diff options
Diffstat (limited to 'activesupport/test')
| -rw-r--r-- | activesupport/test/time_zone_test.rb | 70 |
1 files changed, 64 insertions, 6 deletions
diff --git a/activesupport/test/time_zone_test.rb b/activesupport/test/time_zone_test.rb index 43f60690d9..de06482af6 100644 --- a/activesupport/test/time_zone_test.rb +++ b/activesupport/test/time_zone_test.rb @@ -62,11 +62,32 @@ class TimeZoneTest < Test::Unit::TestCase uses_mocha 'TestTimeZoneNowAndToday' do def test_now - TZInfo::DataTimezone.any_instance.stubs(:now).returns(Time.utc(2000)) - zone = TimeZone['Eastern Time (US & Canada)'] - assert_instance_of ActiveSupport::TimeWithZone, zone.now - assert_equal Time.utc(2000), zone.now.time - assert_equal zone, zone.now.time_zone + with_env_tz 'US/Eastern' do + Time.stubs(:now).returns(Time.local(2000)) + zone = TimeZone['Eastern Time (US & Canada)'] + 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 + Time.stubs(:now).returns(Time.local(2006,4,2,2)) # 2AM springs forward to 3AM + zone = TimeZone['Eastern Time (US & Canada)'] + 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 + Time.stubs(:now).returns(Time.local(2006,10,29,1)) # 1AM is ambiguous; could be DST or non-DST 1AM + zone = TimeZone['Eastern Time (US & Canada)'] + assert_equal Time.utc(2006,10,29,1), zone.now.time # selects DST 1AM + assert_equal true, zone.now.dst? + end end def test_today @@ -134,5 +155,42 @@ class TimeZoneTest < Test::Unit::TestCase assert_equal Time.utc(2007, 2, 5, 15, 30, 45), time.time assert_equal TimeZone["Hawaii"], time.time_zone end -end + + def test_local_enforces_spring_dst_rules + zone = 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 = 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 + protected + def with_env_tz(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 |