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Jakub Kubrynski08/23/14
4787 views
1 replies

Debugging OpenJDK

Sometimes debugging Java code is not enough and we need to step over the native part of Java. I spent some time to achieve proper state of my JDK to do that, so short description probably will be useful for ones starting their trip. I'll use the brand new OpenJDK 9!

Carlos Sanchez08/23/14
4019 views
0 replies

Building Docker Images with Puppet

Everybody should be building Docker images! but what if you don’t want to write all those shell scripts, which is basically what the Dockerfile is, a bunch of shell commands in RUN declarations; or if you are already using some Puppet modules to build VMs?

Michael Scharhag08/22/14
3484 views
1 replies

Understanding JUnit's Runner architecture

Some weeks ago I started creating a small JUnit Runner (Oleaster) that allows you to use the Jasmine way of writing unit tests in JUnit.

Jim Bird08/22/14
56971 views
16 replies

Don't Waste Time on Code Reviews

Many people still think of code reviews as expensive formal code inspection meetings, with lots of prep work required before a room full of reviewers can slowly walk through the code together around a table with the help of a moderator and a secretary. Lots of hassles and delays and paperwork.

Dustin Marx08/21/14
1930 views
0 replies

Autoboxing, Unboxing, and NoSuchMethodError

J2SE 5 introduced numerous features to the Java programming language. One of these features is autoboxing and unboxing, a feature that I use almost daily without even thinking about it.

Cloudify Community08/21/14
3576 views
0 replies

A Puppet Automation + MySQL Tutorial: Wordpress Install in 7 Short Steps

In this blog post I'd like to demonstrate how a cloud application orchestrator can complement already existing automation processes powered by configuration management tools, in this case we will demonstrate with Puppet.

Alec Noller08/20/14
2834 views
0 replies

Dev of the Week: Topher Marie

Every week here and in our newsletter, we feature a new developer/blogger from the DZone community to catch up and find out what he or she is working on now and what's coming next. This week we're talking to Topher Marie, CTO and Co-Founder of JumpCloud.

John Ferguson Smart08/20/14
7492 views
4 replies

BDD, Automated Acceptance Tests and Continuous Delivery: Dealing with Scenarios that are "Work-in-Progress"

One of the principle rules of Continuous Delivery is that you should never knowingly commit code that will break the build. When you practice test-driven development this is easy: you write a failing test (or, more precisely, a failing "executable specification"), make it pass, and then refactor as required.

Rob Galanakis08/20/14
3487 views
0 replies

A Short Letter to a Unit Testing Newcomer

One of my friends asked how to get started with unit testing and Test Driven Development and figured I could write a short post. I also mention TDD a few times in my book so I think it could use some more attention.

Topher Marie08/19/14
5357 views
0 replies

DevOps Has IT Heroes Sleeping Through the Night

Fifteen years ago, at the height of the dot com bubble, system administrators were burning the candle at both ends. With no cloud, Agile, or DevOps to help them, they were making it happen through sheer force of will and effort. As far as modern IT is concerned, those days are gone, and it's for the best.

Dave Farley08/19/14
4578 views
0 replies

Dealing with Testing Times

This approach not only gives you better control in your tests, but it also speeds them up – no more sleeping threads, which can add up in large test suites. As well as all that it enables classes of testing that were simply impossible before (e.g. long duration waits).

Christophe Phil...08/18/14
7320 views
1 replies

When is your code DRY enough?

When facing some duplicate code, you're not always feeling comfortable to dry it up. You're not even sure you'll keep - as is - the code you've just wrote. By experience, you don't want to spend a whole day to end, maybe, with an abstract solution end to reason about.

Kapil Viren Ahuja08/18/14
4495 views
0 replies

Unit Testing - Cost vs Benefit

Recently, I came across this Podcast series between Martin Fowler, Kent Beck and DHH which was in response to DHH’s post TDD is dead, long live Testing.

Ajitesh Kumar08/18/14
3208 views
0 replies

Test-Driven Development (TDD) Shines with Mocking

Test-driven development is a software development process in which developers write tests first and, then writing enough code to pass those tests. Once all of the tests pass, they do code refactoring to enhance code quality. Following are key advantages of adopting TDD as your development process.

Kevin Rutherford08/17/14
4568 views
0 replies

I Don't Measure Code Coverage

I believe that test coverage is an unhelpful measure. I have two main reasons behind this belief: Firstly, test coverage often gives false positives and false negatives; and secondly, too many badly written tests will slow a project down (that is, higher coverage can mean lower habitability).

Stefano Ricciardi08/17/14
2210 views
0 replies

Book Review: Version Control With Git

If you need detailed information about GIT, then this is the deal (short of reading the source code I guess). Every aspect of the tool is explained (sometimes in excruciating detail) and the authors go to a great length to provide tips and gotchas on commands (especially when you might easily shoot yourself in the foot).

Kapil Viren Ahuja08/16/14
5524 views
0 replies

Unit Testing - Why Not?

For JUnit implementation in our project, we see a great challenge in having them implemented as we are already running behind for Sprint 2 and Sprint 3

Richard Warburton08/16/14
7423 views
0 replies

Lambda Behave (Java Testing Framework) 0.3 Released

Its great to see that despite only releasing a couple of months ago there's already quite a few people trying out or contributing to lambda behave. Massive thanks to the London Software Craftsmanship Community for hosting a talk on Lambda Behave and the London Java Community and Opencredo for hosting a hackday.

James Betteley08/15/14
3189 views
0 replies

The DevOps Team Myth

Should there really be such a thing as a “DevOps Engineer”? Probably not, but we’re far too late to stop it, and trying to stop it seems a bit of a waste of energy to me. Eventually “DevOps Engineer” will come to mean something more specific, but for now we’re just going to have to read a few more lines on CVs.

Edmund Kirwan08/15/14
3013 views
0 replies

The Most Important Factor in Software Decay

Why are programs so poorly structured?

Phil Whelan08/14/14
4674 views
0 replies

DevOps: Tools Vs Culture

DevOps is a marriage between tools and culture. If you are just using the tools that you heard about at a recent DevOps Days and not also embracing the culture (or at least working towards it) then you're not really "doing DevOps".

Paul Reed08/14/14
1855 views
0 replies

The Ship Show: The Epistemology of DevOps

How do we know, we know what DevOps is? For episode 46, we sit down with Praxisflow’s Kevin Behr (whom you might recognize as one of the authors of the Phoenix Project) and Jabe Bloom to talk about these and other heady questions, including: what can we learn from the Agile community?

Lukas Eder08/13/14
3449 views
9 replies

The "Free", "Standard", "Open" Software Heresy

There are those people that have a strong, dogmatic belief in what they call “Free” or “Standard” or “Open” software.

Dave Farley08/13/14
9386 views
0 replies

The Basics of Test-Driven Development

The objectives of Test Driven Development and unit testing are generally misunderstood. The problem is the word ‘test’, it is much less about testing and much more about specification of requirements, showing your working – as in maths, and the impact it has on design.

Paul Hammant08/13/14
3257 views
0 replies

Trunk Supporting Practices

Environment config, isn’t the same as “infrastructure as code”. This is the stuff that’s potentially live-tunable in an application stack that subsumes feature toggles, but goes further – application specific things not limited to rectangles of web-pages appearing or disappearing.