = new THREE.Box2();

        ok( a.empty(), "Passed!" );

        var a = new THREE.Box2( zero2.clone(), one2.clone() );
        ok( ! a.empty(), "Passed!" );

        a.makeEmpty();
        ok( a.empty(), "Passed!" );
    });

    test( "center", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );

        ok( a.center().equals( zero2 ), "Passed!" );

        a = new THREE.Box2( zero2, one2 );
        var midpoint = one2.clone().multiplyScalar( 0.5 );
        ok( a.center().equals( midpoint ), "Passed!" );
    });

    test( "size", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );

        ok( a.size().equals( zero2 ), "Passed!" );

        a = new THREE.Box2( zero2.clone(), one2.clone() );
        ok( a.size().equals( one2 ), "Passed!" );
    });

    test( "expandByPoint", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );

        a.expandByPoint( zero2 );
        ok( a.size().equals( zero2 ), "Passed!" );

        a.expandByPoint( one2 );
        ok( a.size().equals( one2 ), "Passed!" );

        a.expandByPoint( one2.clone().negate() );
        ok( a.size().equals( one2.clone().multiplyScalar( 2 ) ), "Passed!" );
        ok( a.center().equals( zero2 ), "Passed!" );
    });

    test( "expandByVector", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );

        a.expandByVector( zero2 );
        ok( a.size().equals( zero2 ), "Passed!" );

        a.expandByVector( one2 );
        ok( a.size().equals( one2.clone().multiplyScalar( 2 ) ), "Passed!" );
        ok( a.center().equals( zero2 ), "Passed!" );
    });

    test( "expandByScalar", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );

        a.expandByScalar( 0 );
        ok( a.size().equals( zero2 ), "Passed!" );

        a.expandByScalar( 1 );
        ok( a.size().equals( one2.clone().multiplyScalar( 2 ) ), "Passed!" );
        ok( a.center().equals( zero2 ), "Passed!" );
    });

    test( "containsPoint", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );

        ok( a.containsPoint( zero2 ), "Passed!" );
        ok( ! a.containsPoint( one2 ), "Passed!" );

        a.expandByScalar( 1 );
        ok( a.containsPoint( zero2 ), "Passed!" );
        ok( a.containsPoint( one2 ), "Passed!" );
        ok( a.containsPoint( one2.clone().negate() ), "Passed!" );
    });

    test( "containsBox", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );
        var b = new THREE.Box2( zero2.clone(), one2.clone() );
        var c = new THREE.Box2( one2.clone().negate(), one2.clone() );

        ok( a.containsBox( a ), "Passed!" );
        ok( ! a.containsBox( b ), "Passed!" );
        ok( ! a.containsBox( c ), "Passed!" );

        ok( b.containsBox( a ), "Passed!" );
        ok( c.containsBox( a ), "Passed!" );
        ok( ! b.containsBox( c ), "Passed!" );
    });

    test( "getParameter", function() {
        var a = new THREE.Box2( zero2.clone(), one2.clone() );
        var b = new THREE.Box2( one2.clone().negate(), one2.clone() );

        ok( a.getParameter( new THREE.Vector2( 0, 0 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
        ok( a.getParameter( new THREE.Vector2( 1, 1 ) ).equals( new THREE.Vector2( 1, 1 ) ), "Passed!" );

        ok( b.getParameter( new THREE.Vector2( -1, -1 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
        ok( b.getParameter( new THREE.Vector2( 0, 0 ) ).equals( new THREE.Vector2( 0.5, 0.5 ) ), "Passed!" );
        ok( b.getParameter( new THREE.Vector2( 1, 1 ) ).equals( new THREE.Vector2( 1, 1 ) ), "Passed!" );
    });

    test( "clampPoint", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );
        var b = new THREE.Box2( one2.clone().negate(), one2.clone() );

        ok( a.clampPoint( new THREE.Vector2( 0, 0 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
        ok( a.clampPoint( new THREE.Vector2( 1, 1 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
        ok( a.clampPoint( new THREE.Vector2( -1, -1 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );

        ok( b.clampPoint( new THREE.Vector2( 2, 2 ) ).equals( new THREE.Vector2( 1, 1 ) ), "Passed!" );
        ok( b.clampPoint( new THREE.Vector2( 1, 1 ) ).equals( new THREE.Vector2( 1, 1 ) ), "Passed!" );
        ok( b.clampPoint( new THREE.Vector2( 0, 0 ) ).equals( new THREE.Vector2( 0, 0 ) ), "Passed!" );
        ok( b.clampPoint( new THREE.Vector2( -1, -1 ) ).equals( new THREE.Vector2( -1, -1 ) ), "Passed!" );
        ok( b.clampPoint( new THREE.Vector2( -2, -2 ) ).equals( new THREE.Vector2( -1, -1 ) ), "Passed!" );
    });

    test( "distanceToPoint", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );
        var b = new THREE.Box2( one2.clone().negate(), one2.clone() );

        ok( a.distanceToPoint( new THREE.Vector2( 0, 0 ) ) == 0, "Passed!" );
        ok( a.distanceToPoint( new THREE.Vector2( 1, 1 ) ) == Math.sqrt( 2 ), "Passed!" );
        ok( a.distanceToPoint( new THREE.Vector2( -1, -1 ) ) == Math.sqrt( 2 ), "Passed!" );

        ok( b.distanceToPoint( new THREE.Vector2( 2, 2 ) ) == Math.sqrt( 2 ), "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector2( 1, 1 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector2( 0, 0 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector2( -1, -1 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector2( -2, -2 ) ) == Math.sqrt( 2 ), "Passed!" );
    });

    test( "distanceToPoint", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );
        var b = new THREE.Box2( one2.clone().negate(), one2.clone() );

        ok( a.distanceToPoint( new THREE.Vector2( 0, 0 ) ) == 0, "Passed!" );
        ok( a.distanceToPoint( new THREE.Vector2( 1, 1 ) ) == Math.sqrt( 2 ), "Passed!" );
        ok( a.distanceToPoint( new THREE.Vector2( -1, -1 ) ) == Math.sqrt( 2 ), "Passed!" );

