diff options
| -rw-r--r-- | activesupport/CHANGELOG.md | 33 | ||||
| -rw-r--r-- | activesupport/lib/active_support/values/time_zone.rb | 30 | ||||
| -rw-r--r-- | activesupport/test/time_zone_test.rb | 110 |
3 files changed, 173 insertions, 0 deletions
diff --git a/activesupport/CHANGELOG.md b/activesupport/CHANGELOG.md index 86d7626d0c..8fc22a614d 100644 --- a/activesupport/CHANGELOG.md +++ b/activesupport/CHANGELOG.md @@ -1,3 +1,36 @@ +* Add `ActiveSupport::TimeZone.rfc3339` parsing method + + Previously there was no way to get a RFC 3339 timestamp into a specific + timezone without either using `parse` or chaining methods. The new method + allows parsing directly into the timezone, e.g: + + >> Time.zone = "Hawaii" + => "Hawaii" + >> Time.zone.rfc3339("1999-12-31T14:00:00Z") + => Fri, 31 Dec 1999 14:00:00 HST -10:00 + + This new method has stricter semantics than the current `parse` method + and will raise an `ArgumentError` instead of returning nil, e.g: + + >> Time.zone = "Hawaii" + => "Hawaii" + >> Time.zone.rfc3339("foobar") + ArgumentError: invalid date + >> Time.zone.parse("foobar") + => nil + + It will also raise an `ArgumentError` when either the time or offset + components are missing, e.g: + + >> Time.zone = "Hawaii" + => "Hawaii" + >> Time.zone.rfc3339("1999-12-31") + ArgumentError: invalid date + >> Time.zone.rfc3339("1999-12-31T14:00:00") + ArgumentError: invalid date + + *Andrew White* + * Add `ActiveSupport::TimeZone.iso8601` parsing method Previously there was no way to get a ISO 8601 timestamp into a specific diff --git a/activesupport/lib/active_support/values/time_zone.rb b/activesupport/lib/active_support/values/time_zone.rb index 1dedd6d06e..18477b9f6b 100644 --- a/activesupport/lib/active_support/values/time_zone.rb +++ b/activesupport/lib/active_support/values/time_zone.rb @@ -394,6 +394,36 @@ module ActiveSupport parts_to_time(Date._parse(str, false), now) end + # Method for creating new ActiveSupport::TimeWithZone instance in time zone + # of +self+ from an RFC 3339 string. + # + # Time.zone = 'Hawaii' # => "Hawaii" + # Time.zone.rfc3339('2000-01-01T00:00:00Z') # => Fri, 31 Dec 1999 14:00:00 HST -10:00 + # + # If the time or zone components are missing then an +ArgumentError+ will + # be raised. This is much stricter than either +parse+ or +iso8601+ which + # allow for missing components. + # + # Time.zone = 'Hawaii' # => "Hawaii" + # Time.zone.rfc3339('1999-12-31') # => ArgumentError: invalid date + def rfc3339(str) + parts = Date._rfc3339(str) + + raise ArgumentError, "invalid date" if parts.empty? + + time = Time.new( + parts.fetch(:year), + parts.fetch(:mon), + parts.fetch(:mday), + parts.fetch(:hour), + parts.fetch(:min), + parts.fetch(:sec) + parts.fetch(:sec_fraction, 0), + parts.fetch(:offset) + ) + + TimeWithZone.new(time.utc, self) + end + # Parses +str+ according to +format+ and returns an ActiveSupport::TimeWithZone. # # Assumes that +str+ is a time in the time zone +self+, diff --git a/activesupport/test/time_zone_test.rb b/activesupport/test/time_zone_test.rb index 6cc5bf9d25..1615d8fdb2 100644 --- a/activesupport/test/time_zone_test.rb +++ b/activesupport/test/time_zone_test.rb @@ -223,6 +223,23 @@ class TimeZoneTest < ActiveSupport::TestCase assert_equal zone, twz.time_zone end + def test_iso8601_with_fractional_seconds + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + twz = zone.iso8601("1999-12-31T19:00:00.750") + assert_equal 750000, twz.time.usec + assert_equal Time.utc(1999, 12, 31, 19, 0, 0 + Rational(3, 4)), twz.time + assert_equal Time.utc(2000, 1, 1, 0, 0, 0 + Rational(3, 4)), twz.utc + assert_equal zone, twz.time_zone + end + + def test_iso8601_with_zone + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + twz = zone.iso8601("1999-12-31T14:00:00-10:00") + 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_iso8601_with_invalid_string zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] @@ -386,6 +403,99 @@ class TimeZoneTest < ActiveSupport::TestCase end end + def test_rfc3339 + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + twz = zone.rfc3339("1999-12-31T14:00:00-10:00") + 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_rfc3339_with_fractional_seconds + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + twz = zone.iso8601("1999-12-31T14:00:00.750-10:00") + assert_equal 750000, twz.time.usec + assert_equal Time.utc(1999, 12, 31, 19, 0, 0 + Rational(3, 4)), twz.time + assert_equal Time.utc(2000, 1, 1, 0, 0, 0 + Rational(3, 4)), twz.utc + assert_equal zone, twz.time_zone + end + + def test_rfc3339_with_missing_time + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + + exception = assert_raises(ArgumentError) do + zone.rfc3339("1999-12-31") + end + + assert_equal "invalid date", exception.message + end + + def test_rfc3339_with_missing_offset + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + + exception = assert_raises(ArgumentError) do + zone.rfc3339("1999-12-31T19:00:00") + end + + assert_equal "invalid date", exception.message + end + + def test_rfc3339_with_invalid_string + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + + exception = assert_raises(ArgumentError) do + zone.rfc3339("foobar") + end + + assert_equal "invalid date", exception.message + end + + def test_rfc3339_with_old_date + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + twz = zone.rfc3339("1883-12-31T19:00:00-05:00") + assert_equal [0, 0, 19, 31, 12, 1883], twz.to_a[0, 6] + assert_equal zone, twz.time_zone + end + + def test_rfc3339_far_future_date_with_time_zone_offset_in_string + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + twz = zone.rfc3339("2050-12-31T19:00:00-10:00") # 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_rfc3339_should_not_black_out_system_timezone_dst_jump + with_env_tz("EET") do + zone = ActiveSupport::TimeZone["Pacific Time (US & Canada)"] + twz = zone.rfc3339("2012-03-25T03:29:00-07:00") + assert_equal [0, 29, 3, 25, 3, 2012], twz.to_a[0, 6] + end + end + + def test_rfc3339_should_black_out_app_timezone_dst_jump + with_env_tz("EET") do + zone = ActiveSupport::TimeZone["Pacific Time (US & Canada)"] + twz = zone.rfc3339("2012-03-11T02:29:00-08:00") + assert_equal [0, 29, 3, 11, 3, 2012], twz.to_a[0, 6] + end + end + + def test_rfc3339_doesnt_use_local_dst + with_env_tz "US/Eastern" do + zone = ActiveSupport::TimeZone["UTC"] + twz = zone.rfc3339("2013-03-10T02:00:00Z") + assert_equal Time.utc(2013, 3, 10, 2, 0, 0), twz.time + end + end + + def test_rfc3339_handles_dst_jump + with_env_tz "US/Eastern" do + zone = ActiveSupport::TimeZone["Eastern Time (US & Canada)"] + twz = zone.iso8601("2013-03-10T02:00:00-05:00") + 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") |