filemetadata.py

#!/usr/bin/env python3
 
 
 
from ROOT import Belle2
import os
import tempfile
import subprocess
import json
import basf2
from basf2.version import get_version
 
basf2.set_random_seed("something important")
 
testFile = tempfile.NamedTemporaryFile(prefix='b2filemetadata_')
 
# Generate a small test file
main = basf2.Path()
main.add_module('EventInfoSetter', evtNumList=[9, 1], runList=[1, 15], expList=[7, 7])
main.add_module('RootOutput', outputFileName=testFile.name, updateFileCatalog=False)
basf2.process(main)
 
# Check the file meta data (via DataStore)
metadata = Belle2.PyStoreObj('FileMetaData', 1)
 
# print (metadata.getLfn()) #?
assert 10 == metadata.getNEvents()
 
assert 7 == metadata.getExperimentLow()
assert 1 == metadata.getRunLow()
assert 1 == metadata.getEventLow()
assert 7 == metadata.getExperimentHigh()
assert 15 == metadata.getRunHigh()
assert 1 == metadata.getEventHigh()  # highest evt. no in highest run
assert metadata.containsEvent(7, 1, 1)
assert metadata.containsEvent(7, 1, 9)
assert metadata.containsEvent(7, 15, 1)
assert metadata.containsEvent(7, 1, 10)  # does not exist, but would be plausible
assert metadata.containsEvent(7, 3, 6)  # same
assert not metadata.containsEvent(7, 0, 10)  # does not exist, but would be plausible
assert not metadata.containsEvent(7, 16, 6)  # same
assert not metadata.containsEvent(0, 15, 6)
 
assert 0 == metadata.getNParents()
 
# print (metadata.getDate())
# assert socket.gethostname() == metadata.getSite()
# print (metadata.getUser()) #different env variables, not checked
assert "something important" == metadata.getRandomSeed()
 
assert get_version() == metadata.getRelease()
assert metadata.getSteering().startswith('#!/usr/bin/env python3')
assert metadata.getSteering().strip().endswith('dummystring')
assert 10 == metadata.getMcEvents()
 
 
os.system('touch Belle2FileCatalog.xml')
assert 0 == os.system('b2file-metadata-add --lfn /logical/file/name ' + testFile.name)
 
assert 0 == os.system('b2file-metadata-show ' + testFile.name)
 
# Check JSON output (contains steering file, so we cannotuse .out)
metadata_output = subprocess.check_output(['b2file-metadata-show', '--json', testFile.name])
m = json.loads(metadata_output.decode('utf-8'))
assert 7 == m['experimentLow']
assert 1 == m['runLow']
assert 1 == m['eventLow']
assert 7 == m['experimentHigh']
assert 15 == m['runHigh']
assert 1 == m['eventHigh']
assert 'something important' == m['randomSeed']
assert 10 == m['nEvents']
assert isinstance(m['nEvents'], int)
assert '/logical/file/name' == m['LFN']
 
# steering file is in metadata, so we check for existence of this string:
# dummystring