def setUp(self):
self.rfile = ROOT.TFile.Open('/tmp/testtree.root')
self.tree = self.rfile.Get('testtree')
self.nentries = self.tree.GetEntries()
# total no of elements in data
self.ndata = nplotted(self.tree, 'data')
self.splice = Tsplice(self.tree)
def test_layered(self):
splice = Tsplice(self.splice.reset(), layered=True)
splice.make_splice('pos_bar', 'bar>0')
tree = splice.make_splice('data_gt_500', 'data>500')
self.assertLess(nplotted(tree, 'bar'), 0.5 * self.nentries)
