def test_next_id_overflow():
try:
prev_id = "9999"
next_id = lex_id.next_id(prev_id)
assert False, (prev_id, "->", next_id)
except OverflowError:
pass
def test_next_id_random():
for i in range(1000):
prev_id = str(random.randint(1, 100000))
try:
next_id = lex_id.next_id(prev_id)
assert prev_id < next_id
except OverflowError:
assert len(prev_id) == prev_id.count("9")
def test_next_id_basic():
assert lex_id.next_id("01") == "02"
assert lex_id.next_id("09") == "110"