This document discusses an approach to data-driven testing of objects using Object::Exercise. Key points include: - Object::Exercise standardizes repetitive test code into a reusable framework. - Tests are defined declaratively as data, replacing hardwired test code. This avoids issues like testing the tests. - Tests can validate return values, check for exceptions, and perform more complex checks using regular expressions and code references. - The approach also allows overriding parts of an object under test by replacing methods that initialize test data. This enables flexible testing of different configurations.