        ok( b.distanceToPoint( new THREE.Vector2( 2, 2 ) ) == Math.sqrt( 2 ), "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector2( 1, 1 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector2( 0, 0 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector2( -1, -1 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector2( -2, -2 ) ) == Math.sqrt( 2 ), "Passed!" );
    });

    test( "isIntersectionBox", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );
        var b = new THREE.Box2( zero2.clone(), one2.clone() );
        var c = new THREE.Box2( one2.clone().negate(), one2.clone() );

        ok( a.isIntersectionBox( a ), "Passed!" );
        ok( a.isIntersectionBox( b ), "Passed!" );
        ok( a.isIntersectionBox( c ), "Passed!" );

        ok( b.isIntersectionBox( a ), "Passed!" );
        ok( c.isIntersectionBox( a ), "Passed!" );
        ok( b.isIntersectionBox( c ), "Passed!" );

        b.translate( new THREE.Vector2( 2, 2 ) );
        ok( ! a.isIntersectionBox( b ), "Passed!" );
        ok( ! b.isIntersectionBox( a ), "Passed!" );
        ok( ! b.isIntersectionBox( c ), "Passed!" );
    });

    test( "intersect", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );
        var b = new THREE.Box2( zero2.clone(), one2.clone() );
        var c = new THREE.Box2( one2.clone().negate(), one2.clone() );

        ok( a.clone().intersect( a ).equals( a ), "Passed!" );
        ok( a.clone().intersect( b ).equals( a ), "Passed!" );
        ok( b.clone().intersect( b ).equals( b ), "Passed!" );
        ok( a.clone().intersect( c ).equals( a ), "Passed!" );
        ok( b.clone().intersect( c ).equals( b ), "Passed!" );
        ok( c.clone().intersect( c ).equals( c ), "Passed!" );
    });

    test( "union", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );
        var b = new THREE.Box2( zero2.clone(), one2.clone() );
        var c = new THREE.Box2( one2.clone().negate(), one2.clone() );

        ok( a.clone().union( a ).equals( a ), "Passed!" );
        ok( a.clone().union( b ).equals( b ), "Passed!" );
        ok( a.clone().union( c ).equals( c ), "Passed!" );
        ok( b.clone().union( c ).equals( c ), "Passed!" );
    });

    test( "translate", function() {
        var a = new THREE.Box2( zero2.clone(), zero2.clone() );
        var b = new THREE.Box2( zero2.clone(), one2.clone() );
        var c = new THREE.Box2( one2.clone().negate(), one2.clone() );
        var d = new THREE.Box2( one2.clone().negate(), zero2.clone() );

        ok( a.clone().translate( one2 ).equals( new THREE.Box2( one2, one2 ) ), "Passed!" );
        ok( a.clone().translate( one2 ).translate( one2.clone().negate() ).equals( a ), "Passed!" );
        ok( d.clone().translate( one2 ).equals( b ), "Passed!" );
        ok( b.clone().translate( one2.clone().negate() ).equals( d ), "Passed!" );
    });

    test( "constructor", function() {
        var a = new THREE.Box3();
        ok( a.min.equals( posInf3 ), "Passed!" );
        ok( a.max.equals( negInf3 ), "Passed!" );

        a = new THREE.Box3( zero3.clone(), zero3.clone() );
        ok( a.min.equals( zero3 ), "Passed!" );
        ok( a.max.equals( zero3 ), "Passed!" );

        a = new THREE.Box3( zero3.clone(), one3.clone() );
        ok( a.min.equals( zero3 ), "Passed!" );
        ok( a.max.equals( one3 ), "Passed!" );
    });

    test( "copy", function() {
        var a = new THREE.Box3( zero3.clone(), one3.clone() );
        var b = new THREE.Box3().copy( a );
        ok( b.min.equals( zero3 ), "Passed!" );
        ok( b.max.equals( one3 ), "Passed!" );

        // ensure that it is a true copy
        a.min = zero3;
        a.max = one3;
        ok( b.min.equals( zero3 ), "Passed!" );
        ok( b.max.equals( one3 ), "Passed!" );
    });

    test( "set", function() {
        var a = new THREE.Box3();

        a.set( zero3, one3 );
        ok( a.min.equals( zero3 ), "Passed!" );
        ok( a.max.equals( one3 ), "Passed!" );
    });

    test( "empty/makeEmpty", function() {
        var a = new THREE.Box3();

        ok( a.empty(), "Passed!" );

        var a = new THREE.Box3( zero3.clone(), one3.clone() );
        ok( ! a.empty(), "Passed!" );

        a.makeEmpty();
        ok( a.empty(), "Passed!" );
    });

    test( "center", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );

        ok( a.center().equals( zero3 ), "Passed!" );

        a = new THREE.Box3( zero3.clone(), one3.clone() );
        var midpoint = one3.clone().multiplyScalar( 0.5 );
        ok( a.center().equals( midpoint ), "Passed!" );
    });

    test( "size", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );

        ok( a.size().equals( zero3 ), "Passed!" );

        a = new THREE.Box3( zero3.clone(), one3.clone() );
        ok( a.size().equals( one3 ), "Passed!" );
    });

    test( "expandByPoint", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );

        a.expandByPoint( zero3 );
        ok( a.size().equals( zero3 ), "Passed!" );

        a.expandByPoint( one3 );
        ok( a.size().equals( one3 ), "Passed!" );

        a.expandByPoint( one3.clone().negate() );
        ok( a.size().equals( one3.clone().multiplyScalar( 2 ) ), "Passed!" );
        ok( a.center().equals( zero3 ), "Passed!" );
    });

    test( "expandByVector", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );

        a.expandByVector( zero3 );
        ok( a.size().equals( zero3 ), "Passed!" );

