paper-trail-gem--paper_trail/spec/models/skipper_spec.rb

require "rails_helper"

describe Skipper, type: :model do
  with_versioning do
    it { is_expected.to be_versioned }

    describe "#update_attributes!", versioning: true do
      context "updating a skipped attribute" do
        let(:t1) { Time.zone.local(2015, 7, 15, 20, 34, 0) }
        let(:t2) { Time.zone.local(2015, 7, 15, 20, 34, 30) }

        it "should not create a version" do
          skipper = Skipper.create!(another_timestamp: t1)
          expect {
            skipper.update_attributes!(another_timestamp: t2)
          }.to_not change { skipper.versions.length }
        end
      end
    end

    describe "reify" do
      context "reifying a with a skipped attribute" do
        let(:t1) { Time.zone.local(2015, 7, 15, 20, 34, 0) }
        let(:t2) { Time.zone.local(2015, 7, 15, 20, 34, 30) }

        context "without preserve (default)" do
          it "should have no timestamp" do
            skipper = Skipper.create!(another_timestamp: t1)
            skipper.update_attributes!(another_timestamp: t2, name: "Foobar")
            skipper = skipper.versions.last.reify
            expect(skipper.another_timestamp).to be(nil)
          end
        end

        context "with preserve" do
          it "should preserve its timestamp" do
            skipper = Skipper.create!(another_timestamp: t1)
            skipper.update_attributes!(another_timestamp: t2, name: "Foobar")
            skipper = skipper.versions.last.reify(unversioned_attributes: :preserve)
            expect(skipper.another_timestamp).to eq(t2)
          end
        end
      end
    end
  end
end