1 files changed, 5 insertions, 1 deletions
diff --git a/test/ruby/test_io_buffer.rb b/test/ruby/test_io_buffer.rb
index 2204c3db09..70070e93c9 100644
--- a/test/ruby/test_io_buffer.rb
+++ b/test/ruby/test_io_buffer.rb
@@ -330,6 +330,10 @@ class TestIOBuffer < Test::Unit::TestCase
   end
 
   def test_read
+    # This is currently a bug in IO:Buffer [#19084] which affects extended
+    # strings. On 32 bit machines, the example below becomes extended, so
+    # we omit this test until the bug is fixed.
+    omit if GC::INTERNAL_CONSTANTS[:SIZE_POOL_COUNT] == 1
     io = Tempfile.new
     io.write("Hello World")
     io.seek(0)
@@ -339,7 +343,7 @@ class TestIOBuffer < Test::Unit::TestCase
 
     assert_equal "Hello", buffer.get_string(0, 5)
   ensure
-    io.close!
+    io.close! if io
   end
 
   def test_write