title: E2E tests for random scenarios
body: <p>Interested in approach to test random scenarios in case of E2E testing. </p>
  
  <p>Q1: So we need to check all the system parts are connected correctly and what does it mean in case of random answer from the server etc (happy parts instead of single happy part)?</p>
  
  <p>Q2: How to test errors in e2e scenarios? As example of this case different server errors etc. Does it have to be tested at all?</p>