When a change set is deployed to production all Apex tests will automatically be run?

When a change set is deployed to production all Apex tests will automatically be run?

When a change set is deployed to a production org, all local Apex tests in that org are run by default if you’re deploying any Apex classes or triggers. If the target org is a sandbox, however, tests aren’t automatically run.

What test level is going to be enforced in the deployment to production?

“When deploying to production, all tests, except those that originate from managed packages, are executed if your deployment package contains Apex classes or triggers. If your package doesn’t contain Apex components, no tests are run by default.”

Do you have to run apex tests while deploying?

No Test Run (no Apex tests are run unless it is a production deployment). Run Specified Tests: Only included Apex test classes are run (aka fast deploy ). These test classes are: Classes that were committed in user stories that are part of the deployment.

Which is the default test level for apex?

RunLocalTests — All tests in your org are run, except the ones that originate from installed managed and unlocked packages. This test level is the default for production deployments that include Apex classes or triggers. RunAllTestsInOrg — All tests are run.

Where can Apex code be deployed in production?

Apex code can only be written in a sandbox environment or a Developer org, not in production. Apex code can be deployed to a production org from a sandbox. Also, app developers can distribute Apex code to customers from their Developer orgs by uploading packages to the Lightning Platform​ AppExchange.

Can a sandbox environment be used for apex testing?

Testing is the key to successful long-term development and is a critical component of the development process. The Apex testing framework makes it easy to test your Apex code. Apex code can only be written in a sandbox environment or a Developer org, not in production.