Cleanup #39 (#42)

Author: LoicBersier

lib/nimble_totp.ex

@@ -344,7 +344,7 @@ defmodule NimbleTOTP do
 
   def valid?(_secret, _otp, _opts), do: false
 
-  @spec validate_digits(integer(), integer()) :: :error | integer()
+  @spec validate_digits(integer(), integer()) :: integer()
   defp validate_digits(<<e, e_rest::binary>>, <<a, a_rest::binary>>) do
     bxor(e, a) ||| validate_digits(e_rest, a_rest)
   end

test/nimble_totp_test.exs

@@ -187,9 +187,9 @@ defmodule NimbleTOTPTest do
         assert NimbleTOTP.valid?(secret, code, time: date_time)
         assert NimbleTOTP.valid?(secret, code, time: naive_date_time)
 
-        refute NimbleTOTP.valid?(secret, "abcdefgh", time: time)
-        refute NimbleTOTP.valid?(secret, "abcdefgh", time: date_time)
-        refute NimbleTOTP.valid?(secret, "abcdefgh", time: naive_date_time)
+        refute NimbleTOTP.valid?(secret, "abcdef", time: time)
+        refute NimbleTOTP.valid?(secret, "abcdef", time: date_time)
+        refute NimbleTOTP.valid?(secret, "abcdef", time: naive_date_time)
       end
     end