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-rw-r--r--test/ruby/test_iseq.rb27
1 files changed, 27 insertions, 0 deletions
diff --git a/test/ruby/test_iseq.rb b/test/ruby/test_iseq.rb
index 4f7616a..7af8c1b 100644
--- a/test/ruby/test_iseq.rb
+++ b/test/ruby/test_iseq.rb
@@ -185,4 +185,31 @@ class TestISeq < Test::Unit::TestCase
labels = body.select {|op, arg| op == :branchnil}.map {|op, arg| arg}
assert_equal(1, labels.uniq.size)
end
+
+ def test_parent_iseq_mark
+ assert_separately([], <<-'end;')
+ ->{
+ ->{
+ ->{
+ eval <<-EOS
+ class Segfault
+ define_method :segfault do
+ x = nil
+ GC.disable
+ 1000.times do |n|
+ n.times do
+ x = (foo rescue $!).local_variables
+ end
+ GC.start
+ end
+ x
+ end
+ end
+ EOS
+ }.call
+ }.call
+ }.call
+ at_exit { assert_equal([:n, :x], Segfault.new.segfault.sort) }
+ end;
+ end
end