JUnit Testing using Mockito and Power Mock - SpringBoot | JavaTechie

This video will explain you how to mock private,static and final method using power mock-api
#JavaTechie #SpringBoot #PowerMock
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[@francksgenlecroyant]

Hi Bassant, 5 years later and this is still relevant 👊

[@mukundpatel1768]

Very nicely explained. I have used your way and implemented unit test ... Thanks

[@pratapsingh-le2br]

Really Help full to the interview prospective Thank' you Basant Bahi :) Great Effort Keep Going

[@shiskeyoffles]

I am currently working in a company and my Job is to write unit test cases and this is really helpful. Thank you.

[@Javatechie]

Thanks Holmes, More test case video is on the way using rest assured and TestRestTemplate Will upload soon

[@chetanbhandari3033]

Hi awesome video and explained very well with use case pls.create multiple scenario and all junit and test case series which will help day to day programing

[@rameshchowdarykonka5551]

Tq.. Just now i am searching for........Again Tq........

[@shivakamlikar2144]

I am very happy..... Your explanation is awesome and very helpfull for development

[@Javatechie]

Thanks dude , keep watching

[@shalinishalu3465]

Great. . really helpful. Thanku

[@gaurav16413]

Great Tutorial Sir..

[@MrMadhavsai]

great explanation bro

[@veenatiwari8621]

Thanks a lot sir for so knowledge video , kindly make a video for test case of predicate and specification.(dynamic query JPA criteria.

[@Javatechie]

Okay i will

[@sabakaiser4505]

This is a good tutorial to know how to use power mock, but before this if setup part is explained it will be helpful.

[@Javatechie]

Hi Saba , there is no additional set up as far I know , all required step I. Mentioned in video . Please do let me know anything else if I can help you

[@TheTubepc]

@@Javatechie if you can provide github link it will be useful

[@salamomran1507]

thank you sooo much

[@PankajKumar-qk8oh]

Helpful video👍

[@literatebasics6305]

Good video. Worth watching. Can you please do more videos on Power Mockito ?

[@Javatechie]

Sure will do

[@saktiranjanbehera7010]

Thanks Bhai

[@ravishakya8605]

Hi, Can you suggest how to write test cases for protected method?

[@shanmugapriya3762]

I want to access static method so I used powermockrunner class..while executing test case I'm getting like initialisation error.do I needs to add any configuration?.how to solve?

[@brianspinos]

What are the dependencies (with versions) ?

[@shivakamlikar2144]

Bro... You can upload spring batch related junit test cases with power Mockoto

[@Javatechie]

I don't think we need to write test case for spring batch With power mock You can go for mockito by mocking batch service

[@rahimkhan-fh9dd]

tutorial was more helpful, Can we use mock instead of spy in private method like PowerMockito.mock()?

[@Javatechie]

Yes we can

[@dattun976]

hi bro, nice tutorial... can we do testing for inner class ? and also how to test lambda expression code ?

[@Javatechie]

We are writing test case for outer class right so inner class will be execute by any member from outer class . So I don't think we need to write test case for it .but yes if you want to achieve code coverage then you must have to cover test case for it .

[@dattun976]

@@Javatechie I'm trying to cover the inner class while testing one service layer method,but the problem here is, Mockito is not covering the inner class code and simply it is skipping that inner class code .kindly suggest a way to solve this issue. and Thank u v much for the reply.

[@Javatechie]

Dattu I will check and update soon

[@dattun976]

@@Javatechie Thank u :)

[@o7n71a0453]

But in code coverage the private method lines will still not get covered right

[@blaxminarayanpatra7311]

Hi Bro, Suppose I have one method inside multiple private methods inside each method have multiple methods in that case should I maintain test case for all method or I will ignore (In realtime) Thanks In advance.

[@Javatechie]

No we should ignore only for actual business you need to write one positive and one negative scenario

[@dattun976]

HI bro, Code coverage is showing 0 % when I use powermockito to run test cases. even I've tried to run your example but still showing 0% as code coverage. do we need to do any changes in configuration? if yes.. please reply ..

[@Javatechie]

There is some issue with power mock and code coverage , I already reported a bug for it ...once I will get updates will let you know ok

[@dattun976]

@@Javatechie thank u bro for the reply :)

[@Deepika_Durairaj]

Can I use powermock with java 17?

[@javadream6085]

Do you know how to debug this test cases using powermock. Because i am trying to debug this but all my endpoints are skipped. Same is working fine with mockito but with poermock i am not able to debug.

