#--
# Copyright (c) 2005-2013 Philip Ross
# 
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#++

require File.join(File.expand_path(File.dirname(__FILE__)), 'test_utils')

include TZInfo

class TCTimezoneMelbourne < Test::Unit::TestCase
  def test_2004
    #Australia/Melbourne  Sat Mar 27 15:59:59 2004 UTC = Sun Mar 28 02:59:59 2004 EST isdst=1 gmtoff=39600
    #Australia/Melbourne  Sat Mar 27 16:00:00 2004 UTC = Sun Mar 28 02:00:00 2004 EST isdst=0 gmtoff=36000
    #Australia/Melbourne  Sat Oct 30 15:59:59 2004 UTC = Sun Oct 31 01:59:59 2004 EST isdst=0 gmtoff=36000
    #Australia/Melbourne  Sat Oct 30 16:00:00 2004 UTC = Sun Oct 31 03:00:00 2004 EST isdst=1 gmtoff=39600
    
    tz = Timezone.get('Australia/Melbourne')
    assert_equal(DateTime.new(2004,3,28,2,59,59), tz.utc_to_local(DateTime.new(2004,3,27,15,59,59)))
    assert_equal(DateTime.new(2004,3,28,2,0,0), tz.utc_to_local(DateTime.new(2004,3,27,16,0,0)))    
    assert_equal(DateTime.new(2004,10,31,1,59,59), tz.utc_to_local(DateTime.new(2004,10,30,15,59,59)))
    assert_equal(DateTime.new(2004,10,31,3,0,0), tz.utc_to_local(DateTime.new(2004,10,30,16,0,0)))
    
    assert_equal(DateTime.new(2004,3,27,15,59,59), tz.local_to_utc(DateTime.new(2004,3,28,2,59,59), true))
    assert_equal(DateTime.new(2004,3,27,16,59,59), tz.local_to_utc(DateTime.new(2004,3,28,2,59,59), false))
    assert_equal(DateTime.new(2004,3,27,15,0,0), tz.local_to_utc(DateTime.new(2004,3,28,2,0,0), true))
    assert_equal(DateTime.new(2004,3,27,16,0,0), tz.local_to_utc(DateTime.new(2004,3,28,2,0,0), false))   
    assert_equal(DateTime.new(2004,10,30,15,59,59), tz.local_to_utc(DateTime.new(2004,10,31,1,59,59)))
    assert_equal(DateTime.new(2004,10,30,16,0,0), tz.local_to_utc(DateTime.new(2004,10,31,3,0,0)))
    
    assert_raises(PeriodNotFound) { tz.local_to_utc(DateTime.new(2004,10,31,2,0,0)) }
    assert_raises(AmbiguousTime) { tz.local_to_utc(DateTime.new(2004,3,28,2,0,0)) }
    
    assert_equal(:EST, tz.period_for_utc(DateTime.new(2004,3,27,15,59,59)).zone_identifier)
    assert_equal(:EST, tz.period_for_utc(DateTime.new(2004,3,27,16,0,0)).zone_identifier)
    assert_equal(:EST, tz.period_for_utc(DateTime.new(2004,10,30,15,59,59)).zone_identifier)
    assert_equal(:EST, tz.period_for_utc(DateTime.new(2004,10,30,16,0,0)).zone_identifier)
    
    assert_equal(:EST, tz.period_for_local(DateTime.new(2004,3,28,2,59,59), true).zone_identifier)
    assert_equal(:EST, tz.period_for_local(DateTime.new(2004,3,28,2,59,59), false).zone_identifier)
    assert_equal(:EST, tz.period_for_local(DateTime.new(2004,3,28,2,0,0), true).zone_identifier)
    assert_equal(:EST, tz.period_for_local(DateTime.new(2004,3,28,2,0,0), false).zone_identifier)
    assert_equal(:EST, tz.period_for_local(DateTime.new(2004,10,31,1,59,59)).zone_identifier)
    assert_equal(:EST, tz.period_for_local(DateTime.new(2004,10,31,3,0,0)).zone_identifier)
    
