Posts by Tag

tdd

On-site TDD

6 minute read

One of the recurring questions in TDD workshops is "How do I test private methods?“. My usual answer is worded along the following lines: "You don’t. Any pri...

Veterans of TDD: Lasse Koskela

5 minute read

I "recorded" episode 6 using email ping pong with Lasse. Since I knew that his company is involved in funding start-ups, the TDD vs learning-what-product-to-...

Veterans of TDD: Willem van den Ende

14 minute read

The interview of episode 5 is with Willem van den Ende. He's going into quite some detail about what function languages bring to the TDD table and where you ...

Veterans of TDD: J B Rainsberger

16 minute read

Episode 4 is the longest of all episode so far and it is based on an hour-long interview I did with J B Rainsberger a few weeks ago. The interview was very i...

Veterans of TDD: James Shore

14 minute read

Episode 3 is the  shortened transcript of an interview I did with James Shore via Skype; that's why it's a bit longer than the previous ones.

Veterans of TDD: Ron Jeffries

3 minute read

My readers already know that I'm in the midst of writing a book about TDD. One thing I deemed worthwhile when rethinking the test-driven state of the art is ...

Business Experiments

less than 1 minute read

I'm currently running a triple experiment: For the first time in my career I'm trying to organize a public workshop completely on my own. The topic is Advan...

Teaching in Impatient Times

1 minute read

Recently I held an in-house, two-day-workshop on pair programming and test-driven development. After having done similar workshops for almost a decade now, r...

Agile 2008 in Toronto

less than 1 minute read

This year's Agile conference is looming quite large. I'm going to give a talk on "Test-Driven Ajax" on August, 5. That's the good news and I'm looking very m...

TDD Workshop in Munich

less than 1 minute read

If you have been planning to get some TDD teaching you might consider to come to Munich on June 9 & 10 and attend my workshop on TDD with C#. The course ...

One Little Step for JetBrains…

less than 1 minute read

... but a giant leap for dotnetkind. Via Tim Goodwin I learned that ReSharper 4.0 will have the Inline Method refactoring built in. I've never really underst...

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java

On Ordered Sets

3 minute read

General purpose OO languages - like Java or C# - come with a library for collection type objects like arrays, lists, and sets. If you throw in a static type ...

Building Grammars (and Parsers) on the Fly

5 minute read

I've always felt that code generation is mostly a means to optimize performance of stuff (e.g. DSL execution) that could as well be done during runtime. I mi...

C# is not Java is not C# is not Java

3 minute read

Switching regularly between .NET and Java definitely does not facilitate remembering the details of one platform or the other. For me, however, it made me se...

The Tellerrand Series

less than 1 minute read

I finally managed to put all twelve articles from my infamous series "Jenseits des Tellerrands" in the German Java Magazin online (as PDF files). It's a coll...

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mylife

I’m Not Quitting, I’m Letting Go

9 minute read

Since the end of Netdosis I've been thinking about what to do now for a living. I've known for a while that I couldn't just go back to Agile coaching - but ...

Netdosis Afterthoughts

2 minute read

Almost 2 years ago I told you about why I was leaving the field of Agile coaching and that I'd be co-founding a start-up called Mydosis Netdosis. Ver...

“We Don’t Have a TV Set”

less than 1 minute read

That sentence used to be one that I've let slip quite a few times during the last 8 years or so. Depending on who I was talking to it either trickered an awe...

Everything. Everyone. Everywhere. Ends.

1 minute read

I've stolen the title from one of the best TV shows ever: Six Feet Under. Although "Everything ... Ends" sounds like a truism, the way and speed at which thi...

Farewell, My Lovely (*)

1 minute read

My not so private tech life has been rather quite during the last weeks. That's mainly due to the fact that I'm in the midst of changing my employer, i.e., I...

Rats

less than 1 minute read

You might think it's over, but it isn't All garbage has been collected. The remaining trash has been swiped away. But the rats, after having being crammed li...