[@Javatechie]

Debugger should work for any implementation let me check

[@manishnegi2882]

could you please share the dependency version that you used I got the exception "Class not prepared"

[@Javatechie]

Please check source code link in video description

[@hiteshupreti4250]

why we are using "spy" for private and final methods??

[@architbaba1]

Please autowire some class and give example for complex

[@shaikshasayyad131]

Could you please upload a complete spring boot-microservices application?

[@Javatechie]

Yeah am planning to do that but before that I would suggest you to go through all spring Boot video where I explained each component of microservice like Eureka,zuul, hystrix etc...

[@shaikshasayyad131]

I've completed watching them. I'm eager to see the complete microservice application. Thanks for a quick reply

[@Javatechie]

@@shaikshasayyad131 cool will do soon

[@CodeWithJava114]

getting error that "Failed to find the modifires field in method setInternalstate " pleae help

[@sureshdhulipudi600]

How to write power mockito for private methods and After writing unit test cases if we click "Coverage As" it should cover those private methods as well. thanks in advance :)

[@Javatechie]

Power mockito won't provide you mechanism for coverage You need to use Jacoco for coverage

[@sureshdhulipudi600]

@@Javatechie, without any errors, test cases are executing but coverage is not happening for private methods in both IDE and Jacoco report.

[@sureshdhulipudi600]

we are using activiti bpm with spring boot in our project, so there only protected methods in those classes, that methods directly call by activiti bpm.

[@amargupta1728]

Nice but How can we run Power Mock with spring boot 2.3 and mockito? @RunWith is not available with Boot 2.3 so please suggest

[@Javatechie]

You can directly run using @SpringBootTesr

[@amargupta1728]

@@Javatechie I tried but didn't get PowerMockito and its helper classes

[@user-zy2le5gh6n]

how to mock final class using power mock-api, bro?

[@pviswatmula]

In the addDiscount method, you are setting discount amount to price when the price is less than or equal to 1000. Should n't the discount amount be zero though.

[@Javatechie]

Yup you could add that

[@pviswatmula]

@@Javatechie Nice tutorial except the logical error. Do you really want to give 100% discount when price is less than or equal to 1000?

[@maheswarareddy6783]

when we should use fail() method in JUnit testing

[@subhojit1741984]

Hi,I am getting error "java.lang.reflect.InaccessibleObjectException: Unable to make protected void java.lang.Object.finalize() throws java.lang.Throwable accessible: module java.base does not "opens java.lang" to unnamed module" while running in Intellij IDE.Kindly help

[@user-xz4ck2vv8o]

Have you resolved it? Even I am getting the same error

[@aditigupta6870]

Is there a need to write init method here? You are doing mockinits on NotificationService class but there is no mock intialisations there, so what is the need of doing this?

[@Javatechie]

Yes it requires only if you want to pre initialize something

[@SHIVAMSRIVASTAVSIEC]

I am getting unrooted test error please help me

[@nikhilraj9524]

I stuck because after using powermock also private method is being called.

[@salauddinansari2072]

Hello, Sir, I want to learn SpringBoot step by step please help me

[@Javatechie]

Yeah sure please let me know your doubts

[@salauddinansari2072]

thanks for your reply. I'm a beginner but already know about Core java servlet. No doubt any but i want to know how to make a project using spring-boot and java

[@Javatechie]

I would suggest you to learn spring first before moving forward to spring boot

[@sushilkumarpandeypandey1087]

why @InjectMocks is used why not @Autowired ?

[@Javatechie]

@,Autowired will create a new object where injectMock will give u proxy object instead of actual object

[@sushilkumarpandeypandey1087]

can u explain the difference between proxy object and mock object

[@Javatechie]

Mock object means proxy object

[@sushilkumarpandeypandey1087]

that means instead of @InjectMocks we can simply use @Mock also

[@sairamreddy500]

Can we mock enum methods?

[@Javatechie]

Yes we can

[@sairamreddy500]

Thank you for confirmation. Could you plz provide short video or code sample on it.

[@saketkumar6671]

Code is Not visible

[@Javatechie]

Where in video or in git ?

[@swadhin1985]

You are uploading video on youtube, but you don't know pom is very importing, you are not showing pom files, so this is not informative

[@Javatechie]

Yes I agreed Going forward I will show pom

[@swadhin1985]

@@Javatechie Can you please upload a single video on spring boot, junit, mockito and power mockito with details pom, I hove you will upload thanks in advance

[@kuldeepmishra7889]

Visibility is not clear

[@Javatechie]

Kuldeep video resolution is 1080 HD Please check your internet connection ,if it is not strong then default it will play on 360 resolution. So try with good internet connection