added more comparison specs to data_mapper_adapter_spec.rb

spec/cancan/ability_spec.rb

@@ -19,7 +19,7 @@
   it "should pass true to `can?` when non false/nil is returned in block" do
     @ability.can :read, :all
     @ability.can :read, Symbol do |sym|
-      "foo" # TODO test that sym is nil when no instance is passed
+      "foo"
     end
     @ability.can?(:read, :some_symbol).should == true
   end

spec/cancan/model_adapters/data_mapper_adapter_spec.rb

@@ -114,6 +114,25 @@ class Comment
       @ability.should_not be_able_to(:read, article3)
     end
 
-    # TODO: add more comparison specs
+    it "should match lt condition" do
+      @ability.can :read, Article, :priority.lt => 4
+      article1 = Article.create(:priority => 4)
+      article2 = Article.create(:priority => 3)
+      Article.accessible_by(@ability).should == [article2]
+      @ability.should be_able_to(:read, article2)
+      @ability.should_not be_able_to(:read, article1)
+    end
+
+    it "should match lte condition" do
+      @ability.can :read, Article, :priority.lte => 4
+      article1 = Article.create(:priority => 5)
+      article2 = Article.create(:priority => 4)
+      article3 = Article.create(:priority => 3)
+      Article.accessible_by(@ability).should == [article2, article3]
+      @ability.should be_able_to(:read, article2)
+      @ability.should be_able_to(:read, article3)
+      @ability.should_not be_able_to(:read, article1)
+    end
+
   end
 end