TestBash Manchester 2016

Hello all,

I had the pleasure of going to TestBash in Manchester and it was absolutely awesome! I left feeling so inspired and in love with QA and testing!

I wanted to share with you some of the ideas that there were talked about;

1)  The concept of social and critical distance was discussed, social distance being as implied; the distance between people affects the way in which we work. Critical distance is how different individuals’ opinions can be and the consequences of this. The idea of this is that we want to create an environment where we cultivate critical distance (i.e. we encourage it because a difference in opinion can create great ideas and it is a good habit to challenge and question the things we do rather than accept it) and we eliminate social distance because teams should be in a place where they are able to collaborate effectively and challenge one another rather than just trying to please others.

2) Shu Ha Ri – this comes from japanese martial arts as a way of thinking about learning techniques.

Shu – is that you begin by following a rule. You follow the processes that are already there so you can learn the basic concepts and get yourself started.

Ha –  you begin to break the rule. You begin to start to understand more deeply the techniques and principles behind a particular technology or practice.

Ri – you are the rule. You learn for yourself and are seen as independent. You create your own approaches and can adapt techniques to your own style.

The idea here is that people are usually always at different levels of learning and you have to adapt to this. For example, for someone who is quite junior it is enough for them to be content with just following what you tell them as they are still at an early stage. However someone who is quite experienced will usually want to try and understand the underlying principles of what you are trying to teach them to do and so you will need to take a different approach to teaching.

If you want to read more on this there is an article by Martin Fowler here: http://martinfowler.com/bliki/ShuHaRi.html

shuhari

3) Another idea which I really liked was that shared documentation does not equal shared understanding. Pointing someone to a document that they can follow is not necessarily always the best way to share knowledge. This is because they have no context to what they are reading. It is always good to go through a document with someone as it will most likely be more effective rather than them just reading it and getting confused. Also, the danger with just reading documents is that people will make incorrect assumptions and can end up doing something that is completely wrong. People have different perceptions, speeds and languages in which their mind thinks.

4) And finally, there was a great presentation about not using scenarios as test cases. An automation strategy should be decoupled from the acceptance testing because it can get quite overwhelming. For example, you can have a scenario that can be something like given A, and B and C and D and E, then F…this should most certainly not be classified as a test as this doesn’t read well in code. Instead, we should segregate behaviour and test independently and then in e2e tests these ‘and’ descriptions will be in test setup.

There are a few others things which I’m going to write about in another post 🙂

QCon

I had the great opportunity to attend Qcon from March 7th-9th, an international software development conference held annually. It was such a valuable experience, I took away a lot and heard from inspirational speakers who have influenced innovation and creativity in the engineering world. I wanted to share what I heard from the talks I attended. I will split this post into three so it’s easier to read.

Monday 

Keynote – Unevenly Distributed by Adrian Colyer

Firstly I would just like to say how great of a speaker Adrian Colyer was! So engaging, great ideas and just overall a brilliant talk and a great start to Qcon. His presentation was based on this idea; the foundation and principles on which the future builds are carefully researched, implemented, evaluated, reviewed and written down. Adrian reads a research paper every (week)day and posts a summary to his blog ‘The Morning Paper‘. I took away these thoughts from his talk:

  1. What do research papers provide to us? Applied lessons, thinking tools and they raise our expectations
  2. Is it always the question of ‘the more, the better?’
  3. The Scalable Commutativity Rule
  4. The art of testing less without sacrificing quality
  5. Holistic Configuration Management at Facebook

Continuous Delivery: Benefits explained by Lianping Chen

Lianping Chen works at Paddy Power; they offer betting/gambling services in regulated markets, through shops, phones and mobile apps. He talked about how a few years ago, many releases used to be a scary experience as they were unpredictable and not frequent enough. Delivery activities weren’t efficient, setting up environments could take weeks. Continuous delivery came along, what is it? He recommended the book ‘Continuous Delivery: Reliable Software Releases Through Build, Test and Deployment Automation’.

Continuous Delivery – ‘there is more to continuous delivery than wiring together Jenkins instances and buying a new automated deployment tool’.

