require 'assert'
require 'mr/json_field/fake_record'

require 'much-plugin'
require 'mr/json_field'
require 'mr/model'

module MR::JsonField::FakeRecord

  class UnitTests < Assert::Context
    desc "MR::JsonField::FakeRecord"
    subject{ MR::JsonField::FakeRecord }

    should "use much-plugin" do
      assert_includes MuchPlugin, subject
    end

  end

  class MixinTests < UnitTests
    desc "when mixed in"
    setup do
      @fake_record_class = Class.new do
        include MR::JsonField::FakeRecord
        attribute :hash_data_json,  :text
        attribute :array_data_json, :text
      end
    end
    subject{ @fake_record_class }

  end

  class InitTests < MixinTests
    desc "and init"
    setup do
      @model_class = Class.new do
        include MR::Model
        field_accessor :hash_data_json, :array_data_json

        include MR::JsonField
        json_field :hash_data
        json_field :array_data
      end
      @fake_record_class.model_class(@model_class)

      @fake_record = @fake_record_class.new
      @model       = @fake_record.model
    end
    subject{ @fake_record }

    should "sync all of its json fields on save" do
      @model.hash_data  = { Factory.string => Factory.string }
      @model.array_data = Factory.integer(3).times.map{ Factory.string }

      # since we used the writer the fields and their source should be equal
      assert_equal @model.hash_data,  MR::JsonField.decode(subject.hash_data_json)
      assert_equal @model.array_data, MR::JsonField.decode(subject.array_data_json)

      @model.hash_data[Factory.string] = Factory.string
      @model.array_data << Factory.string
      # since we modified the fields and didn't use the writer, their source
      # should not be equal
      assert_not_equal @model.hash_data,  MR::JsonField.decode(subject.hash_data_json)
      assert_not_equal @model.array_data, MR::JsonField.decode(subject.array_data_json)

      subject.save!

      # now that the callback has been run they should be equal once again
      assert_equal @model.hash_data,  MR::JsonField.decode(subject.hash_data_json)
      assert_equal @model.array_data, MR::JsonField.decode(subject.array_data_json)
    end

  end

end