The Tor Browser: browser/devtools/tilt/test/browser_tilt

     1 /* Any copyright is dedicated to the Public Domain.

     2    http://creativecommons.org/publicdomain/zero/1.0/ */

     3 "use strict";

     5 function test() {

     6   let v1 = vec3.create();

     8   ok(v1, "Should have created a vector with vec3.create().");

     9   is(v1.length, 3, "A vec3 should have 3 elements.");

    11   ok(isApproxVec(v1, [0, 0, 0]),

    12     "When created, a vec3 should have the values default to 0.");

    14   vec3.set([1, 2, 3], v1);

    15   ok(isApproxVec(v1, [1, 2, 3]),

    16     "The vec3.set() function didn't set the values correctly.");

    18   vec3.zero(v1);

    19   ok(isApproxVec(v1, [0, 0, 0]),

    20     "The vec3.zero() function didn't set the values correctly.");

    22   let v2 = vec3.create([4, 5, 6]);

    23   ok(isApproxVec(v2, [4, 5, 6]),

    24     "When cloning arrays, a vec3 should have the values copied.");

    26   let v3 = vec3.create(v2);

    27   ok(isApproxVec(v3, [4, 5, 6]),

    28     "When cloning vectors, a vec3 should have the values copied.");

    30   vec3.add(v2, v3);

    31   ok(isApproxVec(v2, [8, 10, 12]),

    32     "The vec3.add() function didn't set the x value correctly.");

    34   vec3.subtract(v2, v3);

    35   ok(isApproxVec(v2, [4, 5, 6]),

    36     "The vec3.subtract() function didn't set the values correctly.");

    38   vec3.negate(v2);

    39   ok(isApproxVec(v2, [-4, -5, -6]),

    40     "The vec3.negate() function didn't set the values correctly.");

    42   vec3.scale(v2, -2);

    43   ok(isApproxVec(v2, [8, 10, 12]),

    44     "The vec3.scale() function didn't set the values correctly.");

    46   vec3.normalize(v1);

    47   ok(isApproxVec(v1, [0, 0, 0]),

    48     "Normalizing a vector with zero length should return [0, 0, 0].");

    50   vec3.normalize(v2);

    51   ok(isApproxVec(v2, [

    52     0.4558423161506653, 0.5698028802871704, 0.6837634444236755

    53   ]), "The vec3.normalize() function didn't set the values correctly.");

    55   vec3.cross(v2, v3);

    56   ok(isApproxVec(v2, [

    57     5.960464477539063e-8, -1.1920928955078125e-7, 5.960464477539063e-8

    58   ]), "The vec3.cross() function didn't set the values correctly.");

    60   vec3.dot(v2, v3);

    61   ok(isApproxVec(v2, [

    62     5.960464477539063e-8, -1.1920928955078125e-7, 5.960464477539063e-8

    63   ]), "The vec3.dot() function didn't set the values correctly.");

    65   ok(isApproxVec([vec3.length(v2)], [1.4600096599955427e-7]),

    66     "The vec3.length() function didn't calculate the value correctly.");

    68   vec3.direction(v2, v3);

    69   ok(isApproxVec(v2, [

    70     -0.4558422863483429, -0.5698028802871704, -0.6837634444236755

    71   ]), "The vec3.direction() function didn't set the values correctly.");

    73   vec3.lerp(v2, v3, 0.5);

    74   ok(isApproxVec(v2, [

    75     1.7720788717269897, 2.2150986194610596, 2.65811824798584

    76   ]), "The vec3.lerp() function didn't set the values correctly.");

    79   vec3.project([100, 100, 10], [0, 0, 100, 100],

    80     mat4.create(), mat4.perspective(45, 1, 0.1, 100), v1);

    81   ok(isApproxVec(v1, [-1157.10693359375, 1257.10693359375, 0]),

    82     "The vec3.project() function didn't set the values correctly.");

    84   vec3.unproject([100, 100, 1], [0, 0, 100, 100],

    85     mat4.create(), mat4.perspective(45, 1, 0.1, 100), v1);

    86   ok(isApproxVec(v1, [

    87     41.420406341552734, -41.420406341552734, -99.99771118164062

    88   ]), "The vec3.project() function didn't set the values correctly.");

    91   let ray = vec3.createRay([10, 10, 0], [100, 100, 1], [0, 0, 100, 100],

    92     mat4.create(), mat4.perspective(45, 1, 0.1, 100));

    94   ok(isApproxVec(ray.origin, [

    95     -0.03313708305358887, 0.03313708305358887, -0.1000000014901161

    96   ]), "The vec3.createRay() function didn't create the position correctly.");

    97   ok(isApproxVec(ray.direction, [

    98     0.35788586614428364, -0.35788586614428364, -0.862458934459091

    99   ]), "The vec3.createRay() function didn't create the direction correctly.");

   102   is(vec3.str([0, 0, 0]), "[0, 0, 0]",

   103     "The vec3.str() function didn't work properly.");

   104 }

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