require 'test_helper'
require 'roar/coercion'
require 'roar/decorator'

class CoercionFeatureTest < MiniTest::Spec
  describe "Coercion" do
    class SongDecorator < Roar::Decorator
      include Roar::JSON
      include Roar::Coercion

      property :composed_at, type: Types::JSON::DateTime, default: "May 12th, 2012"
    end

    class ImmigrantSong
      attr_accessor :composed_at
      def composed_at=(v) # in ruby 2.2, #label= is not there, all at sudden. what *is* that?
        @composed_at = v
      end
    end

    it "coerces into the provided type" do
      song      = ImmigrantSong.new
      decorator = SongDecorator.new(song)
      decorator.from_json("{\"composed_at\":\"November 18th, 1983\"}")
      assert_equal DateTime.parse("Fri, 18 Nov 1983 00:00:00 +0000"), song.composed_at
    end
  end
end