From bfbf03ecee063adc9999c0dec50f8177594fb28f Mon Sep 17 00:00:00 2001
From: gbuesing <gbuesing@gmail.com>
Date: Thu, 8 May 2008 23:40:25 -0500
Subject: [PATCH] ActionView::InstanceTag#default_time_from_options with hash
 args uses Time.current as default; respects hash settings when time falls in
 system local spring DST gap

---
 actionpack/CHANGELOG                          |  2 ++
 .../lib/action_view/helpers/date_helper.rb    |  7 +++---
 actionpack/test/template/date_helper_test.rb  | 23 +++++++++++++++++++
 3 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/actionpack/CHANGELOG b/actionpack/CHANGELOG
index 438fa24c75311..baba4ae5ed65d 100644
--- a/actionpack/CHANGELOG
+++ b/actionpack/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* InstanceTag#default_time_from_options with hash args uses Time.current as default; respects hash settings when time falls in system local spring DST gap [Geoff Buesing]
+
 * select_date defaults to Time.zone.today when config.time_zone is set [Geoff Buesing]
 
 * Fixed that TextHelper#text_field would corrypt when raw HTML was used as the value (mchenryc, Kevin Glowacz) [#80]
diff --git a/actionpack/lib/action_view/helpers/date_helper.rb b/actionpack/lib/action_view/helpers/date_helper.rb
index 542ef3ef65464..8a9c8044aef41 100755
--- a/actionpack/lib/action_view/helpers/date_helper.rb
+++ b/actionpack/lib/action_view/helpers/date_helper.rb
@@ -683,12 +683,13 @@ def default_time_from_options(default)
               default[:min] ||= default[:minute]
               default[:sec] ||= default[:second]
 
+              time = Time.current
+                
               [:year, :month, :day, :hour, :min, :sec].each do |key|
-                default[key] ||= Time.now.send(key)
+                default[key] ||= time.send(key)
               end
 
-              Time.mktime(default[:year], default[:month], default[:day],
-                          default[:hour], default[:min],   default[:sec])
+              Time.utc(default[:year], default[:month], default[:day], default[:hour], default[:min], default[:sec])
             end
         end
     end
diff --git a/actionpack/test/template/date_helper_test.rb b/actionpack/test/template/date_helper_test.rb
index 905cf0ba3102d..ae83c7bf4730f 100755
--- a/actionpack/test/template/date_helper_test.rb
+++ b/actionpack/test/template/date_helper_test.rb
@@ -1708,4 +1708,27 @@ def test_datetime_select_with_html_options
     assert_dom_equal expected, datetime_select("post", "updated_at", {}, :class => 'selector')
   end
 
+  uses_mocha 'TestInstanceTagDefaultTimeFromOptions' do
+    def test_instance_tag_default_time_from_options_uses_time_current_as_default_when_hash_passed_as_arg
+      dummy_instance_tag = ActionView::Helpers::InstanceTag.new(1,2,3)
+      Time.expects(:current).returns Time.now
+      dummy_instance_tag.send!(:default_time_from_options, :hour => 2)
+    end
+
+    def test_instance_tag_default_time_from_options_respects_hash_arg_settings_when_time_falls_in_system_local_dst_spring_gap
+      with_env_tz('US/Central') do
+        dummy_instance_tag = ActionView::Helpers::InstanceTag.new(1,2,3)
+        Time.stubs(:now).returns Time.local(2006, 4, 2, 1)
+        assert_equal 2, dummy_instance_tag.send!(:default_time_from_options, :hour => 2).hour
+      end
+    end
+  end
+  
+  protected
+    def with_env_tz(new_tz = 'US/Eastern')
+      old_tz, ENV['TZ'] = ENV['TZ'], new_tz
+      yield
+    ensure
+      old_tz ? ENV['TZ'] = old_tz : ENV.delete('TZ')
+    end  
 end