BigDecimal Float comparison

cash_transaction_spec.rb

require 'spec_helper'

describe CashTransaction do
  context "when transaction is not a refund" do
    subject { CashTransaction.new refund: false }
    context "when an amount is positive" do
      before(:each) do
        subject.amount = 19.90
        subject.save
      end
      its(:amount) { should eq 19.90 }
    end
    context "whent the amount is negative" do
      before(:each) do
        subject.amount = -21.04
        subject.save
      end
      its(:amount) { should eq 21.04 }
    end
  end

  context "when transaction is a refund" do
    subject { CashTransaction.new refund: true }
    context "when an amount is positive" do
      before(:each) do
        subject.amount = 100.00
        subject.save
      end
      its(:amount) { should eq 100.00 }
    end
    context "whent the amount is negative" do
      before(:each) do
        subject.amount = -100.00
        subject.save
      end
      its(:amount) { should eq 100.00 }
    end
  end
end