def test_byte_offset(self):
""" check byte offset algorythm"""
cbf = fabio.open(self.cbf_filename)
starter = "\x0c\x1a\x04\xd5"
startPos = cbf.cif["_array_data.data"].find(starter) + 4
data = cbf.cif["_array_data.data"][startPos : startPos + int(cbf.header["X-Binary-Size"])]
startTime = time.time()
numpyRes = decByteOffet_numpy(data, size=cbf.dim1 * cbf.dim2)
tNumpy = time.time() - startTime
logger.info("Timing for Numpy method : %.3fs" % tNumpy)
# startTime = time.time()
# weaveRes = cbfimage.analyseWeave(data, size=cbf.dim1 * cbf.dim2)
# tWeave = time.time() - startTime
# delta = abs(numpyRes - weaveRes).max()
# self.assertAlmostEqual(0, delta)
# logger.info("Timing for Weave method : %.3fs, max delta=%s" % (tWeave, delta))
#
# startTime = time.time()
# pythonRes = decByteOffet_numpy(data, size=cbf.dim1 * cbf.dim2)
# tPython = time.time() - startTime
# delta = abs(numpyRes - pythonRes).max()
# self.assertAlmostEqual(0, delta)
# logger.info("Timing for Python method : %.3fs, max delta= %s" % (tPython, delta))
startTime = time.time()
cythonRes = decByteOffet_cython(stream=data, size=cbf.dim1 * cbf.dim2)
tCython = time.time() - startTime
delta = abs(numpyRes - cythonRes).max()
self.assertAlmostEqual(0, delta)
logger.info("Timing for Cython method : %.3fs, max delta= %s" % (tCython, delta))
def test_byte_offset(self):
""" check byte offset algorythm"""
cbf = fabio.open(self.cbf_filename)
starter = "\x0c\x1a\x04\xd5"
startPos = cbf.cif["_array_data.data"].find(starter) + 4
data = cbf.cif["_array_data.data"][startPos:startPos +
int(cbf.header["X-Binary-Size"])]
startTime = time.time()
numpyRes = decByteOffet_numpy(data, size=cbf.dim1 * cbf.dim2)
tNumpy = time.time() - startTime
logger.info("Timing for Numpy method : %.3fs" % tNumpy)
# startTime = time.time()
# weaveRes = cbfimage.analyseWeave(data, size=cbf.dim1 * cbf.dim2)
# tWeave = time.time() - startTime
# delta = abs(numpyRes - weaveRes).max()
# self.assertAlmostEqual(0, delta)
# logger.info("Timing for Weave method : %.3fs, max delta=%s" % (tWeave, delta))
#
# startTime = time.time()
# pythonRes = decByteOffet_numpy(data, size=cbf.dim1 * cbf.dim2)
# tPython = time.time() - startTime
# delta = abs(numpyRes - pythonRes).max()
# self.assertAlmostEqual(0, delta)
# logger.info("Timing for Python method : %.3fs, max delta= %s" % (tPython, delta))
startTime = time.time()
cythonRes = decByteOffet_cython(stream=data, size=cbf.dim1 * cbf.dim2)
tCython = time.time() - startTime
delta = abs(numpyRes - cythonRes).max()
self.assertAlmostEqual(0, delta)
logger.info("Timing for Cython method : %.3fs, max delta= %s" %
(tCython, delta))
def testSC(self):
"""test that datasets are unchanged after various comression/decompressions"""
obt_np = compression.decByteOffet_numpy(compression.compByteOffet_numpy(self.ds))
self.assertEqual(abs(self.ds - obt_np).max(), 0.0, "numpy algo")
obt_cy = compression.decByteOffet_cython(compression.compByteOffet_numpy(self.ds))
self.assertEqual(abs(self.ds - obt_cy).max(), 0.0, "cython algo")
obt_cy2 = compression.decByteOffet_cython(compression.compByteOffet_numpy(self.ds), self.ds.size)
self.assertEqual(abs(self.ds - obt_cy2).max(), 0.0, "cython algo_orig")
obt_we = compression.decByteOffet_weave(compression.compByteOffet_numpy(self.ds), self.ds.size)
self.assertEqual(abs(self.ds - obt_we).max(), 0.0, "weave algo")
def testSC(self):
"""test that datasets are unchanged after various comression/decompressions"""
obt_np = compression.decByteOffet_numpy(
compression.compByteOffet_numpy(self.ds))
self.assertEqual(abs(self.ds - obt_np).max(), 0.0, "numpy algo")
obt_cy = compression.decByteOffet_cython(
compression.compByteOffet_numpy(self.ds))
self.assertEqual(abs(self.ds - obt_cy).max(), 0.0, "cython algo")
obt_cy2 = compression.decByteOffet_cython(
compression.compByteOffet_numpy(self.ds), self.ds.size)
self.assertEqual(abs(self.ds - obt_cy2).max(), 0.0, "cython algo_orig")
obt_we = compression.decByteOffet_weave(
compression.compByteOffet_numpy(self.ds), self.ds.size)
self.assertEqual(abs(self.ds - obt_we).max(), 0.0, "weave algo")
