Capture previous command exit code in integration tests cleanup (#2503)

* show previous response code

* log previous response code of shell script command

test/tests/test_huge_response/test_huge_response.sh

@@ -11,6 +11,7 @@ ROOT=$(dirname $0)/../../..
 pushd $ROOT/test/tests/test_huge_response
 
 cleanup() {
+    echo "previous response" $?
     log "Cleaning up..."
     clean_resource_by_id $TEST_ID
     rm -rf response.json