Getting Used to It

less than 1 minute read

After 8 weeks of strike, the garbage collection service is supposed to pick up refuse today: I must confess that I sort of got used to stumble over garbage ...

On broken windows, garbage and everything

2 minute read

You might have heard about the Theory of Broken Windows first formulated in an article by James Q. Wilson and George L. Kelling: "Consider a building with a...

Overcoming Tech Boredom

1 minute read

Actually, I thought it would be much easier to find a suitable provider for my first blogging attempts. Since my goal is to provide content and not to config...

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jqwik

Jqwik: An Alternative JUnit5 Test Engine

1 minute read

As one of the original designers and contributors of JUnit 5 I’ve always been intrigued by its basic idea to not only be a fresh start for a maintainable tes...

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property-based testing

Jqwik: An Alternative JUnit5 Test Engine

1 minute read

As one of the original designers and contributors of JUnit 5 I’ve always been intrigued by its basic idea to not only be a fresh start for a maintainable tes...

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ajax

AJAX Travelogue (Part 7): MockMe

1 minute read

In the previous episode you've learned why a mocking framework seems to be a reasonable idea even in a language that provides closures and duck typing. MockM...

Agile 2008 in Toronto

less than 1 minute read

This year's Agile conference is looming quite large. I'm going to give a talk on "Test-Driven Ajax" on August, 5. That's the good news and I'm looking very m...

AJAX Travelogue (Part 5): MVP in JayJax

3 minute read

I'll skip foreplay today and dive into the middle of things. Our goal is to realize   in such a way that the BookSearcher is implemented on the server ...

AJAX Travelogue (Part 4): JayJax

1 minute read

You probably couldn't help notice my very subtle hints to JayJax, the yet unknown little Ajax blah blah blah... JayJax is my most recent baby, and like any p...

AJAX Travelogue (Part 2): Communication

2 minute read

Are you looking for an online tutorial on Asynchronous JavaScript And XML? This is not the place for you then, but Max Kiesler's round up of Ajax online cou...

AJAX Travelogue (Part 1): The Pilot

3 minute read

There's hardly ever been a term in software development which has been picked up, digested and (ab)used as fast as AJAX (Asynchronous JavaScript and XML). T...

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agile

I’m Not Quitting, I’m Letting Go

9 minute read

Since the end of Netdosis I've been thinking about what to do now for a living. I've known for a while that I couldn't just go back to Agile coaching - but ...

Say Goodbye, I won’t be Back

3 minute read

Yesterday was my first day in a new position. I'm now co-founder of a start-up called Mydosis. But this blog post is not about what's coming, it's about what...

Sleepless in Toronto

2 minute read

So, I'm here in Toronto at the Agile Conference. It is 4:31am now, which tells you that my body is still somewhat drawn between night and day. Never mind, th...

Agile 2008 in Toronto

less than 1 minute read

This year's Agile conference is looming quite large. I'm going to give a talk on "Test-Driven Ajax" on August, 5. That's the good news and I'm looking very m...

Seven Years

less than 1 minute read

7 years ago the agile manifesto was published. Frank Westphal interviewed Henning Wolf, Jens Coldewey, Jutta Eckstein and myself about how we see, feel and l...

Is C++ Suited for Agile Development?

less than 1 minute read

My personal opinion on this is "only barely - if at all". If you can read German then Jens Coldewey's very good summary of the problems you run into if you t...

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programming

Coming of(f) Age

less than 1 minute read

It's a fact that we all are getting older, some of us are even getting old. Nevertheless, it came as a surprise to me that in my current consulting and coach...

The Tellerrand Series

less than 1 minute read

I finally managed to put all twelve articles from my infamous series "Jenseits des Tellerrands" in the German Java Magazin online (as PDF files). It's a coll...

The Janitor’s Configuration Dilemma

2 minute read

The right amount of configurability in software has always bothered me. Most of the time when using off-the-shelf software I've wished for LESS options to ch...

On broken windows, garbage and everything

2 minute read

You might have heard about the Theory of Broken Windows first formulated in an article by James Q. Wilson and George L. Kelling: "Consider a building with a...

