1 files changed, 10 insertions, 1 deletions
diff --git a/test/ruby/test_thread.rb b/test/ruby/test_thread.rb
index 4e53b7fa86..4089eb67a4 100644
--- a/test/ruby/test_thread.rb
+++ b/test/ruby/test_thread.rb
@@ -384,7 +384,7 @@ class TestThread < Test::Unit::TestCase
       end
     INPUT
 
-    assert_in_out_err(%w(--disable-gems -d), <<-INPUT, %w(false 2), /.+/)
+    assert_in_out_err(%w(--disable-gems -d), <<-INPUT, %w(false 2), %r".+")
       p Thread.abort_on_exception
       begin
         Thread.new { raise }
@@ -577,6 +577,15 @@ class TestThread < Test::Unit::TestCase
     assert_nothing_raised {arr.hash}
     assert(obj[:visited])
   end
+
+  def test_thread_instance_variable
+    bug4389 = '[ruby-core:35192]'
+    assert_in_out_err([], <<-INPUT, %w(), [], bug4389)
+      class << Thread.current
+        @data = :data
+      end
+    INPUT
+  end
 end
 
 class TestThreadGroup < Test::Unit::TestCase