        a.expandByVector( one3 );
        ok( a.size().equals( one3.clone().multiplyScalar( 2 ) ), "Passed!" );
        ok( a.center().equals( zero3 ), "Passed!" );
    });

    test( "expandByScalar", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );

        a.expandByScalar( 0 );
        ok( a.size().equals( zero3 ), "Passed!" );

        a.expandByScalar( 1 );
        ok( a.size().equals( one3.clone().multiplyScalar( 2 ) ), "Passed!" );
        ok( a.center().equals( zero3 ), "Passed!" );
    });

    test( "containsPoint", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );

        ok( a.containsPoint( zero3 ), "Passed!" );
        ok( ! a.containsPoint( one3 ), "Passed!" );

        a.expandByScalar( 1 );
        ok( a.containsPoint( zero3 ), "Passed!" );
        ok( a.containsPoint( one3 ), "Passed!" );
        ok( a.containsPoint( one3.clone().negate() ), "Passed!" );
    });

    test( "containsBox", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( zero3.clone(), one3.clone() );
        var c = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.containsBox( a ), "Passed!" );
        ok( ! a.containsBox( b ), "Passed!" );
        ok( ! a.containsBox( c ), "Passed!" );

        ok( b.containsBox( a ), "Passed!" );
        ok( c.containsBox( a ), "Passed!" );
        ok( ! b.containsBox( c ), "Passed!" );
    });

    test( "getParameter", function() {
        var a = new THREE.Box3( zero3.clone(), one3.clone() );
        var b = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.getParameter( new THREE.Vector3( 0, 0, 0 ) ).equals( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
        ok( a.getParameter( new THREE.Vector3( 1, 1, 1 ) ).equals( new THREE.Vector3( 1, 1, 1 ) ), "Passed!" );

        ok( b.getParameter( new THREE.Vector3( -1, -1, -1 ) ).equals( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
        ok( b.getParameter( new THREE.Vector3( 0, 0, 0 ) ).equals( new THREE.Vector3( 0.5, 0.5, 0.5 ) ), "Passed!" );
        ok( b.getParameter( new THREE.Vector3( 1, 1, 1 ) ).equals( new THREE.Vector3( 1, 1, 1 ) ), "Passed!" );
    });

    test( "clampPoint", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.clampPoint( new THREE.Vector3( 0, 0, 0 ) ).equals( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
        ok( a.clampPoint( new THREE.Vector3( 1, 1, 1 ) ).equals( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
        ok( a.clampPoint( new THREE.Vector3( -1, -1, -1 ) ).equals( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );

        ok( b.clampPoint( new THREE.Vector3( 2, 2, 2 ) ).equals( new THREE.Vector3( 1, 1, 1 ) ), "Passed!" );
        ok( b.clampPoint( new THREE.Vector3( 1, 1, 1 ) ).equals( new THREE.Vector3( 1, 1, 1 ) ), "Passed!" );
        ok( b.clampPoint( new THREE.Vector3( 0, 0, 0 ) ).equals( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
        ok( b.clampPoint( new THREE.Vector3( -1, -1, -1 ) ).equals( new THREE.Vector3( -1, -1, -1 ) ), "Passed!" );
        ok( b.clampPoint( new THREE.Vector3( -2, -2, -2 ) ).equals( new THREE.Vector3( -1, -1, -1 ) ), "Passed!" );
    });

    test( "distanceToPoint", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.distanceToPoint( new THREE.Vector3( 0, 0, 0 ) ) == 0, "Passed!" );
        ok( a.distanceToPoint( new THREE.Vector3( 1, 1, 1 ) ) == Math.sqrt( 3 ), "Passed!" );
        ok( a.distanceToPoint( new THREE.Vector3( -1, -1, -1 ) ) == Math.sqrt( 3 ), "Passed!" );

        ok( b.distanceToPoint( new THREE.Vector3( 2, 2, 2 ) ) == Math.sqrt( 3 ), "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector3( 1, 1, 1 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector3( 0, 0, 0 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector3( -1, -1, -1 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector3( -2, -2, -2 ) ) == Math.sqrt( 3 ), "Passed!" );
    });

    test( "distanceToPoint", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.distanceToPoint( new THREE.Vector3( 0, 0, 0 ) ) == 0, "Passed!" );
        ok( a.distanceToPoint( new THREE.Vector3( 1, 1, 1 ) ) == Math.sqrt( 3 ), "Passed!" );
        ok( a.distanceToPoint( new THREE.Vector3( -1, -1, -1 ) ) == Math.sqrt( 3 ), "Passed!" );

        ok( b.distanceToPoint( new THREE.Vector3( 2, 2, 2 ) ) == Math.sqrt( 3 ), "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector3( 1, 1, 1 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector3( 0, 0, 0 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector3( -1, -1, -1 ) ) == 0, "Passed!" );
        ok( b.distanceToPoint( new THREE.Vector3( -2, -2, -2 ) ) == Math.sqrt( 3 ), "Passed!" );
    });

    test( "isIntersectionBox", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( zero3.clone(), one3.clone() );
        var c = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.isIntersectionBox( a ), "Passed!" );
        ok( a.isIntersectionBox( b ), "Passed!" );
        ok( a.isIntersectionBox( c ), "Passed!" );

        ok( b.isIntersectionBox( a ), "Passed!" );
        ok( c.isIntersectionBox( a ), "Passed!" );
        ok( b.isIntersectionBox( c ), "Passed!" );

        b.translate( new THREE.Vector3( 2, 2, 2 ) );
        ok( ! a.isIntersectionBox( b ), "Passed!" );
        ok( ! b.isIntersectionBox( a ), "Passed!" );
        ok( ! b.isIntersectionBox( c ), "Passed!" );
    });

