Testing with golang and testify - mocking - tutorial part 3

This is the last part of my testify tutorial series. In this video I am going to explain how to create and use mocks. I am also reusing what we learned in part one and two and show you how to use mocks with a real world example. I am also showing some best practices and teach you to become a fully fledged testing master.
github repo:
github.com/thomaslanghorst/te...
Links:
github.com/vektra/mockery
github.com/stretchr/testify
Playlist:
• Advanced go tutorials
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#programming #coding #golang

[@vladf7180]

It is the BEST video about this topic which I've watched! I've spent last two days improving my golang test skills and your video helps me better then other.

[@ThomasLanghorst]

Wow, thank you so much! It makes me really happy to hear, that my videos help you! Is there another topic you would like to see as well?

[@kyryloantoshyn]

Go testify go! Thank you for valuable lessons! :)

[@TrentRosenbaum]

GO TESTIFY GO!!

[@JohnDoe-ji1zv]

Very informative and straight to the point 👍🏻 thank you

[@ThomasLanghorst]

Thank you very much! I am glad you liked it!

[@fadhlirahim]

that intro song is fire

[@akshayhiremath3077]

go testify go!!

[@zaphkiel_3371]

Awesome! Could you make another video explaining the controller-service-repository architecture in more detail?

[@ThomasLanghorst]

Thanks for the feedback! In the next few videos, I will not do any tutorials. I want to get better at storytelling and thumbnails. But I will keep this one on my "people wanna see"-pile.

[@aboba8656]

GO TESTIFY GO!

[@giftfelix4848]

This is really great.

[@ThomasLanghorst]

Thank you so much! Glad you enjoyed it. Hope you actually learned something 😅

[@giftfelix4848]

@@ThomasLanghorst Sure

[@MaximRovinsky]

that tutor on next up, thanks for tough staff💪

[@ThomasLanghorst]

Hey again :D Thank you very much for the comment! It's really appreciated!

[@AssyrianMuscle]

Amazing content!

[@ThomasLanghorst]

Thank you so much. Glad you liked it!

[@VincentSCHOENER]

I'm a bit lost between the Original struct/interface implementation and the mock one because in a normal case we don't send the reference of the object if we use the provider manually, but with the mock one, we need to send the reference (&priceProvide). Why?

[@Nicholascarballo]

Go testify Go!

[@ultiumlabs4899]

thanks, it helps a lot, you've covered many areas. as for mock struct, You've explained how to test a service that calls DB repository (GET), but, I still don't know how to test a service that calls DB repository for PUT/POST (have no return value). Would you give me some references I could look up for now (and may be you could create part4). Thank you.

[@ThomasLanghorst]

Hey, thanks for asking this awesome question. This is a very common usecase, so I am glad you asked! The easiest way is to check if the mock got called with the correct argument. You can do that by using the AssertCalled() function on the mock. Example: 1. let the mock know how to behave if "Insert" gets called: mockRepo.On("Insert", mock.Anything).Return(nil)

[@ultiumlabs4899]

@@ThomasLanghorst thanks, I got new insight again.

[@ThomasLanghorst]

Glad I can help. If you have more questions, feel free to ask anytime.

[@Golandia]

This video promises that I will be a master in testing... let's see

[@swagatochatterjee7104]

Ok, testify is indeed cool. I now can 1:1 map between Junit and Testify

[@ThomasLanghorst]

JUnit was actually one of my favourite things about Java. Have you switched from Java to go too?

[@swagatochatterjee7104]

@@ThomasLanghorst yes. The slow start and the stupendous resource hog JVM made me switch to Go. Go is C with stupidity protector built in, so that you dont shoot your foot. The only complaint I have till now is that it is kind of bit verbose. However, as they say clear is better than clever.

[@ThomasLanghorst]

I totally agree! Go IS! verbose. But tbh, I don't mind.

[@000LightWalker000]

Go testify go🎉

[@dharavathsuresh8838]

What if you want to write testcase for List and Latest functions ? How can that be done ? Mocking the entire the List and Latest functions will not give more code coverage. Is in't it ?

[@vasiliyaristov7148]

Thanks

[@max_ishere]

Testify LETS GO

[@TravisKeenan]

"GO TESTIFY GO"

[@josephkoester7051]

Yes man but great test...

[@CarlosHenriqueDuartedeCarvalho]

Go testfy Go

[@user-so5vj9ux7z]

Bad tutorial

[@nils.8335]

I disagree

[@sonamdhingra]

GO TESTIFY GO!!

[@yashkhare7308]

GO TESTIFY GO!!