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* ext/psych/lib/psych/visitors/yaml_tree.rb: use YAML 1.0 output

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format for serializing nil values.  Thanks Eric Hodel!
* test/psych/test_nil.rb: test for nil values

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@30459 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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tenderlove 2011-01-05 17:57:38 +00:00
parent f86ca53460
commit e9e01ec4a0
3 changed files with 26 additions and 1 deletions
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18
test/psych/test_nil.rb Normal file
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require_relative 'helper'
module Psych
class TestNil < TestCase
def test_nil
yml = Psych.dump nil
assert_equal "--- \n...\n", yml
assert_equal nil, Psych.load(yml)
end
def test_array_nil
yml = Psych.dump [nil]
assert_equal "---\n- \n", yml
assert_equal [nil], Psych.load(yml)
end
end
end