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# frozen_string_literal: true
require_relative 'helper'
class PsychDataWithIvar < Data.define(:foo)
attr_reader :bar
def initialize(**)
@bar = 'hello'
super
end
end unless RUBY_VERSION < "3.2"
module Psych
class TestData < TestCase
class SelfReferentialData < Data.define(:foo)
attr_accessor :ref
def initialize(foo:)
@ref = self
super
end
end unless RUBY_VERSION < "3.2"
def setup
omit "Data requires ruby >= 3.2" if RUBY_VERSION < "3.2"
end
# TODO: move to another test?
def test_dump_data
assert_equal <<~eoyml, Psych.dump(PsychDataWithIvar["bar"])
--- !ruby/data-with-ivars:PsychDataWithIvar
members:
foo: bar
ivars:
"@bar": hello
eoyml
end
def test_self_referential_data
circular = SelfReferentialData.new("foo")
loaded = Psych.unsafe_load(Psych.dump(circular))
assert_instance_of(SelfReferentialData, loaded.ref)
assert_equal(circular, loaded)
assert_same(loaded, loaded.ref)
end
def test_roundtrip
thing = PsychDataWithIvar.new("bar")
data = Psych.unsafe_load(Psych.dump(thing))
assert_equal "hello", data.bar
assert_equal "bar", data.foo
end
def test_load
obj = Psych.unsafe_load(<<~eoyml)
--- !ruby/data-with-ivars:PsychDataWithIvar
members:
foo: bar
ivars:
"@bar": hello
eoyml
assert_equal "hello", obj.bar
assert_equal "bar", obj.foo
end
def test_members_must_be_identical
TestData.const_set :D, Data.define(:a, :b)
d = Psych.dump(TestData::D.new(1, 2))
# more members
TestData.send :remove_const, :D
TestData.const_set :D, Data.define(:a, :b, :c)
e = assert_raise(ArgumentError) { Psych.unsafe_load d }
assert_equal 'missing keyword: :c', e.message
# less members
TestData.send :remove_const, :D
TestData.const_set :D, Data.define(:a)
e = assert_raise(ArgumentError) { Psych.unsafe_load d }
assert_equal 'unknown keyword: :b', e.message
# completely different members
TestData.send :remove_const, :D
TestData.const_set :D, Data.define(:foo, :bar)
e = assert_raise(ArgumentError) { Psych.unsafe_load d }
assert_equal 'unknown keywords: :a, :b', e.message
ensure
TestData.send :remove_const, :D
end
end
end
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