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.reset }.to change { subject.task_actions.count }.from(2).to(0)
    end

    it "resets completion state for all associated FeedItems" do
      expect { subject.reset }.to change { FeedItems.for(subject).completed.count }.from(3).to(0)
    end
  end
end