test_hash.rb: refine a test

* test/ruby/test_hash.rb (test_exception_in_rehash): do not run twice
  since this test does not use @cls.  making a hash may increase
  memory usage and should be in preparation.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@45315 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 3 insertions, 1 deletions

diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb
index 6ef817d0c2..7cf5b8a98d 100644
--- a/test/ruby/test_hash.rb
+++ b/test/ruby/test_hash.rb
@@ -1208,6 +1208,8 @@ class TestHash < Test::Unit::TestCase
   end
 
   def test_exception_in_rehash
+    return unless @cls == Hash
+
     bug9187 = '[ruby-core:58728] [Bug #9187]'
 
     prepare = <<-EOS
@@ -1222,10 +1224,10 @@ class TestHash < Test::Unit::TestCase
         return 0
       end
     end
+    h = {Foo.new => true}
     EOS
 
     code = <<-EOS
-    h = {Foo.new => true}
     10_0000.times do
       h.rehash rescue nil
     end