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tst_grps2.py
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tst_grps2.py
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import sys
import unittest
import os
import tempfile
import numpy as NP
import netCDF4
# test implicit group creation by using unix-like paths
# in createVariable and createGroups (added in 1.1.8).
# also test Dataset.__getitem__, also added in 1.1.8.
FILE_NAME = tempfile.NamedTemporaryFile(suffix='.nc', delete=False).name
class Groups2TestCase(unittest.TestCase):
def setUp(self):
self.file = FILE_NAME
f = netCDF4.Dataset(self.file,'w')
x = f.createDimension('x',10)
# create groups in path if they don't already exist
v = f.createVariable('/grouped/data/v',float,('x',))
g = f.groups['grouped']
# create groups underneath 'grouped'
v2 = g.createVariable('./data/data2/v2',float,('x',))
f.close()
def tearDown(self):
# Remove the temporary files
os.remove(self.file)
def runTest(self):
"""testing implicit group and creation and Dataset.__getitem__"""
f = netCDF4.Dataset(self.file, 'r')
v1 = f['/grouped/data/v']
v2 = ((f.groups['grouped']).groups['data']).variables['v']
g = f['/grouped/data']
v3 = g['data2/v2']
assert(v1 == v2)
assert(g == f.groups['grouped'].groups['data'])
assert(v3.name == 'v2')
f.close()
if __name__ == '__main__':
unittest.main()