def test_fill():
h = Histogram(axis=Axis(100, -50, 50))
weight = 0.25
for i in xrange(-50,50) :
h.fill(i+0.5, weight)
assert h.entries() == 100
assert h.integral() == 100*weight
def test_integral() :
h = Histogram(axis=Axis(100, -50., 50.))
weight = 0.5
for x in xrange(10) :
h.fill(-49.99, weight) # should be 0th bin
h.fill(49.99, weight) # should be 100th bin, ie index 99
h.fill(0.1, 2*weight)
assert h.integral() == 10*4*weight
def test_integral_does_not_count_out_of_range_entries() :
h = Histogram(axis=Axis(100, -50., 50.))
h.fill(45.5, 10.)
h.fill(100.)
h.fill(-100)
assert h.integral() == 10.