    test( "getBoundingSphere", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( zero3.clone(), one3.clone() );
        var c = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.getBoundingSphere().equals( new THREE.Sphere( zero3, 0 ) ), "Passed!" );
        ok( b.getBoundingSphere().equals( new THREE.Sphere( one3.clone().multiplyScalar( 0.5 ), Math.sqrt( 3 ) * 0.5 ) ), "Passed!" );
        ok( c.getBoundingSphere().equals( new THREE.Sphere( zero3, Math.sqrt( 12 ) * 0.5 ) ), "Passed!" );
    });

    test( "intersect", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( zero3.clone(), one3.clone() );
        var c = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.clone().intersect( a ).equals( a ), "Passed!" );
        ok( a.clone().intersect( b ).equals( a ), "Passed!" );
        ok( b.clone().intersect( b ).equals( b ), "Passed!" );
        ok( a.clone().intersect( c ).equals( a ), "Passed!" );
        ok( b.clone().intersect( c ).equals( b ), "Passed!" );
        ok( c.clone().intersect( c ).equals( c ), "Passed!" );
    });

    test( "union", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( zero3.clone(), one3.clone() );
        var c = new THREE.Box3( one3.clone().negate(), one3.clone() );

        ok( a.clone().union( a ).equals( a ), "Passed!" );
        ok( a.clone().union( b ).equals( b ), "Passed!" );
        ok( a.clone().union( c ).equals( c ), "Passed!" );
        ok( b.clone().union( c ).equals( c ), "Passed!" );
    });

    var compareBox = function ( a, b, threshold? ) {
        threshold = threshold || 0.0001;
        return ( a.min.distanceTo( b.min ) < threshold &&
        a.max.distanceTo( b.max ) < threshold );
    };

    test( "applyMatrix4", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( zero3.clone(), one3.clone() );
        var c = new THREE.Box3( one3.clone().negate(), one3.clone() );
        var d = new THREE.Box3( one3.clone().negate(), zero3.clone() );

        var m = new THREE.Matrix4().makeTranslation( 1, -2, 1 );
        var t1 = new THREE.Vector3( 1, -2, 1 );

        ok( compareBox( a.clone().applyMatrix4( m ), a.clone().translate( t1 ) ), "Passed!" );
        ok( compareBox( b.clone().applyMatrix4( m ), b.clone().translate( t1 ) ), "Passed!" );
        ok( compareBox( c.clone().applyMatrix4( m ), c.clone().translate( t1 ) ), "Passed!" );
        ok( compareBox( d.clone().applyMatrix4( m ), d.clone().translate( t1 ) ), "Passed!" );
    });

    test( "translate", function() {
        var a = new THREE.Box3( zero3.clone(), zero3.clone() );
        var b = new THREE.Box3( zero3.clone(), one3.clone() );
        var c = new THREE.Box3( one3.clone().negate(), one3.clone() );
        var d = new THREE.Box3( one3.clone().negate(), zero3.clone() );

        ok( a.clone().translate( one3 ).equals( new THREE.Box3( one3, one3 ) ), "Passed!" );
        ok( a.clone().translate( one3 ).translate( one3.clone().negate() ).equals( a ), "Passed!" );
        ok( d.clone().translate( one3 ).equals( b ), "Passed!" );
        ok( b.clone().translate( one3.clone().negate() ).equals( d ), "Passed!" );
    });

    test( "constructor", function(){
        var c = new THREE.Color();
        ok( c.r, "Red: " + c.r );
        ok( c.g, "Green: " + c.g );
        ok( c.b, "Blue: " + c.g );
    });

    test( "copyHex", function(){
        var c = new THREE.Color();
        var c2 = new THREE.Color(0xF5FFFA);
        c.copy(c2);
        ok(c.getHex() == c2.getHex(), "Hex c: " + c.getHex() + " Hex c2: " + c2.getHex());
    });

    test( "copyColorString", function(){
        var c = new THREE.Color();
        var c2 = new THREE.Color('ivory');
        c.copy(c2);
        ok(c.getHex() == c2.getHex(), "Hex c: " + c.getHex() + " Hex c2: " + c2.getHex());
    });

    test( "setRGB", function(){
        var c = new THREE.Color()
        c.setRGB(255, 2, 1);
        ok( c.r == 255, "Red: " + c.r );
        ok( c.g == 2, "Green: " + c.g );
        ok( c.b == 1, "Blue: " + c.b );
    });

    test( "copyGammaToLinear", function(){
        var c = new THREE.Color();
        var c2 = new THREE.Color();
        c2.setRGB(2, 4, 8)
        c.copyGammaToLinear(c2)
        ok( c.r == 4, "Red c: " + c.r + " Red c2: " + c2.r);
        ok( c.g == 16, "Green c: " + c.g + " Green c2: " + c2.g);
        ok( c.b == 64, "Blue c: " + c.b + " Blue c2: " + c2.b);
    });

    test( "copyLinearToGamma", function(){
        var c = new THREE.Color();
        var c2 = new THREE.Color();
        c2.setRGB(4, 9, 16)
        c.copyLinearToGamma(c2)
        ok( c.r == 2, "Red c: " + c.r + " Red c2: " + c2.r);
        ok( c.g == 3, "Green c: " + c.g + " Green c2: " + c2.g);
        ok( c.b == 4, "Blue c: " + c.b + " Blue c2: " + c2.b);
    });


    test( "convertGammaToLinear", function(){
        var c = new THREE.Color();
        c.setRGB(2, 4, 8)
        c.convertGammaToLinear()
        ok( c.r == 4, "Red: " + c.r );
        ok( c.g == 16, "Green: " + c.g );
        ok( c.b == 64, "Blue: " + c.b );
    });


    test( "convertLinearToGamma", function(){
        var c = new THREE.Color();
        c.setRGB(4, 9, 16)
        c.convertLinearToGamma()
        ok( c.r == 2, "Red: " + c.r );
        ok( c.g == 3, "Green: " + c.g );
        ok( c.b == 4, "Blue: " + c.b );
    });

    test("setWithNum", function(){
        var c = new THREE.Color();
        c.set(0xFF0000);
        ok( c.r == 1, "Red: " + c.r );
        ok( c.g == 0, "Green: " + c.g );
        ok( c.b == 0, "Blue: " + c.b );
    });


    test( "setWithString", function(){
        var c = new THREE.Color();
        c.set('silver');
        ok(c.getHex() == 0xC0C0C0, "Hex c: " + c.getHex());
    });


    test( "clone", function(){
        var c = new THREE.Color('teal');
        var c2 = c.clone();
        ok(c2.getHex() == 0x008080, "Hex c2: " + c2.getHex());
    });

    test( "lerp", function(){
        var c = new THREE.Color();
        var c2 = new THREE.Color();
        c.setRGB(0, 0, 0);
        c.lerp(c2, 2);
        ok( c.r == 2, "Red: " + c.r );
        ok( c.g == 2, "Green: " + c.g );
        ok( c.b == 2, "Blue: " + c.b );
        
