Substantially increase unit tests that log in User

[Brett Kotch]

If you are logging in User, even if you are using the native version of bcrypt you may have noticed a significant decrease in performance. 

This blog post ... http://collectiveidea.com/blog/archives/2012/11/12/tests-oddly-slow-might-be-bcrypt/ introduced the idea of changing the security strength for tests. 

After digging around in the bcrypt repository, I found the following: 

User.hashPassword = function(plain) {
	this.validatePassword(plain);
	var salt = bcrypt.genSaltSync(this.settings.saltWorkFactor || SALT_WORK_FACTOR);
	return bcrypt.hashSync(plain, salt);
	};

Which led me to the idea of just setting the saltWorkFactor on the User object as such: 

user.saltWorkFactor = 4;

After setting the value to 4 (default is 10), my tests ran over 8 times faster! 

[a...@peermatch.com]

You could also configure that option in model-config.test.json

{
  "MyUser": {
    "dataSource": "db",
    "public": true,
    "options": {
      "saltWorkFactor": 2
    }
  }
}