def test_tzinfo_now(self):
meth = self.theclass.now
# Ensure it doesn't require tzinfo (i.e., that this doesn't blow up).
base = meth()
# Try with and without naming the keyword.
off42 = FixedOffset(42, "42")
another = meth(off42)
again = meth(tz=off42)
self.assertIs(another.tzinfo, again.tzinfo)
self.assertEqual(another.utcoffset(), timedelta(minutes=42))
# Bad argument with and w/o naming the keyword.
self.assertRaises(TypeError, meth, 16)
self.assertRaises(TypeError, meth, tzinfo=16)
# Bad keyword name.
self.assertRaises(TypeError, meth, tinfo=off42)
# Too many args.
self.assertRaises(TypeError, meth, off42, off42)
# We don't know which time zone we're in, and don't have a tzinfo
# class to represent it, so seeing whether a tz argument actually
# does a conversion is tricky.
weirdtz = FixedOffset(timedelta(hours=15, minutes=58), "weirdtz", 0)
utc = FixedOffset(0, "utc", 0)
for dummy in range(3):
now = datetime.now(weirdtz)
self.assertIs(now.tzinfo, weirdtz)
utcnow = datetime.utcnow().replace(tzinfo=utc)
now2 = utcnow.astimezone(weirdtz)
if abs(now - now2) < timedelta(seconds=30):
break
# Else the code is broken, or more than 30 seconds passed between
# calls; assuming the latter, just try again.
else:
# Three strikes and we're out.
self.fail("utcnow(), now(tz), or astimezone() may be broken")
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