Tests are failing when using materialize on the same thread in more than 15 tests #2695
Description
Link to project where tests are failing:
github link
Tests started to fail with Xcode 26.3
Maybe Swift 6.2.3 update changes sth?
Observing Single on same thread ConcurrentDispatchQueueScheduler(qos: .default) for all tests.
When using .materialize() in more than 15 tests, then tests are failing. Can run FailureWhenMoreThan15TestsBlockingSameThread tests to see.
Getting Sequence timeout.
When there is 15 or less tests, then no problem. See SucceedWhen15TestsBlockingSameThread test.
And when using async await instead with stream values, it will pass. See SucceedWhenUsingAsyncAwaitForBlockingSameThread test.
Environment:
Xcode Version 26.3 (17C529)
MacOS 15.7.4 (24G517)