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groovy

Simplified Use of Locks in Groovy

1 minute read

I am currently writing an article about the challenges and pitfalls of concurrent programming for a German software magazine. Since the magazine's readers co...

Building Grammars (and Parsers) on the Fly

5 minute read

I've always felt that code generation is mostly a means to optimize performance of stuff (e.g. DSL execution) that could as well be done during runtime. I mi...

Refactoring FitNesse Tests

2 minute read

Have you ever had a Fit(Nesse) test suite of more than just a few pages? Have you ever tried to consistently change the names of test pages, fixtures, column...

Learning Groovy

1 minute read

There's a standard trick I use to force myself into learning new stuff: I agree to write an article or give a talk on a topic that I want to know more about....

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mvp

MVP revisited

1 minute read

In one of my early postings I introduced the model view presenter pattern as a feasible way to implement testable GUIs. Later I showed how you can easily ap...

AJAX Travelogue (Part 5): MVP in JayJax

3 minute read

I'll skip foreplay today and dive into the middle of things. Our goal is to realize   in such a way that the BookSearcher is implemented on the server ...

AJAX Travelogue (Part 4): JayJax

1 minute read

You probably couldn't help notice my very subtle hints to JayJax, the yet unknown little Ajax blah blah blah... JayJax is my most recent baby, and like any p...

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junit

Goodbye, JUnit 5

less than 1 minute read

Sometimes, despite your best efforts, a conflict within the team cannot be overcome with goodwill or compromises. Something (or someone) has to give. This ti...

ClasspathSuite 1.2.1

less than 1 minute read

In order to prove that gaussian distribution does not hold for the time between releases I've made ClasspathSuite version 1.2.1 available as of now. Basicall...

ClasspathSuite 1.2.0 beta

less than 1 minute read

After more than a year of perfect stability I eventually adapted ClasspathSuite to JUnit 4.5's way of building test suites. I added a new feature, too.

ClasspathSuite for JUnit 4

1 minute read

Stefan Roock made me aware of the fact that Eclipse (3.2) does not have support for JUnit testing in a multi project setting. He points to some code by Björ...

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testing

ClasspathSuite 1.2.1

less than 1 minute read

In order to prove that gaussian distribution does not hold for the time between releases I've made ClasspathSuite version 1.2.1 available as of now. Basicall...

ClasspathSuite 1.2.0 beta

less than 1 minute read

After more than a year of perfect stability I eventually adapted ClasspathSuite to JUnit 4.5's way of building test suites. I added a new feature, too.

Refactoring FitNesse Tests

2 minute read

Have you ever had a Fit(Nesse) test suite of more than just a few pages? Have you ever tried to consistently change the names of test pages, fixtures, column...

ClasspathSuite for JUnit 4

1 minute read

Stefan Roock made me aware of the fact that Eclipse (3.2) does not have support for JUnit testing in a multi project setting. He points to some code by Björ...

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jayjax

MVP revisited

1 minute read

In one of my early postings I introduced the model view presenter pattern as a feasible way to implement testable GUIs. Later I showed how you can easily ap...

AJAX Travelogue (Part 5): MVP in JayJax

3 minute read

I'll skip foreplay today and dive into the middle of things. Our goal is to realize   in such a way that the BookSearcher is implemented on the server ...

AJAX Travelogue (Part 4): JayJax

1 minute read

You probably couldn't help notice my very subtle hints to JayJax, the yet unknown little Ajax blah blah blah... JayJax is my most recent baby, and like any p...

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cpsuite

ClasspathSuite 1.2.1

less than 1 minute read

In order to prove that gaussian distribution does not hold for the time between releases I've made ClasspathSuite version 1.2.1 available as of now. Basicall...

ClasspathSuite 1.2.0 beta

less than 1 minute read

After more than a year of perfect stability I eventually adapted ClasspathSuite to JUnit 4.5's way of building test suites. I added a new feature, too.

