Merge pull request #441 from mremond/test/#438/run-elixir-tests

Support for running Elixir ExUnit tests from Common Test

test/elixir_SUITE.erl

@@ -0,0 +1,57 @@
+%%%-------------------------------------------------------------------
+%%% @author Mickael Remond <mremond@process-one.net>
+%%% @copyright (C) 2002-2015, ProcessOne
+%%% @doc
+%%% This is a common test wrapper to run our ejabberd tests written in
+%%% Elixir from standard common test code.
+%%%
+%%% Example: Is run with:
+%%%     ./rebar skip_deps=true ct suites=elixir
+%%% or from ejabber overall test suite:
+%%%     make test
+%%% @end
+%%% Created :  19 Feb 2015 by Mickael Remond <mremond@process-one.net>
+%%%-------------------------------------------------------------------
+
+-module(elixir_SUITE).
+
+-compile(export_all).
+
+init_per_testcase(_TestCase, Config) ->
+    process_flag(error_handler, ?MODULE),
+    Config.
+
+all() ->
+    case is_elixir_available() of
+        true ->
+            Dir = test_dir(),
+            filelib:fold_files(Dir, ".*\.exs", false,
+                               fun(Filename, Acc) -> [list_to_atom(filename:basename(Filename)) | Acc] end,
+                               []);
+        false ->
+            []
+    end.
+
+is_elixir_available() ->
+    case catch elixir:module_info() of
+        {'EXIT',{undef,_}} ->
+            false;
+        ModInfo when is_list(ModInfo) ->
+            true
+    end.
+
+undefined_function(?MODULE, Func, Args) ->
+    case lists:suffix(".exs", atom_to_list(Func)) of
+        true ->            
+            'Elixir.ExUnit':start([]),
+            'Elixir.Code':load_file(list_to_binary(filename:join(test_dir(), atom_to_list(Func)))),
+            'Elixir.ExUnit':run();
+        false ->
+            error_handler:undefined_function(?MODULE, Func, Args)
+    end;
+undefined_function(Module, Func, Args) ->
+    error_handler:undefined_function(Module, Func,Args).
+
+test_dir() ->
+    {ok, CWD} = file:get_cwd(),
+    filename:join(CWD, "../../test").