require File.expand_path('../../../spec_helper', __FILE__) describe "Time#yday" do it "returns an integer representing the day of the year, 1..366" do with_timezone("UTC") do Time.at(9999999).yday.should == 116 end end it 'returns the correct value for each day of each month' do mdays = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31] yday = 1 mdays.each_with_index do |days, month| days.times do |day| Time.new(2014, month+1, day+1).yday.should == yday yday += 1 end end end end