| // Load modules |
| |
| var Lab = require('lab'); |
| var Cryptiles = require('../lib'); |
| |
| |
| // Declare internals |
| |
| var internals = {}; |
| |
| |
| // Test shortcuts |
| |
| var expect = Lab.expect; |
| var before = Lab.before; |
| var after = Lab.after; |
| var describe = Lab.experiment; |
| var it = Lab.test; |
| |
| |
| describe('Cryptiles', function () { |
| |
| describe('#randomString', function () { |
| |
| it('should generate the right length string', function (done) { |
| |
| for (var i = 1; i <= 1000; ++i) { |
| expect(Cryptiles.randomString(i).length).to.equal(i); |
| } |
| |
| done(); |
| }); |
| |
| it('returns an error on invalid bits size', function (done) { |
| |
| expect(Cryptiles.randomString(99999999999999999999).message).to.equal('Failed generating random bits: Argument #1 must be number > 0'); |
| done(); |
| }); |
| }); |
| |
| describe('#randomBits', function () { |
| |
| it('returns an error on invalid input', function (done) { |
| |
| expect(Cryptiles.randomBits(0).message).to.equal('Invalid random bits count'); |
| done(); |
| }); |
| }); |
| |
| describe('#fixedTimeComparison', function () { |
| |
| var a = Cryptiles.randomString(50000); |
| var b = Cryptiles.randomString(150000); |
| |
| it('should take the same amount of time comparing different string sizes', function (done) { |
| |
| var now = Date.now(); |
| Cryptiles.fixedTimeComparison(b, a); |
| var t1 = Date.now() - now; |
| |
| now = Date.now(); |
| Cryptiles.fixedTimeComparison(b, b); |
| var t2 = Date.now() - now; |
| |
| expect(t2 - t1).to.be.within(-20, 20); |
| done(); |
| }); |
| |
| it('should return true for equal strings', function (done) { |
| |
| expect(Cryptiles.fixedTimeComparison(a, a)).to.equal(true); |
| done(); |
| }); |
| |
| it('should return false for different strings (size, a < b)', function (done) { |
| |
| expect(Cryptiles.fixedTimeComparison(a, a + 'x')).to.equal(false); |
| done(); |
| }); |
| |
| it('should return false for different strings (size, a > b)', function (done) { |
| |
| expect(Cryptiles.fixedTimeComparison(a + 'x', a)).to.equal(false); |
| done(); |
| }); |
| |
| it('should return false for different strings (size, a = b)', function (done) { |
| |
| expect(Cryptiles.fixedTimeComparison(a + 'x', a + 'y')).to.equal(false); |
| done(); |
| }); |
| |
| it('should return false when not a string', function (done) { |
| |
| expect(Cryptiles.fixedTimeComparison('x', null)).to.equal(false); |
| done(); |
| }); |
| }); |
| }); |
| |
| |