Ember.js Test: Integration testing one inside another

I have a situation where I have written test cases for two components, and both components test cases passed successfully.

Now, I want to run actually as then run on production.

lets say: comp2 renders inside comp1 on a button click

1. How can I render one test component inside another
2. Can the child-test-component send information to @parent-test-component on successful completion of its test case