1 files changed, 39 insertions, 0 deletions
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 6b8e6b58ce..3d086b3750 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -1809,4 +1809,43 @@ End
       Process.waitpid2(pid)
     end
   end
+
+  def test_cross_thread_close_fd
+    with_pipe do |r,w|
+      read_thread = Thread.new do
+        begin
+          r.read(1)
+        rescue => e
+          e
+        end
+      end
+
+      sleep(0.1) until read_thread.stop?
+      r.close
+      read_thread.join
+      assert_kind_of(IOError, read_thread.value)
+    end
+  end
+
+  def test_cross_thread_close_stdio
+    with_pipe do |r,w|
+      pid = fork do
+        $stdin.reopen(r)
+        r.close
+        read_thread = Thread.new do
+          begin
+            $stdin.read(1)
+          rescue => e
+            e
+          end
+        end
+        sleep(0.1) until read_thread.stop?
+        $stdin.close
+        read_thread.join
+        exit(IOError === read_thread.value)
+      end
+      assert Process.waitpid2(pid)[1].success?
+    end
+    rescue NotImplementedError
+  end
 end