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%%% Copyright 2010-2011 Manolis Papadakis <manopapad@gmail.com>,
%%% Eirini Arvaniti <eirinibob@gmail.com>
%%% and Kostis Sagonas <kostis@cs.ntua.gr>
%%%
%%% This file is part of PropEr.
%%%
%%% PropEr is free software: you can redistribute it and/or modify
%%% it under the terms of the GNU General Public License as published by
%%% the Free Software Foundation, either version 3 of the License, or
%%% (at your option) any later version.
%%%
%%% PropEr is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
%%% GNU General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License
%%% along with PropEr. If not, see <http://www.gnu.org/licenses/>.
%%% @copyright 2010-2011 Manolis Papadakis, Eirini Arvaniti and Kostis Sagonas
%%% @version {@version}
%%% @author Eirini Arvaniti
-module(error_statem).
-compile(export_all).
-include_lib("proper/include/proper.hrl").
-record(state, {step = 0}).
initial_state() ->
#state{}.
command(_S) ->
oneof([{call,?MODULE,foo,[integer()]},
{call,?MODULE,bar,[]}]).
precondition(_, _) ->
true.
next_state(#state{step=Step}, _, _) ->
#state{step=Step+1}.
postcondition(_, _, _) ->
true.
foo(I) ->
case I > 10 of
false -> ok;
true -> throw(badarg)
end.
bar() -> 42.
prop_simple() ->
?FORALL(Cmds, commands(?MODULE),
begin
{_H,_S,Res} = run_commands(?MODULE, Cmds),
equals(Res, ok)
end).
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