RSPEC WITH HAS_MANY AND BELONGS_TO ASSOCIATION TESTCASES FOR RUBY ON RAILS

Usermodel
has_many :addresses, :dependent => :destroy
Addressmodel
belong_to :user
describe User do
   before(:each) do
    @user_new = {:name => "chinna",:email => "chinna@yopmail.com",:password => "chinnaram",:password_confirmation => "chinnaram"}
   end
it "should create a new user details" do
     @user_attr = User.create!(@user_new)
end

#validation for rspec has_many
it "Should contain many Addresses" do
    @user = User.new(@user_attr)
    @user.addresses << Address.new(:user_id => @user.id)
    @user.addresses << Address.new(:user_id => @user.id)
    @user.should have(2).addresss
end
#dependent destroy for invitation
it "should destroyed user addresss details" do
   @user = User.new(@user_att)
   user = User.new(:user_id => @user.id,:location =>"bangalore")
   @user.destroy
   Address.find_by_id(address.id).should be_nil
  end
end

###for address model belong_to validation for rspec

describe Address do
   before(:each) do
       @user_new = {:name => "chinna",:email => "chinna@yopmail.com",:password => "chinnaram",:password_confirmation => "chinnaram"}
    @user = User.create!(@user_new)
    @addr_new = {:location=> "bangalore",:state => "karnataka",:user_id => @user.id}
   end

it "should belongs to user" do
    @address = Address.new
    @address.user.should be_nil
    @address.user = @user
    @address.user.should eql(@user)
 end

end
############some of important notes.....
Cucumber::Rails::Database.javascript_strategy = :transaction ###important  change to truncation to transaction
begin
  DatabaseCleaner.strategy = :transaction  ###important  change to truncation to transaction
rescue NameError
  raise "You need to add database_cleaner to your Gemfile (in the :test group) if you wish to use it."
end

RUBY BASICS