Question 1

How do I mock DateTime.Now with Pose in unit tests?

Accepted Answer

Use Shim.Replace(() => DateTime.Now).With(() => new DateTime(2004, 4, 4)) and wrap your test code in PoseContext.Isolate to apply the shim, as shown in the static property getter example.

Question 2

Pose vs Microsoft Fakes: which is better for .NET testing?

Accepted Answer

Pose is fully managed and cross-platform, ideal for open-source or multi-platform projects, while Microsoft Fakes integrates tightly with Visual Studio Enterprise but relies on unmanaged APIs and file system changes. Pose offers more flexibility in non-Windows environments.

Question 3

Can Pose be used with async methods?

Accepted Answer

Yes, as long as the replacement delegate matches the async method signature, but the README doesn't provide specific examples, so you may need to test compatibility with async/await patterns in your code.

Question 4

Why aren't my breakpoints hitting when using Pose?

Accepted Answer

Breakpoints in code isolated with PoseContext.Isolate do not hit due to runtime method replacement; only breakpoints within shim replacement delegates are functional, as noted in the Caveats section.

Question 5

How to shim instance methods on specific objects with Pose?

Accepted Answer

Create a shim targeting the specific instance, e.g., Shim.Replace(() => myInstance.Method()).With(delegate), and include it in PoseContext.Isolate, as demonstrated in the 'Shim method of specific instance' example.

Question 6

Is Pose suitable for production code or just testing?

Accepted Answer

Primarily designed for testing due to performance limitations and debugging issues; the roadmap mentions improvements for production use, but currently it's best used in test scenarios to avoid overhead and complexity.

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