private PolicyTestFrame newFrame() {
        return new PolicyTestFrame(manager);
    }
Ensures that the given number of select passes on the given frame produces an expected list of recipients.

@param frame      The frame to select on.
@param numSelects The number of selects to perform.
@param expected   The list of expected recipients.
documentapi/src/test/java/com/yahoo/documentapi/messagebus/protocol/test/PolicyTestCase.java