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%% -*- erlang-indent-level: 4;indent-tabs-mode: nil -*-
%% ex: ts=4 sw=4 et
-module(rebar_prv_eunit).
-behaviour(provider).
-export([init/1,
do/1,
format_error/1]).
-include("rebar.hrl").
-define(PROVIDER, eunit).
-define(DEPS, [compile]).
%% ===================================================================
%% Public API
%% ===================================================================
-spec init(rebar_state:t()) -> {ok, rebar_state:t()}.
init(State) ->
Provider = providers:create([{name, ?PROVIDER},
{module, ?MODULE},
{deps, ?DEPS},
{bare, false},
{example, "rebar eunit"},
{short_desc, "Run EUnit Tests."},
{desc, ""},
{opts, eunit_opts(State)},
{profile, test}]),
State1 = rebar_state:add_provider(State, Provider),
{ok, State1}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
?INFO("Performing EUnit tests...", []),
{RawOpts, _} = rebar_state:command_parsed_args(State),
Opts = transform_opts(RawOpts, State),
ProjectApps = rebar_state:project_apps(State),
OutDir = case proplists:get_value(outdir, Opts, undefined) of
undefined -> filename:join([rebar_state:dir(State),
ec_file:insecure_mkdtemp()]);
Path -> Path
end,
?DEBUG("Compiling EUnit instrumented modules in: ~p", [OutDir]),
lists:foreach(fun(App) ->
AppDir = rebar_app_info:dir(App),
C = rebar_config:consult(AppDir),
S = rebar_state:new(State, C, AppDir),
%% combine `erl_first_files` and `eunit_first_files` and adjust
%% compile opts to include `eunit_compile_opts`, `{d, 'TEST'}`
%% and `{src_dirs, "test"}`
TestState = first_files(test_opts(S, OutDir)),
ok = rebar_erlc_compiler:compile(TestState, AppDir)
end, ProjectApps),
true = code:add_patha(OutDir),
EUnitOpts = resolve_eunit_opts(State, Opts),
AppsToTest = [{application, erlang:binary_to_atom(rebar_app_info:name(App), unicode)}
|| App <- ProjectApps],
case handle_results(eunit:test(AppsToTest, EUnitOpts)) of
{error, Reason} ->
{error, {?MODULE, Reason}};
ok ->
{ok, State}
end.
-spec format_error(any()) -> iolist().
format_error(unknown_error) ->
io_lib:format("Error running tests", []);
format_error({error_running_tests, Reason}) ->
io_lib:format("Error running tests: ~p", [Reason]).
eunit_opts(_State) ->
[{outdir, $o, "outdir", string, help(outdir)},
{verbose, $v, "verbose", boolean, help(verbose)}].
help(outdir) -> "Output directory for EUnit compiled modules";
help(verbose) -> "Verbose output".
transform_opts(Opts, State) -> transform_opts(Opts, State, []).
transform_opts([], _State, Acc) -> Acc;
transform_opts([{outdir, Path}|Rest], State, Acc) ->
NewAcc = case filename:pathtype(Path) of
absolute -> [{outdir, Path}] ++ Acc;
_ -> [{outdir, filename:join([rebar_state:dir(State), Path])}] ++ Acc
end,
transform_opts(Rest, State, NewAcc);
transform_opts([{Key, Val}|Rest], State, Acc) ->
transform_opts(Rest, State, [{Key, Val}|Acc]).
test_opts(State, TmpDir) ->
ErlOpts = rebar_state:get(State, eunit_compile_opts, []) ++
rebar_utils:erl_opts(State),
TestOpts = [{outdir, TmpDir}] ++
add_test_dir(ErlOpts) ++
safe_define_test_macro(ErlOpts),
rebar_state:set(State, erl_opts, TestOpts).
add_test_dir(Opts) ->
%% if no src_dirs are set we have to specify `src` or it won't
%% be built
case proplists:append_values(src_dirs, Opts) of
[] -> [{src_dirs, ["src", "test"]}];
_ -> [{src_dirs, ["test"]}]
end.
safe_define_test_macro(Opts) ->
%% defining a compile macro twice results in an exception so
%% make sure 'TEST' is only defined once
case test_defined(Opts) of
true -> Opts;
false -> [{d, 'TEST'}] ++ Opts
end.
test_defined([{d, 'TEST'}|_]) -> true;
test_defined([{d, 'TEST', true}|_]) -> true;
test_defined([_|Rest]) -> test_defined(Rest);
test_defined([]) -> false.
first_files(State) ->
BaseFirst = rebar_state:get(State, erl_first_files, []),
EUnitFirst = rebar_state:get(State, eunit_first_files, []),
rebar_state:set(State, erl_first_modules, BaseFirst ++ EUnitFirst).
resolve_eunit_opts(State, Opts) ->
EUnitOpts = rebar_state:get(State, eunit_opts, []),
case lists:member({verbose, true}, Opts) of
true -> set_verbose(EUnitOpts);
false -> EUnitOpts
end.
set_verbose(Opts) ->
case lists:member(verbose, Opts) of
true -> Opts;
false -> [verbose] ++ Opts
end.
handle_results(ok) -> ok;
handle_results(error) ->
{error, unknown_error};
handle_results({error, Reason}) ->
{error, {error_running_tests, Reason}}.
|
