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Comment by orphea | Hacker News Reader

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orphea

> You can't just "go to definition" of the class being injected into yours, even if there is only one.

Yes, I can? At least Rider can jump to the only implementation, no questions asked.

> And no, it will not just point to your single implementation, it'll find the test implementation too.

It will, but is it a problem to click the correct class from a list of two options?

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If you only have one implementation, why do you even have an interface?

So I can mock it out for unit tests.

Then you have two implementations…

You don't necessarily need to implement interfaces [in your code] to stub them in unit tests:

    var calculator = Substitute.For<ICalculator>();

If you’re doing that, you may as just mock your concrete class. Mockito supports this in Java. Perhaps this is needed in C#?

Java is virtual by default. C# is not. You could mark every single method virtual and mock it like Java. But it’s easier to define a contract and mock that.

Not one that shows up when I hit "go to implementation".

LOL ok so you’ve never used C#

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