diff --git a/ChangeLog b/ChangeLog
index d1189145ab..67e93a6c71 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,7 @@
-Mon Sep 12 12:40:44 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+Mon Sep 12 12:42:36 2011  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* test/ruby/test_exception.rb (TestException#test_exit_success_p):
+	  assert also the cases when exiting with true and false.
 
 	* lib/test/unit/assertions.rb (assert_send): make arguments in
 	  the default message clearer.
diff --git a/test/ruby/test_exception.rb b/test/ruby/test_exception.rb
index a26ade075b..52dd4665a1 100644
--- a/test/ruby/test_exception.rb
+++ b/test/ruby/test_exception.rb
@@ -296,13 +296,25 @@ end.join
       exit
     rescue SystemExit => e
     end
-    assert(e.success?)
+    assert_send([e, :success?], "success by default")
+
+    begin
+      exit(true)
+    rescue SystemExit => e
+    end
+    assert_send([e, :success?], "true means success")
+
+    begin
+      exit(false)
+    rescue SystemExit => e
+    end
+    assert_not_send([e, :success?], "false means failure")
 
     begin
       abort
     rescue SystemExit => e
     end
-    assert(!e.success?)
+    assert_not_send([e, :success?], "abort means failure")
   end
 
   def test_nomethoderror