Summary  
This chapter covers generating and analyzing test coverage reports in Jest and customizing which code files are included or excluded using collectCoverageFrom glob patterns.

General domain of usage  
Unit testing in JavaScript projects

The boilerplate format of `jest.config.js `file is:

```js
/** @type {import('jest').Config} */
const config = {
    // Options here
};

module.exports = config;
```

We use the `collectCoverageFrom` option to target or exclude specific files and folders.

Which command is used to generate a test coverage report in Jest?

Where is the default coverage report generated when running Jest with the `--coverage option`?

Build on top of your previously acquired Manual Testing knowledge and learn Automation Testing using Node.JS and Jest. This course will also introduce you to some additional libraries and tools like Selenium, Axios and Jenkins.

In this section, we will get an introduction to automation testing, both conceptually and practically. The application which we will be working on throughout this course will be briefly explored in order to familiarize ourselves with the work environment, and set the momentum for the rest of the course.

In this section, we will learn what Test Automation Frameworks are, why they are necessary, and how to use them. Most programming languages have Test Automation Frameworks, however, we will be using JavaScript to learn about one of the popular JavaScript Test Automation Framework known as Jest. Most of the concepts explored in this section will be transferable to other programming languages and frameworks.

In this section, we will learn how to perform more complicated tests in an automated manner, by automating the browser. This includes, automating user operations like visiting the website, inputting data into the fields and interacting with elements.

In this section, we will briefly explore some intermediate Automation Testing concepts like API testing using Jest and Axios, and setting up a CD/CI pipeline to streamline the whole testing process.

Test Coverage Report

1. Which command is used to generate a test coverage report in Jest?

2. Where is the default coverage report generated when running Jest with the `--coverage option`?

Test Coverage Report

1. Which command is used to generate a test coverage report in Jest?

2. Where is the default coverage report generated when running Jest with the --coverage option?

2. Where is the default coverage report generated when running Jest with the `--coverage option`?