JavaScript Unit Test Best Practices 

JavaScript Unit Test Best Practices 

Unit tests are very useful for checking how our app is working. Otherwise, we run into all kinds of issues later on. In this article, we’ll look at some best practices we should follow when writing JavaScript unit tests. Use Realistic Input Data We should use realistic input data in our tests so that we know what we’re testing with.

Unit tests are very useful for checking how our app is working.

Otherwise, we run into all kinds of issues later on.

In this article, we’ll look at some best practices we should follow when writing JavaScript unit tests.

Use Realistic Input Data

We should use realistic input data in our tests so that we know what we’re testing with.

To make generate fake data easily, we can use the Faker package.

It can generate names, username, company names, credit card numbers, and more.

For example, we can write:

it("should add product", async () => {
  const addProductResult = addProduct(faker.commerce.productName(), faker.random.number());
  expect(addProductResult).to.be.true;
});

We have a test to add a product with realistic names and ID number so that we can understand the result.

Test Many Input Combinations

We should test many input combinations.

This way, we won’t only choose cases that we know will make our test pass.

We can make the values random.

And we can also several permutations of some data in our test.

For example, with the fast-check library, we can create random combinations of data for our test:

programming technology web-development software-development javascript

Bootstrap 5 Complete Course with Examples

Bootstrap 5 Tutorial - Bootstrap 5 Crash Course for Beginners

Nest.JS Tutorial for Beginners

Hello Vue 3: A First Look at Vue 3 and the Composition API

Building a simple Applications with Vue 3

Deno Crash Course: Explore Deno and Create a full REST API with Deno

How to Build a Real-time Chat App with Deno and WebSockets

Convert HTML to Markdown Online

HTML entity encoder decoder Online

Offshore Software Development - Best Practices

To make the most out of the benefits of offshore software development, you should understand the crucial factors that affect offshore development.

Software Developer vs Web Developer | Difference Web Developer & Software Developer

Software Developer vs Web Developer | Difference Web Developer & Software Developer | Software development and web development are normally used interchangeably. Although both include development, a software developer has different responsibilities from that of a web developer.

ERP Software Services, POS Software Services , Application Development

Vinew Technologies focused majorly over ERP Software services and POS Software services, Web & Application development services & Woo commerce and Wordpress easy-to-use, multipurpose social media plugin for WordPress.

5 Core Criteria for Selecting Software Development Company - TopDevelopers.co

Check out these five criteria for the selection of your software vendor, and you will never regret having the wrong quality product made for you.

Offshore Software and Web Application Development Company- MobiWeb Technologies

Mobiweb Technologies is a prestigious IT company headquartered in Indore providing promising and cost effective software and web development services across the globe.