refactor; rename classes and methods

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(attrs_per_key=7, numb_of_keys=10))
+    return UserKeypad.create(keypad_size=KeypadSize(props_per_key=7, numb_of_keys=10))
 
 
 def test_dispersion(user_keypad):
@@ -22,7 +22,7 @@ def test_shuffle_attrs(user_keypad):
     expected statistical outcomes like:
     - every attribute gets to every key with a uniform distribution
     - every attribute is adjacent to every other attribute with uniform distribution
-    - the order in which the attributes move from key to key is random (i.e. the distance traveled is uniform)
+    - the order in which the customer_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()