require File.dirname(__FILE__) + '/../spec_helper.rb'
require File.dirname(__FILE__) + '/../../rails/init.rb'

class Account < ActiveRecord::Base
  has_money :value, :total, :allow_nil => true
end

class Product < ActiveRecord::Base
  has_money :value, :allow_nil => false
  has_money :tax, :cents => "pennys", :with_currency => false

  validates_numericality_of :value_cents, :greater_than => 0
end

describe "Acts as Money" do


  it "should accept nil" do
    @account = Account.create(:value => nil)
    @account.should be_valid
    @account.value.should be_nil
  end

  it "should require money" do
    @product = Product.create(:value => nil)
    @product.should have(1).errors
    @product.value.should == Money.new(0)
  end

  it "should require money" do
    @product_fake = Product.create(:value => nil)
    @product_fake.value_cents.should eql(0)
  end

  it "should create" do
    @account = Account.create!(:value => 10, :total => "20 BRL")
    @account.should be_valid
  end

  it "should write to the db" do
    lambda do
      @account = Account.create!(:value => 10, :total => "20 BRL")
    end.should change(Account, :count).by(1)
    Account.last.total.format.should eql("R$ 20,00")
  end



  describe "Account" do

    before(:each) do
      @account = Account.create!(:value => 10, :total => "20 BRL")
    end

    it "should return an instance of Money" do
      @account.value.should be_instance_of(Money)
    end

    it "should format out nicely" do
      @account.value.format.should eql("$10.00")
    end

    it "should include nicely" do
      @account.value.to_s.should eql("10.00")
      @account.total.to_s.should eql("20.00")
    end

    it "should map cents" do
      @account.value_cents.to_s.should eql("1000")
    end

    it "should map currency" do
      @account.value_currency.should eql("USD")
      @account.total_currency.should eql("BRL")
    end

  end

  describe "Product" do

    before(:each) do
      @product = Product.create(:value => 10, :tax => 2)
    end

    it "should map attributes" do
      @product.pennys.should eql(200)
    end

    it "should map currency on tax" do
      @product.should_not respond_to(:tax_currency)
    end

  end

end