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rails--rails/activesupport/test/time_zone_test.rb
Andrew White 3aa26cfb19 Improve ActiveSupport::TimeWithZone conversion to YAML
Previously when converting AS::TimeWithZone to YAML it would be output
as a UTC timestamp. Whilst this preserves the time information accurately
it loses the timezone information. This commit changes that so that it is
saved along with the time information. It also provides nicer encoding of
AS::TimeZone instances themselves which previously embedded all of the
data from the TZInfo records.

Fixes #9183.
2015-04-22 12:12:39 -04:00

499 lines
19 KiB
Ruby

require 'abstract_unit'
require 'active_support/time'
require 'time_zone_test_helpers'
class TimeZoneTest < ActiveSupport::TestCase
include TimeZoneTestHelpers
def test_utc_to_local
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
assert_equal Time.utc(1999, 12, 31, 19), zone.utc_to_local(Time.utc(2000, 1)) # standard offset -0500
assert_equal Time.utc(2000, 6, 30, 20), zone.utc_to_local(Time.utc(2000, 7)) # dst offset -0400
end
def test_local_to_utc
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
assert_equal Time.utc(2000, 1, 1, 5), zone.local_to_utc(Time.utc(2000, 1)) # standard offset -0500
assert_equal Time.utc(2000, 7, 1, 4), zone.local_to_utc(Time.utc(2000, 7)) # dst offset -0400
end
def test_period_for_local
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
assert_instance_of TZInfo::TimezonePeriod, zone.period_for_local(Time.utc(2000))
end
ActiveSupport::TimeZone::MAPPING.each_key do |name|
define_method("test_map_#{name.downcase.gsub(/[^a-z]/, '_')}_to_tzinfo") do
zone = ActiveSupport::TimeZone[name]
assert_respond_to zone.tzinfo, :period_for_local
end
end
def test_from_integer_to_map
assert_instance_of ActiveSupport::TimeZone, ActiveSupport::TimeZone[-28800] # PST
end
def test_from_duration_to_map
assert_instance_of ActiveSupport::TimeZone, ActiveSupport::TimeZone[-480.minutes] # PST
end
ActiveSupport::TimeZone.all.each do |zone|
name = zone.name.downcase.gsub(/[^a-z]/, '_')
define_method("test_from_#{name}_to_map") do
assert_instance_of ActiveSupport::TimeZone, ActiveSupport::TimeZone[zone.name]
end
define_method("test_utc_offset_for_#{name}") do
period = zone.tzinfo.current_period
assert_equal period.utc_offset, zone.utc_offset
end
end
def test_now
with_env_tz 'US/Eastern' do
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)'].dup
def zone.time_now; Time.local(2000); end
assert_instance_of ActiveSupport::TimeWithZone, zone.now
assert_equal Time.utc(2000,1,1,5), zone.now.utc
assert_equal Time.utc(2000), zone.now.time
assert_equal zone, zone.now.time_zone
end
end
def test_now_enforces_spring_dst_rules
with_env_tz 'US/Eastern' do
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)'].dup
def zone.time_now
Time.local(2006,4,2,2) # 2AM springs forward to 3AM
end
assert_equal Time.utc(2006,4,2,3), zone.now.time
assert_equal true, zone.now.dst?
end
end
def test_now_enforces_fall_dst_rules
with_env_tz 'US/Eastern' do
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)'].dup
def zone.time_now
Time.at(1162098000) # equivalent to 1AM DST
end
assert_equal Time.utc(2006,10,29,1), zone.now.time
assert_equal true, zone.now.dst?
