Why do we use JUnit with Cucumber rather using TestNg - cucumber

I can see in many cases that people prefer Junit rather than TestNg when they are integrated with the cucumber framework but I never understand the reason and benefit of using JUnit over TestNG.
If anyone knows the exact reason please help me to understand. Also, most of the tutorial videos are using Junit.

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What is the difference between Serenity BDD Framework and Cucumber tool

Today I've got some theoretical question. I have a little experience in BDD with Cucumber. Now I started working in API testing and I faced with Serenity BDD framework on my new project. It is used with Cucumber. So I would like to clarify what is the difference between Serenity BDD Framework and Cucumber and why can't we use just Cucumber for our tests, because it seems to me, like these two tools are doing the same job. Could anybody give me some explanation or maybe some link to correspondent documentation. Thanks in advance!
No, those are 2 different things.
Cucumber is the layer to map BDD syntax, which is written in .feature file, with actual code that does the job.
Serenity BDD is the framework supporting 3 different approaches:
Cucumber: same features as stand-alone cucumber, can work with UI or API Automation
Page Object: works with UI automation (selenium)
Screenplay: a design pattern for UI and API automation
Serenity BDD does many things for auto testers that:
Config-oriented: serenity.properties or serenity.conf. For example: take screenshot when FOR_EACH_ACTION, BEFORE_AND_AFTER_EACH_STEP, AFTER_EACH_STEP, FOR_FAILURES, DISABLED. This is really helpful for debugging. https://serenity-bdd.github.io/theserenitybook/latest/serenity-system-properties.html#_serenity_take_screenshots
Living report: much more better comparing to cucumber. https://serenity-bdd.github.io/theserenitybook/latest/living-documentation.html
Wrap other libs in nice and clean APIs: serenity-appium, serenity-browserstack, serenity-cucumber, serenity-rest-assured, serenity-saucelabs, serenity-shutterbug1x ... You see all of them at https://github.com/serenity-bdd/serenity-core

Cucumber+TestNG and Cucumber+JUNIT comparison

Can anyone please help me in understanding what is difference or advantages of using Cucumber+TestNG over Cucumber+Junit ?
TestNG provides more Annotations Like #BeforeSuite .
TestNG it self provides support for Junit.
With Latest upgrade of cucumber(4.0) Cucumber - TestNg provides Parallel Execution at Scenario Level where as Junit provides at Feature level.
TestNG and Junit are just a unit testing frameworks, when you use Cucumber with Junit you can use Junit Annotation/Assertions in step definition file and similarly when you use Cucumber with TestNG you can use TestNG Annotation/Assertions in step definition file.
Actually in both cases you would be writing the Test Steps using selenium and probably will use the classes inside JUnit or TestNG to run the cucumber Feature file.
As per my knowledge the only place I used such file was the when I'm creating the TestRunner.java class.
It's much easier to do with JUnit since you just have to import org.junit.runner.RunWith But if you are using TestNG you'll need to use dataProviders and go on a bit more complex path to create the TestRunner Class
Other than that there won't be any other differences since you will be using cucumber features for testing.
Due to the above mentioned advantage, I recommend to use JUnit + Cucumber + Selenium for your scripting
I tried both but decided for JUNIT 4.12 (JUNIT 5 does not seem to work with cucumber yet). It has all that you need. But i have to test that parallel thing in Test NG i guess. ;)
I use Cucumber in a Spring Boot Project and therefore JUNIT did not cause any problems for me. I can hand over a browser instance over multiple classes here (#Autowired) and this makes my code so much more modularizable.
You may have more annotation-options with Test NG but somehow i have the feeling that more people work with JUnit, so you have more support and a bigger community here.

How to test using Jest

I am new to Jest. Looking Jest as a unit testing framework, How can it be used for testing a website. I could found Jest examples applies to validation of Java script business functionalities but how can it be used for a website testing similar to Selenium. It would be really great if somebody could provide an update.
Thanks in Advance.
gtlkanth
Jest can't be used for end to end integration tests. It is focused on testing isolated features of your application's logic.
https://github.com/facebook/jest/issues/560

Trying to use mockito with Arquillian but having some problems

I was tring to use mockito with arquillian.
I used with simple JUnit and it runs fine although i am trying to figure out the deployment for arquillian which is where i think the problem is !!!
Can anyone help me to figure out ?
Thank you.
Here is the link to my junit file and pom file
When you're using external libraries in your tests, you must make sure those libraries have been added to the microdeployment.

unit testing for node.js

I looked into various frameworks for writing unit tests for an application developed in node.js. There exists multiple options like: nodeunit, jasmine-node, should.js library in Mocha. All seems to be pretty much capable of testing everything. I couldn't find any limitation of any of above mentioned options.
I will prefer to use nodeunit as it seems easy to use as a beginner. Any suggestion about any limitation of nodeunit would be highly helpful before I start working on this. Or any suggestion if anyone thinks that there exists a easier and better option for unit testing in node.js.
I previously used JUnit in Java and want to find similar testing framework. It was hard for me to getting started with BDD frameworks like Mocha. Finally I stoped on node unit. All advanced functions which I couldn't find in node unit was finded in expect.js. Also important testing framework in web application context is superagent(which helps to make requests, and get responce on tests), it was easy to mix with node unit, and easy to test async code. One more nice thing there is plugin for WebStorm :)

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