ERROR  Unable to load file bad_file_name, exiting...
F   ERROR  Unable to load file fixtures/invalid.yaml, exiting...
F

Failures:

1) MyModule::MyCli with incorrect filename should fail cleanly
  Failure/Error:
    expect do
      subject.format('bad_file_name')
    end.to raise_error(SystemExit).and output('   ERROR  Unable to load file bad_file_name, exiting...').to_stdout

    expected block to output "   ERROR  Unable to load file bad_file_name, exiting..." to stdout, but output nothing
  # ./spec/format_spec.rb:14:in `block (3 levels) in <module:MyModule>'

2) MyModule::MyCli with incorrect filename should fail cleanly
  Failure/Error:
    expect do
      subject.format('fixtures/invalid.yaml')
      # end.to raise_error(SystemExit).and output('   ERROR  Unable to load file fixtures/invalid.yaml, exiting...').to_stdout
    end.to output('   ERROR  Unable to load file fixtures/invalid.yaml, exiting...').to_stdout.and raise_error(SystemExit)

    expected block to output "   ERROR  Unable to load file fixtures/invalid.yaml, exiting..." to stdout, but output nothing
  # ./spec/format_spec.rb:22:in `block (3 levels) in <module:MyModule>'