Hello Boris,
Does it still require generating the Xcode project and then running xcodebuild? Hopefully we can move beyond that as it makes it a pain to generate and get code coverage of the right items as you lose control of the generated Xcode project unless you commit it to source control and make updating it manually a developer step.
Is that to say that there will not be a swift test iOS destination for the foreseeable future? Is it perceived as not needed? Why?