testing.swift

struct Bob {
    let lastName: String
    
    static var creth: Bob {
        return Bob(lastName: "Creth")
    }
    
    static func bobNamedFlumper() -> Bob {
        return Bob(lastName: "Flumper")
    }
}

func someFuncThatTakesABob(bob: Bob) -> String {
    return "Bob \(bob.lastName)"
}

print(someFuncThatTakesABob(.bobNamedFlumper()))
print(someFuncThatTakesABob(.creth))