  1. Reliable Releases – less risk, should be another normal day (no stress), deploy at peak times!?, deployment automation to eliminate human errors
  2. Aligning testing and production environments – saves time on releaes
  3. Small batches

How do we achieve these things?

  • Collaborative culture and organization structure
  • Responsibility change – shift responsibility to developers, create trust between teams not friction and avoidance

He said something that stuck with me: ‘DevOps isn’t efficient without automation’. A task that can be done by clicking a button, automate it. Of course you shouldn’t automate tasks that would take more effort to automate and return little value (might as well do it manually). Anyone should be able to click a button!

When you are able to solve these problems, what do you get?

  • Accelerated time to market – reduced cycle time from creating a user story to deploying it. Start generating revenue
  • Get fast feedback – break big features down so that can be finished in a short period of time
  • Better architecture – the architecture should allow adding features in small increments
  • Zero-downtime deployments

Some other points

  • Testing is not only about writing tests but also about design.
  • Improved product quality – customers don’t find bugs, TDD/BDD/ATDD, eliminate flaky (non-deterministic) tests, fixing failing tests is a priority as it means something
  • Sonar – for metrics on test coverage

Spending time on writing tests and coming up with elegant design is better than spending time on fixing bugs.

Building the right product

‘You can’t just ask customers what they want and then try to give that to them. By the time you get it built, they’ll want something new’. Steve Jobs

Work on hypotheses, not requirements! i.e. decisions should be based on data, not ‘opinions’

How to win hearts and minds by Chris Young and Kate Gray

This talk was around the topic of how to convince your colleagues when you have an idea/something you want to compare. This talk was packed, had to stand to listen to it! Chris Young and Kate Gray were great speakers. They used the example of electoral politics; i.e. the techniques politicians use when they run campaigns. How can you influence behaviour and decisions? What is the common ground? They described three techniques:

Segmentation

  • break down barriers
  • creating options
  • who is likely to support you?
  • you don’t need 100%
  • soft support and hard support: there are those who completely support you and understand your cause (hard support) and those that are not too sure if they should support you (soft support). These are the people you need to focus your attention on.

They described this concept of Impact Mapping.

Vision

  • how do you communicate?
  • powerful, persuasive messages
  • relevant, meaningful
  • emotion over mind, having an effect on people
  • ongoing dialect with customers

Polling

  • keep people in the loop, respect their feedback and ask for their honest opinions

 

CD at LMAX: Testing into production and back again by Sam Adams

Continuous Delivery does not equal to Continuous Deployment. Continuous delivery is deploying when you have finished development. Continuous deployment is having the ability to deploy when you want.

One of the biggest challenges of going straight from the development environment to production is that the development teams usually do not have access to production environments, due to security reasons. However, for the simple tasks that can be done with a click of a button why don’t we just use automation?

Sam also talked about having tests outside the pipeline (performance, integration, stress) that don’t necessarily block the pipeline but if any issues are identified then these are looked into.

Other points

  • Everyone ones the test suite
  • ‘Intermittency testing’ – the best way to understand a system is to try and fix a problem with it!
  • Autotrish – records test results, identifies patterns in failures
  • Reliability tests – kill/fail-over/recover suites
  • Feature toggles – gradually introduce new features to users by only enabling for one/a  few users at a time and then increase the number of users

Acceptance testing for Continuous Delivery by Dave Farley

This talk was given by Dave Farley, one of the writers of the Continuous Delivery book I mentioned above. In this talk he discussed the meaning of acceptance criteria in automated tests.

Firstly, what does ‘done’ mean when you are writing automated tests? This is when the acceptance criteria have been fulfilled and the behaviour outlined has been automated.Acceptance tests should be an executable specification of the system behaviour.

Who owns the tests? This question got me thinking as really, developers, BAs and testers should own the tests. Why is it not only testers? Because developers write code, so they need to own the tests so they know that their code is working and doesn’t break another part of the system in any other way. Because BAs want changes to the system to be made easily and smoothly and so, they should know the test coverage and the value of the tests.

He also talked about what are the tests testing not how they are being tested. By this he meant we should abstract implementations – use mocks, page drivers etc as we are interested in the behaviour when writing acceptance tests, not how it has been implemented.

And last but not least, always use the language of the problem domain for readability and ease of maintenance.