ClasspathSuite for JUnit 4

1 minute read

Stefan Roock made me aware of the fact that Eclipse (3.2) does not have support for JUnit testing in a multi project setting. He points to some code by Björ...

Back to top ↑

design

On Ordered Sets

3 minute read

General purpose OO languages - like Java or C# - come with a library for collection type objects like arrays, lists, and sets. If you throw in a static type ...

Software Design Creationism

1 minute read

In case you have known me or this web log for a while you probably know that I am all into the evolutionary style of software development. In other words, I ...

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javascript

AJAX Travelogue (Part 7): MockMe

1 minute read

In the previous episode you've learned why a mocking framework seems to be a reasonable idea even in a language that provides closures and duck typing. MockM...

To Everyone Their Own Mock Framework

less than 1 minute read

Mine is called MockMe. It's for JavaScript only. I will explain everything and more after coming back from Toronto. See you there?

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mocking

AJAX Travelogue (Part 7): MockMe

1 minute read

In the previous episode you've learned why a mocking framework seems to be a reasonable idea even in a language that provides closures and duck typing. MockM...

To Everyone Their Own Mock Framework

less than 1 minute read

Mine is called MockMe. It's for JavaScript only. I will explain everything and more after coming back from Toronto. See you there?

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model-view-presenter

MVP revisited

1 minute read

In one of my early postings I introduced the model view presenter pattern as a feasible way to implement testable GUIs. Later I showed how you can easily ap...

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architecture

What’s an Architect Anyway?

2 minute read

Evolutionary software architecture (ESA) has been one of my favourite topics for quite a while, despite the fact that I often look down my nose at people cal...

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software

Software Design Creationism

1 minute read

In case you have known me or this web log for a while you probably know that I am all into the evolutionary style of software development. In other words, I ...

What’s an Architect Anyway?

2 minute read

Evolutionary software architecture (ESA) has been one of my favourite topics for quite a while, despite the fact that I often look down my nose at people cal...

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xp

The New and Open XP Days Germany

less than 1 minute read

Last year I was program chair of XP Days Germany. Although it was quite a success I wasn't really content with the old-fashioned process any more: submit ses...

How to Regain Lost Passion - Maybe

1 minute read

XP Day Germany in Hamburg is over. I was quite nervous about it since it does not happen too often that I'm being invited to give a keynote on any topic I li...

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xpday

The New and Open XP Days Germany

less than 1 minute read

Last year I was program chair of XP Days Germany. Although it was quite a success I wasn't really content with the old-fashioned process any more: submit ses...

How to Regain Lost Passion - Maybe

1 minute read

XP Day Germany in Hamburg is over. I was quite nervous about it since it does not happen too often that I'm being invited to give a keynote on any topic I li...

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refactoring

One Little Step for JetBrains…

less than 1 minute read

... but a giant leap for dotnetkind. Via Tim Goodwin I learned that ReSharper 4.0 will have the Inline Method refactoring built in. I've never really underst...

Refactoring FitNesse Tests

2 minute read

Have you ever had a Fit(Nesse) test suite of more than just a few pages? Have you ever tried to consistently change the names of test pages, fixtures, column...

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toronto

Sleepless in Toronto

2 minute read

So, I'm here in Toronto at the Agile Conference. It is 4:31am now, which tells you that my body is still somewhat drawn between night and day. Never mind, th...

Agile 2008 in Toronto

less than 1 minute read

This year's Agile conference is looming quite large. I'm going to give a talk on "Test-Driven Ajax" on August, 5. That's the good news and I'm looking very m...

Back to top ↑

junit5

Jqwik: An Alternative JUnit5 Test Engine

1 minute read

As one of the original designers and contributors of JUnit 5 I’ve always been intrigued by its basic idea to not only be a fresh start for a maintainable tes...

Goodbye, JUnit 5

less than 1 minute read

Sometimes, despite your best efforts, a conflict within the team cannot be overcome with goodwill or compromises. Something (or someone) has to give. This ti...

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configuration

The Janitor’s Configuration Dilemma

2 minute read

The right amount of configurability in software has always bothered me. Most of the time when using off-the-shelf software I've wished for LESS options to ch...

