reformat, fix tests

Author: toshok

instrumentation/opentelemetry-instrumentation-pymongo/src/opentelemetry/instrumentation/pymongo/__init__.py

@@ -198,7 +198,12 @@ def failed(self, event: monitoring.CommandFailedEvent):
         if span is None:
             return
         if span.is_recording():
-            span.set_status(Status(StatusCode.ERROR, event.failure.get("errmsg", "Unknown error")))
+            span.set_status(
+                Status(
+                    StatusCode.ERROR,
+                    event.failure.get("errmsg", "Unknown error"),
+                )
+            )
             try:
                 self.failed_hook(span, event)
             except (

instrumentation/opentelemetry-instrumentation-pymongo/tests/test_pymongo.py

@@ -293,6 +293,7 @@ def __init__(self, command_attrs, connection_id=None, request_id=""):
         self.command_name = self.command.get("command_name")
         self.connection_id = connection_id
         self.request_id = request_id
+        self.failure = None
 
     def mark_as_failed(self):
         # CommandFailedEvent.failure is type _DocumentOut, which pymongo defines as:
@@ -301,9 +302,7 @@ def mark_as_failed(self):
         # ```
         # we go with the former, but both provide a `.get(key, default)` method.
         #
-        self.failure = {
-            "errmsg": "operation failed"
-        }
+        self.failure = {"errmsg": "operation failed"}
 
     def __getattr__(self, item):
         return item