discourse/spec/lib/upload_recovery_spec.rb

require 'rails_helper'
require_dependency "upload_recovery"

RSpec.describe UploadRecovery do
  let(:user) { Fabricate(:user) }

  let(:upload) do
    UploadCreator.new(
      file_from_fixtures("logo.png"),
      "logo.png"
    ).create_for(user.id)
  end

  let(:post) do
    Fabricate(:post,
      raw: "![logo.png](#{upload.short_url})",
      user: user
    ).tap(&:link_post_uploads)
  end

  let(:upload_recovery) { UploadRecovery.new }

  before do
    SiteSetting.queue_jobs = false
  end

  describe '#recover' do
    after do
      public_path = "#{Discourse.store.public_dir}#{upload.url}"

      [
        public_path,
        public_path.sub("uploads", "uploads/tombstone")
      ].each { |path| File.delete(path) if File.exists?(path) }
    end

    describe 'when given an invalid sha1' do
      it 'should not do anything' do
        upload_recovery.expects(:recover_from_local).never

        post.update!(
          raw: "![logo.png](upload://#{'a' * 28}.png)"
        )

        upload_recovery.recover
      end
    end

    it 'should recover the upload' do
      stub_request(:get, "http://test.localhost#{upload.url}")
        .to_return(status: 200)

      expect do
        upload.destroy!
      end.to change { post.reload.uploads.count }.from(1).to(0)

      expect do
        upload_recovery.recover
      end.to change { post.reload.uploads.count }.from(0).to(1)
    end
  end
end