[2853] Add test for SEGMENT_UNUSED case

src/lib/python/isc/datasrc/tests/clientlist_test.py

@@ -255,6 +255,32 @@ class ClientListTest(unittest.TestCase):
                                isc.datasrc.ConfigurableClientList.SEGMENT_INUSE),
                               status[0])
 
+    def test_get_status_unused(self):
+        """
+        Test getting status when segment type is mapped and it has not
+        been reset yet.
+        """
+
+        self.clist = isc.datasrc.ConfigurableClientList(isc.dns.RRClass.IN)
+        self.clist.configure('''[{
+            "type": "sqlite3",
+            "params": {
+                "database_file": "''' + TESTDATA_PATH + '''example.org.sqlite3"
+            },
+            "cache-zones" : ["example.org"],
+            "cache-type": "mapped",
+            "cache-enable": false
+        }]''', True)
+
+        status = self.clist.get_status()
+        self.assertIsNotNone(status)
+        self.assertIsInstance(status, list)
+        self.assertEqual(1, len(status))
+        self.assertIsInstance(status[0], tuple)
+        self.assertTupleEqual(('sqlite3', None,
+                               isc.datasrc.ConfigurableClientList.SEGMENT_UNUSED),
+                              status[0])
+
     def test_get_status_waiting(self):
         """
         Test getting status when segment type is mapped and it has not