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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)},
{profiles, [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),
TestApps = filter_checkouts(rebar_state:project_apps(State)),
OutDir = proplists:get_value(outdir, Opts, default_test_dir(State)),
?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_state(S, OutDir)),
ok = rebar_erlc_compiler:compile(TestState, AppDir)
end, TestApps),
ok = maybe_compile_extra_tests(TestApps, State, OutDir),
Path = code:get_path(),
true = code:add_patha(OutDir),
EUnitOpts = resolve_eunit_opts(State, Opts),
AppsToTest = [{application, erlang:binary_to_atom(rebar_app_info:name(App), unicode)}
|| App <- TestApps],
Result = eunit:test(AppsToTest, EUnitOpts),
true = code:set_path(Path),
case handle_results(Result) 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]).
filter_checkouts(Apps) -> filter_checkouts(Apps, []).
filter_checkouts([], Acc) -> lists:reverse(Acc);
filter_checkouts([App|Rest], Acc) ->
AppDir = filename:absname(rebar_app_info:dir(App)),
CheckoutsDir = filename:absname("_checkouts"),
case lists:prefix(CheckoutsDir, AppDir) of
true -> filter_checkouts(Rest, Acc);
false -> filter_checkouts(Rest, [App|Acc])
end.
default_test_dir(State) ->
Tmp = case erlang:system_info(system_architecture) of
"win32" ->
"./tmp";
_SysArch ->
"/tmp"
end,
Root = filename:join([rebar_state:dir(State), Tmp]),
Project = filename:basename(rebar_state:dir(State)),
OutDir = filename:join([Root, Project ++ "_rebar3_eunit"]),
%% delete the directory if it exists so tests run with clean state
_ = ec_file:remove(OutDir, [recursive]),
%% recreate the directory
ok = filelib:ensure_dir(filename:join([OutDir, "dummy.beam"])),
OutDir.
test_state(State, TmpDir) ->
ErlOpts = rebar_state:get(State, eunit_compile_opts, []) ++
rebar_utils:erl_opts(State),
ErlOpts1 = [{outdir, TmpDir}] ++
add_test_dir(ErlOpts),
TestOpts = safe_define_test_macro(ErlOpts1),
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"]}];
Srcs -> [{src_dirs, ["test"|Srcs]}]
end ++ lists:keydelete(src_dirs, 1, Opts).
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.
maybe_compile_extra_tests(TestApps, State, OutDir) ->
F = fun(App) -> rebar_app_info:dir(App) == rebar_dir:get_cwd() end,
case lists:filter(F, TestApps) of
%% compile just the `test` and extra test directories of the base dir
[] ->
ErlOpts = rebar_state:get(State, common_test_compile_opts, []) ++
rebar_utils:erl_opts(State),
TestOpts = [{outdir, OutDir}] ++
[{src_dirs, ["test"]}] ++
safe_define_test_macro(lists:keydelete(src_dirs, 1, ErlOpts)),
TestState = first_files(rebar_state:set(State, erl_opts, TestOpts)),
rebar_erlc_compiler:compile(TestState, rebar_dir:get_cwd());
%% already compiled `./test` so do nothing
_ -> ok
end.
handle_results(ok) -> ok;
handle_results(error) ->
{error, unknown_error};
handle_results({error, Reason}) ->
{error, {error_running_tests, Reason}}.
|
