Before:
  enew!
  Startify

Do (Open new buffer in insert "foo"):
  ifoo
Expect (Buffer contains only "foo"):
  foo

Do (Open new buffer in normal mode and insert "bar"):
  eibar
Expect (Buffer contains only "bar"):
  bar

Given (Buffer that contains only "quux"):
  quux
Do (Quit Startify buffer via 'q'):
  q
Expect (Buffer before :Startify was called):
  quux