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# frozen_string_literal: true
require_relative 'helper'
module Psych
class Tagged
yaml_tag '!foo'
attr_accessor :baz
def initialize
@baz = 'bar'
end
end
class Foo
attr_accessor :parent
def initialize parent
@parent = parent
end
end
class TestObject < TestCase
def test_dump_with_tag
tag = Tagged.new
assert_match('foo', Psych.dump(tag))
end
def test_tag_round_trip
tag = Tagged.new
tag2 = Psych.unsafe_load(Psych.dump(tag))
assert_equal tag.baz, tag2.baz
assert_instance_of(Tagged, tag2)
end
def test_cyclic_references
foo = Foo.new(nil)
foo.parent = foo
loaded = Psych.load(Psych.dump(foo), permitted_classes: [Foo], aliases: true)
assert_instance_of(Foo, loaded)
assert_same loaded, loaded.parent
end
def test_cyclic_reference_uses_alias
foo = Foo.new(nil)
foo.parent = foo
assert_raise(AliasesNotEnabled) do
Psych.load(Psych.dump(foo), permitted_classes: [Foo], aliases: false)
end
end
end
end
|
