public static void setSourceChannelKeys(String... sourceChannelKeys) {
        sChannelSourceKeySet.clear();
        if (sourceChannelKeys != null && sourceChannelKeys.length > 0) {
            for (String key : sourceChannelKeys) {
                if (!TextUtils.isEmpty(key)) {
                    sChannelSourceKeySet.add(key);
                }
            }
        }
    }
@Test
    public void setSourceChannelKeys() {
        ChannelUtils.setSourceChannelKeys();
    }