Free Jasmine JavaScript MCQ Questions and Answers — Questions and Answers

Question 1: Jasmine was created by

Pivotal Labs (Correct answer)
Pivotal Inc
Pivotal Company
Pivotal Solutions

Correct answer: Pivotal Labs

Jasmine, a popular behavior-driven development (BDD) testing framework for JavaScript, was originally developed by Pivotal Labs. Pivotal Labs is a software development consultancy known for its agile methodologies and contributions to open-source projects.

Question 2: As a testing framework, Jasmine is

Propriety
Open Source (Correct answer)
Versatile
Close Source

Correct answer: Open Source

Jasmine is an open-source testing framework. This means its source code is publicly available, allowing developers to freely use, modify, and distribute it. Its open-source nature fosters community contributions and widespread adoption in the JavaScript ecosystem.

Question 3: What had been created before Jasmine was created?

Screwunit
Jquery
JSunit (Correct answer)
RSpec

Correct answer: JSunit

Before Jasmine's creation, JSUnit was a prominent JavaScript unit testing framework. Jasmine emerged as a more modern, behavior-driven alternative, offering a cleaner syntax and built-in features like test doubles, which were often missing in earlier frameworks like JSUnit.

Question 4: What programming language was used to create Jasmine?

Python
Scala
Java
JavaScript (Correct answer)

Correct answer: JavaScript

Jasmine is a testing framework specifically designed for JavaScript applications. It is written entirely in JavaScript, allowing it to seamlessly integrate into JavaScript projects for testing both front-end and back-end code.

Question 5: Jasmine could be compared to a

Cross-platform framework (Correct answer)
Dual Platform framework
Single Platform framework
Al platform framework

Correct answer: Cross-platform framework

Jasmine is considered a cross-platform framework because it can be used to test JavaScript code across various environments. This includes web browsers, Node.js, and even mobile platforms through frameworks like React Native, making it highly versatile for different development needs.

Question 6: Jasmine initially came out in

2012
2014
2010 (Correct answer)
2017

Correct answer: 2010

Jasmine was initially released in 2010. Since its debut, it has undergone continuous development and updates, establishing itself as a widely used and respected tool for testing JavaScript applications due to its clear syntax and comprehensive features.

Question 7: The following are all characteristics of Jasmine, except.

Supports testing front-code
Make use of spies
Automation
Supports asynchronous testing (Correct answer)

Correct answer: Supports asynchronous testing

The question asks to identify which statement is *not* a characteristic of Jasmine. Jasmine is a JavaScript testing framework that explicitly includes built-in support for asynchronous operations, using mechanisms like the `done()` callback and `async/await` syntax. Therefore, 'Supports asynchronous testing' is actually a core characteristic of Jasmine, implying a potential factual error in the question or the designated correct answer.

Question 8: What distinguishes Jasmine from Mocha?

Readable syntax
Presence of test doubles in Jasmine (Correct answer)
Absence of command line utility in Mocha
Presence of command line utility in Mocha

Correct answer: Presence of test doubles in Jasmine

A key distinction between Jasmine and Mocha is Jasmine's built-in support for test doubles, such as spies, mocks, and stubs, through functions like `spyOn()`. Mocha, while also a popular JavaScript testing framework, typically requires external libraries like Sinon.js to provide similar test double functionality.

Question 9: Jasmine is in favor of the following, although

Compilation (Correct answer)
Test-driven development
Synchronous testing
Behavioral driven development

Correct answer: Compilation

Jasmine is a runtime testing framework for JavaScript, which is an interpreted language, and therefore does not inherently favor compilation as a core aspect of its testing philosophy. While modern JavaScript development often involves transpilation or bundling, Jasmine itself focuses on testing code in its execution environment rather than requiring a compilation step for the tests themselves.

Question 10: Aside from those listed below, Jasmine is influenced by

RSpec
Npm (Correct answer)
JSpec
JSSpec

Correct answer: Npm

Jasmine's syntax and philosophy were heavily influenced by other behavior-driven development (BDD) frameworks like RSpec, JSpec, and JSSpec. These frameworks provided the inspiration for Jasmine's readable `describe` and `it` syntax, which emphasizes describing behavior rather than just testing units. Npm, on the other hand, is a package manager and not a direct influence on Jasmine's testing methodology.

Question 11: Which Jasmine function is used to determine the number of times a function has been called?

`spyOnCount()`
`toHaveBeenCalled()`
`toHaveBeenCalledTimes()` (Correct answer)
`callCount()`

Correct answer: `toHaveBeenCalledTimes()`

The `toHaveBeenCalledTimes()` matcher in Jasmine is specifically used to verify how many times a spy or a mocked function has been invoked during a test. It allows developers to assert that a function was called an exact number of times, which is crucial for testing interaction counts.

Free Jasmine JavaScript MCQ Questions and Answers

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