NoMethodError undefined method `save' for nil:NilClass - ruby-on-rails

Question

What do I need to do to fix this? I am new to ruby on rails.
Error when rspec is ran
1) remember token should have a nonblank remember token
Failure/Error: before { #user.save }
NoMethodError:
undefined method `save' for nil:NilClass
# ./spec/models/user_spec.rb:125:in `block (2 levels) in <top (required)>'
user_spec.rb
require 'spec_helper'
describe User do
before do
#user = User.new(name: "Example User", email: "user#example.com",
password: "foobar", password_confirmation: "foobar")
end
.
.
.
it { should respond_to(:remember_token) }
.
.
.
describe "with a password that's too short" do
before { #user.password = #user.password_confirmation = "a" * 5 }
it { should be_invalid }
end
describe "return value of authenticate method" do
before { #user.save }
let(:found_user) { User.find_by_email(#user.email) }
describe "with valid password" do
it { should == found_user.authenticate(#user.password) }
end
describe "with invalid password" do
let(:user_for_invalid_password) { found_user.authenticate("invalid") }
it { should_not == user_for_invalid_password }
specify { user_for_invalid_password.should be_false }
end
end
end
describe "remember token" do
before { #user.save }
it "should have a nonblank remember token" do
subject.remember_token.should_not be_blank
end
end
user.rb
class User < ActiveRecord::Base
attr_accessible :name, :email, :password, :password_confirmation
has_secure_password
before_save { |user| user.email = email.downcase }
before_save :create_remember_token
validates :name, presence: true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+#[a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true, format: { with: VALID_EMAIL_REGEX },
uniqueness: { case_sensitive: false }
validates :password, length: { minimum: 6 }
validates :password_confirmation, presence: true
private
def create_remember_token
self.remember_token = SecureRandom.urlsafe_base64
end
end

Answer 1

It looks like this block of code
describe "remember token" do
is outside the block
describe User do
...
end
If you move it inside the block, then it will have the before action fire that creates the #user object (which you then save in your own before block)

Answer 2

the #user variable will be not found, so
you should move describe "remember token" inside ->
describe User do
//current definitions
describe "remember token" do
before { #user.save }
it "should have a nonblank remember token" do
subject.remember_token.should_not be_blank
end
end
end