title: Which Environments Should Integration Test be Run In?
body: <p>Given a development pipeline with playground, staging, and production environments, which environment is most appropriate for integration tests? What is the best practice around this?</p>
  <p>My thinking is that it should be in the playground environment, to get the earliest results (ie shift left). However, I have also seen some examples of re-running integration tests for each environment.</p>
  <p>Is there value in running integration tests multiple times, or does it make more sense to just run it once in an appropriate environment?</p>