Enhance testing for fractional days and weeks. Update changelog.

activesupport/CHANGELOG

 *Edge*
 
+* Time#advance recognizes fractional days and weeks. Deprecate Durations of fractional months and years #970 [Tom Lea]
+
 * Add ActiveSupport::Rescuable module abstracting ActionController::Base rescue_from features. [Norbert Crombach, Pratik]
 
 * Switch from String#chars to String#mb_chars for the unicode proxy.  [Manfred Stienstra]

activesupport/test/core_ext/duration_test.rb

@@ -30,21 +30,17 @@ def test_argument_error
     end
   end
 
-  uses_mocha 'TestDurationSinceAndAgoWithCurrentTime' do
-    def test_fractional_weeks
-      Time.stubs(:now).returns Time.local(2000)
-
-      assert_in_delta((24 * 7 * 1.5).hours, 1.5.weeks, 2 ** -20)
-      assert_in_delta((24 * 7 * 1.7).hours, 1.7.weeks, 2 ** -20)
-    end
-
-    def test_fractional_days
-      Time.stubs(:now).returns Time.local(2000)
+  def test_fractional_weeks
+    assert_equal (86400 * 7) * 1.5, 1.5.weeks
+    assert_equal (86400 * 7) * 1.7, 1.7.weeks
+  end
 
-      assert_in_delta((24 * 1.5).hours, 1.5.days, 2 ** -20)
-      assert_in_delta((24 * 1.7).hours, 1.7.days, 2 ** -20)
-    end
+  def test_fractional_days
+    assert_equal 86400 * 1.5, 1.5.days
+    assert_equal 86400 * 1.7, 1.7.days
+  end
 
+  uses_mocha 'TestDurationSinceAndAgoWithCurrentTime' do
     def test_since_and_ago_with_fractional_days
       Time.stubs(:now).returns Time.local(2000)
       # since

activesupport/test/core_ext/time_ext_test.rb

@@ -381,7 +381,11 @@ def test_advance
     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(2005,3,21,15,15,10), Time.local(2005,2,28,15,15,10).advance(:weeks => 3)
+    assert_equal Time.local(2005,3,25,3,15,10), Time.local(2005,2,28,15,15,10).advance(:weeks => 3.5)
+    assert_equal Time.local(2005,3,26,12,51,10), Time.local(2005,2,28,15,15,10).advance(:weeks => 3.7)
     assert_equal Time.local(2005,3,5,15,15,10), Time.local(2005,2,28,15,15,10).advance(:days => 5)
+    assert_equal Time.local(2005,3,6,3,15,10), Time.local(2005,2,28,15,15,10).advance(:days => 5.5)
+    assert_equal Time.local(2005,3,6,8,3,10), Time.local(2005,2,28,15,15,10).advance(:days => 5.7)
     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(2013,10,17,15,15,10), Time.local(2005,2,28,15,15,10).advance(:years => 7, :months => 19, :weeks => 2, :days => 5)
@@ -399,7 +403,11 @@ def test_utc_advance
     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(2005,3,21,15,15,10), Time.utc(2005,2,28,15,15,10).advance(:weeks => 3)
+    assert_equal Time.utc(2005,3,25,3,15,10), Time.utc(2005,2,28,15,15,10).advance(:weeks => 3.5)
+    assert_equal Time.utc(2005,3,26,12,51,10), Time.utc(2005,2,28,15,15,10).advance(:weeks => 3.7)
     assert_equal Time.utc(2005,3,5,15,15,10), Time.utc(2005,2,28,15,15,10).advance(:days => 5)
+    assert_equal Time.utc(2005,3,6,3,15,10), Time.utc(2005,2,28,15,15,10).advance(:days => 5.5)
+    assert_equal Time.utc(2005,3,6,8,3,10), Time.utc(2005,2,28,15,15,10).advance(:days => 5.7)
     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(2013,10,17,15,15,10), Time.utc(2005,2,28,15,15,10).advance(:years => 7, :months => 19, :weeks => 2, :days => 5)