assertEquals(ChannelState.ESTABLISHED, channelInfo.getState());
        assertTrue(channelInfo.isHealthy());

        channelInfo.setState(ChannelState.ACTIVE);
        assertTrue(channelInfo.isHealthy());

        channelInfo.setState(ChannelState.FAILED);
        assertFalse(channelInfo.isHealthy());
    }

    @Test
    void testActivityTracking() {

        registration.setState(WitnessRegistrationState.REGISTERED);
        assertEquals(WitnessRegistrationState.REGISTERED, registration.getState());

        registration.setState(WitnessRegistrationState.UNREGISTERING);
        assertEquals(WitnessRegistrationState.UNREGISTERING, registration.getState());

        registration.setState(WitnessRegistrationState.FAILED);

            // Reconnect
            channel.setState(ChannelState.CONNECTING);
            // Connection would be ensured through proper transport interface

            // Re-establish channel binding
            manager.performChannelBinding(channel);

            // Update channel with new transport
            channel.setTransport(newTransport);
            channel.setState(ChannelState.ESTABLISHED);

                WitnessRegisterResponse response = rpcClient.register(request);

                if (response != null && response.isSuccess()) {
                    registration.setState(WitnessRegistrationState.REGISTERED);
                    registration.setContextHandle(response.getContextHandle());
                    registrations.put(registration.getRegistrationId(), registration);

        channel.setState(ChannelState.ESTABLISHED);

        // Simulate failure
        IOException failure = new IOException("Connection lost");
        failover.handleFailure(channel, failure);

        // Verify channel state changed
        assertFalse(channel.isHealthy());
        assertEquals(ChannelState.FAILED, channel.getState());
    }

    @Test

        
        // Establish connection
        channel.setState(ChannelState.CONNECTING);
        transport.connect();
        
        // Perform channel binding
        performChannelBinding(channel);
        
        // Add to active channels
        channels.put(channelId, channel);
        channel.setState(ChannelState.ESTABLISHED);
        

        failedChannel.setState(ChannelState.ESTABLISHED);

        when(mockChannelManager.getLoadBalancer()).thenReturn(mockLoadBalancer);
    }

    @Test
    void testHandleFailure() {
        IOException error = new IOException("Connection failed");

        failover.handleFailure(failedChannel, error);

        assertEquals(ChannelState.FAILED, failedChannel.getState());

        NetworkInterfaceInfo remoteInterface = new NetworkInterfaceInfo(addr, 1000);
        ChannelInfo healthyChannel = new ChannelInfo("test-channel", mockTransport, localInterface, remoteInterface);
        healthyChannel.setState(ChannelState.ESTABLISHED);

        // Use reflection or package-private method to add channel for testing
        // For now, just test the empty case
        assertEquals(0, channelManager.getHealthyChannels().size());

        // Establish connection
        channel.setState(ChannelState.CONNECTING);
        // Connection would be ensured through proper transport interface

        // Perform channel binding
        performChannelBinding(channel);

        // Add to active channels
        channels.put(channelId, channel);
        channel.setState(ChannelState.ESTABLISHED);

    }

    @Test
    public void test_user_state() {
        final User user = new User();
        assertNull(user.getState());

        user.setState("CA");
        assertEquals("CA", user.getState());
    }

    @Test
    public void test_user_street() {
        final User user = new User();
        assertNull(user.getStreet());