Enhanced unit tests.

Author: todofixthis

test/__init__.py

@@ -2,7 +2,6 @@
 from __future__ import absolute_import, division, print_function, \
   unicode_literals
 
-from collections import defaultdict
 from typing import Dict, List, Optional, Text
 
 from iota import BadApiResponse
@@ -25,7 +24,7 @@ def __init__(self):
     # type: (Optional[dict]) -> None
     super(MockAdapter, self).__init__()
 
-    self.responses  = defaultdict(list) # type: Dict[Text, List[dict]]
+    self.responses  = {} # type: Dict[Text, List[dict]]
     self.requests   = [] # type: List[dict]
 
   def seed_response(self, command, response):
@@ -49,6 +48,9 @@ def seed_response(self, command, response):
        adapter.send_request({'command': 'sayHello'})
        # {'message': 'Hello!'}
     """
+    if command not in self.responses:
+      self.responses[command] = []
+
     self.responses[command].append(response)
     return self
 

test/types_test.py

@@ -204,6 +204,15 @@ def test_slice_accessor(self):
     self.assertEqual(ts[-4:], TryteString(b'KBFA'))
     self.assertEqual(ts[4:-4:4], TryteString(b'9CEY'))
 
+    with self.assertRaises(IndexError):
+      # noinspection PyStatementEffect
+      ts[42]
+
+    # To match the behavior of built-in types, TryteString will allow
+    # you to access a slice that occurs after the end of the sequence.
+    # There's nothing in it, of course, but you can access it.
+    self.assertEqual(ts[42:43], TryteString(b''))
+
   def test_slice_mutator(self):
     """
     Modifying slices of a TryteString.
@@ -233,6 +242,14 @@ def test_slice_mutator(self):
     ts[2:-2:2] = b'IOTA'
     self.assertEqual(ts, TryteString(b'EFIFOOTAABFA'))
 
+    with self.assertRaises(IndexError):
+      ts[42] = b'9'
+
+    # To match the behavior of built-in types, TryteString will allow
+    # you to modify a slice that occurs after the end of the sequence.
+    ts[42:43] = TryteString(b'9')
+    self.assertEqual(ts, TryteString(b'EFIFOOTAABFA9'))
+
   def test_iter_chunks(self):
     """
     Iterating over a TryteString in constant-size chunks.