How can I validate exits and aborts in RSpec?

Question

I am trying to spec behaviors for command line arguments my script receives to ensure that all validation passes. Some of my command line arguments will result in abo

Answer 1

Its not pretty, but I've been using this:

begin
  do_something
rescue SystemExit => e
  expect(e.status).to eq 1 # exited with failure status
  # or
  expect(e.status).to eq 0 # exited with success status
else
  expect(true).eq false # this should never happen
end