Use lolex for faking date in tests (#491)

Sinon.JS provides a project called lolex to handle faking dates. This change replaces the fakeDate utility with the equivalent Sinon.JS code.

Author: MitMaro

package.json

@@ -4,7 +4,7 @@
  "description": "JSON Web Token implementation (symmetric and asymmetric)",
  "main": "index.js",
  "scripts": {
- "test": "nyc --reporter=html --reporter=text mocha --require test/util/fakeDate && nsp check && cost-of-modules"
+ "test": "nyc --reporter=html --reporter=text mocha && nsp check && cost-of-modules"
  },
  "repository": {
  "type": "git",
@@ -37,7 +37,7 @@
  "mocha": "^2.1.0",
  "nsp": "^2.6.2",
  "nyc": "^11.8.0",
- "sinon": "^1.15.4"
+ "sinon": "^6.0.0"
  },
  "engines": {
  "npm": ">=1.4.28",

test/jwt.asymmetric_signing.tests.js

@@ -5,6 +5,7 @@ var path = require('path');
 var expect = require('chai').expect;
 var assert = require('chai').assert;
 var ms = require('ms');
+var sinon = require('sinon');
 
 function loadKey(filename) {
  return fs.readFileSync(path.join(__dirname, filename));
@@ -140,14 +141,14 @@ describe('Asymmetric Algorithms', function(){
 
 
  it('should valid when date are equals', function (done) {
- Date.fix(1451908031);
+ var fakeClock = sinon.useFakeTimers({now: 1451908031});
 
  token = jwt.sign({ foo: 'bar' }, priv, { algorithm: algorithm, notBefore: 0 });
 
  jwt.verify(token, pub, function (err, decoded) {
+ fakeClock.uninstall();
  assert.isNull(err);
  assert.isNotNull(decoded);
- Date.unfix();
  done();
  });
  });