def test_cksum():
# sanity check algorithm
digest = crc16_ccitt(b"123456789")
assert digest == 0x29B1
filename = cdir + "/../data/demo_ab.sor"
with open(filename, mode='rb') as fh:
data = fh.read()
assert len(data) == 25708
if sys.version_info > (3, 0):
# python 3
file_chk = data[-1] * 256 + data[-2]
else:
# python 2
file_chk = ord(data[-1]) * 256 + ord(data[-2])
assert file_chk == 38827
newdata = data[0:-2]
# print "* trunc size is ",len(newdata)
digest = crc16_ccitt(newdata)
assert digest == file_chk
devnull = open(os.devnull, "w")
# test against module (SOR version 1)
status, results, tracedata = pyOTDR.sorparse(filename,
debug=True,
logfile=devnull)
# print(results)
# print "* Our calcuated check sum: ",digest
assert results['Cksum']['checksum_ours'] == digest
# print("--------------- ok version 1 -----------------------")
# SOR version 2
filename = cdir + "/../data/sample1310_lowDR.sor"
status, results, tracedata = pyOTDR.sorparse(filename,
debug=True,
logfile=devnull)
# status, results, tracedata = pyOTDR.sorparse(filename, debug=True, logfile=sys.stderr)
assert results['Cksum']['checksum_ours'] == 62998
assert results['Cksum']['checksum'] == 59892
# print("--------------- ok version 2 -----------------------")
return
def main():
if len(sys.argv) < 2:
print("USAGE: %s SOR_file [format]" % sys.argv[0])
print(" : format: JSON (default) or XML")
sys.exit()
logging.basicConfig(format='%(message)s')
# logging.basicConfig()
filename = sys.argv[1]
opformat = "JSON"
if len(sys.argv) >= 3:
opformat = "XML" if sys.argv[2] == "XML" else "JSON"
status, results, tracedata = pyOTDR.sorparse(filename)
# construct data file name to dump results
fn_strip, ext = os.path.splitext(os.path.basename(filename))
if opformat == "JSON":
datafile = fn_strip + "-dump.json"
else:
datafile = fn_strip + "-dump.xml"
with open(datafile, "w") as output:
pyOTDR.tofile(results, output, format=opformat)
# construct data file name
fn_strip, ext = os.path.splitext(os.path.basename(filename))
opfile = fn_strip + "-trace.dat"
with open(opfile, "w") as output:
for xy in tracedata:
output.write(xy)
def _load_file(self, url, _project=False):
'''Load the raw SOR file from provided url into the internal data format'''
if not _project:
_, d_meta, l_raw_trace = sorparse(url)
d_meta["url"] = url
else:
d_meta = _project["meta"]
l_raw_trace = _project["raw_trace"]
self.files[url] = {"meta": d_meta, "raw_trace": l_raw_trace}
a_trace = self.__preprocess_data(d_meta, l_raw_trace)
d_data= prepare_data({"meta":d_meta, "trace":a_trace}, self.window_len)
filename = os.path.basename(url)
item = QtGui.QStandardItem(filename)
item.data = d_data
self.project_model.appendRow(item)
def test_map():
filename = cdir + "/../data/demo_ab.sor"
fh = parts.sorfile(filename)
assert fh != None
fh.close()
status, results, trace = pyOTDR.sorparse(filename)
assert status == 'ok'
# map block
ref = results['blocks']
assert ref['Cksum']['pos'] == 25706
assert ref['Cksum']['version'] == "1.00"
assert ref['DataPts']['pos'] == 328
assert ref['DataPts']['size'] == 23564
return
def _compare_(sor_filename):
filename = cdir+"/../data/"+sor_filename
fh = parts.sorfile(filename)
assert fh != None
fh.close()
devnull = open( os.devnull, "w")
status, results, tracedata = pyOTDR.sorparse(filename, debug=True, logfile=devnull)
assert status == 'ok'
# load and compare JSON file
fn_strip, ext = os.path.splitext( os.path.basename(filename) )
datafile = fn_strip+"-dump.json"
jsonfile = cdir+"/../data/"+datafile
with open(jsonfile) as jsf:
jold = dict( json.load(jsf, encoding=None) )
jnew = json.dumps(results, sort_keys=True )
jnew = json.loads(jnew)
jold = ordered(jold)
jnew = ordered(jnew)
assert jold == jnew
# load and compare trace data
tfile = fn_strip+"-trace.dat"
tfile = cdir+"/../data/"+tfile
with open(tfile) as jsf:
count = 0
for line in jsf:
assert line.strip('\n') == tracedata[count]
count += 1
return
def main():
if len(sys.argv) < 2:
print("USAGE: %s SOR_file [format]" % sys.argv[0])
print(" : format: JSON (default) or XML")
sys.exit()
filename = sys.argv[1]
opformat = "JSON"
if len(sys.argv) >= 3:
opformat = "XML" if sys.argv[2] == "XML" else "JSON"
logfile = sys.stdout
status, results, tracedata = pyOTDR.sorparse(filename,
debug=True,
logfile=logfile)
# construct data file name to dump results
fn_strip, ext = os.path.splitext(os.path.basename(filename))
if opformat == "JSON":
datafile = fn_strip + "-dump.json"
else:
datafile = fn_strip + "-dump.xml"
with open(datafile, "w") as output:
pyOTDR.tofile(results, output, format=opformat)
# construct data file name
fn_strip, ext = os.path.splitext(os.path.basename(filename))
opfile = fn_strip + "-trace.dat"
with open(opfile, "w") as output:
for xy in tracedata:
print(xy, file=output)
sys.exit()
def ConvertSORtoTPL(filename=None):
return pyOTDR.sorparse(filename)