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JavaScript Unit Testing with Jest

Gabriel McNeilly

Unit testing is a vital part of software development. This course will teach you how to write unit tests for your JavaScript code using Jest.

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Unit testing is a vital part of software development. This course will teach you how to write unit tests for your JavaScript code using Jest.

Unit testing is sometimes neglected by software developers, but it is an essential part of a good developer’s skill set. In this course, JavaScript Unit Testing with Jest, you’ll learn to write unit tests for a range of JavaScript functions. First, you’ll explore why unit testing is so important for creating high quality software. Next, you’ll discover how to get started writing simple JavaScript unit tests. Finally, you’ll learn how to take your unit tests to the next level and handle a range of scenarios you may encounter. When you’re finished with this course, you’ll have the skills and knowledge of Jest needed to write unit tests for all of your JavaScript projects.

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What's inside

Syllabus

Course Overview
Writing Your First Unit Test with Jest
Exploring Common Matchers
Using Mocks
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Testing Asynchronous Code
Measuring Code Coverage

Good to know

Know what's good
, what to watch for
, and possible dealbreakers
Teaches unit testing with Jest, which is becoming industry standard for JavaScript
Taught by Gabriel McNeilly, an educator recognized for their work in JavaScript
Provides a strong foundation for beginners
May require that learners have basic JavaScript knowledge prior to taking

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Career center

Learners who complete JavaScript Unit Testing with Jest will develop knowledge and skills that may be useful to these careers:
Software Quality Assurance Engineer
Software Quality Assurance Engineers plan and perform tests to assess software quality and identify issues. Unit testing is a fundamental part of software development as it helps identify bugs and ensure that the software is working as expected. A course in JavaScript Unit Testing with Jest can provide Software Quality Assurance Engineers with the skills to write effective unit tests and contribute to the development process.
Software Tester
Software Testers plan and perform tests to evaluate the quality of software and identify issues. Unit testing is part of this process, as it helps identify bugs and ensure that the software is working as expected. A JavaScript Unit Testing with Jest course can provide Software Testers with the skills they need to write effective unit tests and contribute to the development process.
Quality Assurance Analyst
Quality Assurance Analysts plan and perform tests to assess software quality. Unit testing is essential for this career as it helps Quality Assurance Analysts ensure that the software meets specifications and customer requirements. This course, JavaScript Unit Testing with Jest, provides a foundation in unit testing concepts and techniques that can be applied to software development projects.
Software Development Manager
Software Development Managers plan, coordinate, and oversee software development projects. Unit testing is an essential part of software development as it helps ensure the quality and reliability of the code. A course in JavaScript Unit Testing with Jest can provide Software Development Managers with the skills to evaluate and improve unit testing practices within their teams.
Webmaster
Webmasters maintain and update websites, ensuring their functionality and accessibility. Unit testing is important for web development as it helps identify and fix issues in the code. A course in JavaScript Unit Testing with Jest could be beneficial for Webmasters who work with JavaScript-based websites.
Computer Programmer
Computer Programmers write, test, deploy, maintain, and evaluate computer software. JavaScript is a popular language for web development, and unit testing is crucial for ensuring the quality and reliability of web applications. A course in JavaScript Unit Testing with Jest could be beneficial for Computer Programmers who work with JavaScript.
Systems Analyst
Systems Analysts analyze and design computer systems, including hardware, software, and networks. Unit testing is a crucial part of systems analysis, as it helps ensure that the system meets requirements and performs as expected. A course in JavaScript Unit Testing with Jest could provide Systems Analysts with the skills to write effective unit tests for system components.
Computer Systems Analyst
Computer Systems Analysts design, implement, and maintain computer systems, including hardware, software, and networks. Unit testing is a crucial part of systems analysis, as it helps ensure that the system meets requirements and performs as expected. A course in JavaScript Unit Testing with Jest could provide Computer Systems Analysts with the skills to write effective unit tests for system components.
Information Technology (IT) Manager
Information Technology (IT) Managers plan, coordinate, and oversee IT operations within an organization. Unit testing is an essential part of software development as it helps ensure the quality and reliability of the code. A course in JavaScript Unit Testing with Jest can provide IT Managers with the skills to evaluate and improve unit testing practices within their teams.
Web Developer
Web Developers use programming languages like JavaScript to create a functional website. They often collaborate with Web Designers to transform the design into a functional site. A course in JavaScript Unit Testing with Jest could be helpful for this role since it can help Web Developers test code, such as JavaScript code.
Data Analyst
Data Analysts collect, analyze, and interpret data to provide insights and help organizations make informed decisions. Unit testing is important for ensuring the accuracy and reliability of data analysis, as it helps identify and fix errors in the code. A course in JavaScript Unit Testing with Jest could be helpful for Data Analysts who work with JavaScript-based data analysis tools or platforms.
Database Administrator
Database Administrators manage and maintain databases, ensuring their availability, performance, and security. Unit testing is essential for database development as it helps identify and fix issues in the code. A course in JavaScript Unit Testing with Jest could provide Database Administrators with the skills to write effective unit tests for database-related code or applications.
Software Engineer
Software Engineers design, develop, test, deploy, maintain, and evaluate computer software, such as computer games or operating systems. Software Engineers decide what the software should do, how it should work, and how users will interact with it. A course on JavaScript Unit Testing may be useful for this career as it would help Software Engineers write clear, concise, and readable unit tests to ensure the code's quality.
Technical Support Specialist
Technical Support Specialists provide technical assistance to customers and help resolve software and hardware issues. Unit testing plays a crucial role in software development, as it identifies issues early in the development cycle and ensures the software is stable and reliable. A course in JavaScript Unit Testing with Jest can help Technical Support Specialists understand unit testing concepts and troubleshooting techniques.
User Experience (UX) Designer
User Experience (UX) Designers design and evaluate user interfaces (UIs) to ensure they are easy to use and visually appealing. While not directly related to unit testing, a course on JavaScript Unit Testing can provide UX Designers with a better understanding of how software development works and how to collaborate with developers to create user-friendly and efficient UIs.

Reading list

We've selected six books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in JavaScript Unit Testing with Jest.
A comprehensive reference guide to JavaScript, covering advanced topics and best practices.
A classic book that covers the good parts of JavaScript and how to write clean and maintainable code.
Provides a comprehensive overview of JavaScript, including its core concepts and syntax.

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