Here is a bit of code from M Hartl's Ruby on Rails Tutorial. Can anyone explain why an instance variable (@user) is necessary and why not use a local variable. Also, since instance variables are supposed to be the variables in the instance of a class, which class is @user instantiated from?
require 'spec_helper'describe User do before { @user = User.new(name: "Example User", email: "user@example.com") } subject { @user } it { should respond_to(:name) } it { should respond_to(:email) }end
