private static String genLabel(String name, boolean expectFailure) {
    return name + (expectFailure ? "-failureExpected" : "");
  }
Generate a readable label for a router operation.  For example, for a "getBlob" operation after a delete, this
function will generate the label "getBlob-failureExpected". This is used by {@link TestFuture} to provide tracking
info to the user if a test assertion fails.
@param name the type of operation (i.e. putBlob, getBlob, etc.)
@param expectFailure {@code true} if the operation is expected to fail.
@return the label of the operation
ambry-server/src/integration-test/java/com/github/ambry/server/RouterServerTestFramework.java