%%% @author Andreas Hasselberg <andreas.hasselberg@gmail.com>
%%%
%%% @doc Helper for calling your Elli callback in unit tests. Only the
%%%  callback specified is actually run. Ellis response handling is
%%%  not used, so the headers will for example not include a content
%%%  length and the return format is not standardized.  The unit tests
%%%  below tests elli_example_callback.
%%% @end

-module(elli_test).

-include("elli.hrl").

-export([call/5]).

-spec call(Method::http_method(), Path::binary(),
           Headers::headers(), Body::body(), Opts::proplists:proplist()) ->
           #req{}.
call(Method, Path, Headers, Body, Opts) ->
    Callback = proplists:get_value(callback, Opts),
    CallbackArgs = proplists:get_value(callback_args, Opts),
    Req = elli_http:mk_req(Method, {abs_path, Path}, Headers,
                           Body, {1,1}, undefined, {Callback, CallbackArgs}),
    ok = Callback:handle_event(elli_startup, [], CallbackArgs),
    Callback:handle(Req, CallbackArgs).

-ifdef(TEST).
-include_lib("eunit/include/eunit.hrl").

hello_world_test() ->
    ?assertEqual({ok, [], <<"Hello World!">>},
                 elli_test:call('GET', <<"/hello/world/">>, [], <<>>,
                                ?EXAMPLE_CONF)),
    ?assertEqual({ok, [], <<"Hello Test1">>},
                 elli_test:call('GET', <<"/hello/?name=Test1">>, [], <<>>,
                                ?EXAMPLE_CONF)),
    ?assertEqual({ok,
                  [{<<"Content-type">>, <<"application/json; charset=ISO-8859-1">>}],
                  <<"{\"name\" : \"Test2\"}">>},
                 elli_test:call('GET', <<"/type?name=Test2">>,
                                [{<<"Accept">>, <<"application/json">>}], <<>>,
                                ?EXAMPLE_CONF)).

-endif. %% TEST