Demonstrating incomplete work sucks

The current sprint is ended. Our team hold the sprint review. At the sprint review, we review the work that was completed and the planned work that was not completed to the stakeholders.

The last weeks, our reviews are a little bit hectic. This time, things where not different. I tested yesterday some features and they seem to work, with some minor bugs in it. If I was a stakeholder, I could live with those minor issues. So for me it was simple. We could close some stories and enter extra bugs in our database and go on.

This is for me a better scenario than what we encounter in our review meeting. The demonstration was not done on the version I took while testing, but a next version. “Because some more bugs are fixed”. That is fine for me. I really like that more bugs are fixed.

Unfortunately the new changes introduced some other things that where broken. We did not automate everything in our build pipeline. For example, we do not have automatic user interface tests. If something breaks the user interface, it is not detected until it is seen with manual testing. There are other parts of our system that needs manual testing too. The main reason they are not yet automated is a lack of time.

You could now ask to me: “Why did you allow that the new version is taken for demo purposes?” That is because I am one tester in a team. But we do have 3 teams that are working on the same product. All three teams also do have a review on the same moment on the same machine. So I do also have to trust the other teams that they tested the changes they made. I do have to trust them that they did not break anything.

But they did break some things. At this moment I am a little bit afraid. Afraid that changes that a team makes, brakes some features of another team. We have 3 teams. Each team has one tester that helps the team. But as tester, we help the team to test stories. We do not have sufficient time to check everything on lets call it epic level. At this moment, I am thinking that the testers do not belong in the team. At this moment, I think that the testers should test more on epic level.

We have a scaling problem. How do we scale scrum to more teams? All interesting questions we should solve one by one. I already read about scrum of scrums, but this does not say how testing the integration points. And more, how can the testers help?

How do other teams tackle this kind of problem?