assertEquals("HOST", nbtAddress.nextCalledName(mockContext));
        verify(mockNameServiceClient).getNodeStatus(nbtAddress);
    }

    @Test
    void testNextCalledName_SmbServerName_UnknownHostException() throws UnknownHostException {
        // Test nextCalledName when getNodeStatus throws UnknownHostException
        when(mockContext.getNameServiceClient()).thenReturn(mockNameServiceClient);