Google c++ Test Mocking Framework Part - 4: Writing Mocks using c++ gtest and c++ gmock

[@renanrosa5527]

Currently the best tutorial about gmock in youtube.

[@Cognitive-Programmer]

Thanks for your comment...

[@BarathanG2502]

Watching this video in 2021 and it's still one of the best gmock tutorials

[@Cognitive-Programmer]

Thank you so much 🙏🙏🙏

[@sbsyr5555]

@@Cognitive-Programmer nl. Nlmb. N bbig pp. Cc o

[@valentinabonetti1808]

Best tutorial on Google Mock I've found so far! Clear and to the point. Thanks!

[@Cognitive-Programmer]

Thanks a lot for your comment 🙏🙏🙏

[@bilaln6896]

Great intro to gmock.

[@Cognitive-Programmer]

Thanks for your kind comment 🙏

[@truthadjustr]

Nice tutorial. At 18'30", your line 46 has type mismatch Init returns int but login2 returns bool. I was at first confused, but then it clicked on me when i realized that GMock can control the behaviour of a mocked function. GMock can make it return 69, for example. And then, the assert portion must do the necessary check.

[@Cognitive-Programmer]

👉 Follow my Learnings and Journey beyond software development 🎦 @ bit.ly/insightfuldaksh

[@游柏皓-q3w]

Thank you! This tutorial is very useful for me as a beginer.

[@Cognitive-Programmer]

Thanks for your comment 🙏

[@Jam18123]

thank you for a very nice tutorial. real case challenges - interface functions will not be virtual always, my component may not always have references.

[@spicytuna08]

i am a coder. i really didn't understand the complexities of testing. thanks again.

[@Cognitive-Programmer]

Thanks for your comment

[@huyvole9724]

If you using Sleep function, you will see how Mock setup (Mock don't do anything with any parameter, it will return your value), simple show for beginer

[@baqtronic7704]

I really liked all the parts of this series, it is everything very concise and well explained. Thanks a lot! I had some difficulties with the pronunciation, so maybe it could be helpful for others as well to add subtitles... Thanks again!

[@Cognitive-Programmer]

Thanks for your valuable comment.. I am working on a new series on the same topic and shall take care of things

[@mahimohanettumanoor1396]

Good video on Gmock .

[@Cognitive-Programmer]

Thanks for your comment 🙏🙏🙏

[@memphisraines6858]

Thank you for this tutorial! Absolutely fantastic!

[@Cognitive-Programmer]

Thanks for your comment

[@PranaySoniKumar]

Thanks you!! It brief, to the point and very useful to get started!

[@Cognitive-Programmer]

Thanks for your comment 🙏🙏🙏

[@DiegodeSousa]

Hello that's me again xD Another little feedback is that in last example that we are exploring the usage of ON_CALL macro to execute randomly login() and login2() member function using the rand() function we need to initialize random seed calling srand () function, otherwise member function login2() will be called in any circumstance. Thus, code should look like this: int Init(string username, string password) { srand (time(NULL)); int rvalue = rand() % 2; ... source: www.cplusplus.com/reference/cstdlib/rand/ I hope that it helps somebody.

[@Cognitive-Programmer]

Thanks again.. :)

[@wizardy6267]

Great video! only thing confused me was when you named a variable as 'rvalue' my first reaction was no~ it is not a rvalue and then my thoughts went to a totally different path about a whole different set of "?value" things...pretty much missed following 1 minute of your speech. Anyway, thank you for your help, this is a really good tutorial :D

[@Cognitive-Programmer]

Thanks for your comment

[@kevinduigou3212]

Very interesting video! Thank you from France!

[@Cognitive-Programmer]

Thank you very much for your comment

[@studywithdas4245]

very good tutorial

[@Cognitive-Programmer]

Thanks for your comment 🙏🙏🙏

[@dantheman8862]

Super helpful video. Thanks for this!

[@Cognitive-Programmer]

Thanks for your comment

[@huyvole9724]

Best ever! +1 like from Việt Nam

[@Cognitive-Programmer]

Thanks for your comment

[@eigenfield]

Thank you so much for this tutorial. Is Times(1).WillOnce(Return(true)) doing a redundant check? Since WillOnce already implies once, therefore we can remove the Times(1) constraint. Thanks for any insight on this regard.

[@matthewp4046]

Great video, thank you.

