added more benchmarks for special cases

benchmark.rb

@@ -5,18 +5,74 @@ require 'rubygems'
 require 'active_support'
 require 'active_record'
 require 'action_controller'
+require 'rails/version'
 
 $: << 'lib'
 require 'lib/validates_timeliness'
 
+
 n = 10000
 Benchmark.bm do |x|
-  x.report('timeliness') { 
+  x.report('timeliness - datetime') { 
     n.times do
       ActiveRecord::Base.timeliness_date_time_parse("2000-01-04 12:12:12", :datetime)
     end 
   }
+
+  x.report('timeliness - date') { 
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("2000-01-04", :date)
+    end 
+  }
   
+  x.report('timeliness - date as datetime') { 
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("2000-01-04", :datetime)
+    end 
+  }
+
+  x.report('timeliness - time') { 
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("12:01:02", :time)
+    end 
+  }
+  
+  x.report('timeliness - invalid format datetime') { 
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("20xx-01-04 12:12:12", :datetime)
+    end 
+  }
+
+  x.report('timeliness - invalid format date') { 
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("20xx-01-04", :date)
+    end 
+  }
+
+  x.report('timeliness - invalid format time') { 
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("12:xx:02", :time)
+    end 
+  }
+  
+
+  x.report('timeliness - invalid value datetime') { 
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("2000-01-32 12:12:12", :datetime)
+    end 
+  }
+
+  x.report('timeliness - invalid value date') { 
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("2000-01-32", :date)
+    end 
+  }
+
+  x.report('timeliness - invalid value time') {
+    n.times do
+      ActiveRecord::Base.timeliness_date_time_parse("12:61:02", :time)
+    end 
+  }
   x.report('date/time') { 
     n.times do
       "2000-01-04 12:12:12" =~ /\A(\d{4})-(\d{2})-(\d{2}) (\d{2})[\. :](\d{2})([\. :](\d{2}))?\Z/