bootstrapping in XCTestCase about swift-log HOT 9 OPEN

Sounds good to me, would you have a moment PR such section into the README.md perhaps?

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But what if I want to test different LogHandlers with the LoggingSystem? Seems to be impossible for now 😢

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So I found a workaround in @testable import Logging, so LoggingSystem.internalBootstrap works and it seems to be a nice way to replace LoggingSystem's factory in tests 🌚

Btw you can find beta of my LoggingKit here 🙂

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@maximkrouk you can construct a logger with a backend explicitly:

let logger = Logger(label: "foo") { label in
    MyAwesomeBackend(label)
}

see docs.

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Does this solution apply when using SwiftLog in an iOS app and its test cases? I'm finding the host app bootstraps the logging system fine, but then when loading tests I get the second bootstrapping error. I have attempted to use the lazy global variable approach above, but and finding its not protecting the bootstrapping from attempting again.

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@leisurehound could you send us the code you use with the lazy global? That should work.

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sorry, I had an unrelated config issue that was causing this, once I fixed that the tests now run without double bootstrapping the logger. Sorry for the noise.

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Thanks for looping back, closing the ticket then 👍

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Actually, the original ticket stands as to documenting the pattern, so opening.

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