require File.dirname(__FILE__) + '/../abstract_unit'
class TimeExtCalculationsTest < Test::Unit::TestCase
def test_seconds_since_midnight
assert_equal 1,Time.local(2005,1,1,0,0,1).seconds_since_midnight
assert_equal 60,Time.local(2005,1,1,0,1,0).seconds_since_midnight
assert_equal 3660,Time.local(2005,1,1,1,1,0).seconds_since_midnight
assert_equal 86399,Time.local(2005,1,1,23,59,59).seconds_since_midnight
assert_equal 60.00001,Time.local(2005,1,1,0,1,0,10).seconds_since_midnight
end
def test_seconds_since_midnight_at_daylight_savings_time_start
with_timezone 'US/Eastern' do
# dt: US: 2005 April 3rd 2:00am ST => April 3rd 3:00am DT
assert_equal 2*3600-1, Time.local(2005,4,3,1,59,59).seconds_since_midnight, 'just before DST start'
assert_equal 2*3600+1, Time.local(2005,4,3,3, 0, 1).seconds_since_midnight, 'just after DST start'
end
with_timezone 'NZ' do
# dt: New Zealand: 2006 October 1st 2:00am ST => October 1st 3:00am DT
assert_equal 2*3600-1, Time.local(2006,10,1,1,59,59).seconds_since_midnight, 'just before DST start'
assert_equal 2*3600+1, Time.local(2006,10,1,3, 0, 1).seconds_since_midnight, 'just after DST start'
end
end
def test_seconds_since_midnight_at_daylight_savings_time_end
with_timezone 'US/Eastern' do
# st: US: 2005 October 30th 2:00am DT => October 30th 1:00am ST
# avoid setting a time between 1:00 and 2:00 since that requires specifying whether DST is active
assert_equal 1*3600-1, Time.local(2005,10,30,0,59,59).seconds_since_midnight, 'just before DST end'
assert_equal 3*3600+1, Time.local(2005,10,30,2, 0, 1).seconds_since_midnight, 'just after DST end'
# now set a time between 1:00 and 2:00 by specifying whether DST is active
# uses: Time.local( sec, min, hour, day, month, year, wday, yday, isdst, tz )
assert_equal 1*3600+30*60, Time.local(0,30,1,30,10,2005,0,0,true,ENV['TZ']).seconds_since_midnight, 'before DST end'
assert_equal 2*3600+30*60, Time.local(0,30,1,30,10,2005,0,0,false,ENV['TZ']).seconds_since_midnight, 'after DST end'
end
with_timezone 'NZ' do
# st: New Zealand: 2006 March 19th 3:00am DT => March 19th 2:00am ST
# avoid setting a time between 2:00 and 3:00 since that requires specifying whether DST is active
assert_equal 2*3600-1, Time.local(2006,3,19,1,59,59).seconds_since_midnight, 'just before DST end'
assert_equal 4*3600+1, Time.local(2006,3,19,3, 0, 1).seconds_since_midnight, 'just after DST end'
# now set a time between 2:00 and 3:00 by specifying whether DST is active
# uses: Time.local( sec, min, hour, day, month, year, wday, yday, isdst, tz )
assert_equal 2*3600+30*60, Time.local(0,30,2,19,3,2006,0,0,true, ENV['TZ']).seconds_since_midnight, 'before DST end'
assert_equal 3*3600+30*60, Time.local(0,30,2,19,3,2006,0,0,false,ENV['TZ']).seconds_since_midnight, 'after DST end'
end
end
def test_begining_of_week
assert_equal Time.local(2005,1,31), Time.local(2005,2,4,10,10,10).beginning_of_week
assert_equal Time.local(2005,11,28), Time.local(2005,11,28,0,0,0).beginning_of_week #monday
assert_equal Time.local(2005,11,28), Time.local(2005,11,29,0,0,0).beginning_of_week #tuesday
assert_equal Time.local(2005,11,28), Time.local(2005,11,30,0,0,0).beginning_of_week #wednesday
assert_equal Time.local(2005,11,28), Time.local(2005,12,01,0,0,0).beginning_of_week #thursday
