Tests to cover basic things like correctly setting all types

[jbisits]

An error crept in that could have been avoided if these were written first.

[jbisits]

Also need some sort of validation setup for the triple periodic case to make sure does not break with any changes.

[jbisits]

Also need some sort of validation setup for the triple periodic case to make sure does not break with any changes.

This is essentially what I am using some of the examples for at the moment so at least have some written.