1 files changed, 45 insertions, 57 deletions

diff --git a/lib/stdlib/test/random_SUITE.erl b/lib/stdlib/test/random_SUITE.erl
index 738f73ae15..34b350e132 100644
--- a/lib/stdlib/test/random_SUITE.erl
+++ b/lib/stdlib/test/random_SUITE.erl
@@ -19,26 +19,23 @@
 
 -module(random_SUITE).
 -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, 
+	 init_per_testcase/2, end_per_testcase/2,
 	 init_per_group/2,end_per_group/2]).
 
 -export([interval_1/1, seed0/1, seed/1]).
 
--export([init_per_testcase/2, end_per_testcase/2]).
 
--include_lib("test_server/include/test_server.hrl").
-
-% Default timetrap timeout (set in init_per_testcase).
--define(default_timeout, ?t:minutes(1)).
+-include_lib("common_test/include/ct.hrl").
 
 init_per_testcase(_Case, Config) ->
-    ?line Dog = ?t:timetrap(?default_timeout),
-    [{watchdog, Dog} | Config].
-end_per_testcase(_Case, Config) ->
-    Dog = ?config(watchdog, Config),
-    test_server:timetrap_cancel(Dog),
+    Config.
+
+end_per_testcase(_Case, _Config) ->
     ok.
 
-suite() -> [{ct_hooks,[ts_install_cth]}].
+suite() ->
+    [{ct_hooks,[ts_install_cth]},
+     {timetrap,{minutes,1}}].
 
 all() -> 
     [interval_1, seed0, seed].
@@ -59,59 +56,50 @@ end_per_group(_GroupName, Config) ->
     Config.
 
 
-seed0(doc) ->
-    ["Test that seed is set implicitly, and always the same."];
-seed0(suite) ->
-    [];
+%% Test that seed is set implicitly, and always the same.
 seed0(Config) when is_list(Config) ->
-    ?line Self = self(),
-    ?line _ = spawn(fun() -> Self ! random:uniform() end),
-    ?line F1 = receive
-		   Fa -> Fa
-	  end,
-    ?line _ = spawn(fun() -> random:seed(),
-			     Self ! random:uniform() end),
-    ?line F2 = receive
-		   Fb -> Fb
-	       end,
-    ?line F1 = F2,
+    Self = self(),
+    _ = spawn(fun() -> Self ! random:uniform() end),
+    F1 = receive
+	     Fa -> Fa
+	 end,
+    _ = spawn(fun() -> random:seed(),
+		       Self ! random:uniform() end),
+    F2 = receive
+	     Fb -> Fb
+	 end,
+    F1 = F2,
     ok.
 
-seed(doc) ->
-    ["Test that seed/1 and seed/3 is equivalent."];
-seed(suite) ->
-    [];
+%% Test that seed/1 and seed/3 are equivalent.
 seed(Config) when is_list(Config) ->
-    ?line Self = self(),
+    Self = self(),
     Seed = {S1, S2, S3} = erlang:timestamp(),
-    ?line _ = spawn(fun() ->
-    	random:seed(S1,S2,S3),
-    	Rands = lists:foldl(fun
-	    (_, Out) -> [random:uniform(10000)|Out]
-	end, [], lists:seq(1,100)),
-    	Self ! {seed_test, Rands}
-    end),
-    ?line Rands1 = receive {seed_test, R1s} -> R1s end,
-    ?line _ = spawn(fun() ->
-    	random:seed(Seed),
-    	Rands = lists:foldl(fun
-	    (_, Out) -> [random:uniform(10000)|Out]
-	end, [], lists:seq(1,100)),
-    	Self ! {seed_test, Rands}
-    end),
-    ?line Rands2 = receive {seed_test, R2s} -> R2s end,
-    ?line Rands1 = Rands2,
+    _ = spawn(fun() ->
+		      random:seed(S1,S2,S3),
+		      Rands = lists:foldl(fun
+					      (_, Out) -> [random:uniform(10000)|Out]
+					 end, [], lists:seq(1,100)),
+		      Self ! {seed_test, Rands}
+	      end),
+    Rands1 = receive {seed_test, R1s} -> R1s end,
+    _ = spawn(fun() ->
+		      random:seed(Seed),
+		      Rands = lists:foldl(fun
+					      (_, Out) -> [random:uniform(10000)|Out]
+					 end, [], lists:seq(1,100)),
+		      Self ! {seed_test, Rands}
+	      end),
+    Rands2 = receive {seed_test, R2s} -> R2s end,
+    Rands1 = Rands2,
     ok.
 
 
-interval_1(doc) ->
-    ["Check that uniform/1 returns values within the proper interval."];
-interval_1(suite) ->
-    [];
+%% Check that uniform/1 returns values within the proper interval.
 interval_1(Config) when is_list(Config) ->
-    ?line Top = 7,
-    ?line N = 10,
-    ?line check_interval(N, Top),
+    Top = 7,
+    N = 10,
+    check_interval(N, Top),
     ok.
 
 check_interval(0, _) -> ok;
@@ -119,9 +107,9 @@ check_interval(N, Top) ->
     X = random:uniform(Top),
     if
 	X < 1 ->
-	    test_server:fail(too_small);
+	    ct:fail(too_small);
 	X > Top ->
-	    test_server:fail(too_large);
+	    ct:fail(too_large);
 	true ->
 	    ok
     end,