Autofac configuration validation

Question

Does Autofac have an equivalent to StructureMap's AssertConfigurationIsValid method? Or does configuration validation occur when creating the container?

I believe the AssertConfigurationIsValid method checks that the container can create all the configured services. Obviously it can't pick up more subtle configuration mistakes - related to scope, for instance - but it would be nice to know that we are doing as much as we can to prevent issues that could crop up at runtime.

Answer 1

I don't think Autofac have validation, and an exception is thrown at runtime if a service cannot be resolved. It would probably be useful but I always tend to write unit tests that validates that my container, or rather my modules, contain those services I expect it to have. Unit testing more than makes up for the lack of container validation.

These tests usually follow the pattern of

1. Create a container with the module under test
2. For each required service, test container.IsRegistered
3. Whenever possible, test container.Resolve