mocking-inprocess-dotnetlisted

# Mocking — In-process x .NET adapter (override) Concrete recipe that mocks a downstream dependency the SUT calls, using an in-process test double registered in the `WebApplicationFactory` DI, instead of a Microcks container. Selected when the operator overrides the Microcks default. Loaded ONLY when `mocking-strategy-roster` resolved `(inprocess, .NET)`. The roster also passes the chosen library: `fakeiteasy | nsubstitute | moq`. When no specific library is named, the **Library table below is ordered by priority** (top = highest): pick the first row whose package is already present in the test project; if none is present, take the top row. **Boundary:** mock wiring + integration-test scaffold only. No business TDD, no Object Calisthenics enforcement, no provider contract verification. The `software-engineer` lead integrates this into its own TDD loop. ## Library packages (table order = priority, top = highest) | Priority | Library | NuGet | Double creation | |---|---|---|---| | 1 | fakeiteasy | `FakeItEasy` | `A.Fake<I{Downstream}Client>()` | | 2 | nsubstitute | `NSubstitute` | `Substitute.For<I{Downstream}Client>()` | | 3 | moq | `Moq` | `new Mock<I{Downstream}Client>()` (use `.Object` for the instance) | ## Recipe — register an in-process double in the test host ```csharp public class {Sut}ApiFactory : WebApplicationFactory<Program> { public I{Downstream}Client DownstreamDouble { get; } = // Create via the resolved library's "Double creation" column abov