Fixed errors thrown to namespace collision

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@421 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

activesupport/lib/core_ext/numeric/time.rb

@@ -38,15 +38,15 @@ def years
         alias :year :years
 
         # Reads best without arguments:  10.minutes.ago
-        def ago(time = Time.now)
+        def ago(time = ::Time.now)
           time - self
         end
 
         # Reads best with argument:  10.minutes.until(time)
         alias :until :ago
 
         # Reads best with argument:  10.minutes.since(time)
-        def since(time = Time.now)
+        def since(time = ::Time.now)
           time + self
         end
 

activesupport/test/core_ext/numeric_ext_test.rb

@@ -13,17 +13,31 @@ def setup
     }
   end
 
-  def test_time_units
+  def test_units
     @seconds.each do |actual, expected|
       assert_equal expected, actual
-      assert_equal expected.since(@now),  @now + actual
-      assert_equal expected.until(@now),  @now - actual
+    end
+  end
+
+  def test_intervals
+    @seconds.values.each do |seconds|
+      assert_equal seconds.since(@now), @now + seconds
+      assert_equal seconds.until(@now), @now - seconds
+    end
+  end
+
+  # Test intervals based from Time.now
+  def test_now
+    @seconds.values.each do |seconds|
+      now = Time.now
+      assert seconds.ago >= now - seconds
+      now = Time.now
+      assert seconds.from_now >= now + seconds
     end
   end
 end
 
 class NumericExtSizeTest < Test::Unit::TestCase
-
   def test_unit_in_terms_of_another
     relationships = {
         1024.kilobytes =>   1.megabyte,