def test_fix_dst(self):
d = {'filename': 'irrelevant',
'datafile_fields': '0',
'datafile_format': 'irrelevant'}
d.update(self.datafiledict)
df = Datafile_simple('http://irrelevant/', {}, d)
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 2, 59)),
datetime(2012, 10, 28, 1, 59))
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 3, 00)),
datetime(2012, 10, 28, 3, 00))
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 4, 00)),
datetime(2012, 10, 28, 4, 00))
# Now we pretend that the switch from dst hasn't occurred yet.
# This is the only case when loggertodb should assume that
# ambiguous times refer to before the switch.
athens = pytz.timezone('Europe/Athens')
now = athens.localize(datetime(2012, 10, 28, 3, 59), is_dst=True)
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 2, 59), now=now),
datetime(2012, 10, 28, 1, 59))
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 3, 00), now=now),
datetime(2012, 10, 28, 2, 00))
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 4, 00), now=now),
datetime(2012, 10, 28, 4, 00))
# Once more; the switch from DST has just occurred; now it
# should be assumed that ambiguous times refer to after the
# switch.
now = athens.localize(datetime(2012, 10, 28, 3, 0), is_dst=False)
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 2, 59), now=now),
datetime(2012, 10, 28, 1, 59))
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 3, 00), now=now),
datetime(2012, 10, 28, 3, 00))
self.assertEqual(df._fix_dst(datetime(2012, 10, 28, 4, 00), now=now),
datetime(2012, 10, 28, 4, 00))
def run_test(self):
if not self.base_url:
return
d = {'filename': full_testdata_filename(self.filename),
'datafile_fields': str(self.timeseries_id),
'datafile_format': 'irrelevant'}
d.update(self.datafiledict)
df = Datafile_simple(self.base_url, self.cookies, d)
df.update_database()
enhydris_api.read_tsdata(self.base_url, self.cookies, self.ts)
self.assertEqual(len(self.ts), len(self.ref_ts))
(items, ritems) = [x.items() for x in (self.ts, self.ref_ts)]
for item, ritem in zip(items, ritems):
self.assertEqual(item[0], ritem[0])
self.assertAlmostEqual(item[1], ritem[1], 4)
self.assertEqual(item[1].flags, ritem[1].flags)
