update hostcfgd test file

Signed-off-by: Arham-Nasir <arqamnasir719@gmail.com>

tests/hostcfgd/hostcfgd_test.py

@@ -668,6 +668,20 @@ def test_get_memory_statistics_pid_nonexistent(self, mock_pid_exists):
     #             mock_syslog.assert_any_call(mock.ANY, 
     #                 "MemoryStatisticsCfg: Exception failed to retrieve MemoryStatisticsDaemon PID: Unexpected error")
 
+    @mock.patch('hostcfgd.psutil.Process')
+    def test_get_memory_statistics_pid_exception(self, mock_process):
+        """Test general exception handling in get_memory_statistics_pid"""
+        mock_process.side_effect = Exception("Unexpected error")
+        mock_open = mock.mock_open(read_data="123")
+
+        with mock.patch('hostcfgd.psutil.pid_exists', return_value=True):
+            with mock.patch('builtins.open', mock_open):
+                with mock.patch('hostcfgd.syslog.syslog') as mock_syslog:
+                    pid = self.mem_stat_cfg.get_memory_statistics_pid()
+                    self.assertIsNone(pid)
+                    mock_syslog.assert_any_call(mock.ANY, 
+                        "MemoryStatisticsCfg: Exception failed to retrieve MemoryStatisticsDaemon PID: Unexpected error")
+
     def test_memory_statistics_handler(self):
         """Test memory_statistics_handler in HostConfigDaemon"""
         daemon = hostcfgd.HostConfigDaemon()