make_federated_ursulas gets called from a few places of varying depths in the stack - accounting for that.

tests/unit/test_character_sign_and_verify.py

@@ -27,8 +27,6 @@ from nucypher.crypto.powers import (CryptoPower, NoSigningPower, SigningPower)
 """
 Chapter 1: SIGNING
 """
-
-
 def test_actor_without_signing_power_cannot_sign():
     """
     We can create a Character with no real CryptoPower to speak of.

tests/utils/middleware.py

@@ -52,10 +52,11 @@ class _TestMiddlewareClient(NucypherMiddlewareClient):
         return mock_client
 
     def _get_ursula_by_port(self, port):
+        mkuc = MOCK_KNOWN_URSULAS_CACHE
         try:
-            return MOCK_KNOWN_URSULAS_CACHE[port]
+            return mkuc[port]
         except KeyError:
-            raise RuntimeError(
+             raise RuntimeError(
                 "Can't find an Ursula with port {} - did you spin up the right test ursulas?".format(port))
 
     def parse_node_or_host_and_port(self, node=None, host=None, port=None):

tests/utils/ursula.py

@@ -68,13 +68,24 @@ def make_federated_ursulas(ursula_config: UrsulaConfiguration,
 
     federated_ursulas = set()
     frames = inspect.stack(3)
+    # This gets called from various places.
+    for frame in range(1, 10):
+        try:
+            test_name = frames[frame].frame.f_locals['request'].module
+            break
+        except KeyError:
+            continue
 
     for port in range(starting_port, starting_port+quantity):
 
         ursula = ursula_config.produce(rest_port=port + 100,
                                        db_filepath=MOCK_URSULA_DB_FILEPATH,
                                        **ursula_overrides)
-        ursula._FOR_TEST = frames[1].frame.f_locals['request'].module
+        try:
+            ursula._FOR_TEST = test_name
+        except UnboundLocalError:
+            raise RuntimeError("Unable to find a test name to assign to this ursula in the first 10 frames.")
+
         federated_ursulas.add(ursula)
 
         # Store this Ursula in our global testing cache.