assert_equal Time.local(2005,11,28), Time.local(2005,12,02,0,0,0).beginning_of_week #friday
assert_equal Time.local(2005,11,28), Time.local(2005,12,03,0,0,0).beginning_of_week #saturday
assert_equal Time.local(2005,11,28), Time.local(2005,12,04,0,0,0).beginning_of_week #sunday
end
def test_beginning_of_day
assert_equal Time.local(2005,2,4,0,0,0), Time.local(2005,2,4,10,10,10).beginning_of_day
with_timezone 'US/Eastern' do
assert_equal Time.local(2006,4,2,0,0,0), Time.local(2006,4,2,10,10,10).beginning_of_day, 'start DST'
assert_equal Time.local(2006,10,29,0,0,0), Time.local(2006,10,29,10,10,10).beginning_of_day, 'ends DST'
end
with_timezone 'NZ' do
assert_equal Time.local(2006,3,19,0,0,0), Time.local(2006,3,19,10,10,10).beginning_of_day, 'ends DST'
assert_equal Time.local(2006,10,1,0,0,0), Time.local(2006,10,1,10,10,10).beginning_of_day, 'start DST'
end
end
def test_beginning_of_month
assert_equal Time.local(2005,2,1,0,0,0), Time.local(2005,2,22,10,10,10).beginning_of_month
end
def test_beginning_of_quarter
assert_equal Time.local(2005,1,1,0,0,0), Time.local(2005,2,15,10,10,10).beginning_of_quarter
assert_equal Time.local(2005,1,1,0,0,0), Time.local(2005,1,1,0,0,0).beginning_of_quarter
assert_equal Time.local(2005,10,1,0,0,0), Time.local(2005,12,31,10,10,10).beginning_of_quarter
assert_equal Time.local(2005,4,1,0,0,0), Time.local(2005,6,30,23,59,59).beginning_of_quarter
end
def test_end_of_month
assert_equal Time.local(2005,3,31,0,0,0), Time.local(2005,3,20,10,10,10).end_of_month
assert_equal Time.local(2005,2,28,0,0,0), Time.local(2005,2,20,10,10,10).end_of_month
assert_equal Time.local(2005,4,30,0,0,0), Time.local(2005,4,20,10,10,10).end_of_month
end
def test_beginning_of_year
assert_equal Time.local(2005,1,1,0,0,0), Time.local(2005,2,22,10,10,10).beginning_of_year
end
def test_months_ago
assert_equal Time.local(2005,5,5,10), Time.local(2005,6,5,10,0,0).months_ago(1)
assert_equal Time.local(2004,11,5,10), Time.local(2005,6,5,10,0,0).months_ago(7)
assert_equal Time.local(2004,12,5,10), Time.local(2005,6,5,10,0,0).months_ago(6)
assert_equal Time.local(2004,6,5,10), Time.local(2005,6,5,10,0,0).months_ago(12)
assert_equal Time.local(2003,6,5,10), Time.local(2005,6,5,10,0,0).months_ago(24)
end
def test_months_since
assert_equal Time.local(2005,7,5,10), Time.local(2005,6,5,10,0,0).months_since(1)
assert_equal Time.local(2006,1,5,10), Time.local(2005,12,5,10,0,0).months_since(1)
assert_equal Time.local(2005,12,5,10), Time.local(2005,6,5,10,0,0).months_since(6)
assert_equal Time.local(2006,6,5,10), Time.local(2005,12,5,10,0,0).months_since(6)
assert_equal Time.local(2006,1,5,10), Time.local(2005,6,5,10,0,0).months_since(7)
assert_equal Time.local(2006,6,5,10), Time.local(2005,6,5,10,0,0).months_since(12)
assert_equal Time.local(2007,6,5,10), Time.local(2005,6,5,10,0,0).months_since(24)
end
def test_years_ago
assert_equal Time.local(2004,6,5,10), Time.local(2005,6,5,10,0,0).years_ago(1)
assert_equal Time.local(1998,6,5,10), Time.local(2005,6,5,10,0,0).years_ago(7)
end
def test_years_since
assert_equal Time.local(2006,6,5,10), Time.local(2005,6,5,10,0,0).years_since(1)
assert_equal Time.local(2012,6,5,10), Time.local(2005,6,5,10,0,0).years_since(7)
