IAdminClient mocking with extension methods

[mlapaglia]

Description

Are there any ways to use Moq with the IAdminClient extension methods? I am trying to test code that has a admin client calling DescribeTopicsAsync but can't mock due to it being an extension method.

How to reproduce

latest confluent nuget package.

var mockedAdminClient = new Mock<IAdminClient>();
mockedAdminClient.Setup(x => x.DescribeTopicsAsync(arguments);
//fails because `DescribeTopicsAsync` is static method.

AdminClient is internal, but DescribeTopicsAsync just turns around and calls the same method on the class

Checklist

Please provide the following information:

• [ ] A complete (i.e. we can run it), minimal program demonstrating the problem. No need to supply a project file.
• [x ] Confluent.Kafka nuget version.
• [ ] Apache Kafka version.
• [ ] Client configuration.
• [ ] Operating system.
• [ ] Provide logs (with "debug" : "..." as necessary in configuration).
• [ ] Provide broker log excerpts.
• [ ] Critical issue.