Changeset 9206

Timestamp:

04/01/08 23:25:03 (8 months ago)

Author:

sam

Message:

Add TzinfoTimezone#dst_utc_offset

Files:

• plugins/tzinfo_timezone/lib/tzinfo_timezone.rb (modified) (1 diff)
• plugins/tzinfo_timezone/test/tzinfo_timezone_test.rb (modified) (1 diff)

plugins/tzinfo_timezone/lib/tzinfo_timezone.rb

@@ -179 +179 @@
-    tzinfo.now
-  end
+  
+  # Returns the UTC offset of this time zone adjusted for DST at the
+  # current time, or optionally at the time specified by +relative_to+.
+  def dst_utc_offset(relative_to = now)
+    dst_offset = tzinfo.period_for_local(relative_to, true).dst? ? 3600 : 0
+    utc_offset + dst_offset
+  end
-
-  # Return the current date in this time zone.

plugins/tzinfo_timezone/test/tzinfo_timezone_test.rb

@@ -21 +21 @@
-    end
-  end
+  
+  def test_dst_utc_offset_in_standard_time
+    zone = TzinfoTimezone["Central Time (US & Canada)"]
+    time = Time.utc(2008, 3, 9)
+    assert_equal zone.utc_offset, zone.dst_utc_offset(time)
+  end
+  
+  def test_dst_utc_offset_in_daylight_time
+    zone = TzinfoTimezone["Central Time (US & Canada)"]
+    time = Time.utc(2008, 3, 9, 12)
+    assert_equal zone.utc_offset + 3600, zone.dst_utc_offset(time)
+  end
-end