# Failure because of size limitations of numeric?
# assert_equal Time.local(2182,6,5,10), Time.local(2005,6,5,10,0,0).years_since(177)
end
def test_last_year
assert_equal Time.local(2004,6,5,10), Time.local(2005,6,5,10,0,0).last_year
end
def test_next_year
assert_equal Time.local(2006,6,5,10), Time.local(2005,6,5,10,0,0).next_year
end
def test_ago
assert_equal Time.local(2005,2,22,10,10,9), Time.local(2005,2,22,10,10,10).ago(1)
assert_equal Time.local(2005,2,22,9,10,10), Time.local(2005,2,22,10,10,10).ago(3600)
assert_equal Time.local(2005,2,20,10,10,10), Time.local(2005,2,22,10,10,10).ago(86400*2)
assert_equal Time.local(2005,2,20,9,9,45), Time.local(2005,2,22,10,10,10).ago(86400*2 + 3600 + 25)
end
def test_daylight_savings_time_crossings_backward_start
with_timezone 'US/Eastern' do
# dt: US: 2005 April 3rd 4:18am
assert_equal Time.local(2005,4,2,4,18,0), Time.local(2005,4,3,4,18,0).ago(86400), 'dt-1.day=>st'
assert_equal Time.local(2005,4,1,4,18,0), Time.local(2005,4,2,4,18,0).ago(86400), 'st-1.day=>st'
end
with_timezone 'NZ' do
# dt: New Zealand: 2006 October 1st 4:18am
assert_equal Time.local(2006,9,30,4,18,0), Time.local(2006,10,1,4,18,0).ago(86400), 'dt-1.day=>st'
assert_equal Time.local(2006,9,29,4,18,0), Time.local(2006,9,30,4,18,0).ago(86400), 'st-1.day=>st'
end
end
def test_daylight_savings_time_crossings_backward_end
with_timezone 'US/Eastern' do
# st: US: 2005 October 30th 4:03am
assert_equal Time.local(2005,10,29,4,3), Time.local(2005,10,30,4,3,0).ago(86400), 'st-1.day=>dt'
assert_equal Time.local(2005,10,28,4,3), Time.local(2005,10,29,4,3,0).ago(86400), 'dt-1.day=>dt'
end
with_timezone 'NZ' do
# st: New Zealand: 2006 March 19th 4:03am
assert_equal Time.local(2006,3,18,4,3), Time.local(2006,3,19,4,3,0).ago(86400), 'st-1.day=>dt'
assert_equal Time.local(2006,3,17,4,3), Time.local(2006,3,18,4,3,0).ago(86400), 'dt-1.day=>dt'
end
end
def test_since
assert_equal Time.local(2005,2,22,10,10,11), Time.local(2005,2,22,10,10,10).since(1)
assert_equal Time.local(2005,2,22,11,10,10), Time.local(2005,2,22,10,10,10).since(3600)
assert_equal Time.local(2005,2,24,10,10,10), Time.local(2005,2,22,10,10,10).since(86400*2)
assert_equal Time.local(2005,2,24,11,10,35), Time.local(2005,2,22,10,10,10).since(86400*2 + 3600 + 25)
# when out of range of Time, returns a DateTime
assert_equal DateTime.civil(2038,1,20,11,59,59), Time.utc(2038,1,18,11,59,59).since(86400*2)
end
def test_daylight_savings_time_crossings_forward_start
with_timezone 'US/Eastern' do
# st: US: 2005 April 2nd 7:27pm
assert_equal Time.local(2005,4,3,19,27,0), Time.local(2005,4,2,19,27,0).since(86400), 'st+1.day=>dt'
assert_equal Time.local(2005,4,4,19,27,0), Time.local(2005,4,3,19,27,0).since(86400), 'dt+1.day=>dt'
end
with_timezone 'NZ' do
# st: New Zealand: 2006 September 30th 7:27pm
assert_equal Time.local(2006,10,1,19,27,0), Time.local(2006,9,30,19,27,0).since(86400), 'st+1.day=>dt'
assert_equal Time.local(2006,10,2,19,27,0), Time.local(2006,10,1,19,27,0).since(86400), 'dt+1.day=>dt'
end
end
def test_daylight_savings_time_crossings_forward_end
with_timezone 'US/Eastern' do
