Lightning Aura Components Developer Guide

What Is the Lightning Component Framework?
Quick Start
Creating Components
Using Components
Communicating with Events
Communicating Across the DOM with Lightning Message Service
Creating Apps
Styling Apps
Developing Secure Code
Using JavaScript
Working with Salesforce Data
Testing Components with Lightning Testing Service
How Lightning Testing Service Works
Install Lightning Testing Service
Get Started with Lightning Testing Service
Explore the Example Test Suites
Write Your Own Tests
Use Other Frameworks
Debugging
Performance
Reference
PDF

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Get Started with Lightning Testing Service

Let’s see LTS in action.

These steps assume you’ve already followed the Install Lightning Testing Service instructions.

  1. From your project directory, create another scratch org using the configuration file from the cloned LightningTestingService repo. 
    1sfdx force:org:create -s -f config/project-scratch-def.json -a scratch1
  2. Push metadata to the scratch org.
    1sfdx force:source:push
  3. Run tests.
    1sfdx force:org:open -p /c/jasmineTests.app

You see a screen that looks something like the following.Jasmine example test results

How to Push Data to a Developer Edition Org

Salesforce DX is designed to work with a Dev Hub and scratch orgs. If you have a normal DE org you’d like to work with, the commands are slightly different. 

1sfdx auth:web:login -s   # connect to your DE org
2sfdx force:mdapi:convert       # convert metadata for Salesforce DX projects
3sfdx force:mdapi:deploy        # deploy local source to the DE org