Stephan Kämper

Professionally, I test & write software as as self-employed software person. So far the businesses th...  
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2021

Sep 22, 2021
Sep 22, 2021
Contributed to Open Source Project
My first contribution to https://exercism.org got accepted: An improvement of some tests which are now using `assert_in_delta` for floating point numbers instead of `assert_equals`.

I noticed that there is an issue because a student I was mentoring had to round the result of a multiplication to make the tests pass, while my one solution didn't need this. For that particular exercise no solution should need rounding.

Remarkable: The only difference was the order of the operands in a rather simple multiplication: `x * y * z` resulted in a slightly different number than `y * x * z`.

Take care when processing flotation point numbers.
Aug 06, 2021
Aug 06, 2021
Update book
Started updating my ebook 'Fast Feedback Using Ruby' (see https://leanpub.com/fastfeedbackusingruby)… again.

It's still amazing how fast software versions and thus the software behaviour changes.

I already found some interesting changes how some of the tools have changes since their last release (with a minor version change).
Aug 06, 2021
Aug 06, 2021
Joined a Beta Test
Nice: Joined the TestFlight for Polywork's iOS app. 😀
Jul 02, 2021
Jul 02, 2021
Contributed to open source
Yay, I'm a Cucumber committer!
 ➙ https://github.com/cucumber

2020

Feb 01, 2020
Feb 01, 2020
Started a new role at hannover re
Excited to join hannover re as Software Tester! 🎉
Software Tester, hannover re

2019

Nov 04, 2019
Nov 04, 2019
Delivered a keynote
I gave a keynote "Being Lucky" at the Agile Testing Days 2019, in Potsdam Germany A summary of the talk is available at
https://seasidetesting.com/2019/11/25/being-lucky-a-keynote-at-the-agile-testing-days-2019/

It ended up as one of the top-ten sessions at the conference: https://www.agiletestingdays.com/atd-experience/2019/ — and one of the few that received standing ovations.
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