discourse/spec/jobs/periodical_updates_spec.rb

require 'rails_helper'
require_dependency 'jobs/scheduled/periodical_updates'

describe Jobs::PeriodicalUpdates do

  it "works" do

    # does not blow up, no mocks, everything is called
    Jobs::PeriodicalUpdates.new.execute(nil)
  end

  it "can rebake old posts when automatically_download_gravatars is false" do
    SiteSetting.automatically_download_gravatars = false
    post = create_post
    post.update_columns(baked_at: Time.new(2000, 1, 1), baked_version: -1)
    described_class.new.execute({})

    post.reload
    expect(post.baked_at).to be > 1.day.ago

    baked = post.baked_at
    described_class.new.execute({})
    post.reload
    expect(post.baked_at).to eq(baked)
  end
end