def test_one(self):
coins = [1]
expected = 2
assert min_impossible_coins(coins) == expected
def test_five(self):
coins = [1, 1, 1, 1, 5, 10, 15, 20, 100]
expected = 55
assert min_impossible_coins(coins) == expected
def test_three(self):
coins = [1, 1, 2, 3, 5, 7, 22]
expected = 20
assert min_impossible_coins(coins) == expected
def test_four(self):
coins = [1, 1, 4, 5, 6, 8, 9]
expected = 3
assert min_impossible_coins(coins) == expected
def test_two(self):
coins = [1, 1, 1, 1, 1]
expected = 6
assert min_impossible_coins(coins) == expected