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Posts Tagged ‘TDD’

JUnit 5 / Project Reactor (April 13)

April 1st, 2017 1 comment

We are happy to announce our next JUG UA meeting. Our partner EPAM provides everyone with a possibility to join this event online.

Date: April 13, 19:00 – 22:30 (registration from 18:30)
Venue: “Olympic Hall – Vokzalnaya”, Vasylia Lypkivskoho St, 3, Kyiv

Agenda

  • JUnit 5: The Rise of Jupiter (Yaroslav Yermilov, @EPAM) (slides, src, video)
The planet Jupiter (5th! in the Solar System) needs 11 years to make one complete orbit around the Sun. So do JUnit needs 11 years to get a new major release, which means it’s going to be really huge.
Milestone 3 is already available and GA is scheduled on Q3 2017, so now it’s the best time learn and discuss how automating testing is going to look like very soon.
In this talk we will go through JUnit 5 changes and see how they will influence test code we write. Also we will discuss JUnit 5 architectural approach, how it can be extended and how it turns JUnit from test framework into test platform.

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During the meetup, we are going to overview Project Reactor in depth and trying to understand how to use correctly given functionality and rebuild imperative web application to reactive one.
Agenda:
1. Project Reactor overview.
2. Imperative Application analyzing (2 pages web application with the Gitter integration and plain DB for event logging)
3. Test Refactoring
4. Application refactoring

JUG UA meetup at Wix Kyiv

March 14th, 2017 1 comment

Dear friends, we are happy to announce our next JUG UA meetup at Wix Kyiv.

Date: March 30, 19:00 – 22:00 (registration from 18:30)
Venue: Pankivska 14A St, 4th Floor, Kyiv

Agenda

  • Finding Your Organization’s Code Deodorant (EN) (Ittai Zeidman, Wix) video

What do you do when you know your codebase is dirty, and it’s your in-house framework? This happened to us at Wix. As we debated how to tackle our massive technical debt, we were struck by a wonderful realization: the process of transforming the old framework into something new and shiny is a golden opportunity to improve coding practices throughout the organization. We steered clear of specs and coding standards in favor of a platform of debating, reviewing and improving code. In this talk Ittai will walk you through the process we went through, sharing the story of how we used this ongoing refactoring effort to drive code quality improvements throughout Wix R&D.

  • TDD: Discover Implementation by Stepping Small (Vaidas Pilkauskas, Wix) video

Enough with the theory! Let’s look into how classical TDD techniques are applied to discover algorithm implementations by moving forward with baby steps and triangulating into more generic implementation. This talk is fully based on live coding in Scala, but does not require any prior experience with the language. It covers the following techniques: baby steps, transformation priority premise, mutable vs. immutable code, functional programming habits that may get in the way. It will end with introduction to tail call optimization by leaving audience with an open question which code was more readable.

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Clean Tests / JDK changes at JUGUA (February 23)

February 13th, 2017 1 comment

Dear friends, after a long break, we are happy to announce our next JUG UA meeting.

Our all-time partner EPAM provides everyone with a possibility to join this event online.

Date: February 23, 18:40 – 22:30
Venue:  “Olympic Hall – Vokzalnaya”, Vasylia Lypkivskoho St, 3, Kyiv

Agenda

  • An Obsessive Compulsive Guide To Clean Tests (EN) (Noam Almog, Tech Lead @Wix) video

TDD isn’t news, and most everyone agrees that writing tests (before, during or after implementation) is valuable. Hardly anyone agrees on what good, clean tests look like, though; if your tests are a live specification of your codebase, don’t they deserve the same care and attention as your production code?

This talk focuses on how to keep your tests readable, simple and maintainable. Specifically we’ll discuss how the “given-when-then” pattern affects the way you factor your code, and showcase the remarkable differences between a sloppy specification and a well-factored one.

Moderate experience with testing is expected; knowledge Scala might be helpful but is not required.

  • JDK changes behind the scenes (Igor Dmitriev, Software Engineer @Very Good Group) video

We have been using Java 7 and 8 for a long time, there are a lot of new features, like Stream API, Lambdas, Optional, New Data/Time API, Default methods, etc. But there are so many small improvements as well, which go without attracting attention. In my experience many developers don’t even know about these changes. And I am going to change this situation.

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Dr. Venkat Subramaniam TDD master class

September 13th, 2015 No comments

Many organizations are working hard to be agile. They have mostly mastered the non-technical aspects of agile development, however, the major impediments come from not embracing some key technical practices. Evolving an application requires, amount other things, evolving the design and architecture, but that has risks.

In this workshop, we will focus and learn some key technical practices that will help us evolve applications based on the feedback cycles that agile development heavily relies upon. We will learn design principles and practices that help reduce risk involved often in evolving software. Read more…

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