Unit Testing for Typescript NodeJs Developers with Jest

Unit Testing for Typescript & NodeJs Developers with Jest, available at $94.99, has an average rating of 4.62, with 103 lectures, 3 quizzes, based on 1513 reviews, and has 13065 subscribers.

You will learn about Basics of TypeScript unit testing with Jest Integration tests with TypeScript Test Driven Development (TDD) with Jest Unit testing React with TypeScript and Jest CICD with GitHub Actions and Docker Jest – the basics: hooks, assertions, matchers Jest – the advanced parts: aliases, custom matchers, snapshots Advanced unit testing techniques using Jest Database operations testing with Docker and Jest This course is ideal for individuals who are NodeJs or Typescript developpers willing to deeply understand unit and integration testing or React developers who want to test their apps or Developers who want to write robust and clean code or Developers who want to learn Jest It is particularly useful for NodeJs or Typescript developpers willing to deeply understand unit and integration testing or React developers who want to test their apps or Developers who want to write robust and clean code or Developers who want to learn Jest.

Enroll now: Unit Testing for Typescript & NodeJs Developers with Jest

Summary

Title: Unit Testing for Typescript & NodeJs Developers with Jest

Price: $94.99

Average Rating: 4.62

Number of Lectures: 103

Number of Quizzes: 3

Number of Published Lectures: 103

Number of Published Quizzes: 3

Number of Curriculum Items: 106

Number of Published Curriculum Objects: 106

Original Price: 39.99

Quality Status: approved

Status: Live

What You Will Learn

Basics of TypeScript unit testing with Jest

Integration tests with TypeScript

Test Driven Development (TDD) with Jest

Unit testing React with TypeScript and Jest

CICD with GitHub Actions and Docker

Jest – the basics: hooks, assertions, matchers

Jest – the advanced parts: aliases, custom matchers, snapshots

Advanced unit testing techniques using Jest

Database operations testing with Docker and Jest

Who Should Attend

NodeJs or Typescript developpers willing to deeply understand unit and integration testing

React developers who want to test their apps

Developers who want to write robust and clean code

Developers who want to learn Jest

Target Audiences

NodeJs or Typescript developpers willing to deeply understand unit and integration testing

React developers who want to test their apps

Developers who want to write robust and clean code

Developers who want to learn Jest

A must have skill for senior developers

Typescriptis getting more and more popularity and it is a required skill for many IT jobs. It’s key feature is type safety, thus preventing bugs.

But yes another skill is very important for any programming job: unit testing. Combining these two techniques will result in solid, robust and bug free code.

This course will go beyond the basics of unit testing and teach you all you need to write real world, complex testing suites for NodeJs and Typescriptapplications using the most popular JavaScripttesting library: Jest.

Using Jest as an unit testing library provides many advantages:

Unitary unit testing library for running and structuring tests

Extensive mocking, stubbing and spying capabilities

Powerful matchers to create simple to read tests

Jestships as one unitary NPM package

Jest is the default choice for TypeScript React projects

Why unit testing NodeJs apps?

Unit testing usually adds a lot to a code base, two or tree times in some cases. This also means that a lot of time needs to be invested in writing and setting up tests. But all this effort pays of: time, effort and headache of fixing bugs can be used for more fun activities.

What you will get from this course:

setup NodeJs and Typescript projects from scratch

implement unit testing with Jest

learn about unit testing configuration with parameters like: roots, transform, testRegex or verbose

learn about Jest test suites structure: describe with value, test, descriptions, hooks like beforeEach

basic and advanced assertions, comparing primitive types, objects or even errors

instantiating test double objects like mocks, stubs, spies or fakes.

write complex mock objectswhich can be used with “strange” JavaScript libraries.

inject doubles: directly inside the constructor, over the module or even using the objects prototype

learn about deep mocks and matchers to make your tests even better

integration tests for a NodeJsserver application

Conditionally and asynchronously skip tests

Dedicated sections on unit testing mocks:

Jest mocks, spies

How to use stubs

London/Chicago testing approach, with the advantages and disadvantages of each one

In this course you will learn how to use Test Driven Development (TDD):

Analyze the advantages of TDD

Hands-on practice with a great coding kata: password checker

Separate section on Jest Integration tests for Rest APIs:

learn how to setup integration tests

learn the difference between integration tests and unit tests

write integration tests for a Rest API with Jest

Dedicated section on Jest React unit testing:

How to test for React components with Jest

How to test Reactasync code

How to debug React Typescript apps

The examples used in the course follow very high coding guidelines for Typescript, NodeJs and React. Async/await syntax is used for clear and concise code, and of course, you will see how to test asynchronous code, on server, but also in the front end.

