def METHOD_NAME(fname='CLSHXMA.dat'):
    bldat, labels = _tester(fname)
    assert(4 == bldat.energy_column)
    assert('eV' == bldat.energy_units)
    assert(len(labels) > 10)
    assert(labels[0]  == 'event_id')
    assert(labels[1]  == 'absenergyname')
    assert(labels[2]  == 'energyfeedback')
    assert(labels[3]  == 'energyachieved')
    assert(labels[4]  == 'detector1')