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# -*- coding: utf-8 -*-
import os
import numpy
import cf
import unittest
import inspect
class RegridTest(unittest.TestCase):
filename1 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'file1.nc')
filename2 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'file2.nc')
filename3 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'file3.nc')
filename4 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'file4.nc')
filename5 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'test_file3.nc')
filename6 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'test_file2.nc')
filename7 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'file5.nc')
filename8 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'file6.nc')
filename9 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'file7.nc')
filename10 = os.path.join(os.path.dirname(os.path.abspath(__file__)),
'file8.nc')
chunk_sizes = (300, 10000, 100000)[::-1]
original_chunksize = cf.CHUNKSIZE()
test_only = ()
# test_only = ('NOTHING!!!!!',)
# test_only = ('test_Field_regrids',)
# test_only = ('test_Field_regridc',)
# test_only('test_Field_section',)
# test_only('test_Data_section',)
@unittest.skipUnless(cf._found_ESMF, "Requires esmf package.")
def test_Field_regrids(self):
if self.test_only and inspect.stack()[0][3] not in self.test_only:
return
original_atol = cf.ATOL(1e-12)
for chunksize in self.chunk_sizes:
cf.CHUNKSIZE(chunksize)
f1 = cf.read(self.filename1)
f2 = cf.read(self.filename2)
f3 = cf.read(self.filename3)
self.assertTrue(f3.equals(f1.regrids(f2), traceback=True),
'destination = global Field, CHUNKSIZE = %s' % chunksize)
self.assertTrue(f3.equals(f1.regrids(f2, method='conservative'), traceback=True),
'destination = global Field, CHUNKSIZE = %s' % chunksize)
dst = {'longitude': f2.dim('X'), 'latitude': f2.dim('Y')}
self.assertTrue(f3.equals(f1.regrids(dst, dst_cyclic=True),
traceback=True),
'destination = global dict, CHUNKSIZE = %s' % chunksize)
self.assertTrue(f3.equals(f1.regrids(dst, method='conservative',
dst_cyclic=True), traceback=True),
'destination = global dict, CHUNKSIZE = %s' % chunksize)
f4 = cf.read(self.filename4)
f5 = cf.read(self.filename5)
self.assertTrue(f4.equals(f1.regrids(f5), traceback=True),
'destination = regional Field, CHUNKSIZE = %s' % chunksize)
self.assertTrue(f4.equals(f1.regrids(f5, method='bilinear'), traceback=True),
'destination = regional Field, CHUNKSIZE = %s' % chunksize)
#--- End: for
cf.CHUNKSIZE(self.original_chunksize)
cf.ATOL(original_atol)
#--- End: def
@unittest.skipUnless(cf._found_ESMF, "Requires esmf package.")
def test_Field_regridc(self):
if self.test_only and inspect.stack()[0][3] not in self.test_only:
return
original_atol = cf.ATOL(1e-12)
for chunksize in self.chunk_sizes:
cf.CHUNKSIZE(chunksize)
f1 = cf.read(self.filename7)
f2 = cf.read(self.filename8)
f3 = cf.read(self.filename9)
self.assertTrue(f3.equals(f1.regridc(f2, axes='T', method='bilinear'), traceback=True),
'destination = time series, CHUNKSIZE = %s' % chunksize)
f4 = cf.read(self.filename1)
f5 = cf.read(self.filename2)
f6 = cf.read(self.filename10)
self.assertTrue(f6.equals(f4.regridc(f5, axes=('X', 'Y')),
traceback=True),
'destination = global Field, CHUNKSIZE = %s' % chunksize)
self.assertTrue(f6.equals(f4.regridc(f5, axes=('X', 'Y'), method='conservative'),
traceback=True),
'destination = global Field, CHUNKSIZE = %s' % chunksize)
dst = {'X': f5.dim('X'), 'Y': f5.dim('Y')}
self.assertTrue(f6.equals(f4.regridc(dst, axes=('X', 'Y')),
traceback=True),
'destination = global dict, CHUNKSIZE = %s' % chunksize)
self.assertTrue(f6.equals(f4.regridc(dst, axes=('X', 'Y'), method='conservative'),
traceback=True),
'destination = global dict, CHUNKSIZE = %s' % chunksize)
#--- End: for
cf.CHUNKSIZE(self.original_chunksize)
cf.ATOL(original_atol)
#--- End: def
def test_Field_section(self):
if self.test_only and inspect.stack()[0][3] not in self.test_only:
return
for chunksize in self.chunk_sizes:
cf.CHUNKSIZE(chunksize)
f = cf.read(self.filename6)
self.assertTrue(len(f.section(('X','Y'))) == 1800,
'CHUNKSIZE = %s' % chunksize)
#--- End: for
cf.CHUNKSIZE(self.original_chunksize)
#--- End: def
def test_Data_section(self):
if self.test_only and inspect.stack()[0][3] not in self.test_only:
return
for chunksize in self.chunk_sizes:
cf.CHUNKSIZE(chunksize)
f = cf.read(self.filename6)
self.assertTrue(list(sorted(f.Data.section((1,2)).keys()))
== [(x, None, None) for x in range(1800)])
#--- End: for
cf.CHUNKSIZE(self.original_chunksize)
#--- End: def
#--- End: class
if __name__ == "__main__":
print 'cf-python version:' , cf.__version__
print 'cf-python path:' , os.path.abspath(cf.__file__)
print ''
unittest.main(verbosity=2)
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