    });


    test( "setStyleRGBRed", function(){
        var c = new THREE.Color();
        c.setStyle('rgb(255,0,0)');
        ok( c.r == 1, "Red: " + c.r );
        ok( c.g == 0, "Green: " + c.g );
        ok( c.b == 0, "Blue: " + c.b );
    });

    test( "setStyleRGBPercent", function(){
        var c = new THREE.Color();
        c.setStyle('rgb(100%,50%,10%)');
        ok( c.r == 1, "Red: " + c.r );
        ok( c.g == 0.5, "Green: " + c.g );
        ok( c.b == 0.1, "Blue: " + c.b );
    });

    test( "setStyleHexSkyBlue", function(){
        var c = new THREE.Color();
        c.setStyle('#87CEEB');
        ok(c.getHex() == 0x87CEEB, "Hex c: " + c.getHex());
    });

    test( "setStyleHex2Olive", function(){
        var c = new THREE.Color();
        c.setStyle('#F00');
        ok(c.getHex() == 0xFF0000, "Hex c: " + c.getHex());
    });

    test( "setStyleColorName", function(){
        var c = new THREE.Color();
        c.setStyle('powderblue');
        ok(c.getHex() == 0xB0E0E6, "Hex c: " + c.getHex());
    });


    test( "getHex", function(){
        var c = new THREE.Color('red');
        var res = c.getHex();
        ok( res == 0xFF0000, "Hex: " + res );
    });

    test( "setHex", function(){
        var c = new THREE.Color();
        c.setHex(0xFA8072);
        ok( c.getHex() == 0xFA8072, "Hex: " + c.getHex());
    });

    test( "getHexString", function(){
        var c = new THREE.Color('tomato');
        var res = c.getHexString();
        ok( res == 'ff6347', "Hex: " + res );
    });

    test( "getStyle", function(){
        var c = new THREE.Color('plum');
        var res = c.getStyle();
        ok( res == 'rgb(221,160,221)', "style: " + res );
    });

    test( "getHSL", function () {
        var c = new THREE.Color( 0x80ffff );
        var hsl = c.getHSL();

        ok( hsl.h == 0.5, "hue: " + hsl.h );
        ok( hsl.s == 1.0, "saturation: " + hsl.s );


        //ok( (Math.round(parseFloat(hsl.l)*100)/100) == 0.75, "lightness: " + hsl.l );
        ok( (Math.round(hsl.l*100)/100) == 0.75, "lightness: " + hsl.l );
    });

    test( "setHSL", function () {
        var c = new THREE.Color();
        c.setHSL(0.75, 1.0, 0.25);
        var hsl = c.getHSL();

        ok( hsl.h == 0.75, "hue: " + hsl.h );
        ok( hsl.s == 1.00, "saturation: " + hsl.s );
        ok( hsl.l == 0.25, "lightness: " + hsl.l );
    });

    var unit3 = new THREE.Vector3( 1, 0, 0 );

    var planeEquals = function ( a, b, tolerance ) {
        tolerance = tolerance || 0.0001;
        if( a.normal.distanceTo( b.normal ) > tolerance ) {
            return false;
        }
        if( Math.abs( a.constant - b.constant ) > tolerance ) {
            return false;
        }
        return true;
    };

    test( "constructor", function() {
        var a = new THREE.Frustum();

        ok( a.planes !== undefined, "Passed!" );
        ok( a.planes.length === 6, "Passed!" );

        var pDefault = new THREE.Plane();
        for( var i = 0; i < 6; i ++ ) {
            ok( a.planes[i].equals( pDefault ), "Passed!" );
        }

        var p0 = new THREE.Plane( unit3, -1 );
        var p1 = new THREE.Plane( unit3, 1 );
        var p2 = new THREE.Plane( unit3, 2 );
        var p3 = new THREE.Plane( unit3, 3 );
        var p4 = new THREE.Plane( unit3, 4 );
        var p5 = new THREE.Plane( unit3, 5 );

        a = new THREE.Frustum( p0, p1, p2, p3, p4, p5 );
        ok( a.planes[0].equals( p0 ), "Passed!" );
        ok( a.planes[1].equals( p1 ), "Passed!" );
        ok( a.planes[2].equals( p2 ), "Passed!" );
        ok( a.planes[3].equals( p3 ), "Passed!" );
        ok( a.planes[4].equals( p4 ), "Passed!" );
        ok( a.planes[5].equals( p5 ), "Passed!" );
    });

    test( "copy", function() {

        var p0 = new THREE.Plane( unit3, -1 );
        var p1 = new THREE.Plane( unit3, 1 );
        var p2 = new THREE.Plane( unit3, 2 );
        var p3 = new THREE.Plane( unit3, 3 );
        var p4 = new THREE.Plane( unit3, 4 );
        var p5 = new THREE.Plane( unit3, 5 );

        var b = new THREE.Frustum( p0, p1, p2, p3, p4, p5 );
        var a = new THREE.Frustum().copy( b );
        ok( a.planes[0].equals( p0 ), "Passed!" );
        ok( a.planes[1].equals( p1 ), "Passed!" );
        ok( a.planes[2].equals( p2 ), "Passed!" );
        ok( a.planes[3].equals( p3 ), "Passed!" );
        ok( a.planes[4].equals( p4 ), "Passed!" );
        ok( a.planes[5].equals( p5 ), "Passed!" );

