a1 = [2, 2, 3]
a2 = [4, 9, 9]
test.assert_equals(comp(a1, a2), False)
a1 = [2, 2, 3]
a2 = [4, 4, 9]
test.assert_equals(comp(a1, a2), True)

Each element counts, repeating or not. If you remove repetitions, then sure - they're "same".. But it doesn't say anywhere in description to do so, so your approach will be incorrect.

They haven't the same input values and both tests expect different output. Nothing wrong with that.

That's just not true. Look at the inputs again, carefully. There's at least 1 different number.