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from __future__ import absolute_import, division, print_function, unicode_literals
import unittest
import os
import glob
import numpy as np
import h5py
import pytest
from subprocess import Popen, PIPE, STDOUT
import bitshuffle
plugin_dir = os.path.join(os.path.dirname(bitshuffle.__file__), "plugin")
os.environ["HDF5_PLUGIN_PATH"] = plugin_dir
H5VERSION = h5py.h5.get_libversion()
if H5VERSION[0] < 1 or (
H5VERSION[0] == 1
and (H5VERSION[1] < 8 or (H5VERSION[1] == 8 and H5VERSION[2] < 11))
):
H51811P = False
else:
H51811P = True
class TestFilterPlugins(unittest.TestCase):
@pytest.mark.skipif(
"CIBUILDWHEEL" in os.environ,
reason="Can't build dynamic HDF5 plugin into bitshuffle wheel.",
)
def test_plugins(self):
if not H51811P:
return
shape = (32 * 1024,)
chunks = (4 * 1024,)
dtype = np.int64
data = np.arange(shape[0])
fname = "tmp_test_filters.h5"
f = h5py.File(fname, "w")
dset = f.create_dataset(
"range", shape=shape, dtype=dtype, chunks=chunks, compression=32008
)
dset[:] = data
f.close()
# Make sure the filters are working outside of h5py by calling h5dump
h5dump = Popen(["h5dump", fname], stdout=PIPE, stderr=STDOUT)
stdout, nothing = h5dump.communicate()
err = h5dump.returncode
self.assertEqual(err, 0)
f = h5py.File(fname, "r")
d = f["range"][:]
self.assertTrue(np.all(d == data))
f.close()
def tearDown(self):
files = glob.glob("tmp_test_*")
for f in files:
os.remove(f)
if __name__ == "__main__":
unittest.main()
|
