Effective Software Testing

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July 2023

Test data builders or SQL files?
What's the best way to populate database data?
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Maurício Aniche
2

March 2023

Tests breaking because of mocks, what to do?
I had to suddenly change the internals of a class a couple weeks ago. This class was responsible for sending messages to our developers through our…
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Maurício Aniche

February 2023

Unit or integration tests?
It doesn't matter!
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Maurício Aniche
4

November 2022

How we can make it easy?
An example with code!
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Maurício Aniche
It has to be easy!
One of the biggest truths when it comes to developer testing is that it has to be easy! If it's not easy, we'll simply don't do it. We'll find lots of…
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Maurício Aniche
4
Divide to conquer
In enterprise systems, especially those that are a little distributed, a common argument against unit testing is that "in real life, most bugs occur…
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Maurício Aniche
3
Internals vs peers, a nice guide on when to mock
We are all past the idea that a unit testing has to only test a single class, isolating it from all its dependencies. We can, but it doesn't mean we…
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Maurício Aniche
1

October 2022

Why are smaller classes better than large classes?
In the amazing The Philosophy of Software Design, John Ousterhout argues that having large classes that implement the full expected behaviour can be…
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Maurício Aniche
1

August 2022

"I would have found this bug with E2E tests" is a fallacy!
No, you would not! In fact, I would argue that focusing solely on E2E tests can actually have the opposite effect, meaning, you will find less bugs.
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Maurício Aniche
1

July 2022

Intermediate data structures and observability
Being able to observe the behavior of the program is key in testing. And we should make sure it is always easy to do it. In a few cases, though, the…
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Maurício Aniche
2
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