%% ---------------------------------------------------------------------
%% Licensed under the Apache License, Version 2.0 (the "License"); you may
%% not use this file except in compliance with the License. You may obtain
%% a copy of the License at <http://www.apache.org/licenses/LICENSE-2.0>
%%
%% Unless required by applicable law or agreed to in writing, software
%% distributed under the License is distributed on an "AS IS" BASIS,
%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
%% See the License for the specific language governing permissions and
%% limitations under the License.
%%
%% @author Richard Carlsson <[email protected]>
%% @copyright 2012 Richard Carlsson
%% @doc Tests. For including in another module.
%-module(basic_test).
%-import(basic, run/1)
-export([basic_fib/1]).
-include_lib("eunit/include/eunit.hrl").
basics_test_() ->
[?_assertEqual(42, run(1,[{1,{stop, 42}}])),
?_assertEqual("hello", run(1,[{1,{stop,"hello"}}])),
?_assertEqual(0, run(1,[{1,{print, "hello ~w", [42]}}])),
?_assertEqual(5, run(1,[{1,{stop, {plus, 2, 3}}}])),
?_assertEqual(5, run(1,[{1,{stop,{plus, 8, -3}}}])),
?_assertEqual(0, run(1,[{1,{stop,{equal, 0, 1}}}])),
?_assertEqual(1, run(1,[{1,{stop,{equal, 1, 1}}}])),
?_assertEqual(0, run(1,[{1,{stop,{gt, 0, 1}}}])),
?_assertEqual(0, run(1,[{1,{stop,{gt, 1, 1}}}])),
?_assertEqual(1, run(1,[{1,{stop,{gt, 2, 1}}}])),
?_assertEqual(0, run(1,[{1,{stop,{knot, 42}}}])),
?_assertEqual(1, run(1,[{1,{stop,{knot, 0}}}])),
?_assertEqual(42, run(1,[{1,{set, x, 42}}, {2,{stop,x}}])),
?_assertEqual(17, run(1,[{1,{iff, 1, 2, 3}},
{2,{stop, 17}},
{3,{stop, 42}}])),
?_assertEqual(42, run(1,[{1,{iff, 0, 2, 3}},
{2,{stop, 17}},
{3,{stop, 42}}])),
?_assertEqual(17, run(1,[{1,{iff, 1, 2, 3}},
{2,{stop, 17}},
{3,{stop, -1}}])),
?_assertEqual(42, run(1,[{1,{iff, 0, 2, 3}},
{2,{stop, -1}},
{3,{stop, 42}}]))
].
fib_test_() ->
[?_assertEqual(fib(N), basic_fib(N)) || N <- lists:seq(1,15)
].
fib(N) when N > 1 ->
fib(N-1) + fib(N-2);
fib(_) ->
1.
basic_fib(N) ->
run(1,
[{1,{set,x,0}},
{2,{set,a,1}},
{3,{set,b,0}},
{10,{iff, {equal, x, N}, 20, 30}},
{20,{stop,a}},
{30,{print,"~w, ~w, ~w\n",[x,a,b]}},
{31,{set,t,a}},
{32,{set,a,{plus,a,b}}},
{33,{set,b,t}},
{34,{set,x,{plus,x,1}}},
{40,{goto,10}}
]).