[@Cognitive-Programmer]

Thanks for watching my video and thanks for your comment 🙏🙏🙏

[@srijanshashwat1965]

Does 0,1 or 2 specify the no. Of arguments?

[@silviudema9315]

Great tutorials !

[@Cognitive-Programmer]

Thanks for your comment

[@beemavishnu]

Thank you for your detailed explanation. I have a query. Do we need to keep 'virtual' always in DataBaseConnect. I tried without keeping and getting error as "Actual function call count doesn't match EXPECT_CALL".

[@Cognitive-Programmer]

Yes when I created this video.. check in stackoverflow if there are any latest developments in this Thank you 🙏

[@BowDrawn115]

Very nice tutorial, how would you recommend to write a test that fetches some data from a database and also writes into it?

[@eigenfield]

You have to perfectly simulate such situations and never to use external subsystem that can possibly fail.

[@batluongnhan04_12]

dear all, i have a question, please see it help me! if in class MyDatabase, i have a function like : DataBaseConnect& returnOBject(){return dbC;} and, in the TEST function, i use db.returnOBject() instead of mdb inside EXPECT_CALL(db.returnOBject(), login()...).. it doesn't work, why? I know mbd is a referrence to dbC, but I just want to ask why it doesn't work. Thanks so much !

[@sheminaboobacker8411]

Can You explain how constructor of Mydatabase is created with reference of abstract class /interface

[@Cognitive-Programmer]

Hello You can initialize references in constructor using constructor initialization list and that's the reason for this code MyDatabase(DataBaseConnect & _dbc): dbc(_dbc) {} Hope it helps Thanks

[@Arti53hk]

Hello, if I inject a pointer of the calling class (injected class) instead of the reference, how can write the mock and the gtest for this special case ? ... Class MyDatabase{ DatabaseConnext* abc; Public: MyDatabase(DatabaseConnext* abc) : abc(abc) {} ; } ; Test (...,...) { MockDB* abc; MyDatabase db(abc) ; EXPECT_CALL(*abc, login(_, _)) // is this line correct? 😅 .Time(1) .willOnce(..); ... } When I make it, I get "segmentation fault" in the RegisterOwner() methode from class UntypedFunctionMockerBase

[@rishabhagarwal3404]

If anyone is having issue with installation and writing basic test. I have added a guide to installation with some sample code. github.com/rishabh-agarwal/googleTestDemo Hope this helps

[@bestganesh]

can we mock the function that calls std::thread function. e.g. void myfun() { std::thread(&threadfunction, this); } I want to test this function but I am getting error with terminate called without an active exception. That means thread is created and became out of scope and testing is terminated. :( Can you please tell me if it is possible to use std::thread in gmock?

[@rajeevdey_8894]

I think the test name should be InitTest. isn't itt?

[@LastOfThem-d8b]

For me biggest setback you can not mock non virtual function

[@aryamangupta3919]

How to mock static class used by another static static class?

[@theboringtechguy]

I am getting error while including gmock.h, it says no such file or directory. Please let me know what I am missing

[@Cognitive-Programmer]

Hello.. you have to install gmock separately… please see gmock GitHub page for installation instructions..Thanks

[@neohhueyli]

Hi Sir, how to mock non virtual function?

[@Sanatani-Bharat-108]

How to unit test class with static methods?

[@alyamajavier4963]

Hello Sir please give time to answer to my question. I am new to googletesting. I can't compile, it keeps displaying Usr/bin/id: cannot find -lgmock collect2:error: ld returned 1 exit status

[@ranjithks7]

Same error to me as well although I have added -lgmock

[@ranjithks7]

Download googletest source and compile yourself. It worked for me

[@PrashantAdlinge]

which editor you are using for code ?

[@Cognitive-Programmer]

Hello I am using Atom on Ubuntu

[@freddymartinez8741]

I got an error using Return inside WillOnce: "Use of undeclared identifier 'Return'" :(

[@freddymartinez8741]

i found the issue... i missed using namespace testing :D

[@Cognitive-Programmer]

Thanks

[@kid-vf4lu]

How often do you write mock-ups in practice?

[@Cognitive-Programmer]

Well it's bit subjective and depends upon the kind of the code. A not so perfect rule could be to use Mocks whenever you're using an API/interface which requires additional dependencies to run

[@sameddonater]

Thank you brother

[@Cognitive-Programmer]

Thanks for your comment 🙏🙏🙏