void testActivityTracking() {
        long initialTime = channelInfo.getLastActivityTime();

        // Wait a bit and update activity
        try {
            Thread.sleep(10);
        } catch (InterruptedException e) {
            Thread.currentThread().interrupt();
        }

        channelInfo.updateActivity();
        assertTrue(channelInfo.getLastActivityTime() > initialTime);
        assertTrue(channelInfo.getIdleTime() >= 0);

        channel.addBytesSent(1024);
        channel.updateActivity();

        assertEquals(1, channel.getRequestsSent());
        assertEquals(1024, channel.getBytesSent());
        assertTrue(channel.getLastActivityTime() > 0);
    }

    @Test
    void testChannelFailover() throws Exception {
        // Test failover mechanism
        ChannelFailover failover = new ChannelFailover(channelManager);