# dt: US: 2005 October 30th 12:45am
assert_equal Time.local(2005,10,31,0,45,0), Time.local(2005,10,30,0,45,0).since(86400), 'dt+1.day=>st'
assert_equal Time.local(2005,11, 1,0,45,0), Time.local(2005,10,31,0,45,0).since(86400), 'st+1.day=>st'
end
with_timezone 'NZ' do
# dt: New Zealand: 2006 March 19th 1:45am
assert_equal Time.local(2006,3,20,1,45,0), Time.local(2006,3,19,1,45,0).since(86400), 'dt+1.day=>st'
assert_equal Time.local(2006,3,21,1,45,0), Time.local(2006,3,20,1,45,0).since(86400), 'st+1.day=>st'
end
end
def test_yesterday
assert_equal Time.local(2005,2,21,10,10,10), Time.local(2005,2,22,10,10,10).yesterday
assert_equal Time.local(2005,2,28,10,10,10), Time.local(2005,3,2,10,10,10).yesterday.yesterday
end
def test_tomorrow
assert_equal Time.local(2005,2,23,10,10,10), Time.local(2005,2,22,10,10,10).tomorrow
assert_equal Time.local(2005,3,2,10,10,10), Time.local(2005,2,28,10,10,10).tomorrow.tomorrow
end
def test_change
assert_equal Time.local(2006,2,22,15,15,10), Time.local(2005,2,22,15,15,10).change(:year => 2006)
assert_equal Time.local(2005,6,22,15,15,10), Time.local(2005,2,22,15,15,10).change(:month => 6)
assert_equal Time.local(2012,9,22,15,15,10), Time.local(2005,2,22,15,15,10).change(:year => 2012, :month => 9)
assert_equal Time.local(2005,2,22,16), Time.local(2005,2,22,15,15,10).change(:hour => 16)
assert_equal Time.local(2005,2,22,16,45), Time.local(2005,2,22,15,15,10).change(:hour => 16, :min => 45)
assert_equal Time.local(2005,2,22,15,45), Time.local(2005,2,22,15,15,10).change(:min => 45)
assert_equal Time.local(2005,1,2, 5, 0, 0, 0), Time.local(2005,1,2,11,22,33,44).change(:hour => 5)
assert_equal Time.local(2005,1,2,11, 6, 0, 0), Time.local(2005,1,2,11,22,33,44).change(:min => 6)
assert_equal Time.local(2005,1,2,11,22, 7, 0), Time.local(2005,1,2,11,22,33,44).change(:sec => 7)
assert_equal Time.local(2005,1,2,11,22,33, 8), Time.local(2005,1,2,11,22,33,44).change(:usec => 8)
end
def test_utc_change
assert_equal Time.utc(2006,2,22,15,15,10), Time.utc(2005,2,22,15,15,10).change(:year => 2006)
assert_equal Time.utc(2005,6,22,15,15,10), Time.utc(2005,2,22,15,15,10).change(:month => 6)
assert_equal Time.utc(2012,9,22,15,15,10), Time.utc(2005,2,22,15,15,10).change(:year => 2012, :month => 9)
assert_equal Time.utc(2005,2,22,16), Time.utc(2005,2,22,15,15,10).change(:hour => 16)
assert_equal Time.utc(2005,2,22,16,45), Time.utc(2005,2,22,15,15,10).change(:hour => 16, :min => 45)
assert_equal Time.utc(2005,2,22,15,45), Time.utc(2005,2,22,15,15,10).change(:min => 45)
end
def test_plus
assert_equal Time.local(2006,2,28,15,15,10), Time.local(2005,2,28,15,15,10).advance(:years => 1)
assert_equal Time.local(2005,6,28,15,15,10), Time.local(2005,2,28,15,15,10).advance(:months => 4)
assert_equal Time.local(2012,9,28,15,15,10), Time.local(2005,2,28,15,15,10).advance(:years => 7, :months => 7)
assert_equal Time.local(2013,10,3,15,15,10), Time.local(2005,2,28,15,15,10).advance(:years => 7, :months => 19, :days => 5)
assert_equal Time.local(2005,2,28,15,15,10), Time.local(2004,2,29,15,15,10).advance(:years => 1) #leap day plus one year
end
