Test Your Changes

Testing is key to the success of your application, particularly if you deploy your application to customers. If you validate that your application works as expected with no unexpected behavior, your customers are going to trust you more.

• Application Unit Tests
  Run Apex and automated flow unit tests on methods, classes, sets of classes, or your whole org.
• Execute Application Tests
  Select the Apex and flow tests that you want to run. Then examine the results, analyze error messages, and inspect your Apex source code.
• Checking Code Coverage
  The Developer Console retrieves and displays code coverage information from your organization. Code coverage results come from any tests you’ve run from an API or from a user interface (for example, the Developer Console, the Salesforce Extensions for Visual Studio Code, or the Application Test Execution page).
• Create a Test Run
  A test run is a collection of classes that contain test methods. Set up a test run in the Developer Console to execute the test methods in one or more test classes.
• Manage Sets of Apex Test Classes with Test Suites
  A test suite is a collection of Apex test classes that you run together. For example, create a suite of tests that you run every time you prepare for a deployment or Salesforce releases a new version. Set up a test suite in the Developer Console to define a set of test classes that you execute together regularly.