Back to top ↑

writing

The Tellerrand Series

less than 1 minute read

I finally managed to put all twelve articles from my infamous series "Jenseits des Tellerrands" in the German Java Magazin online (as PDF files). It's a coll...

Back to top ↑

aging

Coming of(f) Age

less than 1 minute read

It's a fact that we all are getting older, some of us are even getting old. Nevertheless, it came as a surprise to me that in my current consulting and coach...

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coherence

How Cool is That?

less than 1 minute read

The latest version of Parallels Desktop for Mac comes with a feature called Coherence. It allows you to have MS Windows applications to be embedded in your s...

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mac

How Cool is That?

less than 1 minute read

The latest version of Parallels Desktop for Mac comes with a feature called Coherence. It allows you to have MS Windows applications to be embedded in your s...

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creationism

Software Design Creationism

1 minute read

In case you have known me or this web log for a while you probably know that I am all into the evolutionary style of software development. In other words, I ...

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csharp

C# is not Java is not C# is not Java

3 minute read

Switching regularly between .NET and Java definitely does not facilitate remembering the details of one platform or the other. For me, however, it made me se...

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cpp

Is C++ Suited for Agile Development?

less than 1 minute read

My personal opinion on this is "only barely - if at all". If you can read German then Jens Coldewey's very good summary of the problems you run into if you t...

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fitnesse

Refactoring FitNesse Tests

2 minute read

Have you ever had a Fit(Nesse) test suite of more than just a few pages? Have you ever tried to consistently change the names of test pages, fixtures, column...

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manifesto

Seven Years

less than 1 minute read

7 years ago the agile manifesto was published. Frank Westphal interviewed Henning Wolf, Jens Coldewey, Jutta Eckstein and myself about how we see, feel and l...

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podcast

Seven Years

less than 1 minute read

7 years ago the agile manifesto was published. Frank Westphal interviewed Henning Wolf, Jens Coldewey, Jutta Eckstein and myself about how we see, feel and l...

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resharper

One Little Step for JetBrains…

less than 1 minute read

... but a giant leap for dotnetkind. Via Tim Goodwin I learned that ReSharper 4.0 will have the Inline Method refactoring built in. I've never really underst...

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conference

The New and Open XP Days Germany

less than 1 minute read

Last year I was program chair of XP Days Germany. Although it was quite a success I wasn't really content with the old-fashioned process any more: submit ses...

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twitter

And the Birds they Are Singing

2 minute read

I'm definitely not the first one to write about their twitter experiences. I especially like this presentation because it sort of reflects my past two months...

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atheism

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parsing

Building Grammars (and Parsers) on the Fly

5 minute read

I've always felt that code generation is mostly a means to optimize performance of stuff (e.g. DSL execution) that could as well be done during runtime. I mi...

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teaching

Teaching in Impatient Times

1 minute read

Recently I held an in-house, two-day-workshop on pair programming and test-driven development. After having done similar workshops for almost a decade now, r...

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workshop

Business Experiments

less than 1 minute read

I'm currently running a triple experiment: For the first time in my career I'm trying to organize a public workshop completely on my own. The topic is Advan...

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concurrency

Simplified Use of Locks in Groovy

1 minute read

I am currently writing an article about the challenges and pitfalls of concurrent programming for a German software magazine. Since the magazine's readers co...

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locking

Simplified Use of Locks in Groovy

1 minute read

I am currently writing an article about the challenges and pitfalls of concurrent programming for a German software magazine. Since the magazine's readers co...

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crowdfunding

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tdddecrypted

On-site TDD

6 minute read

One of the recurring questions in TDD workshops is "How do I test private methods?“. My usual answer is worded along the following lines: "You don’t. Any pri...

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website

Migrated my Blog

less than 1 minute read

I migrated my blog to Github and Jekyll. What’s more to say about that?

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shrinking

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patterns

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validity testing

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postconditions

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metamorphic properties

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inductive testing

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model-based properties

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