Fix for 63583 error on windows
diff --git a/test/io/console/test_io_console.rb b/test/io/console/test_io_console.rb
index 73c97a6ceb..980bcdacc2 100644
--- a/test/io/console/test_io_console.rb
+++ b/test/io/console/test_io_console.rb
@@ -335,7 +335,7 @@ def test_get_winsize_console
     end
 
     def test_set_winsize_console
-      set_winsize_setup
+      set_winsize_setup if respond_to?(:set_winsize_setup)
       s = IO.console.winsize
       assert_nothing_raised(TypeError) {IO.console.winsize = s}
       bug = '[ruby-core:82741] [Bug #13888]'
@@ -344,7 +344,7 @@ def test_set_winsize_console
       IO.console.winsize = s
       assert_equal(s, IO.console.winsize, bug)
     ensure
-      set_winsize_teardown
+      set_winsize_teardown if respond_to?(:set_winsize_teardown) 
     end
 
     def test_close