Add more formatting to custom event validatators

Author: TimPansino

tests/testing_support/validators/validate_custom_event.py

@@ -13,6 +13,7 @@
 # limitations under the License.
 
 import time
+from pprint import pformat
 
 from newrelic.common.object_wrapper import function_wrapper
 from testing_support.fixtures import core_application_stats_engine
@@ -61,7 +62,9 @@ def _validate_custom_event_count(wrapped, instance, args, kwargs):
             raise
         else:
             stats = core_application_stats_engine(None)
-            assert stats.custom_events.num_samples == count
+            assert stats.custom_events.num_samples == count, (
+                f"Expected: {count}, Got: {stats.custom_events.num_samples}\nEvents: {pformat(list(stats.custom_events))}"
+            )
 
         return result
 

tests/testing_support/validators/validate_custom_events.py

@@ -14,6 +14,7 @@
 
 import copy
 import time
+from pprint import pformat
 
 from newrelic.common.object_wrapper import function_wrapper, transient_function_wrapper
 from testing_support.fixtures import catch_background_exceptions
@@ -100,8 +101,8 @@ def _check_event_attributes(expected, captured, mismatches):
 def _event_details(matching_custom_events, captured, mismatches):
     details = [
         f"matching_custom_events={matching_custom_events}",
-        f"mismatches={mismatches}",
-        f"captured_events={captured}",
+        f"mismatches={pformat(mismatches)}",
+        f"captured_events={pformat(captured)}",
     ]
 
     return "\n".join(details)