def test_today(self):
import time
# We claim that today() is like fromtimestamp(time.time()), so
# prove it.
for dummy in range(3):
today = cpy_date.today()
ts = time.time()
todayagain = cpy_date.fromtimestamp(ts)
if today == todayagain:
break
# There are several legit reasons that could fail:
# 1. It recently became midnight, between the today() and the
# time() calls.
# 2. The platform time() has such fine resolution that we'll
# never get the same value twice.
# 3. The platform time() has poor resolution, and we just
# happened to call today() right before a resolution quantum
# boundary.
# 4. The system clock got fiddled between calls.
# In any case, wait a little while and try again.
time.sleep(0.1)
# It worked or it didn't. If it didn't, assume it's reason #2, and
# let the test pass if they're within half a second of each other.
self.assertTrue(
today == todayagain or abs(todayagain - today) < timedelta(seconds=0.5)
)
def test_fromtimestamp(self):
import time
# Try an arbitrary fixed value.
year, month, day = 1999, 9, 19
ts = time.mktime((year, month, day, 0, 0, 0, 0, 0, -1))
d = cpy_date.fromtimestamp(ts)
self.assertEqual(d.year, year)
self.assertEqual(d.month, month)
self.assertEqual(d.day, day)