Course advantages:

Respect for your time: most of the time of the instructor typing is cut off, the course is focused on unit tests and Jest explanations

Concise:learn only what you need, no fillers to make the course falsely more appealing

Experienced and programming active instructor:a great teacher never looses touch with the industry. This is especially true for software development, where the industry is so dynamic. This helps the instructor stay up to date with the best coding guidelines and present you the challenging parts, not the “hello world”

Organized course structure: six parts, progressive approach, consistent content

Code changes in each lectureon Git with code diffs: this will help you get an concise overview of the lecture and correct in case you missed something

Big font, dark background, fullHD content, this way it is readable even on a small screen or even tablet.

Lifetime access

Certificate of completion to present to your current or prospective employer

Do you want your Typescript or NodeJs code to have the best quality, and your project to be safe?

Enroll and start writing your tests in 10 minutes!

Course Curriculum

Chapter 1: Getting started

Lecture 1: How to take this course

Lecture 2: Lets connect!

Lecture 3: Tools we will need

Lecture 4: Why we need tests

Lecture 5: Course resources access

Chapter 2: Basics of testing with Jest

Lecture 1: Section intro

Lecture 2: Jest introduction

Lecture 3: Jest project setup

Lecture 4: Structure of an unit test

Lecture 5: Jest assertions and matchers

Lecture 6: Multiple tests structure

Lecture 7: Parametrized tests

Chapter 3: Intermediate testing topics

Lecture 1: Section intro

Lecture 2: F.I.R.S.T. principles

Lecture 3: Jest hooks

Lecture 4: Testing for errors

Lecture 5: Jest aliases and watch mode

Lecture 6: VSCode debug configuration

Lecture 7: Coverage

Chapter 4: Test Driven Development with Jest and TypeScript

Lecture 1: Section intro

Lecture 2: Test Driven Development intro

Lecture 3: Coding Katas – password checker

Lecture 4: PassChecker setup

Lecture 5: PassChecker Iteration 1

Lecture 6: PassChecker Iteration 2

Lecture 7: PassChecker Iteration 3

Chapter 5: Test doubles in Jest

Lecture 1: Section intro

Lecture 2: What are test doubles

Lecture 3: Stubs

Lecture 4: Fakes

Lecture 5: Mocks

Lecture 6: Spies

Lecture 7: Mocking modules

Chapter 6: Test doubles in practice

Lecture 1: Section intro

Lecture 2: Project presentation

Lecture 3: Project installation

Lecture 4: Testing arrays

Lecture 5: Mocking consumer classes

Lecture 6: Injecting mocks

Lecture 7: Explaining tests

Lecture 8: Event based app – tests

Lecture 9: Server tests 1 – setup

Lecture 10: Server tests 2 – advanced debugging

Lecture 11: Server tests 3 – prototype spies

Lecture 12: Finishing the tests

Lecture 13: High mock tests conclusion

Chapter 7: Low mocks tests

Lecture 1: Section intro

Lecture 2: Building testing wrappers

Lecture 3: Setup tests

Lecture 4: Finishing tests

Lecture 5: Low mock tests conclusion

Chapter 8: Integration testing

Lecture 1: Section intro

Lecture 2: Understanding integration tests

Lecture 3: Integration tests setup

Lecture 4: Writing integration tests

Chapter 9: Other testing topics

Lecture 1: Section intro

Lecture 2: Environment variables

Lecture 3: Multiple test configurations

Lecture 4: Snapshot testing

Lecture 5: Custom matchers

Lecture 6: Exploring the NodeJs test runner module

Lecture 7: Testing frameworks comparison

Chapter 10: React unit testing with Jest

Lecture 1: Section intro

Lecture 2: Simple React Typescript app setup

Lecture 3: Generics, state, props

Lecture 4: What we will test

Lecture 5: First tests – rendering React TypeScript components

Lecture 6: React testing library: query for elements

Lecture 7: Testing user interaction

Lecture 8: Testing async updates

Chapter 11: CICD with GitHub actions and Docker

Lecture 1: Section intro

Lecture 2: Section resources

Lecture 3: GiHub actions

Lecture 4: Pipeline with Jest tests

Lecture 5: Local DB testing with Docker

Lecture 6: Docker on Github actions

Chapter 12: Course conclussions

Lecture 1: Choosing a work project

Lecture 2: Ending lecture

Chapter 13: TypeScript recap

Lecture 1: TypeScript presentation

Lecture 2: Running TS code

Lecture 3: Types in Typescript

Lecture 4: User defined types

Lecture 5: Optional properties

Lecture 6: Type guards

Instructors

Alex Dan
Cloud Tech Lead, TypeScript Champion, active Instructor

Rating Distribution

1 stars: 15 votes

2 stars: 23 votes

3 stars: 152 votes

4 stars: 472 votes

5 stars: 852 votes

Frequently Asked Questions

How long do I have access to the course materials?

You can view and review the lecture materials indefinitely, like an on-demand channel.

Can I take my courses with me wherever I go?

Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don’t have an internet connection, some instructors also let their students download course lectures. That’s up to the instructor though, so make sure you get on their good side!