Remove timezone when comparing DateTimes

Closes GH-1

lib/holidays.rb

@@ -83,8 +83,13 @@ module Holidays
   #   => [{:name => 'Canada Day', :regions => [:ca]...}
   #       {:name => 'Independence Day'', :regions => [:us], ...}]
   def self.between(start_date, end_date, *options)
+    # remove the timezone
+    start_date = start_date.new_offset(0) if start_date.respond_to?(:new_offset)
+    end_date = end_date.new_offset(0) if end_date.respond_to?(:new_offset)
+    
     start_date = start_date.to_date if start_date.respond_to?(:to_date)
     end_date = end_date.to_date if end_date.respond_to?(:to_date)
+    
     regions, observed, informal = parse_options(options)
     holidays = []
 

test/test_date.rb

@@ -10,6 +10,12 @@ class DateTests < Test::Unit::TestCase
     assert @date.respond_to?('holiday?')
   end
 
+  def test_extending_datetime_class
+    dt = DateTime.civil(2008,1,1)
+    assert dt.respond_to?('holidays')
+    assert dt.respond_to?('holiday?')
+  end
+
   def test_calculating_mdays
     # US Memorial day
     assert_equal 29, Date.calculate_mday(2006, 5, :last, 1)
@@ -95,7 +101,22 @@ class DateTests < Test::Unit::TestCase
     end
   end
 
-  def test_holiday?
+  def test_date_holiday?
     assert Date.civil(2008,1,1).holiday?('ca')
+    assert Date.today.holiday?('test')
+  end
+
+  def test_datetime_holiday?
+    assert DateTime.now.to_date.holiday?('test')
+    assert DateTime.now.holiday?('test')
+  end
+
+  # ensure that dates are compared in the same timezone
+  def test_datetime_offset_holiday?
+    dt = DateTime.now.new_offset(Rational(23,24))
+    assert dt.holiday?('test'), dt.inspect
+
+    dt = DateTime.now.new_offset(Rational(-23,24))
+    assert dt.holiday?('test'), dt.inspect
   end
 end

test/test_helper.rb

@@ -1,6 +1,4 @@
-$LOAD_PATH.unshift(File.expand_path(File.dirname(__FILE__), '../'))
-$LOAD_PATH.unshift(File.expand_path(File.dirname(__FILE__), '../lib/'))
-$LOAD_PATH.unshift(File.expand_path(File.dirname(__FILE__), '../../lib/'))
+$:.unshift(File.expand_path(File.dirname(__FILE__) + '../../lib/'))
 
 $KCODE = 'u'
 
@@ -9,3 +7,16 @@ require 'test/unit'
 require 'date'
 require 'holidays'
 require 'holidays/ca'
+
+module Holidays
+  # Test region used for generating a holiday on Date.today
+  module Test # :nodoc:
+    DEFINED_REGIONS = [:test]
+
+    HOLIDAYS_BY_MONTH = {
+      Date.today.mon => [{:mday => Date.today.mday, :name => "Test Holiday", :regions => [:test]}]
+    }
+  end
+end
+
+Holidays.merge_defs(Holidays::Test::DEFINED_REGIONS, Holidays::Test::HOLIDAYS_BY_MONTH)