end
end
def test_unknown_timezones_delegation_to_tzinfo
zone = ActiveSupport::TimeZone['America/Montevideo']
assert_equal ActiveSupport::TimeZone, zone.class
assert_equal zone.object_id, ActiveSupport::TimeZone['America/Montevideo'].object_id
assert_equal Time.utc(2010, 1, 31, 22), zone.utc_to_local(Time.utc(2010, 2)) # daylight saving offset -0200
assert_equal Time.utc(2010, 3, 31, 21), zone.utc_to_local(Time.utc(2010, 4)) # standard offset -0300
end
def test_today
travel_to(Time.utc(2000, 1, 1, 4, 59, 59)) # 1 sec before midnight Jan 1 EST
assert_equal Date.new(1999, 12, 31), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].today
travel_to(Time.utc(2000, 1, 1, 5)) # midnight Jan 1 EST
assert_equal Date.new(2000, 1, 1), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].today
travel_to(Time.utc(2000, 1, 2, 4, 59, 59)) # 1 sec before midnight Jan 2 EST
assert_equal Date.new(2000, 1, 1), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].today
travel_to(Time.utc(2000, 1, 2, 5)) # midnight Jan 2 EST
assert_equal Date.new(2000, 1, 2), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].today
travel_back
end
def test_tomorrow
travel_to(Time.utc(2000, 1, 1, 4, 59, 59)) # 1 sec before midnight Jan 1 EST
assert_equal Date.new(2000, 1, 1), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].tomorrow
travel_to(Time.utc(2000, 1, 1, 5)) # midnight Jan 1 EST
assert_equal Date.new(2000, 1, 2), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].tomorrow
travel_to(Time.utc(2000, 1, 2, 4, 59, 59)) # 1 sec before midnight Jan 2 EST
assert_equal Date.new(2000, 1, 2), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].tomorrow
travel_to(Time.utc(2000, 1, 2, 5)) # midnight Jan 2 EST
assert_equal Date.new(2000, 1, 3), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].tomorrow
travel_back
end
def test_yesterday
travel_to(Time.utc(2000, 1, 1, 4, 59, 59)) # 1 sec before midnight Jan 1 EST
assert_equal Date.new(1999, 12, 30), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].yesterday
travel_to(Time.utc(2000, 1, 1, 5)) # midnight Jan 1 EST
assert_equal Date.new(1999, 12, 31), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].yesterday
travel_to(Time.utc(2000, 1, 2, 4, 59, 59)) # 1 sec before midnight Jan 2 EST
assert_equal Date.new(1999, 12, 31), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].yesterday
travel_to(Time.utc(2000, 1, 2, 5)) # midnight Jan 2 EST
assert_equal Date.new(2000, 1, 1), ActiveSupport::TimeZone['Eastern Time (US & Canada)'].yesterday
travel_back
end
def test_travel_to_a_date
with_env_tz do
Time.use_zone('Hawaii') do
date = Date.new(2014, 2, 18)
time = date.midnight
travel_to date do
assert_equal date, Date.current
assert_equal time, Time.current
end
end
end
end
def test_travel_to_travels_back_and_reraises_if_the_block_raises
ts = Time.current - 1.second
travel_to ts do
raise
end
flunk # ensure travel_to re-raises
rescue
assert_not_equal ts, Time.current
end
def test_local
time = ActiveSupport::TimeZone["Hawaii"].local(2007, 2, 5, 15, 30, 45)
assert_equal Time.utc(2007, 2, 5, 15, 30, 45), time.time
assert_equal ActiveSupport::TimeZone["Hawaii"], time.time_zone
end
def test_local_with_old_date
time = ActiveSupport::TimeZone["Hawaii"].local(1850, 2, 5, 15, 30, 45)
assert_equal [45,30,15,5,2,1850], time.to_a[0,6]
assert_equal ActiveSupport::TimeZone["Hawaii"], time.time_zone
end
def test_local_enforces_spring_dst_rules
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.local(2006,4,2,1,59,59) # 1 second before DST start
assert_equal Time.utc(2006,4,2,1,59,59), twz.time
assert_equal Time.utc(2006,4,2,6,59,59), twz.utc
assert_equal false, twz.dst?
assert_equal 'EST', twz.zone
twz2 = zone.local(2006,4,2,2) # 2AM does not exist because at 2AM, time springs forward to 3AM
assert_equal Time.utc(2006,4,2,3), twz2.time # twz is created for 3AM
assert_equal Time.utc(2006,4,2,7), twz2.utc
assert_equal true, twz2.dst?
assert_equal 'EDT', twz2.zone
twz3 = zone.local(2006,4,2,2,30) # 2:30AM does not exist because at 2AM, time springs forward to 3AM
assert_equal Time.utc(2006,4,2,3,30), twz3.time # twz is created for 3:30AM
assert_equal Time.utc(2006,4,2,7,30), twz3.utc
assert_equal true, twz3.dst?
