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What you'll learn?
- The principles of TDD
- Know what React Testing Library is and its differences with Enzyme
- Understand how Jest works with React Testing Library
- Query elements with getBy, queryBy, findBy, getAllBy, queryAllBy, findAllBy
- Simulate user interaction with the fireEvent and userEvent API
- Learn about coverage and debugging
- How to mock third party libraries like Axios
- How to use Typescript with a React App
Course Overview
Welcome to testing React components with React Testing Library! In this course, you will learn lots of things. You will learn:
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The principles of Test Driven Development
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Know what is React Testing Library (RTL) and its differences with Enzyme (another popular test framework for React)
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Understand how Create React App (CRA) works.
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Understand how Jest works with RTL
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How to test with RTL and query elements with:
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getBy, queryBy, findBy, getAllBy, queryAllBy, findAllBy
-
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How to simulate user interaction with the fireEvent API
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How to simulate user interaction with the userEvent API
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Testing components in isolation (unit tests)
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Learn about coverage and debugging
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How to mock 3rd party libraries like Axios and mock a GET request
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Learn about the pitfalls of CRA
You will have all the fundamental tools to test any React component and have that coverage at 100%!
Have fun, and never stop learning!
Pre-requisites
- Be familiarized with React components
Target Audience
- Web developers
- Full stack developers
- Developers interested in TDD
- Frontend developers
Curriculum 21 Lectures 02:38:47
-
Section 1 : Introduction
- Lecture 2 :
- Introduction to RTL
-
Section 2 : Create React App
- Lecture 1 :
- Create React App behind the scenes
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Section 3 : Jest
- Lecture 1 :
- Understanding Jest
- Lecture 2 :
- Writing our first test
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Section 4 : React Testing Library
- Lecture 1 :
- Rendering a component with RTL
- Lecture 2 :
- Selecting elements with getByText
- Lecture 3 :
- Selecting elements with getByRole
- Lecture 4 :
- queryBy search variant
- Lecture 5 :
- findBy search variant (part 1)
- Lecture 6 :
- findBy search variant (part 2)
- Lecture 7 :
- findBy search variant (part 3)
- Lecture 8 :
- Querying multiple elements
- Lecture 9 :
- User interaction with the fireEvent function
- Lecture 10 :
- User interaction with the user event API
- Lecture 11 :
- Testing a component in isolation with the user event API
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Section 5 : Coverage and debugging
- Lecture 1 :
- Coverage
- Lecture 2 :
- Debugging
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Section 6 : A more complex example
- Lecture 1 :
- Creating a Pokemon component
- Lecture 2 :
- Testing the Pokemon component
-
Section 7 : More custom matchers
- Lecture 1 :
- Jest DOM library from RTL
Our learners work at
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Instructor
191203 Course Views
3 Courses
Hi! My name is David Armendariz and I am a software developer and mathematician. I have experience working as a Full Stack developer in different projects and I am myself a curious mind that tries to teach what I learn on a daily basis.
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