PropertyConfiguration config = new PropertyConfiguration(props);
        assertEquals(0, config.getChannelBindingPolicy());

        // Test preferred (default)
        props.setProperty("jcifs.smb.client.channelBindingPolicy", "preferred");
        config = new PropertyConfiguration(props);
        assertEquals(1, config.getChannelBindingPolicy());

        // Test required

        when(mockContext.getConfig()).thenReturn(mockConfig);
        when(mockConfig.isUseMultiChannel()).thenReturn(true);
        when(mockConfig.getMaxChannels()).thenReturn(4);
        when(mockConfig.getChannelBindingPolicy()).thenReturn(1); // preferred
        when(mockConfig.getLoadBalancingStrategy()).thenReturn("adaptive");
        when(mockConfig.getChannelHealthCheckInterval()).thenReturn(10);