require "spec_helper"

describe Mongoid::Timestamps::Updated do

  describe ".included" do

    let(:agent) do
      Agent.new
    end

    let(:fields) do
      Agent.fields
    end

    before do
      agent.run_callbacks(:create)
      agent.run_callbacks(:save)
    end

    it "does not add created_at to the document" do
      fields["created_at"].should be_nil
    end

    it "adds updated_at to the document" do
      fields["updated_at"].should_not be_nil
    end

    it "forces the updated_at timestamps to UTC" do
      agent.updated_at.should be_within(10).of(Time.now.utc)
    end

    it "includes a record_timestamps class_accessor to ease AR compatibility" do
      Agent.should.respond_to? :record_timestamps
    end
  end

  context "when the document is new" do

    context "when providing the timestamp" do

      let(:time) do
        Time.new(2012, 1, 1)
      end

      let(:doc) do
        Dokument.create(updated_at: time)
      end

      it "does not override it with the default" do
        doc.updated_at.should eq(time)
      end

      it "does not persist an auto value" do
        doc.reload.updated_at.should eq(time)
      end
    end
  end

  context "when the document has not changed" do

    let(:agent) do
      Agent.instantiate("_id" => Moped::BSON::ObjectId.new, "account_ids" => [])
    end

    before do
      agent.new_record = false
    end

    it "does not run the update callbacks" do
      agent.should_receive(:updated_at=).never
      agent.save
    end
  end

  context "when the document is created" do

    let(:agent) do
      Agent.create
    end

    it "runs the update callbacks" do
      agent.updated_at.should_not be_nil
      agent.updated_at.should be_within(10).of(Time.now.utc)
    end
  end
end