What is the difference between unit, integration and end-to-end tests in Angular?

1. What is the difference between Unit, Integration and End-to-end testing in Angular?
2. Which the principles or paradigms should I know to implement each kind of these tests, how it works?

I found out that unit testing is for component class, integration testing is for component's class and template together.

But I didn't find how does end-to-end testing differ from these ones, how can I implement these in Angular, which are the principles and paradigms for these types of testing.