Test duration:
20
min
No. of questions:
10
Level of experience:
Expert

Jest Skills Test

Jest is one of the JavaScript test runners, which is also called a JavaScript library for creating, running, and structuring various types of tests. It can be installed in any JavaScript project, and Jest also ships as an NPM package. Jest can reliably run tests in parallel form and is pretty fast and safe to run previously failed tests first. Jest makes any object mocking easy and simple outside your test scope. This test runner also generates good code coverage by covering information from entire projects. 


Jest skills test helps tech recruiters and hiring managers to assess candidates’ automation testing skills with the Jest framework. Jest skill assessment is designed by experienced subject matter experts (SMEs) to evaluate and hire Jest automation engineers as per industry standards.


The Jest skills test helps to screen the candidates who possess traits as follows:

 

  • Experience in running the tests by using the Jest library 
  • Good knowledge of Timer Mock, Mock Functions, Manual Mock, etc.
  • Good understanding of concepts like DOM Manipulation and Jest Enzymes
  • Knowledge of Snapshot Testing, Testing Asynchronous Code, and Configuration 

 

Jest skill assessment is a secure and reliable way of candidate assessment. You can use our role-based access control feature to restrict system access based on the roles of individual users within the recruiting team. Features like window violation, image, audio & video proctoring help detect cheating during the test.

 

This test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Whiteboard Questions, Audio / Video Questions, AI-LogicBox (AI-based Pseudo-Coding Platform), Coding Simulators, True or False Questions, etc. 

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How it works

Test Summary

Useful for hiring
  • Jest Automation Engineer
  • QA Engineer
  • Front-End Engineer
  • Full-Stack Developer
Test Duration
20
min
No. of Questions
10
Level of Expertise
Expert
Topics Covered
Shuffle

Jest Enzyme

Timer Mock

Shuffle

DOM Manipulation

Shuffle

Bypassing Module Mocks

Shuffle

Timer Mock

Shuffle

Mock Functions

Sample Question
Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.
Question type
Multiple Option
Topics covered
DOM Manipulation
Difficulty
Hard

Question:

Which of the following test will pass correctly?

test('DOM test', () => {
const html =
'<div id="root">' +
' <input type="text" id="text">' +
' <button id="button">Ok</button>' +
'</div>';
document.body.innerHTML = html;

const root = document.getElementById('root');

...
});


Options

  • expect(root).toBe(html);
  • expect(root).toEqual(html);
  • expect(root.innerHTML).toEqual(html);
  • expect(root.parentElement.innerHTML).toEqual(html);
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