def METHOD_NAME():
    """Test EnergySystem with numeric index (equidistant)"""
    time_increments = [1, 1, 1, 1, 1]
    es = solph.EnergySystem(timeincrement=time_increments)
    assert es.timeincrement[1] == 1.0
    assert pd.Series(es.timeincrement).sum() == 5