BasicGates kata task 1.6 PhaseChange fails

[cspwcspw]

The workbook explains that desired output and actual output may look very different under inspection tools because of the global phase component, but it suggests that the test harness will do the correct thing and ignore the (physically) unobservable. But then the provided solution for T1.6 does not succeed. Is there code that can make this test pass? Or is there something wrong with the test?