Individual tests don't work in XCode when structured as in the example.

[cameronmcefee]

This isn't technically related to SharingGRDB but rather the project, so I've made it a discussion. In XCode 26 beta 4, if I run the entire test plan for this repo, the tests all run and pass. However, if I run just a single test, it reports that 0 tests were run. I suspect/assume this has something to do with the way the tests are extensions on a base test suite and how XCode finds the tests. This is unfortunate, because I really like the pattern for sharing the base configuration that is established here.

Has anyone else run into this that can verify my suspicion, or that perhaps has a solution? I've copied this testing pattern in one of my projects and while I can obviously get by running all of my tests, there are scenarios where I'd like to be able to run fewer than that.

[mbrandonw]

Hi @cameronmcefee, are you sure no tests are being run? What happens if you put an #expect(false) in a test and then run that?

When I run a single test I see the following logs:

Test Suite 'Selected tests' started at 2025-08-21 16:15:47.910.
Test Suite 'SharingGRDBTests.xctest' started at 2025-08-21 16:15:47.910.
Test Suite 'SharingGRDBTests.xctest' passed at 2025-08-21 16:15:47.910.
	 Executed 0 tests, with 0 failures (0 unexpected) in 0.000 (0.000) seconds
Test Suite 'Selected tests' passed at 2025-08-21 16:15:47.910.
	 Executed 0 tests, with 0 failures (0 unexpected) in 0.000 (0.001) seconds
􀟈 Test run started.
􀄵 Testing Library Version: 1084
􀄵 Target Platform: arm64e-apple-macos14.0
􀟈 Suite IntegrationTests started.
􀟈 Test fetchAll_SQLString() started.
􁁛 Test fetchAll_SQLString() passed after 0.022 seconds.
􁁛 Suite IntegrationTests passed after 0.023 seconds.
􁁛 Test run with 1 test in 1 suite passed after 0.023 seconds.
Program ended with exit code: 0

It's a little misleading because it seems that 0 tests were run ("Executed 0 tests, with 0 failures"), but that just seems to be the xctest bundle. Immediately after that the Swift Testing suite starts, and that does report what was run: "Test run with 1 test in 1 suite passed".

I think you are just seeing logs for the two flavors of tests (XCTest vs Testing) in a single output, and so it can be confusing.

[cameronmcefee]

Hmm, ok, I see what you're talking about, so I'll mark this as resolved since my problem doesn't apply here.

Unfortunately in my own project, which does tests in a similar fashion, the individual tests don't seem to run still, proven by print statements in the tests that only appear when running the whole test plan. I'd hoped I'd find a universal problem, but it looks like it's still on me to troubleshoot 😬.

[cameronmcefee]

Updating in case anyone ends up here for the same issue. Someone suggested I try running the test from the command line and it works the way it should there, so this seems to be an XCode issue. I set up a minimal repro here and submitted a feedback: FB19834678