From 8e847dcde8fdbd8dfab16f917babf9b300399e22 Mon Sep 17 00:00:00 2001 From: David Celis Date: Tue, 13 Oct 2015 00:42:39 -0700 Subject: Expand support for ActiveSupport::TimeWithZone#utc? Currently, ActiveSupport::TimeWithZone#utc? simply runs a check to see if the linked ActiveSupport::TimeZone's name is "UTC". This will only return true for ActiveSupport::TimeZone["UTC"], but not for time zones such as "Etc/UTC", "Etc/Universal", or other time zones that are aliases for UTC. Interestingly enough, ActiveSupport::TimeWithZone#utc? is also aliased as #gmt? but will return false for the "GMT" timezone (along with other TZInfo aliases for GMT). Instead of running a simple check on the TimeZone name, we can rely on the underlying TZInfo::TimezonePeriod and TZInfo::TimezoneOffset which keep a record of of the offset's abbreviated name. The possibilities here for UTC time zones are `:UTC`, `:UCT`, and `:GMT`. Signed-off-by: David --- activesupport/lib/active_support/time_with_zone.rb | 2 +- activesupport/test/core_ext/time_with_zone_test.rb | 15 +++++++++++++++ 2 files changed, 16 insertions(+), 1 deletion(-) diff --git a/activesupport/lib/active_support/time_with_zone.rb b/activesupport/lib/active_support/time_with_zone.rb index 3592dcba39..910c1f91a5 100644 --- a/activesupport/lib/active_support/time_with_zone.rb +++ b/activesupport/lib/active_support/time_with_zone.rb @@ -102,7 +102,7 @@ module ActiveSupport # Time.zone = 'Eastern Time (US & Canada)' # => 'Eastern Time (US & Canada)' # Time.zone.now.utc? # => false def utc? - time_zone.name == 'UTC' + period.offset.abbreviation == :UTC || period.offset.abbreviation == :UCT end alias_method :gmt?, :utc? diff --git a/activesupport/test/core_ext/time_with_zone_test.rb b/activesupport/test/core_ext/time_with_zone_test.rb index c40f0bacbf..7acada011d 100644 --- a/activesupport/test/core_ext/time_with_zone_test.rb +++ b/activesupport/test/core_ext/time_with_zone_test.rb @@ -51,7 +51,22 @@ class TimeWithZoneTest < ActiveSupport::TestCase def test_utc? assert_equal false, @twz.utc? + assert_equal true, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['UTC']).utc? + assert_equal true, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Etc/UTC']).utc? + assert_equal true, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Universal']).utc? + assert_equal true, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['UCT']).utc? + assert_equal true, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Etc/UCT']).utc? + assert_equal true, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Etc/Universal']).utc? + + assert_equal false, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Africa/Abidjan']).utc? + assert_equal false, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Africa/Banjul']).utc? + assert_equal false, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Africa/Freetown']).utc? + assert_equal false, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['GMT']).utc? + assert_equal false, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['GMT0']).utc? + assert_equal false, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Greenwich']).utc? + assert_equal false, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Iceland']).utc? + assert_equal false, ActiveSupport::TimeWithZone.new(Time.utc(2000), ActiveSupport::TimeZone['Africa/Monrovia']).utc? end def test_formatted_offset -- cgit v1.2.3