implement split shuffle

test/test_user_keypad.py

@@ -5,7 +5,7 @@ from src.models import KeypadSize
 
 @pytest.fixture()
 def user_keypad():
-    return UserKeypad.create(keypad_size=KeypadSize(props_per_key=7, numb_of_keys=10))
+    return UserKeypad.create(keypad_size=KeypadSize(props_per_key=8, numb_of_keys=8))
 
 
 def test_dispersion(user_keypad):
@@ -17,19 +17,19 @@ def test_dispersion(user_keypad):
             assert (adj_graph.isdisjoint(post_dispersion_graph[prop]))
 
 
-#def test_shuffle_props(user_keypad):
-#    """there's no easy way to test this. At some point we'll have to run this code thousands of time to see if we get
-#    expected statistical outcomes like:
-#    - every property gets to every key with a uniform distribution
-#    - every property is adjacent to every other property with uniform distribution
-#    - the order in which the cipher move from key to key is random (i.e. the distance traveled is uniform)
-#    """
-#    pre_shuffle_keypad = user_keypad.keypad
-#    user_keypad.partial_keypad_shuffle()
-#    post_shuffle_keypad = user_keypad.keypad
-#    assert (not all(
-#        post_shuffle_keypad[idx] == pre_shuffle_keypad[idx] for idx in range(len(post_shuffle_keypad))
-#    ))
-#    assert (not all(
-#        post_shuffle_keypad[idx] != pre_shuffle_keypad[idx] for idx in range(len(post_shuffle_keypad))
-#    ))
+def test_shuffle_props(user_keypad):
+    """there's no easy way to test this. At some point we'll have to run this code thousands of time to see if we get
+    expected statistical outcomes like:
+    - every property gets to every key with a uniform distribution
+    - every property is adjacent to every other property with uniform distribution
+    - the order in which the cipher move from key to key is random (i.e. the distance traveled is uniform)
+    """
+    pre_shuffle_keypad = user_keypad.keypad.copy()
+    user_keypad.split_shuffle()
+    post_shuffle_keypad = user_keypad.keypad.copy()
+    assert (not all(
+        post_shuffle_keypad[idx] == pre_shuffle_keypad[idx] for idx in range(len(post_shuffle_keypad))
+    ))
+    assert (not all(
+        post_shuffle_keypad[idx] != pre_shuffle_keypad[idx] for idx in range(len(post_shuffle_keypad))
+    ))