        // ensure it is a true copy by modifying source
        b.planes[0] = p1;
        ok( a.planes[0].equals( p0 ), "Passed!" );
    });

    test( "setFromMatrix/makeOrthographic/containsPoint", function() {
        var m = new THREE.Matrix4().makeOrthographic( -1, 1, -1, 1, 1, 100 )
        var a = new THREE.Frustum().setFromMatrix( m );

        ok( ! a.containsPoint( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 0, 0, -50 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 0, 0, -1.001 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( -1, -1, -1.001 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( -1.1, -1.1, -1.001 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 1, 1, -1.001 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( 1.1, 1.1, -1.001 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 0, 0, -100 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( -1, -1, -100 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( -1.1, -1.1, -100.1 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 1, 1, -100 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( 1.1, 1.1, -100.1 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( 0, 0, -101 ) ), "Passed!" );

    });

    test( "setFromMatrix/makeFrustum/containsPoint", function() {
        var m = new THREE.Matrix4().makeFrustum( -1, 1, -1, 1, 1, 100 )
        var a = new THREE.Frustum().setFromMatrix( m );

        ok( ! a.containsPoint( new THREE.Vector3( 0, 0, 0 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 0, 0, -50 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 0, 0, -1.001 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( -1, -1, -1.001 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( -1.1, -1.1, -1.001 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 1, 1, -1.001 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( 1.1, 1.1, -1.001 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 0, 0, -99.999 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( -99.999, -99.999, -99.999 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( -100.1, -100.1, -100.1 ) ), "Passed!" );
        ok( a.containsPoint( new THREE.Vector3( 99.999, 99.999, -99.999 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( 100.1, 100.1, -100.1 ) ), "Passed!" );
        ok( ! a.containsPoint( new THREE.Vector3( 0, 0, -101 ) ), "Passed!" );
    });

    test( "setFromMatrix/makeFrustum/intersectsSphere", function() {
        var m = new THREE.Matrix4().makeFrustum( -1, 1, -1, 1, 1, 100 )
        var a = new THREE.Frustum().setFromMatrix( m );

        ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, 0 ), 0 ) ), "Passed!" );
        ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, 0 ), 0.9 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, 0 ), 1.1 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -50 ), 0 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -1.001 ), 0 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -1, -1, -1.001 ), 0 ) ), "Passed!" );
        ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -1.1, -1.1, -1.001 ), 0 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -1.1, -1.1, -1.001 ), 0.5 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 1, 1, -1.001 ), 0 ) ), "Passed!" );
        ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 1.1, 1.1, -1.001 ), 0 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 1.1, 1.1, -1.001 ), 0.5 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -99.999 ), 0 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -99.999, -99.999, -99.999 ), 0 ) ), "Passed!" );
        ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -100.1, -100.1, -100.1 ), 0 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( -100.1, -100.1, -100.1 ), 0.5 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 99.999, 99.999, -99.999 ), 0 ) ), "Passed!" );
        ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 100.1, 100.1, -100.1 ), 0 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 100.1, 100.1, -100.1 ), 0.2 ) ), "Passed!" );
        ok( ! a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -101 ), 0 ) ), "Passed!" );
        ok( a.intersectsSphere( new THREE.Sphere( new THREE.Vector3( 0, 0, -101 ), 1.1 ) ), "Passed!" );
    });

    test( "clone", function() {

        var p0 = new THREE.Plane( unit3, -1 );
        var p1 = new THREE.Plane( unit3, 1 );
        var p2 = new THREE.Plane( unit3, 2 );
        var p3 = new THREE.Plane( unit3, 3 );
        var p4 = new THREE.Plane( unit3, 4 );
        var p5 = new THREE.Plane( unit3, 5 );

        var b = new THREE.Frustum( p0, p1, p2, p3, p4, p5 );
        var a = b.clone();
        ok( a.planes[0].equals( p0 ), "Passed!" );
        ok( a.planes[1].equals( p1 ), "Passed!" );
        ok( a.planes[2].equals( p2 ), "Passed!" );
        ok( a.planes[3].equals( p3 ), "Passed!" );
        ok( a.planes[4].equals( p4 ), "Passed!" );
        ok( a.planes[5].equals( p5 ), "Passed!" );

        // ensure it is a true copy by modifying source
        a.planes[0].copy( p1 );
        ok( b.planes[0].equals( p0 ), "Passed!" );
    });


    test( "constructor/equals", function() {
        var a = new THREE.Line3();
        ok( a.start.equals( zero3 ), "Passed!" );
        ok( a.end.equals( zero3 ), "Passed!" );

        a = new THREE.Line3( two3.clone(), one3.clone() );
        ok( a.start.equals( two3 ), "Passed!" );
        ok( a.end.equals( one3 ), "Passed!" );
    });

    test( "copy/equals", function() {
        var a = new THREE.Line3( zero3.clone(), one3.clone() );
        var b = new THREE.Line3().copy( a );
        ok( b.start.equals( zero3 ), "Passed!" );
        ok( b.end.equals( one3 ), "Passed!" );

        // ensure that it is a true copy
        a.start = zero3;
        a.end = one3;
        ok( b.start.equals( zero3 ), "Passed!" );
        ok( b.end.equals( one3 ), "Passed!" );
    });

    test( "set", function() {
        var a = new THREE.Line3();

        a.set( one3, one3 );
        ok( a.start.equals( one3 ), "Passed!" );
        ok( a.end.equals( one3 ), "Passed!" );
    });

    test( "at", function() {
        var a = new THREE.Line3( one3.clone(), new THREE.Vector3( 1, 1, 2 ) );

        ok( a.at( -1 ).distanceTo( new THREE.Vector3( 1, 1, 0 ) ) < 0.0001, "Passed!" );
        ok( a.at( 0 ).distanceTo( one3.clone() ) < 0.0001, "Passed!" );
        ok( a.at( 1 ).distanceTo( new THREE.Vector3( 1, 1, 2 ) ) < 0.0001, "Passed!" );
        ok( a.at( 2 ).distanceTo( new THREE.Vector3( 1, 1, 3 ) ) < 0.0001, "Passed!" );
    });

    test( "closestPointToPoint/closestPointToPointParameter", function() {
        var a = new THREE.Line3( one3.clone(), new THREE.Vector3( 1, 1, 2 ) );

