FakeItEasy VS Moq

In terms of mocking there are several frameworks you can use, but I've mainly relied on Moq and NSubstitute. Within this demo, I'm going to use NSubstitute as I've found it a little easier to use.

MOQ https://github.com/moq/moq4

Moq

Both projects use similar testing infrastructure. I write unit tests in C# using XUnit.net. I frequently use mock objects in testing, and MOQ is my tool of choice. I utilize continuous testing and coverage analysis through Rider. I do not have specific objectives for code coverage. When writing complicated algorithms, I frequently shoot for 100% coverage of the algorithm. I test simple properties inconsistently, and frequently do not test guard clauses.

🔗 Moq documentation | GitHub

But the reality is that I don't really write my tests with it. Toss on the MSTest attributes as needed of course. But all the testing code itself is FluentAssertions with a bit of Moq. (Though I find rarely need to use Moq/mocking anymore -- scandalous, I know.)

This looks like the kind of thing Moq could handle with LINQ to Mocks.

Full code can be found here. More on Moq can be found here.

Moq

> edit: one more qualm, the Mockito equivalent for C#, NSubstitute, cannot mock a concrete class, only an interface.

I've never heard of NSubstitute (that doesn't mean it's bad), but most places I've worked at typically use Moq (https://github.com/moq/moq4) which does support interfaces and classes.