This fix the issue #2

[ghost]

I've created the respective tests, and make them pass, for fix the issue #2.

[houndci-bot]

Use 2 (not 1) spaces for indentation.
Tab detected.

[coveralls]

Coverage decreased (-9.92%) to 89.02% when pulling 0690997 on sgmart:master into 97e70fb on rendon:master.

[houndci-bot]

Prefer double-quoted strings unless you need single quotes to avoid extra backslashes for escaping.

[coveralls]

Coverage decreased (-9.92%) to 89.02% when pulling fff8e94 on sgmart:master into 97e70fb on rendon:master.

[rendon]

Thanks for your effort, just one thing, add more tests to keep test coverage high (green). Go to coveralls and check what code paths are lacking tests. Or use simplecov locally, in spec/spec_helper.rb change coveralls by simplecov:

# require 'simplecov'
# SimpleCov.start
require 'coveralls'
Coveralls.wear!
        |
        |
        v
require 'simplecov'
SimpleCov.start
#require 'coveralls'
#Coveralls.wear!

Don't forget to revert this change before sending the pull request.