assert_equal 'EDT', twz3.zone
end
def test_local_enforces_fall_dst_rules
# 1AM during fall DST transition is ambiguous, it could be either DST or non-DST 1AM
# Mirroring Time.local behavior, this method selects the DST time
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.local(2006,10,29,1)
assert_equal Time.utc(2006,10,29,1), twz.time
assert_equal Time.utc(2006,10,29,5), twz.utc
assert_equal true, twz.dst?
assert_equal 'EDT', twz.zone
end
def test_at
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
secs = 946684800.0
twz = zone.at(secs)
assert_equal Time.utc(1999,12,31,19), twz.time
assert_equal Time.utc(2000), twz.utc
assert_equal zone, twz.time_zone
assert_equal secs, twz.to_f
end
def test_at_with_old_date
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
secs = DateTime.civil(1850).to_f
twz = zone.at(secs)
assert_equal [1850, 1, 1, 0], [twz.utc.year, twz.utc.mon, twz.utc.day, twz.utc.hour]
assert_equal zone, twz.time_zone
assert_equal secs, twz.to_f
end
def test_parse
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.parse('1999-12-31 19:00:00')
assert_equal Time.utc(1999,12,31,19), twz.time
assert_equal Time.utc(2000), twz.utc
assert_equal zone, twz.time_zone
end
def test_parse_string_with_timezone
(-11..13).each do |timezone_offset|
zone = ActiveSupport::TimeZone[timezone_offset]
twz = zone.parse('1999-12-31 19:00:00')
assert_equal twz, zone.parse(twz.to_s)
end
end
def test_parse_with_old_date
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.parse('1883-12-31 19:00:00')
assert_equal [0,0,19,31,12,1883], twz.to_a[0,6]
assert_equal zone, twz.time_zone
end
def test_parse_far_future_date_with_time_zone_offset_in_string
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.parse('2050-12-31 19:00:00 -10:00') # i.e., 2050-01-01 05:00:00 UTC
assert_equal [0,0,0,1,1,2051], twz.to_a[0,6]
assert_equal zone, twz.time_zone
end
def test_parse_returns_nil_when_string_without_date_information_is_passed_in
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
assert_nil zone.parse('foobar')
assert_nil zone.parse(' ')
end
def test_parse_with_incomplete_date
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
zone.stubs(:now).returns zone.local(1999,12,31)
twz = zone.parse('19:00:00')
assert_equal Time.utc(1999,12,31,19), twz.time
end
def test_parse_with_day_omitted
with_env_tz 'US/Eastern' do
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
assert_equal Time.local(2000, 2, 1), zone.parse('Feb', Time.local(2000, 1, 1))
assert_equal Time.local(2005, 2, 1), zone.parse('Feb 2005', Time.local(2000, 1, 1))
assert_equal Time.local(2005, 2, 2), zone.parse('2 Feb 2005', Time.local(2000, 1, 1))
end
end
def test_parse_should_not_black_out_system_timezone_dst_jump
with_env_tz('EET') do
zone = ActiveSupport::TimeZone['Pacific Time (US & Canada)']
twz = zone.parse('2012-03-25 03:29:00')
assert_equal [0, 29, 3, 25, 3, 2012], twz.to_a[0,6]
end
end
def test_parse_should_black_out_app_timezone_dst_jump
with_env_tz('EET') do
zone = ActiveSupport::TimeZone['Pacific Time (US & Canada)']
twz = zone.parse('2012-03-11 02:29:00')
assert_equal [0, 29, 3, 11, 3, 2012], twz.to_a[0,6]
end
end
def test_parse_with_missing_time_components
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
zone.stubs(:now).returns zone.local(1999, 12, 31, 12, 59, 59)
twz = zone.parse('2012-12-01')
assert_equal Time.utc(2012, 12, 1), twz.time
end
def test_parse_with_javascript_date
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.parse("Mon May 28 2012 00:00:00 GMT-0700 (PDT)")
assert_equal Time.utc(2012, 5, 28, 7, 0, 0), twz.utc
