Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

1Test.startTest();
2// Create test events
3// ...
4// Publish test events with EventBus.publish()
5// ...
6// Deliver test events
7Test.getEventBus().deliver();
8// Perform validation 
9// ...
10Test.stopTest();

1// Create test events
2// ...
3// Publish test events with EventBus.publish()
4// ...
5// Fail publishing of test events
6Test.getEventBus().fail();
7// Perform validation 
8// ...