directories.py

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import os
from traceback import format_exc
 
FILENAME = f"{__name__}.root"
 
 
def config():
    import GaudiConfig2.Configurables as C
    import GaudiConfig2.Configurables.Gaudi.Tests.Histograms.Directories as D
 
    algs = []
    tools = []
    svcs = []
 
    Alg = D.HistoGroupsAlg
    algs.append(Alg("Alg"))
 
    svcs.append(C.Gaudi.Histograming.Sink.Root(FileName=FILENAME))
    svcs.append(C.Gaudi.Monitoring.MessageSvcSink())
 
    yield from algs
    yield from tools
    yield from svcs
 
    yield C.ApplicationMgr(
        EvtMax=5,
        EvtSel="NONE",
        TopAlg=algs,
        ExtSvc=svcs,
    )
 
    # make sure the histogram file is not already there
    if os.path.exists(FILENAME):
        os.remove(FILENAME)
 
 
def check(causes, result):
    result["root_output_file"] = FILENAME
 
    if not os.path.exists(FILENAME):
        causes.append("missing histogram file")
        return False
 
    try:
        import ROOT
        f = ROOT.TFile.Open(FILENAME)
        for name in [
                f"{component}/{histogram}"
                for component in ["Alg", "Alg/Tool"] for histogram in
            ["Top", "Group/First", "Group/Second", "Group/SubGroup/Third"]
        ]:
            h = f.Get(name)
            assert h, f"missing histogram {name}"
 
    except AssertionError as err:
        causes.append(str(err))
        return False
 
    except Exception as err:
        causes.append("failure reading histogram file")
        result["python_exception"] = result.Quote(format_exc())
        return False
 
    return True