end
def test_parse_doesnt_use_local_dst
with_env_tz 'US/Eastern' do
zone = ActiveSupport::TimeZone['UTC']
twz = zone.parse('2013-03-10 02:00:00')
assert_equal Time.utc(2013, 3, 10, 2, 0, 0), twz.time
end
end
def test_parse_handles_dst_jump
with_env_tz 'US/Eastern' do
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.parse('2013-03-10 02:00:00')
assert_equal Time.utc(2013, 3, 10, 3, 0, 0), twz.time
end
end
def test_strptime
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.strptime('1999-12-31 12:00:00', '%Y-%m-%d %H:%M:%S')
assert_equal Time.utc(1999,12,31,17), twz
assert_equal Time.utc(1999,12,31,12), twz.time
assert_equal Time.utc(1999,12,31,17), twz.utc
assert_equal zone, twz.time_zone
end
def test_strptime_with_nondefault_time_zone
with_tz_default ActiveSupport::TimeZone['Pacific Time (US & Canada)'] do
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.strptime('1999-12-31 12:00:00', '%Y-%m-%d %H:%M:%S')
assert_equal Time.utc(1999,12,31,17), twz
assert_equal Time.utc(1999,12,31,12), twz.time
assert_equal Time.utc(1999,12,31,17), twz.utc
assert_equal zone, twz.time_zone
end
end
def test_strptime_with_explicit_time_zone_as_abbrev
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.strptime('1999-12-31 12:00:00 PST', '%Y-%m-%d %H:%M:%S %Z')
assert_equal Time.utc(1999,12,31,20), twz
assert_equal Time.utc(1999,12,31,15), twz.time
assert_equal Time.utc(1999,12,31,20), twz.utc
assert_equal zone, twz.time_zone
end
def test_strptime_with_explicit_time_zone_as_h_offset
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.strptime('1999-12-31 12:00:00 -08', '%Y-%m-%d %H:%M:%S %:::z')
assert_equal Time.utc(1999,12,31,20), twz
assert_equal Time.utc(1999,12,31,15), twz.time
assert_equal Time.utc(1999,12,31,20), twz.utc
assert_equal zone, twz.time_zone
end
def test_strptime_with_explicit_time_zone_as_hm_offset
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.strptime('1999-12-31 12:00:00 -08:00', '%Y-%m-%d %H:%M:%S %:z')
assert_equal Time.utc(1999,12,31,20), twz
assert_equal Time.utc(1999,12,31,15), twz.time
assert_equal Time.utc(1999,12,31,20), twz.utc
assert_equal zone, twz.time_zone
end
def test_strptime_with_explicit_time_zone_as_hms_offset
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.strptime('1999-12-31 12:00:00 -08:00:00', '%Y-%m-%d %H:%M:%S %::z')
assert_equal Time.utc(1999,12,31,20), twz
assert_equal Time.utc(1999,12,31,15), twz.time
assert_equal Time.utc(1999,12,31,20), twz.utc
assert_equal zone, twz.time_zone
end
def test_strptime_with_almost_explicit_time_zone
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
twz = zone.strptime('1999-12-31 12:00:00 %Z', '%Y-%m-%d %H:%M:%S %%Z')
assert_equal Time.utc(1999,12,31,17), twz
assert_equal Time.utc(1999,12,31,12), twz.time
assert_equal Time.utc(1999,12,31,17), twz.utc
assert_equal zone, twz.time_zone
end
def test_strptime_with_day_omitted
with_env_tz 'US/Eastern' do
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
assert_equal Time.local(2000, 2, 1), zone.strptime('Feb', '%b', Time.local(2000, 1, 1))
assert_equal Time.local(2005, 2, 1), zone.strptime('Feb 2005', '%b %Y', Time.local(2000, 1, 1))
assert_equal Time.local(2005, 2, 2), zone.strptime('2 Feb 2005', '%e %b %Y', Time.local(2000, 1, 1))
end
end
def test_utc_offset_lazy_loaded_from_tzinfo_when_not_passed_in_to_initialize
tzinfo = TZInfo::Timezone.get('America/New_York')
zone = ActiveSupport::TimeZone.create(tzinfo.name, nil, tzinfo)
assert_equal nil, zone.instance_variable_get('@utc_offset')
assert_equal(-18_000, zone.utc_offset)
end
