Is there a way to issue a warning when running tests with XCTest?

Question

I have a project that imports a Git submodule to run a part of an XCTest test suite. If the submodule is not available (not checked out), I want the test suite to succeed, but issue a warning that not all tests were run. Is that possible?

Trichroism

I think this is not possible. – Ipoh

I would like this, too, as I have tests for iOS9-specific code that I want to succeed when testing on iOS9, but not fail when testing on ≤8. – Albion

Answer 1

Searching for similar issue I have found out that we could add messages to test logs as string attachments. If you want to have a warning sign you can add ⚠️ emoji in name. Here is a function example that adds it.

    func addLogMessage(_ message: String, attachmentLifetime: XCTAttachment.Lifetime = .keepAlways) {
        XCTContext.runActivity(named: "Log message") { activity in
            let messageAttachment = XCTAttachment(string: message)
            messageAttachment.lifetime = attachmentLifetime
            activity.add(messageAttachment)
        }
    }

Bondmaid

Answer 2

I found this because I wanted to raise a "Not Implemented" warning on tests I was just laying out...

Eventually found this:

throw XCTSkip("Test not implemented")

Which I think makes a good alternative to a warning in the test results...

Olcott