Fixes #464 Before stopping and removing cid_file. Check if it is present

Closes #464

Signed-off-by: Petr "Stone" Hracek <[email protected]>

Author: phracek

test/test-lib-nodejs.sh

@@ -186,8 +186,10 @@ run_client_test_suite() {
 }
 
 kill_test_application() {
-	docker stop $(cat $cid_file)
-	rm $cid_file
+  docker stop $(cat $cid_file)
+  if [[ -f "$cid_file" ]]; then
+    rm "$cid_file"
+  fi
 }
 
 wait_for_cid() {