Swift Package Unit Test "Button" n… | Apple Developer Forums

Swift Package Unit Test "Button" not working

I have a Swift Package, all Swift. I have a unit text file (XCTestCase). If I select "Test" using the button in the Window Title Bar, it works fine.

If I select the diamond shaped button under the "Test Navigator", either the File Name itself, or a test within the file, Xcode acts like it ran the test, but there is no test console output - just this:

Test Suite 'Selected tests' started at 2020-02-20 16:52:03.828
Test Suite 'SAX-CSV-ParserTests.xctest' started at 2020-02-20 16:52:03.829
Test Suite 'SAX-CSV-ParserTests.xctest' passed at 2020-02-20 16:52:03.829.
  Executed 0 tests, with 0 failures (0 unexpected) in 0.000 (0.000) seconds
Test Suite 'Selected tests' passed at 2020-02-20 16:52:03.829.
  Executed 0 tests, with 0 failures (0 unexpected) in 0.000 (0.001) seconds
Program ended with exit code: 0

Is this a known problem with Swift Packages? Tried this with Xcode 11.3.1 and 11.4-beta2 - no difference.