compiler: Run testcases in parallel

Run testcases in parallel will make the test suite run slightly
faster. Another reason for this change is that we want more testing
of parallel testcase support in common_test.

1 files changed, 11 insertions, 8 deletions

diff --git a/lib/compiler/test/error_SUITE.erl b/lib/compiler/test/error_SUITE.erl
index e798023cd8..859c4571ea 100644
--- a/lib/compiler/test/error_SUITE.erl
+++ b/lib/compiler/test/error_SUITE.erl
@@ -32,10 +32,11 @@ suite() -> [{ct_hooks,[ts_install_cth]}].
 
 all() -> 
     test_lib:recompile(?MODULE),
-    [head_mismatch_line, warnings_as_errors, bif_clashes, transforms].
+    [{group,p}].
 
 groups() -> 
-    [].
+    [{p,test_lib:parallel(),
+      [head_mismatch_line,warnings_as_errors,bif_clashes,transforms]}].
 
 init_per_suite(Config) ->
     Config.
@@ -282,12 +283,14 @@ filter(X) ->
 %% Compiles a test module and returns the list of errors and warnings.
 
 test_filename(Conf) ->
-    Filename = "errors_test.erl",
+    Filename = ["errors_test_",test_lib:uniq(),".erl"],
     DataDir = ?config(priv_dir, Conf),
     filename:join(DataDir, Filename).
 
 run_test(Test0, File, Warnings, WriteBeam) ->
-    ?line Test = ["-module(errors_test). ", Test0],
+    ModName = filename:rootname(filename:basename(File), ".erl"),
+    Mod = list_to_atom(ModName),
+    Test = ["-module(",ModName,"). ",Test0],
     ?line Opts = case WriteBeam of
 		     dont_write_beam ->
 			 [binary,return_errors|Warnings];
@@ -301,17 +304,17 @@ run_test(Test0, File, Warnings, WriteBeam) ->
 
     %% Test result of compilation.
     ?line Res = case compile:file(File, Opts) of
-		    {ok,errors_test,_,[{_File,Ws}]} ->
+		    {ok,Mod,_,[{_File,Ws}]} ->
 			%io:format("compile:file(~s,~p) ->~n~p~n",
 			%	  [File,Opts,Ws]),
 			{warning,Ws};
-		    {ok,errors_test,_,[]} ->
+		    {ok,Mod,_,[]} ->
 			%io:format("compile:file(~s,~p) ->~n~p~n",
 			%	  [File,Opts,Ws]),
 			[];
-		    {ok,errors_test,[{_File,Ws}]} ->
+		    {ok,Mod,[{_File,Ws}]} ->
 			{warning,Ws};
-		    {ok,errors_test,[]} ->
+		    {ok,Mod,[]} ->
 			[];
 		    {error,[{XFile,Es}],Ws} = _ZZ when is_list(XFile) ->
 			%io:format("compile:file(~s,~p) ->~n~p~n",