Prohibit circular causes [Bug #15447]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66510 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 5 deletions

diff --git a/test/ruby/test_exception.rb b/test/ruby/test_exception.rb
index a868279de8..05c74f6dcd 100644
--- a/test/ruby/test_exception.rb
+++ b/test/ruby/test_exception.rb
@@ -1352,14 +1352,11 @@ $stderr = $stdout; raise "\x82\xa0"') do |outs, errs, status|
   end
 
   def test_circular_cause_handle
-    errs = [/.*error 1.*\n/, /.*error 2.*\n/, /.*error 1.*/m]
-    assert_in_out_err([], "#{<<~"begin;"}\n#{<<~'end;'}", [], errs, success: false, timeout: 2)
-    begin;
+    assert_raise_with_message(ArgumentError, /circular cause/) do
       begin
         raise "error 1"
       rescue => e1
-        raise "error 2" rescue e2 = $!
-        raise e1, cause: e2
+        raise "error 2" rescue raise e1, cause: $!
       end
     end;
   end