The Kata Description is incorrect.
It explicitly states: "Sheldon, Leonard, Penny, Rajesh and Howard are in the queue for a "Double Cola" drink vending machine; there are no other people in the queue."
Either the wording should not suggest that this is a hard limit (and especially not make an emphasis on that), or the tests should not attempt to call this function with more than 5 people.
Suggested wording "A number of people, for example Sheldon, Leonard, Penny..."
The Kata Description is incorrect.
It explicitly states: "Sheldon, Leonard, Penny, Rajesh and Howard are in the queue for a "Double Cola" drink vending machine; there are no other people in the queue."
Either the wording should not suggest that this is a hard limit (and especially not make an emphasis on that), or the tests should not attempt to call this function with more than 5 people.
Suggested wording "A number of people, for example Sheldon, Leonard, Penny..."