[natecook1000]

The implementation of this parsing point was re-calling the validate() method after parsing had completed, but validate() was already called within the parsing. This eliminates the extra call and adds a test to verify that validate() is only being called once regardless of entry point.

Checklist

• I've added at least one test that validates that my change is working, if appropriate
• I've followed the code style of the rest of the project
• I've read the Contribution Guidelines
• I've updated the documentation if necessary