From: tadayoshi funaba Date: 2011-03-02T21:26:34+09:00 Subject: [ruby-core:35416] [Ruby 1.9 - Feature #4391] date/delta tests Issue #4391 has been updated by tadayoshi funaba. i'm planning to remove this undocumented feature. i once tried to remove this experimental feature. because, i felt i could not assign my time enough. in fact, i removed this. however, it reverted. because, we were already in period of feature freeze at that time. i was going to improve the delta. however, now i'd like to improve date. thanks. ---------------------------------------- Feature #4391: date/delta tests http://redmine.ruby-lang.org/issues/4391 Author: Sebastian Krause Status: Assigned Priority: Normal Assignee: tadayoshi funaba Category: lib Target version: 1.9.x Attached are a few tests for the Date::Delta class. I hope they are of some use. And some points which might be considered bugs. (Everything for 1.9.2 patchlevel 174, probably applies to older versions too) i) Interplay with the Time class So the following doesn't look right: irb(main):005:0> t1 = Time.new(2011) => 2011-01-01 00:00:00 +0100 irb(main):006:0> t2 = Date::Delta.days(1) => # irb(main):007:0> t1 + t2 => 2011-01-01 00:00:01 +0100 ii) Difference of Dates is number This leads to the following strange behavior: irb(main):016:0> t1 = Date.new(2011,2) => # irb(main):017:0> t1 - t1 + Date::Delta.months(1) => ((0/1)+(1/1)*i) Wouldn't it be better, if date arithmetic stayed in the classes Date and Date::Delta when date/delta is loaded? iii) multiplication with scalars I don't know what the coercion principles exactly are. So this might be okay. irb(main):003:0> 2 * Date::Delta.days(2) => ((4/1)+(0/1)*i) irb(main):004:0> Date::Delta.days(2) * 2 => # Can I add some documentation? Is there a standard way to do it or should I just go ahead and copy the style from other parts. -- http://redmine.ruby-lang.org