task_spec.rb

describe Task do
  describe "#reset" do
    subject { build :task, started_at: past_timestamp, completed_at: past_timestamp, failed_at: past_timestamp }
    let(:past_timestamp) { 3.weeks.ago }

    it "resets the started_at timestamp to now" do
      expect { subject.reset }.to change { subject.started_at }.from(past_timestamp).to(DateTime.now)
    end

    it "clears the completed_at timestamp" do
      expect { subject.reset }.to change { subject.completed_at }.from(past_timestamp).to(nil)
    end

    it "clears the failed_at timestamp" do
      expect { subject.reset }.to change { subject.failed_at }.from(past_timestamp).to(nil)
    end

    it "destroys all associated TaskActions" do
      expect(subject).to receive_message_chain(:task_actions, :destroy_all)
      subject.reset
    end

    it "calls #reset_completed on all associated FeedItems" do
      double = Object.new
      expect(subject).to receive(:feed_items).and_return([double])
      expect(double).to receive(:reset_completed)
      subject.reset
    end
  end
end