Rename PaddingError to InvalidInputLengthError

Author: saxbophone

basest/core/decode.py

@@ -4,7 +4,7 @@
     absolute_import, division, print_function, unicode_literals
 )
 
-from ..exceptions import PaddingError
+from ..exceptions import InvalidInputLengthError
 from .encode import encode_raw
 from .utils import ints_to_symbols, symbols_to_ints, validate_symbol_tables
 
@@ -20,7 +20,7 @@ def decode_raw(input_base, output_base, input_ratio, output_ratio, input_data):
     """
     # raise an exception early if padding was truncated
     if len(input_data) % input_ratio != 0:
-        raise PaddingError(
+        raise InvalidInputLengthError(
             'Decoding requires input length to be an exact multiple of the '
             'input ratio, or for padding to be used to ensure this.'
         )

basest/exceptions.py

@@ -29,7 +29,7 @@ class ImproperUsageError(ValueError):
     pass
 
 
-class PaddingError(ValueError):
+class InvalidInputLengthError(ValueError):
     """
     This exception is raised when an attempt is made to decode data which is
     not the correct length (e.g. where the length is not an exact multiple of

tests/core/test_encode_decode_raw.py

@@ -9,7 +9,7 @@
 from ddt import data, ddt, unpack
 
 from basest.core import decode_raw, encode_raw
-from basest.exceptions import ImproperUsageError, PaddingError
+from basest.exceptions import ImproperUsageError, InvalidInputLengthError
 
 
 @ddt
@@ -152,9 +152,10 @@ def test_decode_raw_rejects_input_of_incorrect_length(
     ):
         """
         When decode_raw() is called with input data which is not of a length
-        exactly divisible by the input ratio, PaddingError should be raised.
+        exactly divisible by the input ratio, InvalidInputLengthError should be
+        raised.
         """
-        with self.assertRaises(PaddingError):
+        with self.assertRaises(InvalidInputLengthError):
             decode_raw(
                 input_base=input_base, output_base=output_base,
                 input_ratio=input_ratio, output_ratio=output_ratio,