#!/usr/bin/env ruby
# encoding: utf-8

require "spec_helper"
require 'rubygems'
require 'reckon'

describe Reckon::MoneyColumn do
  describe "initialize" do
    it "should convert strings into Money" do
      Reckon::MoneyColumn.new( ["1.00", "-2.00"] ).should == [ 
        Reckon::Money.new( 1.00 ), Reckon::Money.new( -2.00 ) ]
    end
    it "should convert empty string into nil" do
      Reckon::MoneyColumn.new( ["1.00", ""] ).should == [ 
        Reckon::Money.new( 1.00 ), nil ]
      Reckon::MoneyColumn.new( ["", "-2.00"] ).should == [ 
        nil, Reckon::Money.new( -2.00 ) ]
    end
  end

  describe "positive?" do
    it "should return false if one entry negative" do
      Reckon::MoneyColumn.new( ["1.00", "-2.00"] ).positive?.should == false
    end

    it "should return true if all elements positive or nil" do
      Reckon::MoneyColumn.new( ["1.00", "2.00"] ).positive?.should == true
      Reckon::MoneyColumn.new( ["1.00", ""] ).positive?.should == true
    end
  end

  describe "merge" do
    it "should merge two columns" do
      Reckon::MoneyColumn.new( ["1.00", ""] ).merge!( 
        Reckon::MoneyColumn.new( ["", "-2.00"] ) ).should == [ 
          Reckon::Money.new( 1.00 ), Reckon::Money.new( -2.00 ) ]
      Reckon::MoneyColumn.new( ["1.00", "0"] ).merge!( 
        Reckon::MoneyColumn.new( ["0", "-2.00"] ) ).should == [ 
          Reckon::Money.new( 1.00 ), Reckon::Money.new( -2.00 ) ]
      Reckon::MoneyColumn.new( ["AB1.00C", ""] ).merge!( 
        Reckon::MoneyColumn.new( ["", "AB-2.00C"] ) ).should == [ 
          Reckon::Money.new( 1.00 ), Reckon::Money.new( -2.00 ) ]
      Reckon::MoneyColumn.new( ["AB1.00C", "AB0C"] ).merge!( 
        Reckon::MoneyColumn.new( ["AB0C", "AB-2.00C"] ) ).should == [ 
          Reckon::Money.new( 1.00 ), Reckon::Money.new( -2.00 ) ]
     end

    it "should return nil if columns cannot be merged" do
      Reckon::MoneyColumn.new( ["1.00", ""] ).merge!( 
        Reckon::MoneyColumn.new( ["1.00", "-2.00"] ) ).should == nil

      Reckon::MoneyColumn.new( ["From1", "Names"] ).merge!( 
          Reckon::MoneyColumn.new( ["Acc", "NL28 INGB 1200 3244 16,21817"] ) ).should == nil
    end

    it "should invert first column if both positive" do
      Reckon::MoneyColumn.new( ["1.00", ""] ).merge!( 
        Reckon::MoneyColumn.new( ["", "2.00"] ) ).should == [ 
          Reckon::Money.new( -1.00 ), Reckon::Money.new( 2.00 ) ]
    end
  end
end