- e2e tests are tests that cover critical functionality by booting ghost
- integration tests are more like unit tests, but need to initialise and use a db
- so settings shouldn't start Ghost, url service is critical and should be in integration, and preview is critical and should be in e2e
- some tests are necessarily driven from the db
- these are like unit tests, except they only make sense if using the db - else you have to stub too much to make them worthwhile
- for these rare but important cases, we have the clear concept of integration tests
