Documentation / Explanation of _XCTIsTesting

[dafurman]

I'm curious, what's the benefit of using _XCTIsTesting over something like let isTesting = NSClassFromString("XCTestCase") != nil.

Just for the sake of understanding, I'm wondering how the contents of _XCTIsTesting was created, and what situations it covers that a simpler check like NSClassFromString("XCTestCase") != nil wouldn't account for.

[mbrandonw]

Hi @dafurman, NSClassFromString is not available on all the platforms we support. If you are just developing on Apple platforms then the NSClassFromString is probably ok, as far as I know.