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0c94ae048a
In Ruby < 3.0, the superclass of StringIO was actually already `Data`, but it doesn't have the expected shape. So, on these earlier versions it errors: > NoMethodError: undefined method `members' for #<StringIO:0x00005641dd5f2880> > vendor/bundle/ruby/2.6.0/gems/psych-5.2.5/lib/psych/visitors/yaml_tree.rb:170:in `visit_Data' This test doesn't fail on 2.7, presumably because it can pull in a newer `stringio` version. https://github.com/ruby/psych/commit/0f40f56268
15 lines
345 B
Ruby
15 lines
345 B
Ruby
# frozen_string_literal: true
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require_relative 'helper'
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module Psych
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class TestStringIO < TestCase
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# The superclass of StringIO before Ruby 3.0 was `Data`,
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# which can interfere with the Ruby 3.2+ `Data` dumping.
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def test_stringio
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assert_nothing_raised do
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Psych.dump(StringIO.new("foo"))
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end
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end
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end
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end
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