Test Lightning Web Components with Jest Framework Prerequisites: 1. Before installing sfdx-lwc-jest install Node.js and npm. 2. Node.js : This page lists two releases of Node.js. We recommend using the “LTS” (Long Term Support) version, rather than the “Current” version. Install Jest and Its Dependencies into Your Project npm install @salesforce/sfdx-lwc-jest --save-dev To Run test: npm run test:unit Component Folder Structure Create a folder named __tests__ at the top level of your component’s bundle directory. Update .forceignore with **/__tests__/** Test File Naming Conventions: Test files must have names that end in “.js”, and Salesforce recommend that tests end in “.test.js.” Jest runs JavaScript files in the __tests__ directory Example of package.json: { ... "scripts": { ... "test:unit": "sfdx-lwc-jest", "test:unit:watch": "sfdx-lwc-jest --watch", "test:unit:debug": "sfdx-lwc-jest --debu...
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