How to test component events when event and handler are in different components?

[678varunkumar]

In the reference jasmine test resource, component event(egComponentEvent) registration and handler is done in same component(egEventHandling). Thus, we are able to test the result after event is fired.

https://github.com/forcedotcom/LightningTestingService/blob/master/lightning-component-tests/test/default/staticresources/jasmineExampleTests.resource

/**

• Component under test: 'c:egEventHandling'
• This spec shows how to validate a component's handling of component- and
• application-level events. */ describe('c:egEventHandling', function() { it('handles component- and application-level events', function(done) { $T.createComponent("c:egEventHandling", null) .then(function(component){ var cmpEvent = component.getEvent("sampleEvent"); cmpEvent.setParams({"data":"component event fired"}); cmpEvent.fire() expect(component.get("v.message")).toBe("component event fired"); $T.fireApplicationEvent("c:egApplicationEvent", {"data":"application event fired"}); expect(component.get("v.message")).toBe("application event fired"); done(); }).catch(function(e) { done.fail(e); }); }); });

Facing issue to test the results after component event is fired, when event registration and its handler is done in different components.

We are firing a component level event in component 1 and the handler is being invoked in Component 2 ,

We are struggling in testing component event where as component is getting fired but we are not able to see the handler invoked in the Component 2

Kindly help us in getting the correct solution for the below code $T.createComponent("c:tagr_Tag",attributes,true) .then(function(component) { var evt = component.getEvent('componentEvent'); evt.setParam('entity', entity);
evt.fire(); expect(evt.fire()).tobe.(true); }

Here event is getting fired from tagr_Tag but handler is not getting invoked from different component. Please help us in arriving to the solution using any approach like spyon or something else. Thanks in Advance