Jan Van Ryswyck
janvanryswyck.mastodon.social.ap.brid.gy
Jan Van Ryswyck
@janvanryswyck.mastodon.social.ap.brid.gy
Owner @ Principal IT, husband, father of three, geek, XP / TDD disciple, author of Writing Maintainable Unit Test, enjoys running, fan boy of many things […]

[bridged from https://mastodon.social/@janvanryswyck on the fediverse by https://fed.brid.gy/ ]
There are basically three ways to verify the outcome of a test:
- Verify the state of the Subject Under Test.
- Verify the return value of a method or function.
- Verify a value passed to a collaborator of the Subject Under Test.

That's it! Those are the […]

[Original post on mastodon.social]
November 11, 2025 at 2:47 PM
November 8, 2025 at 2:13 PM
November 8, 2025 at 1:37 PM
Current view #shertogenbosch
November 8, 2025 at 12:15 PM
This Friday November 7, I'll be hosting my workshop "Testing Done Right" together with the Software Captains Academy. Are you interested to learn more about how to build quality software? Join me in this workshop were we're going to dive into the following […]

[Original post on mastodon.social]
November 4, 2025 at 8:03 PM
On 4 𝐚𝐧𝐝 5 𝐃𝐞𝐜𝐞𝐦𝐛𝐞𝐫 2025, I’ll be hosting my workshop 𝐖𝐞𝐥𝐥-𝐁𝐚𝐥𝐚𝐧𝐜𝐞𝐝 𝐓𝐞𝐬𝐭-𝐃𝐫𝐢𝐯𝐞𝐧 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 at the 𝐁𝐫𝐚𝐢𝐧 𝐄𝐦𝐛𝐚𝐬𝐬𝐲 𝐢𝐧 𝐀𝐧𝐭𝐰𝐞𝐫𝐩.

⏰ The early bird discount expires this Friday, 31/10! So don’t wait if you want to master the art of writing loosely coupled and […]

[Original post on mastodon.social]
October 30, 2025 at 8:46 PM
Last weekend, I had the privilege of attending SoCraTes Crete 2025 for the second time. It’s always inspiring to learn alongside the incredible people in this welcoming, diverse community. Huge thanks to the organisers for their hard work in making this […]

[Original post on mastodon.social]
October 29, 2025 at 7:36 PM
Current view #socratescrete
October 27, 2025 at 3:21 PM
Sliding into the final day of @socrates_crete 2025. #socratescrete
October 27, 2025 at 7:58 AM
Kicking of the second day of @socrates_crete #fomoisreal #socratescrete
October 26, 2025 at 7:44 AM
Ready for the first day at #socratescrete
October 25, 2025 at 7:00 AM
Arrived at #socratescrete
October 24, 2025 at 10:28 AM
It seems it’s going to be a private flight to #socratescrete
October 24, 2025 at 4:57 AM
With some delay, finally on my way to #socratescrete
October 24, 2025 at 4:52 AM
When using TDD we get to learn about the countless decisions we make while writing code. We make progress by iterating through short Red-Green-Refactor cycles. This mindset basically implies being satisfied with improvement, rather than expecting instant […]

[Original post on mastodon.social]
October 22, 2025 at 2:36 PM
Current view
October 19, 2025 at 9:44 AM
I just posted a a brand new retro house mix for those who enjoy listening to those old grooves.
https://soundcloud.com/dj-jakke/attic-jam-sessions-085-retro

#retrohouse #housemusic
October 16, 2025 at 8:38 PM
Last weekend, I attended the #socratesbe 2025 unconference. Open space retreats like SoCraTes BE means lots of learning, amazing conversations and a great deal of fun. Thanks to the organisers, the hosts and the attendees to make it a wonderful experience […]

[Original post on mastodon.social]
October 16, 2025 at 7:53 PM
I'm only half-way through the book, but I can already state that for me "The Arrogant Ape" by Christine Webb is by far the best book I've read this year. Exceptionally well-written and researched, it is my hope that future generations will look back at the […]

[Original post on mastodon.social]
October 10, 2025 at 7:03 PM
This two-day, hands-on workshop blends theory with practice in a real-world codebase. You'll be collaborating together with fellow attendees to master the art of writing loosely coupled and highly maintainable automated developer tests.

𝐑𝐞𝐠𝐢𝐬𝐭𝐞𝐫 𝐛𝐲 𝐎𝐜𝐭𝐨𝐛𝐞𝐫 […]

[Original post on mastodon.social]
October 9, 2025 at 12:13 PM
Alternatively, with Test-Driven Development (TDD), software developers start by writing a small test then write just enough code to make it pass, and iterate — building quality into software from the get-go instead of after the fact. This approach aligns […]

[Original post on mastodon.social]
September 30, 2025 at 8:13 PM
Finally found some time to make a new mix of the latest house music.
https://soundcloud.com/dj-jakke/attic-jam-sessions-084

#dj #djset #housemusic
September 25, 2025 at 7:00 PM
When naming tests, avoid using technical names of functions/classes. When we encorporate the name of a function into the descriptive name of a test method, and the respective function is later renamed, then the description of the test becomes completely […]

[Original post on mastodon.social]
September 23, 2025 at 6:59 PM
Today’s views
September 18, 2025 at 4:01 PM
After we’ve completed the Red-Green-Refactor cycle, when the design part is over, the test descends
into regression mode. At this point, it’s less about “designing” and more about “testing”
existing behaviour. That’s why it’s so important to start from a […]

[Original post on mastodon.social]
September 17, 2025 at 2:41 PM