require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')

describe Parsing::PositiveIntegerParser do
  parser = Parsing::PositiveIntegerParser.new

  ["1","50","05","502530"].each do |str|
    res = parser.parse(str)
    i = str.to_i
    
    it "should parse '#{str}'" do
      res.should_not be nil
    end

    it 'should return node that is convertible to integer using #to_i method' do
      res.to_i.should eq(i)
    end
    
    it 'should return node that is convertible to integer using #to_num method' do
      res.to_num.should eq(i)
    end
  end

  ["0"].each do |str|
    it "should not parse '#{str}'" do
      parser.should_not parse(str)
    end
  end
end