09.01.2026
Mocks aren't Engines: Why TestSeed focuses on Data Identity over Logic
A common challenge when designing test data is complex business logic. For example: "The sum of all line items in an order must exactly match the total invoice amount." When developers encounter this, they often look for a tool that can "calculate" these values during generation. But here is the truth: Your mock data generator shouldn't be a second version of your backend. If you try to replicate complex mathematical dependencies inside your data generation tool, you are essentially building a "Shadow Business Engine" that you now have to maintain.