public void ChangePassword()
{
var manager = this.Locator.GetInstance<IUserManager>();
var user = this.CreateUser();
// ReSharper disable ConvertToConstant.Local
var newPassword = "newPassword";
// ReSharper restore ConvertToConstant.Local
var login = user.UserPasswordCredential.Login;
manager.ChangePassword(user, newPassword);
this.Session.Flush();
this.Session.Evict(user);
user = manager.FindByPasswordCredential(login, newPassword);
Assert.That(user, Is.Not.Null);
}