Unlike levelling up in a game, where once you accumulate the xp or whatever, you’ve got that level and magically gain enhanced abilities, in real life levels are those abilities. To be at level 1 as described in the OP has to mean not just passing all those tests once, but to be able to call on all of those abilities at any time—the ability being proven by actually calling on them from time to time.
Unlike levelling up in a game, where once you accumulate the xp or whatever, you’ve got that level and magically gain enhanced abilities, in real life levels are those abilities. To be at level 1 as described in the OP has to mean not just passing all those tests once, but to be able to call on all of those abilities at any time—the ability being proven by actually calling on them from time to time.