import datetime as dt
from pycalver import version


def test_current_calver():
    v = version.current_calver()
    assert len(v) == 7
    assert v.startswith("v")
    assert v[1:].isdigit()


# def test_calver():
#     import random

#     first_version_str = "v201808.0001-dev"
#     padding = len(first_version_str) + 3
#     version_str = first_version_str

#     def _current_calver() -> str:
#         _current_calver.delta += dt.timedelta(days=int(random.random() * 5))

#         return (dt.datetime.utcnow() + _current_calver.delta).strftime("v%Y%m")

#     _current_calver.delta = dt.timedelta(days=1)

#     global current_calver
#     current_calver = _current_calver

#     for i in range(1050):
#         version_str = incr_version(version_str, tag=random.choice([
#             None, "alpha", "beta", "rc"
#         ]))
#         print(f"{version_str:<{padding}}", end=" ")
#         if (i + 1) % 8 == 0:
#             print()

#     print()