test_canvas.py

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import Canvas
########################### Test canvas
print "\ntest : --- Testing canvas"
canvas = Canvas.Canvas()

import ROOT
root_file_name = "/nova/ana/users/tamsett/ana_valid/condor_output/validation/test_grid_validation/v3/inspect_dataset/v1/prod_decaf_S15-05-22a_nd_numi_numu_contain_goodruns/inspect_dataset.root"
open_root_file = ROOT.TFile(root_file_name)
assert open_root_file.IsOpen()

histogram = open_root_file.Get("SAM/definition_summary")
assert histogram

root_file_name_b = "/nova/ana/users/tamsett/ana_valid/condor_output/validation/test_grid_validation/v3/inspect_dataset/v1/prod_decaf_S15-05-22a_nd_numi_numu_contain_1426895999-to-2c_goodruns/inspect_dataset.root"
open_root_file_b = ROOT.TFile(root_file_name_b)
assert open_root_file_b.IsOpen()

histogram_b = open_root_file_b.Get("SAM/definition_summary")
assert histogram_b

canvas.draw([histogram, histogram_b], ["a","b"], "x;y;", colours=[ROOT.kRed, ROOT.kBlue], log_y=True, lines=[1,2], draw_option="hist")

print "test : --- passed\n"