test/unit/bio/io/flatfile/test_buffer.rb in bio-1.4.3.0001 vs test/unit/bio/io/flatfile/test_buffer.rb in bio-1.5.0

@@ -182,10 +182,16 @@
       Bio::FlatFile::BufferedInputStream.open_file(TestDataFastaFormat01) do |obj|
         assert_instance_of(Bio::FlatFile::BufferedInputStream, obj)
         assert_equal(TestDataFastaFormat01, obj.path)
         obj2 = obj
       end
-      assert_raise(IOError) { obj2.close }
+      # Since Ruby 2.3.0, calling IO#close to closed IO object is allowed
+      # without error.
+      if RUBY_VERSION >= "2.3.0"
+        assert_nothing_raised { obj2.close }
+      else
+        assert_raise(IOError) { obj2.close }
+      end
     end
   end #class TestBufferedInputStreamClassMethod
 
   class TestBufferedInputStream < Test::Unit::TestCase
     def setup