channelInfo.setState(ChannelState.ESTABLISHED);
        channelInfo.setPrimary(true);
        int primaryScore = channelInfo.getScore();
        assertTrue(primaryScore > baseScore);

        // High error rate should reduce score
        channelInfo.setState(ChannelState.ESTABLISHED);
        channelInfo.setPrimary(false);
        for (int i = 0; i < 20; i++) {
            channelInfo.incrementRequestsSent();