Merge branch 'sverk/better-module-info'

OTP-11940

* sverk/better-module-info:
  Remove obsolete 'imports' entry from module_info/1/2 functions
  Add 'module' entry for module_info/0 function for completeness
  Add 'md5' entry for module_info/0/1 functions.

1 files changed, 19 insertions, 3 deletions

diff --git a/erts/emulator/test/module_info_SUITE.erl b/erts/emulator/test/module_info_SUITE.erl
index 8a63d9fe3e..f3986f0c4f 100644
--- a/erts/emulator/test/module_info_SUITE.erl
+++ b/erts/emulator/test/module_info_SUITE.erl
@@ -24,7 +24,7 @@
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
 	 init_per_group/2,end_per_group/2,
 	 init_per_testcase/2,end_per_testcase/2,
-	 exports/1,functions/1,native/1]).
+	 exports/1,functions/1,native/1,info/1]).
 
 %%-compile(native).
 
@@ -52,8 +52,8 @@ end_per_group(_GroupName, Config) ->
     Config.
 
 
-modules() -> 
-    [exports, functions, native].
+modules() ->
+    [exports, functions, native, info].
 
 init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
     Dog = ?t:timetrap(?t:minutes(3)),
@@ -122,6 +122,22 @@ native_proj({Name,Arity,Addr}) ->
 native_filter(Set) ->
     sofs:no_elements(Set) =/= 1.
 
+%% Test that the module info of this module is correct. Use
+%% erlang:get_module_info(?MODULE) to avoid compiler optimization tricks.
+info(Config) when is_list(Config) ->
+    Info = erlang:get_module_info(?MODULE),
+    All = all_exported(),
+    {ok,{?MODULE,MD5}} = beam_lib:md5(code:which(?MODULE)),
+    {module, ?MODULE} = lists:keyfind(module, 1, Info),
+    {md5, MD5} = lists:keyfind(md5, 1, Info),
+    {exports, Exports} = lists:keyfind(exports, 1, Info),
+    All = lists:sort(Exports),
+    {attributes, Attrs} = lists:keyfind(attributes, 1, Info),
+    {vsn,_} = lists:keyfind(vsn, 1, Attrs),
+    {compile, Compile} = lists:keyfind(compile, 1, Info),
+    {options,_} = lists:keyfind(options, 1, Compile),
+    ok.
+
 %% Helper functions (local).
 
 add_arity(L) ->