From: zverok.offline@... Date: 2019-12-20T17:55:17+00:00 Subject: [ruby-core:96379] [Ruby master Bug#16440] Date range inclusion behaviors are inconsistent Issue #16440 has been updated by zverok (Victor Shepelev). `Range#include?` works as `#to_a.include?`. E.g. this: ```ruby (may1..may31).include? noon_of_may3 # => false ``` Is equivalent to this: ```ruby dates = (may1..may31).to_a # => each Date between May 1 and 31 dates.include? noon_of_may3 # => false ``` What works as you expect (compare value with range begin and end) is `Range#cover?`: ```ruby (may1..may31).cover? noon_of_may3 # => true ``` (To make things a bit more complicated, there is a special reimplementation for numbers, so `(1...2).include?(1.5)` is `true`.) ---------------------------------------- Bug #16440: Date range inclusion behaviors are inconsistent https://bugs.ruby-lang.org/issues/16440#change-83300 * Author: st0012 (Stan Lo) * Status: Open * Priority: Normal * Assignee: * Target version: * ruby -v: ruby 2.6.5p114 (2019-10-01 revision 67812) [x86_64-darwin19] * Backport: 2.5: UNKNOWN, 2.6: UNKNOWN ---------------------------------------- It's weird that a Date range can include Time and DateTime objects that were converted from a Date object. But it can't include a newly generated DateTime object. For example: ``` may1 = Date.parse("2019-05-01") may3 = Date.parse("2019-05-03") noon_of_may3 = DateTime.parse("2019-05-03 12:00") may31 = Date.parse("2019-05-31") (may1..may31).include? may3 # => True (may1..may31).include? may3.to_time # => True (may1..may31).include? may3.to_datetime # => True (may1..may31).include? noon_of_may3 # => False ``` Shouldn't the last case return `true` as well? Related Rails issue: https://github.com/rails/rails/issues/36175 -- https://bugs.ruby-lang.org/ Unsubscribe: