Instructions

  • 1. Your final score will reflect your grasp of the concepts—approach each question with precision.
  • 2. Thoroughly review each solution before proceeding to ensure full understanding.
  • 3. Final results will be available after submission to provide insights into areas for further improvement.
  • 4. Maintain academic integrity—plagiarism undermines learning and professional growth.
  • 5. Once submitted, responses are final, so ensure you’re confident in your answers.
  • 6. These challenges are designed to test practical knowledge; apply your skills as you would in real-world scenarios.

All Problems

Question

Action

What is the primary goal of unit testing in JavaScript?

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Which of the following best describes a "unit" in unit testing?

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Why should we use unit tests in JavaScript?

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Which JavaScript function would most likely be tested with unit testing?

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Which of the following is NOT true about unit tests?

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What is a common challenge when writing unit tests?

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What should a good unit test NOT depend on?

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In unit testing, what is "mocking"?

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What is a "test suite" in unit testing?

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What should be tested in a unit test?

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What is the primary goal of unit testing in JavaScript?

To test the entire system for bugs
To test individual units or components of code
To validate the UI components only
To optimize code performance

Which of the following best describes a "unit" in unit testing?

A full webpage
An individual piece of code, such as a function
A library in JavaScript
A database schema

Why should we use unit tests in JavaScript?

It ensures all parts of an application work correctly in isolation
It decreases overall development time
It improves the application's performance
It allows the code to run faster

Which JavaScript function would most likely be tested with unit testing?

A function that interacts with a database
A utility function like adding two numbers
An external API call
Rendering a complex React component

Which of the following is NOT true about unit tests?

They test small, isolated parts of code
They are meant to validate individual units of functionality
They are responsible for testing the entire application
Unit tests are generally fast to run

What is a common challenge when writing unit tests?

Making the test cases run
Ensuring that the tests cover all edge cases
Writing reusable test code
Avoiding global variables

What should a good unit test NOT depend on?

External APIs
Mocked data
Test frameworks
JavaScript libraries

In unit testing, what is "mocking"?

Testing the entire system
Simulating a module's dependencies
Writing unnecessary tests
Automating the test process

What is a "test suite" in unit testing?

A collection of related test cases
A single test case
A large testing tool
A script for running tests on multiple environments

What should be tested in a unit test?

All parts of the application, including external services
Only the function's logic, ignoring external dependencies
The front-end UI components
Full integration of all components