def test_utc_plus
assert_equal Time.utc(2006,2,22,15,15,10), Time.utc(2005,2,22,15,15,10).advance(:years => 1)
assert_equal Time.utc(2005,6,22,15,15,10), Time.utc(2005,2,22,15,15,10).advance(:months => 4)
assert_equal Time.utc(2012,9,22,15,15,10), Time.utc(2005,2,22,15,15,10).advance(:years => 7, :months => 7)
assert_equal Time.utc(2013,10,3,15,15,10), Time.utc(2005,2,22,15,15,10).advance(:years => 7, :months => 19, :days => 11)
assert_equal Time.utc(2005,2,28,15,15,10), Time.utc(2004,2,29,15,15,10).advance(:years => 1) #leap day plus one year
end
def test_next_week
with_timezone 'US/Eastern' do
assert_equal Time.local(2005,2,28), Time.local(2005,2,22,15,15,10).next_week
assert_equal Time.local(2005,2,29), Time.local(2005,2,22,15,15,10).next_week(:tuesday)
assert_equal Time.local(2005,3,4), Time.local(2005,2,22,15,15,10).next_week(:friday)
assert_equal Time.local(2006,10,30), Time.local(2006,10,23,0,0,0).next_week
assert_equal Time.local(2006,11,1), Time.local(2006,10,23,0,0,0).next_week(:wednesday)
end
end
def test_next_week_near_daylight_start
with_timezone 'US/Eastern' do
assert_equal Time.local(2006,4,3), Time.local(2006,4,2,23,1,0).next_week, 'just crossed standard => daylight'
end
with_timezone 'NZ' do
assert_equal Time.local(2006,10,2), Time.local(2006,10,1,23,1,0).next_week, 'just crossed standard => daylight'
end
end
def test_next_week_near_daylight_end
with_timezone 'US/Eastern' do
assert_equal Time.local(2006,10,30), Time.local(2006,10,29,23,1,0).next_week, 'just crossed daylight => standard'
end
with_timezone 'NZ' do
assert_equal Time.local(2006,3,20), Time.local(2006,3,19,23,1,0).next_week, 'just crossed daylight => standard'
end
end
def test_to_s
time = Time.utc(2005, 2, 21, 17, 44, 30)
assert_equal time.to_default_s, time.to_s
assert_equal time.to_default_s, time.to_s(:doesnt_exist)
assert_equal "2005-02-21 17:44:30", time.to_s(:db)
assert_equal "21 Feb 17:44", time.to_s(:short)
assert_equal "17:44", time.to_s(:time)
assert_equal "February 21, 2005 17:44", time.to_s(:long)
assert_equal "February 21st, 2005 17:44", time.to_s(:long_ordinal)
assert_equal "Mon, 21 Feb 2005 17:44:30 +0000", time.to_s(:rfc822)
end
def test_custom_date_format
Time::DATE_FORMATS[:custom] = '%Y%m%d%H%M%S'
assert_equal '20050221143000', Time.local(2005, 2, 21, 14, 30, 0).to_s(:custom)
Time::DATE_FORMATS.delete(:custom)
end
def test_to_date
assert_equal Date.new(2005, 2, 21), Time.local(2005, 2, 21, 17, 44, 30).to_date
end
def test_to_datetime
assert_equal Time.utc(2005, 2, 21, 17, 44, 30).to_datetime, DateTime.civil(2005, 2, 21, 17, 44, 30, 0, 0)
with_timezone 'US/Eastern' do
assert_equal Time.local(2005, 2, 21, 17, 44, 30).to_datetime, DateTime.civil(2005, 2, 21, 17, 44, 30, Rational(Time.local(2005, 2, 21, 17, 44, 30).utc_offset, 86400), 0)
end
with_timezone 'NZ' do
assert_equal Time.local(2005, 2, 21, 17, 44, 30).to_datetime, DateTime.civil(2005, 2, 21, 17, 44, 30, Rational(Time.local(2005, 2, 21, 17, 44, 30).utc_offset, 86400), 0)
end
end
def test_to_time
assert_equal Time.local(2005, 2, 21, 17, 44, 30), Time.local(2005, 2, 21, 17, 44, 30).to_time
