%%%-------------------------------------------------------------------
%%% @author ivan
%%% @copyright (C) 2023, self
%%% @doc
%%%
%%% @end
%%% Created : 09. Feb 2023 23:52
%%%-------------------------------------------------------------------
-module(fib_test).
-include_lib("eunit/include/eunit.hrl").

fib_test_() -> [
  {"Test fib_p", fun test_fib_p/0 },
  {"Test fib_g", fun test_fib_g/0 },
  {"Test tail_fib", fun test_tail_fib/0 }
].

test_fib_p() ->
  ?assertEqual(0, fib:fib_p(0)),
  ?assertEqual(1, fib:fib_p(1)),
  ?assertEqual(1, fib:fib_p(2)),
  ?assertEqual(2, fib:fib_p(3)),
  ?assertEqual(3, fib:fib_p(4)),
  ?assertEqual(5, fib:fib_p(5)),
  ?assertEqual(8, fib:fib_p(6)),
  ?assertEqual(13, fib:fib_p(7)),
  ?assertEqual(21, fib:fib_p(8)),
  ?assertEqual(34, fib:fib_p(9)),
  ?assertEqual(55, fib:fib_p(10)).

test_fib_g() ->
  ?assertEqual(0, fib:fib_g(0)),
  ?assertEqual(1, fib:fib_g(1)),
  ?assertEqual(1, fib:fib_g(2)),
  ?assertEqual(2, fib:fib_g(3)),
  ?assertEqual(3, fib:fib_g(4)),
  ?assertEqual(5, fib:fib_g(5)),
  ?assertEqual(8, fib:fib_g(6)),
  ?assertEqual(13, fib:fib_g(7)),
  ?assertEqual(21, fib:fib_g(8)),
  ?assertEqual(34, fib:fib_g(9)),
  ?assertEqual(55, fib:fib_g(10)).

test_tail_fib() ->
  ?assertEqual(0, fib:tail_fib(0)),
  ?assertEqual(1, fib:tail_fib(1)),
  ?assertEqual(1, fib:tail_fib(2)),
  ?assertEqual(2, fib:tail_fib(3)),
  ?assertEqual(3, fib:tail_fib(4)),
  ?assertEqual(5, fib:tail_fib(5)),
  ?assertEqual(8, fib:tail_fib(6)),
  ?assertEqual(13, fib:tail_fib(7)),
  ?assertEqual(21, fib:tail_fib(8)),
  ?assertEqual(34, fib:tail_fib(9)),
  ?assertEqual(55, fib:tail_fib(10)).