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-rw-r--r--bootstraptest/test_knownbug.rb13
1 files changed, 13 insertions, 0 deletions
diff --git a/bootstraptest/test_knownbug.rb b/bootstraptest/test_knownbug.rb
index 39dc6a9b8b..b189f8beb5 100644
--- a/bootstraptest/test_knownbug.rb
+++ b/bootstraptest/test_knownbug.rb
@@ -2,3 +2,16 @@
# This test file concludes tests which point out known bugs.
# So all tests will cause failure.
#
+
+assert_equal 'ok', %q{
+begin
+ r, w = IO.pipe
+ w.close
+ # assert_raise(IOError, "[ruby-dev:31650]") { 20000.times { r.ungetc "a" } }
+ 20000.times { r.ungetc "a" }
+rescue IOError
+ :ok
+ensure
+ r.close
+end
+}, 'rename test/ruby/test_io.rb#_test_ungetc if fixed'