Repositories

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My repositories where I have my code for blog and private projects:

github

bitbucket

Popular posts from this blog

When we should use Mockito on Unit test?

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As I mentioned, I would like to tell you something about Mockito on unit tests. You should know about where use unit test, because I will use that context for this post. What Mockito is? I changed my thinking about Mockito object and this step allows me to use it only in a good place for it. I think about Mockito objects only like data source (on "given" section) and communicate with other system (on "then" section). Why? Because I think when you use a lot of Mockito objects, you don't have a single responsibility in testing code. You use mock or stub for a lot of objects, because you think that part of the code isn't currently important. I don't think that it doesn't important if you have on that method. Maybe it should be another function in another place. When you think like me, You will use it only for a really important place for it. What can I stubbing? As I mentioned You can stubbing data sources. This is a good place for it, because Y...
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How correctly imitate dependencies?

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This is continuous of my previous post about why we should imitate our dependencies. I did it not long ago. I though about how do it properly and when I can say that it is correct. Start from test and real dependencies I am starting from the tests. I wrote the simple tests which, I though, are correct. That was my learned about dependencies. I had the good situation that I had some prepared tests before. During the writing test I got a knowledge. A lot of time, I verified what the system return. After it, I got the full automated tests for my dependency. Now, I am sure that dependency works like I think. Like my test use it. I think this is a very good advantage. Extract the interface for communicating The implementation to communicate is implemented and tested. Our test, if you implement it like functionality test, not code test, should show us, how we want to use our dependency. We know what parameters we use, what methods. We know what we want. That is a place where we must extr...
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Czysty kod - komentarze

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Przedstawię tutaj moją opinie (opartą na doświadczeniu, książkach oraz opiniach innych ludzi) na temat komentarzy w kodzie. Co to są komentarze? Wiem, każdy wie co to są komentarze. Przedstawię tutaj tylko inną definicje komentarzy. Komentarze to ZŁO (czasami konieczne). Zaraz dowiecie się dlaczego. Komentarze opisujące kod Jestem całkowitym przeciwnikiem komentarzy, ale często sam je stosuje. Zapytać teraz możecie "ej, ale dlaczego?". Wykorzystuje je właśnie jako pomocnik do poprawy czytelności cudzego, a nawet czasami swojego, kodu. Staram się nie zostawiać komentarzy w kodzie. Są one półśrodkiem do refaktoringu. Refaktoring dużej, brzydkiej i nieczytelnej funkcji zaczynam właśnie od podzielenia kodu tej funkcji na sekcje i napisaniu odpowiedniego komentarza opisującego te bloki kodu. I tutaj właśnie zauważyć można dlaczego tak surowo oceniłem komentarze. Uważam, że komentarze po prostu próbują zaślepić użytkownika kodu, aby nie zauważył, że jest napisany źle i nieczyte...
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