        // nearby the ray
        ok( a.closestPointToPointParameter( zero3.clone(), true ) == 0, "Passed!" );
        var b1 = a.closestPointToPoint( zero3.clone(), true );
        ok( b1.distanceTo( new THREE.Vector3( 1, 1, 1 ) ) < 0.0001, "Passed!" );

        // nearby the ray
        ok( a.closestPointToPointParameter( zero3.clone(), false ) == -1, "Passed!" );
        var b2 = a.closestPointToPoint( zero3.clone(), false );
        console.log( b2 );
        ok( b2.distanceTo( new THREE.Vector3( 1, 1, 0 ) ) < 0.0001, "Passed!" );

        // nearby the ray
        ok( a.closestPointToPointParameter( new THREE.Vector3( 1, 1, 5 ), true ) == 1, "Passed!" );
        var b = a.closestPointToPoint( new THREE.Vector3( 1, 1, 5 ), true );
        ok( b.distanceTo( new THREE.Vector3( 1, 1, 2 ) ) < 0.0001, "Passed!" );

        // exactly on the ray
        ok( a.closestPointToPointParameter( one3.clone(), true ) == 0, "Passed!" );
        var c = a.closestPointToPoint( one3.clone(), true );
        ok( c.distanceTo( one3.clone() ) < 0.0001, "Passed!" );
    });



    var matrixEquals3 = function( a, b, tolerance? ) {
        tolerance = tolerance || 0.0001;
        if( a.elements.length != b.elements.length ) {
            return false;
        }
        for( var i = 0, il = a.elements.length; i < il; i ++ ) {
            var delta = a.elements[i] - b.elements[i];
            if( delta > tolerance ) {
                return false;
            }
        }
        return true;
    };


    var toMatrix4 = function( m3 ) {
        var result = new THREE.Matrix4();
        var re = result.elements;
        var me = m3.elements;
        re[0] = me[0];
        re[1] = me[1];
        re[2] = me[2];
        re[4] = me[3];
        re[5] = me[4];
        re[6] = me[5];
        re[8] = me[6];
        re[9] = me[7];
        re[10] = me[8];

        return result;
    };

    test( "constructor", function() {
        var a = new THREE.Matrix3();
        ok( a.determinant() == 1, "Passed!" );

        var b = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
        ok( b.elements[0] == 0 );
        ok( b.elements[1] == 3 );
        ok( b.elements[2] == 6 );
        ok( b.elements[3] == 1 );
        ok( b.elements[4] == 4 );
        ok( b.elements[5] == 7 );
        ok( b.elements[6] == 2 );
        ok( b.elements[7] == 5 );
        ok( b.elements[8] == 8 );

        ok( ! matrixEquals3( a, b ), "Passed!" );
    });

    test( "copy", function() {
        var a = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
        var b = new THREE.Matrix3().copy( a );

        ok( matrixEquals3( a, b ), "Passed!" );

        // ensure that it is a true copy
        a.elements[0] = 2;
        ok( ! matrixEquals3( a, b ), "Passed!" );
    });

    test( "set", function() {
        var b = new THREE.Matrix3();
        ok( b.determinant() == 1, "Passed!" );

        b.set( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
        ok( b.elements[0] == 0 );
        ok( b.elements[1] == 3 );
        ok( b.elements[2] == 6 );
        ok( b.elements[3] == 1 );
        ok( b.elements[4] == 4 );
        ok( b.elements[5] == 7 );
        ok( b.elements[6] == 2 );
        ok( b.elements[7] == 5 );
        ok( b.elements[8] == 8 );
    });

    test( "identity", function() {
        var b = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
        ok( b.elements[0] == 0 );
        ok( b.elements[1] == 3 );
        ok( b.elements[2] == 6 );
        ok( b.elements[3] == 1 );
        ok( b.elements[4] == 4 );
        ok( b.elements[5] == 7 );
        ok( b.elements[6] == 2 );
        ok( b.elements[7] == 5 );
        ok( b.elements[8] == 8 );

        var a = new THREE.Matrix3();
        ok( ! matrixEquals3( a, b ), "Passed!" );

        b.identity();
        ok( matrixEquals3( a, b ), "Passed!" );
    });

    test( "multiplyScalar", function() {
        var b = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
        ok( b.elements[0] == 0 );
        ok( b.elements[1] == 3 );
        ok( b.elements[2] == 6 );
        ok( b.elements[3] == 1 );
        ok( b.elements[4] == 4 );
        ok( b.elements[5] == 7 );
        ok( b.elements[6] == 2 );
        ok( b.elements[7] == 5 );
        ok( b.elements[8] == 8 );

        b.multiplyScalar( 2 );
        ok( b.elements[0] == 0*2 );
        ok( b.elements[1] == 3*2 );
        ok( b.elements[2] == 6*2 );
        ok( b.elements[3] == 1*2 );
        ok( b.elements[4] == 4*2 );
        ok( b.elements[5] == 7*2 );
        ok( b.elements[6] == 2*2 );
        ok( b.elements[7] == 5*2 );
        ok( b.elements[8] == 8*2 );
    });

    test( "determinant", function() {
        var a = new THREE.Matrix3();
        ok( a.determinant() == 1, "Passed!" );

        a.elements[0] = 2;
        ok( a.determinant() == 2, "Passed!" );

        a.elements[0] = 0;
        ok( a.determinant() == 0, "Passed!" );

