Suppress uninitialized instance variable warnings

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66391 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2018-12-14 01:29:23 +00:00 · 2018-12-14 01:29:23 +00:00 · 65dd1434b3
commit 65dd1434b3
parent e4c79d0d10
1 changed files with 1 additions and 1 deletions
--- a/test/io/console/test_io_console.rb
+++ b/test/io/console/test_io_console.rb
@ -14,7 +14,7 @@ class TestIO_Console < Test::Unit::TestCase
  end

  def set_winsize_teardown
-    trap(:TTOU, @old_ttou) if @old_ttou
+    trap(:TTOU, @old_ttou) if defined?(@old_ttou) and @old_ttou
  end
 end