diff --git a/spec/validations_spec.rb b/spec/validations_spec.rb
new file mode 100644
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+++ b/spec/validations_spec.rb
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+require File.dirname(__FILE__) + '/spec_helper'
+
+describe ValidatesTimeliness::Validations do
+  describe "with no restrictions" do
+    before :all do
+      class BasicValidation < Person
+        validates_timeliness_of :birth_date_and_time, :allow_blank => true
+        validates_timeliness_of :birth_date, :allow_blank => true
+      end
+    end
+
+    before :each do
+      @person = BasicValidation.new
+    end
+
+    it "should have error for invalid date component for Time column" do
+      @person.birth_date_and_time = "1980-02-30 01:02:03"
+      @person.should_not be_valid
+      @person.errors.on(:birth_date_and_time).should == "is not a valid datetime"
+    end
+
+    it "should have error for invalid time component for Time column" do
+      @person.birth_date_and_time = "1980-02-30 25:02:03"
+      @person.should_not be_valid 
+      @person.errors.on(:birth_date_and_time).should == "is not a valid datetime"
+    end
+
+    it "should have error for invalid date value for Date column" do
+      @person.birth_date = "1980-02-30"
+      @person.should_not be_valid
+      @person.errors.on(:birth_date).should == "is not a valid date"
+    end
+
+    it "should be valid with valid values" do
+      @person.birth_date_and_time = "1980-01-31 12:12:12"
+      @person.birth_date = "1980-01-31"
+      @person.should be_valid
+    end
+    
+    it "should be valid with valid values" do
+      @person.birth_date_and_time = nil
+      @person.birth_date = nil
+      @person.should be_valid
+    end
+  end
+  
+  describe "for Time attribute" do
+    
+    describe "with before and after restrictions" do
+      before :all do
+        class TimeBeforeAfter < Person
+          validates_timeliness_of :birth_date_and_time, :before => Time.now, :after => 1.day.ago
+        end        
+      end
+
+      before :each do
+        @person = TimeBeforeAfter.new
+      end
+      
+      it "should have error when past :before restriction" do
+        @person.birth_date_and_time = 1.minute.from_now
+        @person.should_not be_valid
+        @person.errors.on(:birth_date_and_time).should match(/must be before/)
+      end
+
+      it "should have error when before :after restriction" do
+        @person.birth_date_and_time = 2.days.ago
+        @person.should_not be_valid
+        @person.errors.on(:birth_date_and_time).should match(/must be after/)
+      end
+    end
+
+    describe "with on_or_before and on_or_after restrictions" do
+      before :all do
+        class TimeOnOrBeforeAndAfter < Person
+          validates_timeliness_of :birth_date_and_time, :on_or_before => Time.now.at_midnight, :on_or_after => 1.day.ago
+        end
+      end
+      
+      before :each do
+        @person = TimeOnOrBeforeAndAfter.new
+      end
+        
+      it "should have error when past :on_or_before restriction" do
+        @person.birth_date_and_time = 1.minute.from_now
+        @person.should_not be_valid
+        @person.errors.on(:birth_date_and_time).should match(/must be on or before/)
+      end
+
+      it "should have error when before :on_or_after restriction" do
+        @person.birth_date_and_time = 2.days.ago
+        @person.should_not be_valid
+        @person.errors.on(:birth_date_and_time).should match(/must be on or after/)
+      end
+      
+      it "should be valid when value equal to :on_or_before restriction" do
+        @person.birth_date_and_time = Time.now.at_midnight
+        @person.should be_valid
+      end
+
+      it "should be valid when value equal to :on_or_after restriction" do
+        @person.birth_date_and_time = 1.day.ago
+        @person.should be_valid        
+      end      
+    end
+
+  end
+  
+  describe "with Date attribute" do
+    describe "with before and after restrictions" do
+      before :all do
+        class DateBeforeAfter < Person
+          validates_timeliness_of :birth_date, :before => 1.day.from_now.to_date, :after => 1.day.ago.to_date          
+        end        
+      end
+
+      before :each do
+        @person = DateBeforeAfter.new
+      end
+      
+      it "should have error when past :before restriction" do
+        @person.birth_date = 2.days.from_now.to_date
+        @person.should_not be_valid
+        @person.errors.on(:birth_date).should match(/must be before/)
+      end
+
+      it "should have error when before :after restriction" do
+        @person.birth_date = 2.days.ago.to_date
+        @person.should_not be_valid
+        @person.errors.on(:birth_date).should match(/must be after/)
+      end
+    end
+
+    describe "with on_or_before and on_or_after restrictions" do
+      before :all do
+        class DateOnOrBeforeAndAfter < Person
+          validates_timeliness_of :birth_date, :on_or_before => 1.day.from_now.to_date, :on_or_after => 1.day.ago.to_date
+        end
+      end
+      
+      before :each do
+        @person = DateOnOrBeforeAndAfter.new
+      end
+        
+      it "should have error when past :on_or_before restriction" do
+        @person.birth_date = 2.days.from_now.to_date
+        @person.should_not be_valid
+        @person.errors.on(:birth_date).should match(/must be on or before/)
+      end
+
+      it "should have error when before :on_or_after restriction" do
+        @person.birth_date = 2.days.ago
+        @person.should_not be_valid
+        @person.errors.on(:birth_date).should match(/must be on or after/)
+      end
+      
+      it "should be valid when value equal to :on_or_before restriction" do
+        @person.birth_date = 1.day.from_now.to_date
+        @person.should be_valid
+      end
+
+      it "should be valid when value equal to :on_or_after restriction" do
+        @person.birth_date = 1.day.ago.to_date
+        @person.should be_valid        
+      end      
+    end 
+  end
+  
+  describe "with mixed value and restriction types" do
+    before :all do
+      class MixedBeforeAndAfter < Person
+        validates_timeliness_of :birth_date_and_time, :before => Date.new(2008,1,2), :after => lambda { Time.mktime(2008, 1, 1) }
+        validates_timeliness_of :birth_date, :on_or_before => Time.mktime(2008, 1, 2), :on_or_after => :birth_date_and_time
+      end
+    end
+    
+    before :each do
+      @person = MixedBeforeAndAfter.new
+    end
+    
+    it "should correctly validate time attribute with Date restriction" do
+      @person.birth_date_and_time = "2008-01-03"
+      @person.should_not be_valid
+      @person.errors.on(:birth_date_and_time).should match(/must be before/)
+    end
+    
+    it "should correctly validate with proc restriction" do
+      @person.birth_date_and_time = "2008-01-01"
+      @person.should_not be_valid
+      @person.errors.on(:birth_date_and_time).should match(/must be after/)
+    end
+
+    it "should correctly validate date attribute with Time restriction" do
+      @person.birth_date = "2008-01-03"      
+      @person.should_not be_valid
+      @person.errors.on(:birth_date).should match(/must be on or before/)
+    end
+
+    it "should correctly validate date attribute with symbol restriction" do
+      @person.birth_date = "2008-01-01"
+      @person.birth_date_and_time = "2008-01-02 12:00:00"
+      @person.should_not be_valid
+      @person.errors.on(:birth_date).should match(/must be on or after/)
+    end
+
+  end  
+end