Hash.from_xml: datetime xml types overflow to Ruby DateTime class when out of...

Hash.from_xml: datetime xml types overflow to Ruby DateTime class when out of range of Time. Adding tests for utc offsets

activesupport/CHANGELOG

+* Hash.from_xml: datetime xml types overflow to Ruby DateTime class when out of range of Time. Adding tests for utc offsets [Geoff Buesing]
+
 * TimeWithZone #+ and #- : ensure overflow to DateTime with Numeric arg [Geoff Buesing]
 
 * Time#to_json: don't convert to utc before encoding. References #175 [Geoff Buesing]

activesupport/lib/active_support/core_ext/hash/conversions.rb

@@ -70,7 +70,7 @@ module Conversions
           XML_PARSING = {
             "symbol"       => Proc.new  { |symbol|  symbol.to_sym },
             "date"         => Proc.new  { |date|    ::Date.parse(date) },
-            "datetime"     => Proc.new  { |time|    ::Time.parse(time).utc },
+            "datetime"     => Proc.new  { |time|    ::Time.parse(time).utc rescue ::DateTime.parse(time).utc },
             "integer"      => Proc.new  { |integer| integer.to_i },
             "float"        => Proc.new  { |float|   float.to_f },
             "decimal"      => Proc.new  { |number|  BigDecimal(number) },

activesupport/test/core_ext/hash_ext_test.rb

@@ -733,6 +733,44 @@ def test_roundtrip_to_xml_from_xml
 
     assert_equal hash, Hash.from_xml(hash.to_xml(@xml_options))['person']
   end
+  
+  def test_datetime_xml_type_with_utc_time
+    alert_xml = <<-XML
+      <alert>
+        <alert_at type="datetime">2008-02-10T15:30:45Z</alert_at>
+      </alert>
+    XML
+    alert_at = Hash.from_xml(alert_xml)['alert']['alert_at']
+    assert alert_at.utc?
+    assert_equal Time.utc(2008, 2, 10, 15, 30, 45), alert_at
+  end
+  
+  def test_datetime_xml_type_with_non_utc_time
+    alert_xml = <<-XML
+      <alert>
+        <alert_at type="datetime">2008-02-10T10:30:45-05:00</alert_at>
+      </alert>
+    XML
+    alert_at = Hash.from_xml(alert_xml)['alert']['alert_at']
+    assert alert_at.utc?
+    assert_equal Time.utc(2008, 2, 10, 15, 30, 45), alert_at
+  end
+  
+  def test_datetime_xml_type_with_far_future_date
+    alert_xml = <<-XML
+      <alert>
+        <alert_at type="datetime">2050-02-10T15:30:45Z</alert_at>
+      </alert>
+    XML
+    alert_at = Hash.from_xml(alert_xml)['alert']['alert_at']
+    assert alert_at.utc?
+    assert_equal 2050,  alert_at.year
+    assert_equal 2,     alert_at.month
+    assert_equal 10,    alert_at.day
+    assert_equal 15,    alert_at.hour
+    assert_equal 30,    alert_at.min
+    assert_equal 45,    alert_at.sec
+  end
 end
 
 class QueryTest < Test::Unit::TestCase