preserve transaction kind

Author: borisnadion

app/models/deb/transaction.rb

@@ -24,6 +24,7 @@ def rollback!
         tran.debit_items.each { |di| credit(di.account, di.amount) }
         tran.credit_items.each { |ci| debit(ci.account, ci.amount) }
         reference(tran)
+        kind(tran.kind)
         description("Rollback of #{tran.description}")
       end
     end

spec/models/transaction_spec.rb

@@ -84,6 +84,7 @@ module Deb
           credit @revenue, 5
           credit @liability, 7
           description "foobar"
+          kind "baz"
         end
       end
 
@@ -144,6 +145,10 @@ module Deb
           @rollback.description.should == "Rollback of foobar"
         end
 
+        it "should preserve transaction kind" do
+          @rollback.kind.should == @transaction.kind
+        end
+
         it "should set debit accounts" do
           @rollback.debit_items.collect(&:account).should == [@revenue, @liability]
         end