        // calculated via http://www.euclideanspace.com/maths/algebra/matrix/functions/determinant/threeD/index.htm
        a.set( 2, 3, 4, 5, 13, 7, 8, 9, 11 );
        ok( a.determinant() == -73, "Passed!" );
    });


    test( "getInverse", function() {
        var identity = new THREE.Matrix4();
        var a = new THREE.Matrix4();
        var b = new THREE.Matrix3( 0, 0, 0, 0, 0, 0, 0, 0, 0 );

        //var c = new THREE.Matrix4( 0, 0, 0, 0, 0, 0, 0, 0, 0 );
        var c = new THREE.Matrix4( 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 );

        ok( ! matrixEquals3( a, b ), "Passed!" );
        b.getInverse( a, false );
        ok( matrixEquals3( b, new THREE.Matrix3() ), "Passed!" );

        try { 
            b.getInverse( c, true );
            ok( false, "Passed!" ); // should never get here.
        }
        catch( err ) {
            ok( true, "Passed!" );
        }

        var testMatrices = [
            new THREE.Matrix4().makeRotationX( 0.3 ),
            new THREE.Matrix4().makeRotationX( -0.3 ),
            new THREE.Matrix4().makeRotationY( 0.3 ),
            new THREE.Matrix4().makeRotationY( -0.3 ),
            new THREE.Matrix4().makeRotationZ( 0.3 ),
            new THREE.Matrix4().makeRotationZ( -0.3 ),
            new THREE.Matrix4().makeScale( 1, 2, 3 ),
            new THREE.Matrix4().makeScale( 1/8, 1/2, 1/3 )
            ];

        for( var i = 0, il = testMatrices.length; i < il; i ++ ) {
            var m = testMatrices[i];
            var mInverse3 = new THREE.Matrix3().getInverse( m );

            var mInverse = toMatrix4( mInverse3 );

            // the determinant of the inverse should be the reciprocal
            ok( Math.abs( m.determinant() * mInverse3.determinant() - 1 ) < 0.0001, "Passed!" );
            ok( Math.abs( m.determinant() * mInverse.determinant() - 1 ) < 0.0001, "Passed!" );

            var mProduct = new THREE.Matrix4().multiplyMatrices( m, mInverse );
            ok( Math.abs( mProduct.determinant() - 1 ) < 0.0001, "Passed!" );
            ok( matrixEquals3( mProduct, identity ), "Passed!" );
        }
    });

    test( "transpose", function() {
        var a = new THREE.Matrix3();
        var b = a.clone().transpose();
        ok( matrixEquals3( a, b ), "Passed!" );

        b = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
        var c = b.clone().transpose();
        ok( ! matrixEquals3( b, c ), "Passed!" ); 
        c.transpose();
        ok( matrixEquals3( b, c ), "Passed!" ); 
    });

    test( "clone", function() {
        var a = new THREE.Matrix3( 0, 1, 2, 3, 4, 5, 6, 7, 8 );
        var b = a.clone();

        ok( matrixEquals3( a, b ), "Passed!" );

        // ensure that it is a true copy
        a.elements[0] = 2;
        ok( ! matrixEquals3( a, b ), "Passed!" );
    });

    var matrixEquals4 = function( a, b, tolerance? ) {
        tolerance = tolerance || 0.0001;
        if( a.elements.length != b.elements.length ) {
            return false;
        }
        for( var i = 0, il = a.elements.length; i < il; i ++ ) {
            var delta = a.elements[i] - b.elements[i];
            if( delta > tolerance ) {
                return false;
            }
        }
        return true;
    };

    test( "constructor", function() {
        var a = new THREE.Matrix4();
        ok( a.determinant() == 1, "Passed!" );

        var b = new THREE.Matrix4( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 );
        ok( b.elements[0] == 0 );
        ok( b.elements[1] == 4 );
        ok( b.elements[2] == 8 );
        ok( b.elements[3] == 12 );
        ok( b.elements[4] == 1 );
        ok( b.elements[5] == 5 );
        ok( b.elements[6] == 9 );
        ok( b.elements[7] == 13 );
        ok( b.elements[8] == 2 );
        ok( b.elements[9] == 6 );
        ok( b.elements[10] == 10 );
        ok( b.elements[11] == 14 );
        ok( b.elements[12] == 3 );
        ok( b.elements[13] == 7 );
        ok( b.elements[14] == 11 );
        ok( b.elements[15] == 15 );

        ok( ! matrixEquals4( a, b ), "Passed!" );
    });

    test( "copy", function() {
        var a = new THREE.Matrix4( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 );
        var b = new THREE.Matrix4().copy( a );

        ok( matrixEquals4( a, b ), "Passed!" );

        // ensure that it is a true copy
        a.elements[0] = 2;
        ok( ! matrixEquals4( a, b ), "Passed!" );
    });

    test( "set", function() {
        var b = new THREE.Matrix4();
        ok( b.determinant() == 1, "Passed!" );

        b.set( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 );
        ok( b.elements[0] == 0 );
        ok( b.elements[1] == 4 );
        ok( b.elements[2] == 8 );
        ok( b.elements[3] == 12 );
        ok( b.elements[4] == 1 );
        ok( b.elements[5] == 5 );
        ok( b.elements[6] == 9 );
        ok( b.elements[7] == 13 );
        ok( b.elements[8] == 2 );
        ok( b.elements[9] == 6 );
        ok( b.elements[10] == 10 );
        ok( b.elements[11] == 14 );
        ok( b.elements[12] == 3 );
        ok( b.elements[13] == 7 );
        ok( b.elements[14] == 11 );
        ok( b.elements[15] == 15 );
    });

    test( "identity", function() {
        var b = new THREE.Matrix4( 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 );
        ok( b.elements[0] == 0 );
        ok( b.elements[1] == 4 );
        ok( b.elements[2] == 8 );
        ok( b.elements[3] == 12 );
        ok( b.elements[4] == 1 );
        ok( b.elements[5] ==