    assert_equal(39600, tz.period_for_utc(DateTime.new(2004,3,27,15,59,59)).utc_total_offset)
    assert_equal(36000, tz.period_for_utc(DateTime.new(2004,3,27,16,0,0)).utc_total_offset)
    assert_equal(36000, tz.period_for_utc(DateTime.new(2004,10,30,15,59,59)).utc_total_offset)
    assert_equal(39600, tz.period_for_utc(DateTime.new(2004,10,30,16,0,0)).utc_total_offset)
    
    assert_equal(39600, tz.period_for_local(DateTime.new(2004,3,28,2,59,59), true).utc_total_offset)
    assert_equal(36000, tz.period_for_local(DateTime.new(2004,3,28,2,59,59), false).utc_total_offset)
    assert_equal(39600, tz.period_for_local(DateTime.new(2004,3,28,2,0,0), true).utc_total_offset)
    assert_equal(36000, tz.period_for_local(DateTime.new(2004,3,28,2,0,0), false).utc_total_offset)
    assert_equal(36000, tz.period_for_local(DateTime.new(2004,10,31,1,59,59)).utc_total_offset)
    assert_equal(39600, tz.period_for_local(DateTime.new(2004,10,31,3,0,0)).utc_total_offset)
  end  

  def test_1942
    # This test cannot be run when using ZoneinfoDataSource on platforms
    # that don't support Times before the epoch (i.e. Ruby < 1.9 on Windows) 
    # because it relates to the year 1942.
    
    if !DataSource.get.kind_of?(ZoneinfoDataSource) || RubyCoreSupport.time_supports_negative
      #Australia/Melbourne  Sat Mar 28 14:59:59 1942 UTC = Sun Mar 29 01:59:59 1942 EST isdst=1 gmtoff=39600
      #Australia/Melbourne  Sat Mar 28 15:00:00 1942 UTC = Sun Mar 29 01:00:00 1942 EST isdst=0 gmtoff=36000
      #Australia/Melbourne  Sat Sep 26 15:59:59 1942 UTC = Sun Sep 27 01:59:59 1942 EST isdst=0 gmtoff=36000
      #Australia/Melbourne  Sat Sep 26 16:00:00 1942 UTC = Sun Sep 27 03:00:00 1942 EST isdst=1 gmtoff=39600
      
      tz = Timezone.get('Australia/Melbourne')
      assert_equal(DateTime.new(1942,3,29,1,59,59), tz.utc_to_local(DateTime.new(1942,3,28,14,59,59)))
      assert_equal(DateTime.new(1942,3,29,1,0,0), tz.utc_to_local(DateTime.new(1942,3,28,15,0,0)))    
      assert_equal(DateTime.new(1942,9,27,1,59,59), tz.utc_to_local(DateTime.new(1942,9,26,15,59,59)))
      assert_equal(DateTime.new(1942,9,27,3,0,0), tz.utc_to_local(DateTime.new(1942,9,26,16,0,0)))
      
      assert_equal(DateTime.new(1942,3,28,14,59,59), tz.local_to_utc(DateTime.new(1942,3,29,1,59,59), true))
      assert_equal(DateTime.new(1942,3,28,15,59,59), tz.local_to_utc(DateTime.new(1942,3,29,1,59,59), false))
      assert_equal(DateTime.new(1942,3,28,14,0,0), tz.local_to_utc(DateTime.new(1942,3,29,1,0,0), true))
      assert_equal(DateTime.new(1942,3,28,15,0,0), tz.local_to_utc(DateTime.new(1942,3,29,1,0,0), false))   
      assert_equal(DateTime.new(1942,9,26,15,59,59), tz.local_to_utc(DateTime.new(1942,9,27,1,59,59)))
      assert_equal(DateTime.new(1942,9,26,16,0,0), tz.local_to_utc(DateTime.new(1942,9,27,3,0,0)))
      