end
# NOTE: this test seems to fail (changeset 1958) only on certain platforms,
# like OSX, and FreeBSD 5.4.
def test_fp_inaccuracy_ticket_1836
midnight = Time.local(2005, 2, 21, 0, 0, 0)
assert_equal midnight.midnight, (midnight + 1.hour + 0.000001).midnight
end
def test_days_in_month
assert_equal 31, Time.days_in_month(1, 2005)
assert_equal 28, Time.days_in_month(2, 2005)
assert_equal 29, Time.days_in_month(2, 2004)
assert_equal 29, Time.days_in_month(2, 2000)
assert_equal 28, Time.days_in_month(2, 1900)
assert_equal 31, Time.days_in_month(3, 2005)
assert_equal 30, Time.days_in_month(4, 2005)
assert_equal 31, Time.days_in_month(5, 2005)
assert_equal 30, Time.days_in_month(6, 2005)
assert_equal 31, Time.days_in_month(7, 2005)
assert_equal 31, Time.days_in_month(8, 2005)
assert_equal 30, Time.days_in_month(9, 2005)
assert_equal 31, Time.days_in_month(10, 2005)
assert_equal 30, Time.days_in_month(11, 2005)
assert_equal 31, Time.days_in_month(12, 2005)
end
def test_time_with_datetime_fallback
assert_equal Time.time_with_datetime_fallback(:utc, 2005, 2, 21, 17, 44, 30), Time.utc(2005, 2, 21, 17, 44, 30)
assert_equal Time.time_with_datetime_fallback(:local, 2005, 2, 21, 17, 44, 30), Time.local(2005, 2, 21, 17, 44, 30)
assert_equal Time.time_with_datetime_fallback(:utc, 2039, 2, 21, 17, 44, 30), DateTime.civil(2039, 2, 21, 17, 44, 30, 0, 0)
assert_equal Time.time_with_datetime_fallback(:local, 2039, 2, 21, 17, 44, 30), DateTime.civil(2039, 2, 21, 17, 44, 30, DateTime.now.offset, 0)
assert_equal Time.time_with_datetime_fallback(:utc, 1900, 2, 21, 17, 44, 30), DateTime.civil(1900, 2, 21, 17, 44, 30, 0, 0)
assert_equal Time.time_with_datetime_fallback(:local, 1900, 2, 21, 17, 44, 30), DateTime.civil(1900, 2, 21, 17, 44, 30, DateTime.now.offset, 0)
assert_equal Time.time_with_datetime_fallback(:utc, 2005), Time.utc(2005)
assert_equal Time.time_with_datetime_fallback(:utc, 2039), DateTime.civil(2039, 1, 1, 0, 0, 0, 0, 0)
assert_equal Time.time_with_datetime_fallback(:utc, 2005, 2, 21, 17, 44, 30, 1), Time.utc(2005, 2, 21, 17, 44, 30, 1) #with usec
assert_equal Time.time_with_datetime_fallback(:utc, 2039, 2, 21, 17, 44, 30, 1), DateTime.civil(2039, 2, 21, 17, 44, 30, 0, 0)
end
def test_utc_time
assert_equal Time.utc_time(2005, 2, 21, 17, 44, 30), Time.utc(2005, 2, 21, 17, 44, 30)
assert_equal Time.utc_time(2039, 2, 21, 17, 44, 30), DateTime.civil(2039, 2, 21, 17, 44, 30, 0, 0)
assert_equal Time.utc_time(1901, 2, 21, 17, 44, 30), DateTime.civil(1901, 2, 21, 17, 44, 30, 0, 0)
end
def test_local_time
assert_equal Time.local_time(2005, 2, 21, 17, 44, 30), Time.local(2005, 2, 21, 17, 44, 30)
assert_equal Time.local_time(2039, 2, 21, 17, 44, 30), DateTime.civil(2039, 2, 21, 17, 44, 30, DateTime.now.offset, 0)
assert_equal Time.local_time(1901, 2, 21, 17, 44, 30), DateTime.civil(1901, 2, 21, 17, 44, 30, DateTime.now.offset, 0)
end
def test_next_month_on_31st
assert_equal Time.local(2005, 9, 30), Time.local(2005, 8, 31).next_month
end
def test_last_month_on_31st
assert_equal Time.local(2004, 2, 29), Time.local(2004, 3, 31).last_month
end
def test_xmlschema_is_available
assert_nothing_raised { Time.now.xmlschema }
end
def test_acts_like_time
assert Time.new.acts_like_time?
end
protected
def with_timezone(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