def METHOD_NAME(fname='APS10BM_2019.dat'):
    bldat, labels = _tester(fname)
    assert('aps mrcat' in bldat.name.lower())
    assert(1 == bldat.energy_column)
    assert('eV' == bldat.energy_units)
    assert(len(labels) == 5)
    assert(labels[0]  == 'energy')
    assert(labels[1]  == 'io')
    assert(labels[2]  == 'it')
    assert(labels[3]  == 'iref')