erts: Test compatibility of funs with R12 instead of R11

1 files changed, 75 insertions, 0 deletions

diff --git a/erts/emulator/test/fun_r12_SUITE.erl b/erts/emulator/test/fun_r12_SUITE.erl
new file mode 100644
index 0000000000..f21299ba67
--- /dev/null
+++ b/erts/emulator/test/fun_r12_SUITE.erl
@@ -0,0 +1,75 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2007-2010. All Rights Reserved.
+%%
+%% The contents of this file are subject to the Erlang Public License,
+%% Version 1.1, (the "License"); you may not use this file except in
+%% compliance with the License. You should have received a copy of the
+%% Erlang Public License along with this software. If not, it can be
+%% retrieved online at http://www.erlang.org/.
+%%
+%% Software distributed under the License is distributed on an "AS IS"
+%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
+%% the License for the specific language governing rights and limitations
+%% under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(fun_r12_SUITE).
+
+-export([all/1,init_per_testcase/2,fin_per_testcase/2,dist_old_release/1]).
+
+-define(default_timeout, ?t:minutes(1)).
+-include("test_server.hrl").
+
+all(suite) -> [dist_old_release].
+
+init_per_testcase(_Case, Config) ->
+    ?line Dog = test_server:timetrap(?default_timeout),
+    [{watchdog, Dog}|Config].
+
+fin_per_testcase(_Case, Config) ->
+    Dog=?config(watchdog, Config),
+    test_server:timetrap_cancel(Dog),
+    ok.
+
+dist_old_release(Config) when is_list(Config) ->
+    case ?t:is_release_available("r12b") of
+	true -> do_dist_old(Config);
+	false -> {skip,"No R12B found"}
+    end.
+
+do_dist_old(Config) when is_list(Config) ->
+    ?line Pa = filename:dirname(code:which(?MODULE)),
+    Name = fun_dist_r12,
+    ?line {ok,Node} = ?t:start_node(Name, peer,
+				    [{args,"-pa "++Pa},
+				     {erl,[{release,"r12b"}]}]),
+
+    ?line Pid = spawn_link(Node,
+			   fun() ->
+				   receive
+				       Fun when is_function(Fun) ->
+					   R12BFun = fun(H) -> cons(H, [b,c]) end,
+					   Fun(Fun, R12BFun)
+				   end
+			   end),
+    Self = self(),
+    Fun = fun(F, R12BFun) ->
+		  {pid,Self} = erlang:fun_info(F, pid),
+		  {module,?MODULE} = erlang:fun_info(F, module),
+		  Self ! {ok,F,R12BFun}
+	  end,
+    ?line Pid ! Fun,
+    ?line receive
+	      {ok,Fun,R12BFun} ->
+		  ?line [a,b,c] = R12BFun(a);
+	      Other ->
+		  ?line ?t:fail({bad_message,Other})
+	  end,
+    ok.
+
+cons(H, T) ->
+    [H|T].