Unit testing parse rules Types of parse rules include parse delimited rule, parse XML rule, parse structured rules. Unit testing a Parse Delimited rule You can test a Parse Delimited rule directly, separate from the activity or other context in your application in which it will eventually operate. Unit testing a Parse XML rule You can test a Parse XML rule directly, separate from the activity or other context in your application in which it will ultimately operate. Unit testing a Parse Structured rule You can test a Parse Structured rule directly, separate from the activity or other context in your application in which it will ultimately operate.