%%
%% %CopyrightBegin%
%% 
%% Copyright Ericsson AB 1997-2017. All Rights Reserved.
%% 
%% 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.
%% 
%% %CopyrightEnd%
%%

-module(nested_SUITE).

-export([all/0, suite/0,
         case_in_case/1, case_in_after/1, catch_in_catch/1, bif_in_bif/1]).

-include_lib("common_test/include/ct.hrl").

suite() ->
    [{ct_hooks,[ts_install_cth]},
     {timetrap, {minutes, 1}}].

all() -> 
    [case_in_case, case_in_after, catch_in_catch,
     bif_in_bif].


case_in_case(suite) -> [];
case_in_case(Config) when is_list(Config) ->
    done = search_any([a], [{a, 1}]),
    done = search_any([x], [{a, 1}]),
    ok.

search_any([Key|Rest], List) ->
    case case lists:keysearch(Key, 1, List) of
             {value, _} -> 
                 true;
             _ ->
                 false
         end of
        true ->
            ok;
        false ->
            error;
        Other ->
            ct:fail({other_result, Other})
    end,
    search_any(Rest, List);
search_any([], _) ->
    done.

case_in_after(suite) -> [];
case_in_after(Config) when is_list(Config) ->
    receive
    after case {x, y, z} of
              {x, y, z} -> 0
          end ->
              ok
    end,
    ok.

%% Test a catch within a catch in the same function.
catch_in_catch(Config) when is_list(Config) ->
    {outer, inner_exit} = catcher(),
    ok.

catcher() ->
    case (catch 
          case (catch ?MODULE:non_existing()) of    % bogus function
              {'EXIT', _} ->
                  inner_exit;
              Res1 ->
                  {inner, Res1}
          end) of
        {'EXIT', _} ->
            outer_exit;
        Res2 ->
            {outer, Res2}
    end.

%% Test a BIF call within a BIF call.
bif_in_bif(Config) when is_list(Config) ->
    Self = self(),
    put(pid, Self),
    Self = register_me(),
    ok.

register_me() ->
    register(?MODULE, Pid = get(pid)),
    Pid.