Fix zero_chull test

Author: WaVEV

django_mongodb_backend/cache.py

@@ -97,7 +97,7 @@ def set(self, key, value, timeout=DEFAULT_TIMEOUT, version=None):
         key = self.make_and_validate_key(key, version=version)
         serialized_data = self.serializer.dumps(value)
         num = self.collection.count_documents({})
-        if num > self._max_entries:
+        if num >= self._max_entries:
             self._cull(num)
         return self.collection.update_one(
             {"key": key},
@@ -115,7 +115,7 @@ def add(self, key, value, timeout=DEFAULT_TIMEOUT, version=None):
         key = self.make_and_validate_key(key, version=version)
         serialized_data = self.serializer.dumps(value)
         num = self.collection.count_documents({})
-        if num > self._max_entries:
+        if num >= self._max_entries:
             self._cull(num)
         try:
             self.collection.update_one(

tests/cache_/tests.py

@@ -476,7 +476,7 @@ def test_cull(self):
         self._perform_cull_test("cull", 50, 29)
 
     def test_zero_cull(self):
-        self._perform_cull_test("zero_cull", 50, 18)
+        self._perform_cull_test("zero_cull", 50, 19)
 
     def test_cull_delete_when_store_empty(self):
         try: