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import cf
import numpy
import os
import tempfile
import time
def test(chunk_sizes=(17, 34, 60, 300, 100000)):
start_time = time.time()
print '----------------------------------------------------------'
print 'WGDOS packed PP data'
print '----------------------------------------------------------'
tmpfile = tempfile.mktemp('.test_cf-python')
print 'tmpfile =', tmpfile
original_chunksize = cf.CHUNKSIZE()
filename = os.path.join(os.path.dirname(os.path.abspath(__file__)),
"wgdos_packed.pp")
cf.CHUNKSIZE(10000000)
f = cf.read(filename)[0]
assert f.data.min() > 221.71, "Bad unpacking of WGDOS packed data"
assert f.data.max() < 310.45, "Bad unpacking of WGDOS packed data"
array = f.array
for chunksize in chunk_sizes[::-1]:
cf.CHUNKSIZE(chunksize)
f = cf.read(filename)[0]
print 'pmshape =',f.data._pmshape, 'chunksize =', chunksize
for fmt in ('CFA4', 'NETCDF4'):
cf.write(f, tmpfile, fmt=fmt)
assert f.equals(cf.read(tmpfile)[0], traceback=True), \
'Bad writing/reading. format='+fmt
#--- End: for
assert (f.array == array).all(), "Bad unpacking of WGDOS packed data"
#--- End: for
# Reset chunk size
cf.CHUNKSIZE(original_chunksize)
# Remove temporary file
os.remove(tmpfile)
time_elapsed = (time.time() - start_time)/60.0
print
print '---------------------------------------------------------------------------'
print 'All cf.pp tests passed for cf version', cf.__version__
print 'Running from', os.path.abspath(cf.__file__)
print 'Time elapsed: %f minutes' % time_elapsed
print '---------------------------------------------------------------------------'
print
#--- End: def
if __name__ == "__main__":
test()
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