      assert_raises(PeriodNotFound) { tz.local_to_utc(DateTime.new(1942,9,27,2,0,0)) }
      assert_raises(AmbiguousTime) { tz.local_to_utc(DateTime.new(1942,3,29,1,0,0)) }
      
      assert_equal(:EST, tz.period_for_utc(DateTime.new(1942,3,28,14,59,59)).zone_identifier)
      assert_equal(:EST, tz.period_for_utc(DateTime.new(1942,3,28,15,0,0)).zone_identifier)
      assert_equal(:EST, tz.period_for_utc(DateTime.new(1942,9,26,15,59,59)).zone_identifier)
      assert_equal(:EST, tz.period_for_utc(DateTime.new(1942,9,26,16,0,0)).zone_identifier)
      
      assert_equal(:EST, tz.period_for_local(DateTime.new(1942,3,29,1,59,59), true).zone_identifier)
      assert_equal(:EST, tz.period_for_local(DateTime.new(1942,3,29,1,59,59), false).zone_identifier)
      assert_equal(:EST, tz.period_for_local(DateTime.new(1942,3,29,1,0,0), true).zone_identifier)
      assert_equal(:EST, tz.period_for_local(DateTime.new(1942,3,29,1,0,0), false).zone_identifier)
      assert_equal(:EST, tz.period_for_local(DateTime.new(1942,9,27,1,59,59)).zone_identifier)
      assert_equal(:EST, tz.period_for_local(DateTime.new(1942,9,27,3,0,0)).zone_identifier)
      
      assert_equal(39600, tz.period_for_utc(DateTime.new(1942,3,28,14,59,59)).utc_total_offset)
      assert_equal(36000, tz.period_for_utc(DateTime.new(1942,3,28,15,0,0)).utc_total_offset)
      assert_equal(36000, tz.period_for_utc(DateTime.new(1942,9,26,15,59,59)).utc_total_offset)
      assert_equal(39600, tz.period_for_utc(DateTime.new(1942,9,26,16,0,0)).utc_total_offset)
      
      assert_equal(39600, tz.period_for_local(DateTime.new(1942,3,29,1,59,59), true).utc_total_offset)
      assert_equal(36000, tz.period_for_local(DateTime.new(1942,3,29,1,59,59), false).utc_total_offset)
      assert_equal(39600, tz.period_for_local(DateTime.new(1942,3,29,1,0,0), true).utc_total_offset)
      assert_equal(36000, tz.period_for_local(DateTime.new(1942,3,29,1,0,0), false).utc_total_offset)
      assert_equal(36000, tz.period_for_local(DateTime.new(1942,9,27,1,59,59)).utc_total_offset)
      assert_equal(39600, tz.period_for_local(DateTime.new(1942,9,27,3,0,0)).utc_total_offset)
    end
  end

  def test_time_boundary
    #Australia/Melbourne  Sat Mar 25 15:00:00 1944 UTC = Sun Mar 26 01:00:00 1944 EST isdst=0 gmtoff=36000
    #Australia/Melbourne  Sat Oct 30 15:59:59 1971 UTC = Sun Oct 31 01:59:59 1971 EST isdst=0 gmtoff=36000
    
    tz = Timezone.get('Australia/Melbourne')    
    assert_equal(DateTime.new(1970,1,1,10,0,0), tz.utc_to_local(DateTime.new(1970,1,1,0,0,0)))
    assert_equal(DateTime.new(1970,1,1,0,0,0), tz.local_to_utc(DateTime.new(1970,1,1,10,0,0)))
    assert_equal(Time.utc(1970,1,1,10,0,0), tz.utc_to_local(Time.utc(1970,1,1,0,0,0)))
    assert_equal(Time.utc(1970,1,1,0,0,0), tz.local_to_utc(Time.utc(1970,1,1,10,0,0)))
    assert_equal(36000, tz.utc_to_local(0))
    assert_equal(0, tz.local_to_utc(36000))
  end  
end