1 files changed, 3 insertions, 0 deletions
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 3c5dc7671a..0c81f4cb82 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -2240,6 +2240,9 @@ class TestIO < Test::Unit::TestCase
     assert_raise(Errno::ENOENT, Errno::EINVAL) do
       Class.new(IO).binread("|#{EnvUtil.rubybin} -e puts")
     end
+    assert_raise(Errno::ESPIPE) do
+      IO.read("|echo foo", 1, 1)
+    end
   end
 
   def test_reopen