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require_relative 'helper'

class TestPsych < Psych::TestCase
  def test_dump_stream
    things = [22, "foo \n", {}]
    stream = Psych.dump_stream(*things)
    assert_equal things, Psych.load_stream(stream)
  end

  def test_simple
    assert_equal 'foo', Psych.load("--- foo\n")
  end

  def test_libyaml_version
    assert Psych.libyaml_version
    assert_equal Psych.libyaml_version.join('.'), Psych::LIBYAML_VERSION
  end

  def test_load_documents
    docs = Psych.load_documents("--- foo\n...\n--- bar\n...")
    assert_equal %w{ foo bar }, docs
  end

  def test_parse_stream
    docs = Psych.parse_stream("--- foo\n...\n--- bar\n...")
    assert_equal %w{ foo bar }, docs.children.map { |x| x.transform }
  end

  def test_add_builtin_type
    got = nil
    Psych.add_builtin_type 'omap', do |type, val|
      got = val
    end
    Psych.load('--- !omap hello')
    assert_equal 'hello', got
  ensure
    Psych.remove_type 'omap'
  end

  def test_domain_types
    got = nil
    Psych.add_domain_type 'foo.bar,2002', 'foo' do |type, val|
      got = val
    end

    Psych.load('--- !foo.bar,2002/foo hello')
    assert_equal 'hello', got

    Psych.load("--- !foo.bar,2002/foo\n- hello\n- world")
    assert_equal %w{ hello world }, got

    Psych.load("--- !foo.bar,2002/foo\nhello: world")
    assert_equal({ 'hello' => 'world' }, got)
  end

  def test_load_file
    name = File.join(Dir.tmpdir, 'yikes.yml')
    File.open(name, 'wb') { |f| f.write('--- hello world') }

    assert_equal 'hello world', Psych.load_file(name)
  end

  def test_parse_file
    name = File.join(Dir.tmpdir, 'yikes.yml')
    File.open(name, 'wb') { |f| f.write('--- hello world') }

    assert_equal 'hello world', Psych.parse_file(name).transform
  end
end