def test_seconds_to_utc_offset_with_colon
assert_equal "-06:00", ActiveSupport::TimeZone.seconds_to_utc_offset(-21_600)
assert_equal "+00:00", ActiveSupport::TimeZone.seconds_to_utc_offset(0)
assert_equal "+05:00", ActiveSupport::TimeZone.seconds_to_utc_offset(18_000)
end
def test_seconds_to_utc_offset_without_colon
assert_equal "-0600", ActiveSupport::TimeZone.seconds_to_utc_offset(-21_600, false)
assert_equal "+0000", ActiveSupport::TimeZone.seconds_to_utc_offset(0, false)
assert_equal "+0500", ActiveSupport::TimeZone.seconds_to_utc_offset(18_000, false)
end
def test_seconds_to_utc_offset_with_negative_offset
assert_equal "-01:00", ActiveSupport::TimeZone.seconds_to_utc_offset(-3_600)
assert_equal "-00:59", ActiveSupport::TimeZone.seconds_to_utc_offset(-3_599)
assert_equal "-05:30", ActiveSupport::TimeZone.seconds_to_utc_offset(-19_800)
end
def test_formatted_offset_positive
zone = ActiveSupport::TimeZone['New Delhi']
assert_equal "+05:30", zone.formatted_offset
assert_equal "+0530", zone.formatted_offset(false)
end
def test_formatted_offset_negative
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
assert_equal "-05:00", zone.formatted_offset
assert_equal "-0500", zone.formatted_offset(false)
end
def test_z_format_strings
zone = ActiveSupport::TimeZone['Tokyo']
twz = zone.now
assert_equal '+0900', twz.strftime('%z')
assert_equal '+09:00', twz.strftime('%:z')
assert_equal '+09:00:00', twz.strftime('%::z')
end
def test_formatted_offset_zero
zone = ActiveSupport::TimeZone['London']
assert_equal "+00:00", zone.formatted_offset
assert_equal "UTC", zone.formatted_offset(true, 'UTC')
end
def test_zone_compare
zone1 = ActiveSupport::TimeZone['Central Time (US & Canada)'] # offset -0600
zone2 = ActiveSupport::TimeZone['Eastern Time (US & Canada)'] # offset -0500
assert zone1 < zone2
assert zone2 > zone1
assert zone1 == zone1
end
def test_zone_match
zone = ActiveSupport::TimeZone['Eastern Time (US & Canada)']
assert zone =~ /Eastern/
assert zone =~ /New_York/
assert zone !~ /Nonexistent_Place/
end
def test_to_s
assert_equal "(GMT+05:30) New Delhi", ActiveSupport::TimeZone['New Delhi'].to_s
end
def test_all_sorted
all = ActiveSupport::TimeZone.all
1.upto( all.length-1 ) do |i|
assert all[i-1] < all[i]
end
end
def test_index
assert_nil ActiveSupport::TimeZone["bogus"]
assert_instance_of ActiveSupport::TimeZone, ActiveSupport::TimeZone["Central Time (US & Canada)"]
assert_instance_of ActiveSupport::TimeZone, ActiveSupport::TimeZone[8]
assert_raise(ArgumentError) { ActiveSupport::TimeZone[false] }
end
def test_unknown_zone_raises_exception
assert_raise TZInfo::InvalidTimezoneIdentifier do
ActiveSupport::TimeZone.create("bogus")
end
end
def test_unknown_zones_dont_store_mapping_keys
assert_nil ActiveSupport::TimeZone["bogus"]
end
def test_new
assert_equal ActiveSupport::TimeZone["Central Time (US & Canada)"], ActiveSupport::TimeZone.new("Central Time (US & Canada)")
end
def test_us_zones
assert ActiveSupport::TimeZone.us_zones.include?(ActiveSupport::TimeZone["Hawaii"])
assert !ActiveSupport::TimeZone.us_zones.include?(ActiveSupport::TimeZone["Kuala Lumpur"])
end
def test_to_yaml
assert_equal("--- !ruby/object:ActiveSupport::TimeZone\nname: Pacific/Honolulu\n", ActiveSupport::TimeZone["Hawaii"].to_yaml)
assert_equal("--- !ruby/object:ActiveSupport::TimeZone\nname: Europe/London\n", ActiveSupport::TimeZone["Europe/London"].to_yaml)
end
def test_yaml_load
assert_equal(ActiveSupport::TimeZone["Pacific/Honolulu"], YAML.load("--- !ruby/object:ActiveSupport::TimeZone\nname: Pacific/Honolulu\n"))
end
end