more test isolation for mongodb

Author: shaypal5

tests/test_defaults.py

@@ -253,6 +253,10 @@ def _stale_after_next_time(arg_1, arg_2):
 @pytest.mark.parametrize(*PARAMETRIZE_TEST)
 def test_wait_for_calc_applies_dynamically(backend, mongetter):
     """Testing for calls timing out to be performed twice when needed."""
+    if backend == "mongo":
+        mongetter = _get_mongetter_by_collection_name(
+            "test_wait_for_calc_applies_dynamically"
+        )
 
     @cachier.cachier(backend=backend, mongetter=mongetter)
     def _wait_for_calc_timeout_slow(arg_1, arg_2):

tests/test_mongo_core.py

@@ -457,8 +457,12 @@ def _params_with_dataframe(*args, **kwargs):
 @pytest.mark.mongo
 @pytest.mark.parametrize("separate_files", [True, False])
 def test_wait_for_calc_timeout_ok(separate_files):
+    mongetter = _get_mongetter_by_collection_name(
+        "test_wait_for_calc_timeout_ok"
+    )
+
     @cachier(
-        mongetter=_test_mongetter,
+        mongetter=mongetter,
         stale_after=MONGO_DELTA_LONG,
         separate_files=separate_files,
         next_time=False,