test_json_tree.rb

require 'psych/helper'

module Psych
  class TestJSONTree < TestCase
    def test_string
      assert_match(/"foo"/, Psych.to_json("foo"))
    end

    def test_symbol
      assert_match(/"foo"/, Psych.to_json(:foo))
    end

    def test_nil
      assert_match(/^null/, Psych.to_json(nil))
    end

    def test_int
      assert_match(/^10/, Psych.to_json(10))
    end

    def test_float
      assert_match(/^1.2/, Psych.to_json(1.2))
    end

    def test_hash
      hash = { 'one' => 'two' }
      json = Psych.to_json(hash)
      assert_match(/}$/, json)
      assert_match(/^\{/, json)
      assert_match(/['"]one['"]/, json)
      assert_match(/['"]two['"]/, json)
    end

    class Bar
      def encode_with coder
        coder.represent_seq 'omg', %w{ a b c }
      end
    end

    def test_json_list_dump_exclude_tag
      json = Psych.to_json Bar.new
      refute_match('omg', json)
    end

    def test_list_to_json
      list = %w{ one two }
      json = Psych.to_json(list)
      assert_match(/]$/, json)
      assert_match(/^\[/, json)
      assert_match(/"one"/, json)
      assert_match(/"two"/, json)
    end

    def test_time
      time = Time.utc(2010, 10, 10)
      assert_equal "{\"a\": \"2010-10-10 00:00:00.000000000Z\"}\n",
Psych.to_json({'a' => time })
    end

    def test_datetime
      time = Time.new(2010, 10, 10).to_datetime
      assert_equal "{\"a\": \"#{time.strftime("%Y-%m-%d %H:%M:%S.%9N %:z")}\"}\n", Psych.to_json({'a' => time })
    end
  end
end