Adding classes for tools the Bobs who always decrypt and always fail.

examples/tdec/simple_tdec_local.py

@@ -1,11 +1,11 @@
 from examples.tdec.demo_utilities.demo_sample_conditions import ten_oclock_florida_time
-from nucypher.characters.chaotic import BobGonnaBob, NiceGuyEddie
+from nucypher.characters.chaotic import NiceGuyEddie, _UpAndDownInTheWater
 
 plaintext = b"PEACE AD DAWN"
 THIS_IS_NOT_A_TRINKET = 55
 
 enrico = NiceGuyEddie(encrypting_key=THIS_IS_NOT_A_TRINKET)
-bob = BobGonnaBob(domain="lynx", eth_provider_uri="Nowhere")
+bob = _UpAndDownInTheWater(domain="lynx", eth_provider_uri="Nowhere")
 
 ANYTHING_CAN_BE_PASSED_AS_RITUAL_DATA = 55
 

nucypher/characters/chaotic.py

@@ -164,7 +164,7 @@ class NiceGuyEddie(Enrico, DKGOmniscient):
         return ciphertext
 
 
-class BobGonnaBob(Bob, DKGOmniscient):
+class _UpAndDownInTheWater(Bob, DKGOmniscient):
     """
     A Bob that, if the proper knowledge lands in his hands, is all too happy to perform decryption without Ursula.
 
@@ -262,3 +262,15 @@ class BobGonnaBob(Bob, DKGOmniscient):
         pass
 
     _ensure_ursula_availability = ensure_ursula_availability_is_of_no_conern_to_anyone
+
+
+class ThisBobAlwaysDecrypts(_UpAndDownInTheWater):
+    """
+    A tool for testing success cases.
+    """
+
+
+class ThisBobAlwaysFails(_UpAndDownInTheWater):
+    """
+    A tool for testing interfaces which handle failures from conditions not having been met.
+    """