def METHOD_NAME(self):
    """ We test that basic operations are correctly handled """
    histo_list = copy.copy(self.histo_list)
    # "Testing 'Hist1 - 2.0 + 2.0 == Hist1'"
    my_hist = histo_list[0]+2.0
    my_hist = my_hist-2.0
    self.assertTrue(abs(2.0-(my_hist.bins[0].wgts['central']/histo_list[0].bins[0].wgts['central'])-\
    (my_hist.bins[0].wgts[('scale',1.0,2.0)]/histo_list[0].bins[0].wgts[('scale',1.0,2.0)]))<1.0e-14)
    # "Testing 'Hist1 - Hist2 + Hist2 == Hist1'"
    my_hist = histo_list[0]+histo_list[1]
    my_hist = my_hist-histo_list[1]
    self.assertTrue(abs(2.0-(my_hist.bins[0].wgts['central']/histo_list[0].bins[0].wgts['central'])-\
    (my_hist.bins[0].wgts[('scale',1.0,2.0)]/histo_list[0].bins[0].wgts[('scale',1.0,2.0)]))<1.0e-14)
    #"Testing 'Hist1 * 2.0 / 2.0 == Hist1'"
    my_hist = histo_list[0]*2.0
    my_hist = my_hist/2.0
    self.assertTrue(abs(2.0-(my_hist.bins[0].wgts['central']/histo_list[0].bins[0].wgts['central'])-\
    (my_hist.bins[0].wgts[('scale',1.0,2.0)]/histo_list[0].bins[0].wgts[('scale',1.0,2.0)]))<1.0e-14)
    #"Testing 'Hist1 * Hist2 / Hist2 == Hist1'"
    my_hist = histo_list[0]*histo_list[1]
    my_hist = my_hist/histo_list[1]
    self.assertTrue(abs(2.0-(my_hist.bins[0].wgts['central']/histo_list[0].bins[0].wgts['central'])-\
    (my_hist.bins[0].wgts[('scale',1.0,2.0)]/histo_list[0].bins[0].wgts[('scale',1.0,2.0)]))<1.0e-14)