Make sure that eunit/qc_compile_opts works fix #245

THANKS

@@ -122,3 +122,4 @@ Oliver Ferrigni
 Dave Thomas
 Evgeniy Khramtsov
 YeJun Su
+Yuki Ito

inttest/eunit/eunit_rt.erl

@@ -0,0 +1,48 @@
+-module(eunit_rt).
+-export([files/0, run/1]).
+
+-include_lib("eunit/include/eunit.hrl").
+
+files() ->
+    [{create, "ebin/foo.app", app(foo)},
+     {copy, "../../rebar", "rebar"},
+     {copy, "src", "src"},
+     {copy, "eunit_src", "eunit_src"},
+     {copy,
+      "rebar-eunit_compile_opts.config",
+      "rebar-eunit_compile_opts.config"}].
+
+run(_Dir) ->
+    ifdef_test(),
+    eunit_compile_opts_test(),
+    ok.
+
+ifdef_test() ->
+    {ok, Output} = retest:sh("./rebar -v eunit"),
+    ?assert(check_output(Output, "foo_test")),
+    ?assertMatch({ok, _}, retest:sh("./rebar clean")).
+
+eunit_compile_opts_test() ->
+    {ok, Output} =
+        retest:sh("./rebar -v -C rebar-eunit_compile_opts.config eunit"),
+    ?assert(check_output(Output, "bar_test")),
+    ?assertMatch(
+       {ok, _},
+       retest:sh("./rebar -C rebar-eunit_compile_opts.config clean")).
+
+check_output(Output, Target) ->
+    lists:any(fun(Line) ->
+                      string:str(Line, Target) > 0
+              end, Output).
+
+%%
+%% Generate the contents of a simple .app file
+%%
+app(Name) ->
+    App = {application, Name,
+           [{description, atom_to_list(Name)},
+            {vsn, "1"},
+            {modules, []},
+            {registered, []},
+            {applications, [kernel, stdlib]}]},
+    io_lib:format("~p.\n", [App]).

inttest/eunit/eunit_src/bar.erl

@@ -0,0 +1,6 @@
+-module(bar).
+
+-include_lib("eunit/include/eunit.hrl").
+
+bar_test() ->
+    ?assert(true).

inttest/eunit/rebar-eunit_compile_opts.config

@@ -0,0 +1 @@
+{eunit_compile_opts, [{src_dirs, ["eunit_src"]}]}.

inttest/eunit/src/foo.erl

@@ -0,0 +1,10 @@
+-module(foo).
+
+-ifdef(TEST).
+
+-include_lib("eunit/include/eunit.hrl").
+
+foo_test() ->
+    ?assert(true).
+
+-endif.

src/rebar_erlc_compiler.erl

@@ -134,12 +134,13 @@ test_compile(Config, Cmd, OutDir) ->
     %% Obtain all the test modules for inclusion in the compile stage.
     TestErls = rebar_utils:find_files("test", ".*\\.erl\$"),
 
+    ErlOpts = rebar_utils:erl_opts(Config),
+    {Config1, ErlOpts1} = test_compile_config_and_opts(Config, ErlOpts, Cmd),
+
     %% Copy source files to eunit dir for cover in case they are not directly
     %% in src but in a subdirectory of src. Cover only looks in cwd and ../src
     %% for source files. Also copy files from src_dirs.
-    ErlOpts = rebar_utils:erl_opts(Config),
-
-    SrcDirs = rebar_utils:src_dirs(proplists:append_values(src_dirs, ErlOpts)),
+    SrcDirs = rebar_utils:src_dirs(proplists:append_values(src_dirs, ErlOpts1)),
     SrcErls = lists:foldl(
                 fun(Dir, Acc) ->
                         Files = rebar_utils:find_files(Dir, ".*\\.erl\$"),
@@ -172,8 +173,7 @@ test_compile(Config, Cmd, OutDir) ->
     %% Compile erlang code to OutDir, using a tweaked config
     %% with appropriate defines for eunit, and include all the test modules
     %% as well.
-    ok = doterl_compile(test_compile_config(Config, ErlOpts, Cmd),
-                        OutDir, TestErls, ErlOpts),
+    ok = doterl_compile(Config1, OutDir, TestErls, ErlOpts1),
 
     {ok, SrcErls}.
 
@@ -217,21 +217,22 @@ info_help(Description) ->
         {yrl_first_files, []}
        ]).
 
-test_compile_config(Config, ErlOpts, Cmd) ->
+test_compile_config_and_opts(Config, ErlOpts, Cmd) ->
     {Config1, TriqOpts} = triq_opts(Config),
     {Config2, PropErOpts} = proper_opts(Config1),
     {Config3, EqcOpts} = eqc_opts(Config2),
 
     OptsAtom = list_to_atom(Cmd ++ "_compile_opts"),
-    EunitOpts = rebar_config:get_list(Config3, OptsAtom, []),
+    TestOpts = rebar_config:get_list(Config3, OptsAtom, []),
     Opts0 = [{d, 'TEST'}] ++
-        ErlOpts ++ EunitOpts ++ TriqOpts ++ PropErOpts ++ EqcOpts,
+        ErlOpts ++ TestOpts ++ TriqOpts ++ PropErOpts ++ EqcOpts,
     Opts = [O || O <- Opts0, O =/= no_debug_info],
     Config4 = rebar_config:set(Config3, erl_opts, Opts),
 
     FirstFilesAtom = list_to_atom(Cmd ++ "_first_files"),
     FirstErls = rebar_config:get_list(Config4, FirstFilesAtom, []),
-    rebar_config:set(Config4, erl_first_files, FirstErls).
+    Config5 = rebar_config:set(Config4, erl_first_files, FirstErls),
+    {Config5, Opts}.
 
 triq_opts(Config) ->
     {NewConfig, IsAvail} = is_lib_avail(Config, is_triq_avail, triq,