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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),
State2 = rebar_state:add_to_profile(State1, test, test_state(State1)),
{ok, State2}.
-spec do(rebar_state:t()) -> {ok, rebar_state:t()} | {error, string()}.
do(State) ->
?INFO("Performing EUnit tests...", []),
{Opts, _} = rebar_state:command_parsed_args(State),
EUnitOpts = resolve_eunit_opts(State, Opts),
TestApps = filter_checkouts(rebar_state:project_apps(State)),
ok = compile_tests(State, TestApps),
ok = maybe_cover_compile(State, Opts),
AppsToTest = test_dirs(State, TestApps),
Result = eunit:test(AppsToTest, EUnitOpts),
ok = rebar_prv_cover:maybe_write_coverdata(State, ?PROVIDER),
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) ->
[{cover, $c, "cover", boolean, help(cover)},
{verbose, $v, "verbose", boolean, help(verbose)}].
help(cover) -> "Generate cover data";
help(verbose) -> "Verbose output".
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.
resolve_eunit_opts(State, Opts) ->
EUnitOpts = rebar_state:get(State, eunit_opts, []),
case proplists:get_value(verbose, Opts, false) of
true -> set_verbose(EUnitOpts);
false -> EUnitOpts
end.
test_dirs(State, TestApps) ->
%% we need to add "./ebin" if it exists but only if it's not already
%% due to be added
F = fun(App) -> rebar_app_info:dir(App) =/= rebar_dir:get_cwd() end,
BareEbin = filename:join([rebar_dir:base_dir(State), "ebin"]),
case lists:any(F, TestApps) andalso filelib:is_dir(BareEbin) of
false -> application_dirs(TestApps, []);
true -> [{dir, BareEbin}|application_dirs(TestApps, [])]
end.
application_dirs([], Acc) -> lists:reverse(Acc);
application_dirs([App|Rest], Acc) ->
AppName = list_to_atom(binary_to_list(rebar_app_info:name(App))),
application_dirs(Rest, [{application, AppName}|Acc]).
test_state(State) ->
ErlOpts = rebar_state:get(State, eunit_compile_opts, []),
TestOpts = safe_define_test_macro(ErlOpts),
first_files(State) ++ [{erl_opts, TestOpts}].
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) ->
EUnitFirst = rebar_state:get(State, eunit_first_files, []),
[{erl_first_files, EUnitFirst}].
set_verbose(Opts) ->
%% if `verbose` is already set don't set it again
case lists:member(verbose, Opts) of
true -> Opts;
false -> [verbose] ++ Opts
end.
compile_tests(State, TestApps) ->
State1 = replace_src_dirs(State),
F = fun(AppInfo) ->
AppDir = rebar_app_info:dir(AppInfo),
S = case rebar_app_info:state(AppInfo) of
undefined ->
C = rebar_config:consult(AppDir),
rebar_state:new(State1, C, AppDir);
AppState ->
AppState
end,
ok = rebar_erlc_compiler:compile(S,
ec_cnv:to_list(rebar_app_info:dir(AppInfo)),
ec_cnv:to_list(rebar_app_info:out_dir(AppInfo)))
end,
lists:foreach(F, TestApps),
compile_bare_tests(State1, TestApps).
compile_bare_tests(State, TestApps) ->
F = fun(App) -> rebar_app_info:dir(App) == rebar_dir:get_cwd() end,
case lists:filter(F, TestApps) of
%% compile just the `test` directory of the base dir
[] -> rebar_erlc_compiler:compile(State,
rebar_dir:get_cwd(),
rebar_dir:base_dir(State));
%% already compiled `./test` so do nothing
_ -> ok
end.
replace_src_dirs(State) ->
%% replace any `src_dirs` with just the `test` dir
ErlOpts = rebar_state:get(State, erl_opts, []),
StrippedOpts = lists:keydelete(src_dirs, 1, ErlOpts),
rebar_state:set(State, erl_opts, [{src_dirs, ["test"]}|StrippedOpts]).
maybe_cover_compile(State, Opts) ->
State1 = case proplists:get_value(cover, Opts, false) of
true -> rebar_state:set(State, cover_enabled, true);
false -> State
end,
rebar_prv_cover:maybe_cover_compile(State1).
handle_results(ok) -> ok;
handle_results(error) ->
{error, unknown_error};
handle_results({error, Reason}) ->
{error, {error_running_tests, Reason}}.
|
