Nodejs Express - unit testing/integration tests with Jest

Name: Nodejs Express - unit testing/integration tests with Jest
Price: 9 USD
Availability: InStock

2h 48m 43s

English

Paid

April 29, 2024

Learn how to write a full CRUD REST API with Nodejs, Express and Jest using the test-driven development method! TDD is becoming more and more of standard, and for good reasons! With TDD, you can feel more safe and secure that any changes you make are not breaking existing functionality in your applications. Manual tests cannot be sustainable in large applications, or even medium applications. Plus, they're incredibly tedious.

Without TDD... well, you know the story. You try to add functionality while trying to touch the existing code as little as possible, because you don't want to break things unintentionally..

With TDD you won't be scared to make big refactors in your code to clean up messy code, you will know quickly if you've broken any existing functionality!

I'll show you step-by-step how to create a REST API with Express with unit tests and integration tests using the Jest test framework. There's going to be lots of opportunities for you to work on your own and do some exercises as well for optimal learning!

If you have any questions or suggestions to the course, feel free to message me anytime, I love interacting with my students!

Who this course is for:

Students somewhat familiar with Nodejs who wants to learn how to make production-ready software with TDD

Requirements:

Basic JavaScript ES6
Some familiarity with Nodejs Express is a plus

What you'll learn:

Learn how to make unit tests
Learn how to make integration tests
Learn how to create a Express REST API from scratch
Learn how to build a Express REST API with test-driven development
Learn how to mock Mongoose models in Nodejs with Jest
Learn how to use Jest with TDD to build a REST API
Learn how to use MongoDB with Mongoose together with Jest tests
Learn how to write tests for error handling

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#	Title	Duration
1	Initialising project	01:19
2	Hello World Express REST API in less than 5 mins!	03:51
3	CRUD Methods we are going to build the TDD-way in REST	01:31
4	Short intro to Jest + How to install Jest in our project	00:40
5	Our first test with Jest and Express REST API	03:56
6	Making our first test with Jest + Express REST API pass!	01:17
7	Make Jest run automatically on file changes	01:22
8	Defining a data model for our Todo items with Mongoose	03:28
9	Using jest.fn to mock our Mongoose model functions	04:05
10	Making our test with Jest mock model pass	01:41
11	How to configure Jest test environment	01:29
12	How to mock Request and Response objects in Express API	03:23
13	Writing test with mock Request object and making it pass!	02:46
14	Using beforeEach in Jest tests	01:18
15	Testing if response code is 201 and response is sent	02:37
16	Test if response is sending back JSON body	04:48
17	Creating our first integration test with Supertest and Jest	06:36
18	How to make our Express app ready for integration testing	01:50
19	Creating our Express Router	03:16
20	How to debug tests in Jest	02:09
21	Setting up Express JSON request body middleware	01:01
22	Fix for address already in use error	01:05
23	Making our controller function use async/await	03:01
24	Setting up our MongoDB database in the cloud!	02:04
25	Creating a MongoDB database user	01:25
26	Connect to MongoDB database with Mongoose	03:18
27	Modify our unit tests to use async/await	03:30
28	Creating a server.js for running our Express REST API manually	02:09
29	Manual Testing with Postman	03:06
30	Oops! We're missing error handling!	02:56
31	Unit tests for error handling	03:17
32	Making our error handling unit test PASS	00:55
33	Creating a integration test for error handling	01:42
34	Manual test for error handling	01:15
35	Making a test for errors returning JSON body	00:48
36	Create middleware to parse errors in JSON	02:31
37	Making all of our tests pass and final manual test!	02:03
38	Intro + first test exercise	01:27
39	Making first test for getTodos pass	01:37
40	Test if TodoModel.find is called	03:23
41	Test if response is being sent back correctly	04:34
42	Test for error handling	03:48
43	Integration test for GET /todos	03:59
44	Manual test with Postman	00:57
45	Intro + Getting first test done	02:43
46	Creating mock function TodoModel.findById and test for calls	03:15
47	Exercise! Make test for response and make test pass!	01:44
48	Solution to response testing with getById()	04:20
49	Error handling unit test	02:54
50	If TodoModel could not be found in database	02:31
51	Integration test for GET /todos/:todoId	03:58
52	404 Integration test + final manual tests	03:08
53	Intro to PUT method and first test	01:07
54	Test if TodoModel.findByIdAndUpdate is called	04:50
55	Test if PUT response is sent back	03:07
56	Test HTTP PUT error handling	02:18
57	HTTP PUT 404 test	02:10
58	HTTP PUT Integration test	03:59
59	Using Jest.mock instead of multiple Jest.fn + Intro to final challenge!	02:59
60	Unit tests for HTTP Delete method	08:15
61	Integration test for HTTP Delete Method + manual test + you are awesome!!	06:12

Nodejs Express - unit testing/integration tests with Jest

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