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# frozen_string_literal: true
require_relative 'helper'
module Psych
class TestArray < TestCase
class X < Array
end
class Y < Array
attr_accessor :val
end
def setup
super
@list = [{ :a => 'b' }, 'foo']
end
def test_enumerator
x = [1, 2, 3, 4]
y = Psych.load Psych.dump x.to_enum
assert_equal x, y
end
def test_another_subclass_with_attributes
y = Y.new.tap {|o| o.val = 1}
y << "foo" << "bar"
y = Psych.unsafe_load Psych.dump y
assert_equal %w{foo bar}, y
assert_equal Y, y.class
assert_equal 1, y.val
end
def test_subclass
yaml = Psych.dump X.new
assert_match X.name, yaml
list = X.new
list << 1
assert_equal X, list.class
assert_equal 1, list.first
end
def test_subclass_with_attributes
y = Psych.unsafe_load Psych.dump Y.new.tap {|o| o.val = 1}
assert_equal Y, y.class
assert_equal 1, y.val
end
def test_backwards_with_syck
x = Psych.unsafe_load "--- !seq:#{X.name} []\n\n"
assert_equal X, x.class
end
def test_self_referential
@list << @list
assert_cycle(@list)
end
def test_recursive_array
@list << @list
loaded = Psych.load(Psych.dump(@list), aliases: true)
assert_same loaded, loaded.last
end
def test_recursive_array_uses_alias
@list << @list
assert_raise(AliasesNotEnabled) do
Psych.load(Psych.dump(@list), aliases: false)
end
end
def test_cycle
assert_cycle(@list)
end
end
end
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