[2225_statistics] add tearDown()

clear statistics data when every test is finished

diff --git a/src/lib/python/isc/statistics/tests/counter_test.py b/src/lib/python/isc/statistics/tests/counter_test.py
index 6d90a951cf738fb9957584b5eb0fcf4080bba0d5..097ded69358ffe85efa36487cfda1d1e0f25becc 100644 (file)
--- a/src/lib/python/isc/statistics/tests/counter_test.py
+++ b/src/lib/python/isc/statistics/tests/counter_test.py
@@ -160,6 +160,9 @@ class BaseTestCounter():
         self._zones_item_list   = self.counter._zones_item_list
         self._started = threading.Event()
 
+    def tearDown(self):
+        self.counter.clear_counters()
+
     def test_perzone_counters(self):
         # for per-zone counters
         for counter_name in self._zones_item_list: