def test_number_from_string_05():
# random
for _ in range(100):
stringy = "".join(random.choices([str(i) for i in list(range(0, 10))] + list(string.ascii_lowercase),
k=random.randint(0, 50)))
assert exam.number_from_string(stringy) == int("".join([i for i in "0" + stringy if i.isnumeric()]))
def test_number_from_string_04():
# empty string
assert exam.number_from_string("") == 0
def test_number_from_string_02():
# few numbers
assert exam.number_from_string("a6b7c8d9") == 6789
assert exam.number_from_string("1abc12def34") == 11234
def test_number_from_string_03():
# all numbers
assert exam.number_from_string("12345") == 12345
assert exam.number_from_string("0123") == 123
def test_number_from_string_01():
# no number
assert exam.number_from_string("abcd") == 0
assert exam.number_from_string("a") == 0