Ben Foster • 11/22/2013

Testing handlers/filters that access IDependencyScope in Web API

This technical article explains how to test ASP.NET Web API filters and message handlers that access the IDependencyScope for dependency resolution. It discusses the challenges of coupling to the dependency resolver, proposes a solution using constructor injection with a Func delegate for better testability, and provides a concrete example using a RavenDB unit-of-work filter with accompanying unit tests.

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#unit testing #dependency injection #Unit Of Work