Avoid microseconds when comparing times

Fixes #83.

lib/ice_cube/rule.rb

@@ -66,7 +66,7 @@ def next_time(time, schedule, closing_time)
     end
 
     def on?(time, schedule)
-      next_time(time, schedule, time) == time
+      next_time(time, schedule, time).to_i == time.to_i
     end
 
     # Whether this rule requires a full run

lib/ice_cube/validated_rule.rb

@@ -24,7 +24,7 @@ def next_time(time, schedule, closing_time)
 
       until finds_acceptable_time?
         # Prevent a non-matching infinite loop
-        return nil if closing_time && @time > closing_time
+        return nil if closing_time && @time.to_i > closing_time.to_i
       end
 
       # NOTE Uses may be 1 higher than proper here since end_time isn't

spec/examples/regression_spec.rb

@@ -103,12 +103,14 @@
   end
 
   it 'should not include exception times due to rounding errors [#83]' do
-    start_time = Time.now # start time with usec
-    exdate = Time.at (start_time + IceCube::ONE_DAY).to_i # one day in the future, no usec
+    start_time = Time.new(2012, 12, 21, 21, 12, 21.212121)
 
     schedule = IceCube::Schedule.new start_time
     schedule.rrule IceCube::Rule.daily
-    schedule.first(1)[0].mday.should_not == exdate.mday
+    schedule.exdate (start_time + IceCube::ONE_DAY).round
+
+    schedule.first(2)[0].should == start_time
+    schedule.first(2)[1].should == (start_time + 2*IceCube::ONE_DAY)
   end
 
   it 'should return true if a recurring schedule occurs_between? a time range [#88]' do

spec/examples/validated_rule_spec.rb

@@ -38,6 +38,15 @@
           rule.next_time(first + 1.hour + 1.second, schedule, nil).to_s.should_not == first.to_s
         end
       end
+
+    end
+
+    it 'should match times with usec' do
+      first_time = Time.new(2012, 12, 21, 12, 21, 12.12121212)
+      schedule = stub(start_time: first_time)
+      rule = IceCube::Rule.secondly
+
+      rule.next_time(first_time + 1, schedule, nil).should == first_time + 1
     end
   end
 end