Add initial dialyzer tests

test/rebar_dialyzer_SUITE.erl

@@ -0,0 +1,158 @@
+-module(rebar_dialyzer_SUITE).
+
+-export([suite/0,
+         init_per_suite/1,
+         end_per_suite/1,
+         init_per_testcase/2,
+         all/0,
+         update_base_plt/1,
+         update_app_plt/1,
+         build_release_plt/1]).
+
+-include_lib("common_test/include/ct.hrl").
+-include_lib("eunit/include/eunit.hrl").
+-include_lib("kernel/include/file.hrl").
+
+suite() ->
+    [].
+
+init_per_suite(Config) ->
+    Config.
+
+end_per_suite(_Config) ->
+    ok.
+
+init_per_testcase(Testcase, Config) ->
+    PrivDir = ?config(priv_dir, Config),
+    Prefix = ec_cnv:to_list(Testcase),
+    Plt = filename:join(PrivDir,  Prefix ++ ".project.plt"),
+    BasePlt = Prefix ++ "base.plt",
+    RebarConfig = [{dialyzer_plt, Plt},
+                   {dialyzer_base_plt, BasePlt},
+                   {dialyzer_base_plt_dir, PrivDir},
+                   {dialyzer_base_plt_apps, [erts]}],
+    [{plt, Plt},
+     {base_plt, filename:join(PrivDir, BasePlt)},
+     {rebar_config, RebarConfig} |
+     rebar_test_utils:init_rebar_state(Config)].
+
+all() ->
+    [update_base_plt, update_app_plt, build_release_plt].
+
+update_base_plt(Config) ->
+    AppDir = ?config(apps, Config),
+    RebarConfig = ?config(rebar_config, Config),
+    BasePlt = ?config(base_plt, Config),
+    Plt = ?config(plt, Config),
+
+    Name = rebar_test_utils:create_random_name("app1_"),
+    Vsn = rebar_test_utils:create_random_vsn(),
+    rebar_test_utils:create_app(AppDir, Name, Vsn, [erts]),
+
+    rebar_test_utils:run_and_check(Config, RebarConfig, ["dialyzer"],
+                                   {ok, [{app, Name}]}),
+
+    ErtsFiles = erts_files(),
+
+    {ok, BasePltFiles} = plt_files(BasePlt),
+    ?assertEqual(ErtsFiles, BasePltFiles),
+
+    alter_plt(BasePlt),
+    ok = file:delete(Plt),
+
+    rebar_test_utils:run_and_check(Config, RebarConfig, ["dialyzer"],
+                                   {ok, [{app, Name}]}),
+
+    {ok, BasePltFiles2} = plt_files(BasePlt),
+    ?assertEqual(ErtsFiles, BasePltFiles2),
+
+    {ok, PltFiles} = plt_files(Plt),
+    ?assertEqual(ErtsFiles, PltFiles).
+
+
+update_app_plt(Config) ->
+    AppDir = ?config(apps, Config),
+    RebarConfig = ?config(rebar_config, Config),
+    Plt = ?config(plt, Config),
+
+    Name = rebar_test_utils:create_random_name("app1_"),
+    Vsn = rebar_test_utils:create_random_vsn(),
+    rebar_test_utils:create_app(AppDir, Name, Vsn, [erts]),
+
+    rebar_test_utils:run_and_check(Config, RebarConfig, ["dialyzer"],
+                                   {ok, [{app, Name}]}),
+
+    ErtsFiles = erts_files(),
+
+    {ok, PltFiles} = plt_files(Plt),
+    ?assertEqual(ErtsFiles, PltFiles),
+
+    alter_plt(Plt),
+
+    rebar_test_utils:run_and_check(Config, RebarConfig, ["dialyzer"],
+                                   {ok, [{app, Name}]}),
+
+    {ok, PltFiles2} = plt_files(Plt),
+    ?assertEqual(ErtsFiles, PltFiles2),
+
+    ok = file:delete(Plt),
+
+    rebar_test_utils:run_and_check(Config, RebarConfig, ["dialyzer"],
+                                   {ok, [{app, Name}]}),
+
+    {ok, PltFiles3} = plt_files(Plt),
+    ?assertEqual(ErtsFiles, PltFiles3).
+
+build_release_plt(Config) ->
+    AppDir = ?config(apps, Config),
+    RebarConfig = ?config(rebar_config, Config),
+    BasePlt = ?config(base_plt, Config),
+    Plt = ?config(plt, Config),
+
+    Name1 = rebar_test_utils:create_random_name("relapp1_"),
+    Vsn1 = rebar_test_utils:create_random_vsn(),
+    rebar_test_utils:create_app(filename:join([AppDir,Name1]), Name1, Vsn1,
+                                [erts]),
+    Name2 = rebar_test_utils:create_random_name("relapp2_"),
+    Vsn2 = rebar_test_utils:create_random_vsn(),
+    rebar_test_utils:create_app(filename:join([AppDir,Name2]), Name2, Vsn2,
+                                [erts, ec_cnv:to_atom(Name1)]),
+
+    rebar_test_utils:run_and_check(Config, RebarConfig, ["dialyzer"],
+                                   {ok, [{app, Name1}, {app, Name2}]}),
+
+    ErtsFiles = erts_files(),
+
+    {ok, BasePltFiles} = plt_files(BasePlt),
+    ?assertEqual(ErtsFiles, BasePltFiles),
+
+    {ok, PltFiles} = plt_files(Plt),
+    ?assertEqual(ErtsFiles, PltFiles).
+
+%% Helpers
+
+erts_files() ->
+    ErtsDir = code:lib_dir(erts, ebin),
+    ErtsBeams = filelib:wildcard("*.beam", ErtsDir),
+    ErtsFiles = lists:map(fun(Beam) -> filename:join(ErtsDir, Beam) end,
+                          ErtsBeams),
+    lists:sort(ErtsFiles).
+
+plt_files(Plt) ->
+    case dialyzer:plt_info(Plt) of
+        {ok, Info} ->
+            Files = proplists:get_value(files, Info),
+            {ok, lists:sort(Files)};
+        Other ->
+            Other
+    end.
+
+alter_plt(Plt) ->
+    {ok, Files} = plt_files(Plt),
+    _ = dialyzer:run([{analysis_type, plt_remove},
+                      {init_plt, Plt},
+                      {files, [hd(Files)]}]),
+    _ = dialyzer:run([{analysis_type, plt_add},
+                      {init_plt, Plt},
+                      {files, [code:which(dialyzer)]}]),
+    ok.