Product Decisions This Supports

Enables testing of code dependent on third-party SDKs with final classes without modifying vendor code
Reduces technical debt by eliminating unnecessary production code refactoring solely for testability
Supports a "buy vs build" decision where adopting this lightweight package is faster and safer than custom mocking solutions
Critical for projects using sealed dependencies (e.g., legacy systems or closed-source APIs) where interfaces can't be implemented
Aligns with test-driven development (TDD) by allowing true unit test isolation for otherwise untestable dependencies

When to Consider This Package

✅ Adopt when:
- Testing code that relies on third-party libraries with final classes (e.g., AWS SDK, Stripe, or other vendor SDKs)
- Using PHPUnit for testing and needing minimal setup to mock sealed dependencies
- Refactoring production code is impossible (e.g., due to vendor lock-in or compliance constraints)
❌ Avoid when:
- Your codebase has no final class dependencies or uses interfaces for testability
- The project uses non-PHPUnit testing frameworks (e.g., Pest without PHPUnit compatibility)
- You can redesign dependencies to remove final modifiers (e.g., for internal code)