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Improved vector-test.js' mutation score to 0.85 #18

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Improved vector-test.js' mutation score to 0.85 #18

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31 changes: 31 additions & 0 deletions tests/vector-test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,11 @@ var v = require('../').vector;
var should = require('should');

describe('Creating vectors: ', function () {
it('truly creates a vector', function () {
var a = new v(1);
a.isVector.should.eql(true);
});

it('Should pass with 3 arguments', function () {
var a = new v(1,0,0);
a.v.length.should.eql(3);
Expand Down Expand Up @@ -29,28 +34,54 @@ describe('Creating vectors: ', function () {

var a = new v(1,0,0);
var b = new v(1,1,0);
var d = new v(0,1,1);

describe('Between two vectors: ', function () {
it('should add two vectors easily', function () {
var c = a.add(b);
c.v.length.should.eql(3);
c.v.should.eql([ 2, 1, 0 ]);

var c = a.add(d);
c.v.length.should.eql(3);
c.v.should.eql([ 1, 1, 1 ]);
});

it('should calculate the dot product', function () {
var c = a.dot(b);
c.should.eql(1);

var c = a.dot(d);
c.should.eql(0);
});

it('should calculate the cross product', function () {
var c = a.cross(b);
c.v.length.should.eql(3);
c.v.should.eql([0,0,1]);

var c = b.cross(a);
c.v.length.should.eql(3);
c.v.should.eql([0,0,-1]);

var c = a.cross(d);
c.v.length.should.eql(3);
c.v.should.eql([0,-1,1]);

var c = d.cross(b);
c.v.length.should.eql(3);
c.v.should.eql([-1,1,-1]);
});

it('should calculate the distance between the two', function () {
var c = a.distanceFrom(b);
c.should.eql(1);

var c = a.distanceFrom(a);
c.should.eql(0);

var c = b.distanceFrom(d);
c.should.eql(Math.sqrt(2));
});

it('should calculate the length of the vector', function () {
Expand Down