happymapper-differ

https://github.com/pharos-ei/happymapper-differ

In the unlikely event you are using HappyMapper, and the more unlikely event you need to find changes between two HappyMapper objects, HappyMapper::Differ might help you. HappyMapper::Differ takes two HappyMapper objects and compares all the attributes and elements. It modfies each element to include if it has changed and what it changes are.