def test_unixtime_roundtrip(tzone):
_environ = os.environ.copy()
try:
os.environ['TZ'] = tzone
y, m, d = 2000, 1, 1
epoch = cdfepoch.compute_tt2000([[y, m, d]])
unixtime = cdfepoch.unixtime(epoch)
assert unixtime == [946684800.0]
finally:
os.environ.clear()
os.environ.update(_environ)
def test_unixtime():
x = cdfepoch.unixtime([500000000100, 123456789101112131])
assert x[0] == 946728435.816
assert x[1] == 1070184724.917112
def _convert_cdf_time_types(data,
atts,
properties,
to_datetime=False,
to_unixtime=False):
'''
# Converts CDF time types into either datetime objects, unixtime, or nothing
# If nothing, ALL CDF_EPOCH16 types are converted to CDF_EPOCH, because xarray can't handle int64s
'''
if not hasattr(data, '__len__'):
data = [data]
if to_datetime and to_unixtime:
print(
"Cannot convert to both unixtime and datetime. Continuing with conversion to unixtime."
)
to_datetime = False
# Convert all data in the "data" variable to unixtime or datetime if needed
data_type = properties['Data_Type_Description']
if len(data) == 0 or data_type not in ('CDF_EPOCH', 'CDF_EPOCH16',
'CDF_TIME_TT2000'):
new_data = data
else:
if to_datetime:
new_data = cdfepoch.to_datetime(data)
if 'UNITS' in atts:
atts['UNITS']['Data'] = 'Datetime (UTC)'
elif to_unixtime:
new_data = cdfepoch.unixtime(data)
if 'UNITS' in atts:
atts['UNITS']['Data'] = 'seconds'
else:
if data_type == 'CDF_EPOCH16':
new_data = cdfepoch.compute(cdfepoch.breakdown(data)[0:7])
else:
new_data = data
# Convert all the attributes in the "atts" dictionary to unixtime or datetime if needed
new_atts = {}
for att in atts:
data_type = atts[att]['Data_Type']
data = atts[att]['Data']
if not hasattr(data, '__len__'):
data = [data]
if len(data) == 0 or data_type not in ('CDF_EPOCH', 'CDF_EPOCH16',
'CDF_TIME_TT2000'):
new_atts[att] = data
else:
if to_datetime:
new_atts[att] = cdfepoch.to_datetime(data)
elif to_unixtime:
new_atts[att] = cdfepoch.unixtime(data)
else:
if data_type == 'CDF_EPOCH16':
new_atts[att] = cdfepoch.compute(
cdfepoch.breakdown(data)[0:7])
else:
new_atts[att] = data
return new_data, new_atts