require 'date' describe "Date.civil_to_jd" do ruby_version_is "" ... "1.9" do it "converts a Civil Date to a Julian Day Number" do Date.civil_to_jd(-4713, 11, 24).should == 0 Date.civil_to_jd(2011, 6, 8).should == 2455721 end it "converts a Civil Date to a Julian Day Number using Julian calendar" do Date.civil_to_jd(2011, 6, 8, Date::JULIAN).should == 2455734 end end end