Rollback is implemented and all existing tests pass.(The existing failure test cases work, but more test cases need to be added).

git-svn-id: https://asterixdb.googlecode.com/svn/branches/asterix_lsm_stabilization@979 eaa15691-b419-025a-1212-ee371bd00084
diff --git a/asterix-app/src/test/resources/runtimets/testsuite.xml b/asterix-app/src/test/resources/runtimets/testsuite.xml
index a428042..fa5290c 100644
--- a/asterix-app/src/test/resources/runtimets/testsuite.xml
+++ b/asterix-app/src/test/resources/runtimets/testsuite.xml
@@ -918,7 +918,7 @@
         <output-file compare="Text">delete-rtree.adm</output-file>
       </compilation-unit>
     </test-case>
-<!--     <test-case FilePath="failure">
+    <test-case FilePath="failure">
       <compilation-unit name="delete">
         <output-file compare="Text">delete.adm</output-file>
         <expected-error>edu.uci.ics.hyracks.algebricks.common.exceptions.AlgebricksException</expected-error>
@@ -926,7 +926,7 @@
       <compilation-unit name="verify_delete">
         <output-file compare="Text">delete.adm</output-file>
       </compilation-unit>
-    </test-case> -->
+    </test-case>
     <test-case FilePath="failure">
       <compilation-unit name="insert-rtree">
         <output-file compare="Text">insert-rtree.adm</output-file>