def test_easy(self):
# Despite the name of this test, the endcases are excruciating.
self.convert_between_tz_and_utc(Eastern, utc_real)
self.convert_between_tz_and_utc(Pacific, utc_real)
self.convert_between_tz_and_utc(Eastern, utc_fake)
self.convert_between_tz_and_utc(Pacific, utc_fake)
# The next is really dancing near the edge. It works because
# Pacific and Eastern are far enough apart that their "problem
# hours" don't overlap.
self.convert_between_tz_and_utc(Eastern, Pacific)
self.convert_between_tz_and_utc(Pacific, Eastern)
# OTOH, these fail! Don't enable them. The difficulty is that
# the edge case tests assume that every hour is representable in
# the "utc" class. This is always true for a fixed-offset tzinfo
# class (lke utc_real and utc_fake), but not for Eastern or Central.
# For these adjacent DST-aware time zones, the range of time offsets
# tested ends up creating hours in the one that aren't representable
# in the other. For the same reason, we would see failures in the
# Eastern vs Pacific tests too if we added 3*HOUR to the list of
# offset deltas in convert_between_tz_and_utc().
#
# self.convert_between_tz_and_utc(Eastern, Central) # can't work
# self.convert_between_tz_and_utc(Central, Eastern) # can't work
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