def test_stack():
stack = HistStack()
assert_equal(len(stack), 0)
stack.Add(Hist(10, 0, 1, fillstyle='solid', color='red'))
stack.Add(Hist(10, 0, 1, fillstyle='solid', color='blue'))
stack.Add(Hist(10, 0, 1, fillstyle='solid', color='green'))
assert_equal(len(stack), 3)
stack2 = stack.Clone()
assert_equal(stack2[2].linecolor, 'green')
# test stacked=True
a = Hist(2, 0, 1)
b = Hist(2, 0, 1)
a.Fill(0.2)
b.Fill(0.2)
b.Fill(0.8, 5)
stack = HistStack([a, b])
assert_equal(stack.min(), 2)
assert_equal(stack.max(), 5)
# test stacked=False
a = Hist(2, 0, 20)
b = Hist(2, 10, 20) # binning may be different
a.Fill(0.2)
b.Fill(15, 5)
stack = HistStack([a, b], stacked=False)
assert_equal(stack.min(), 0)
assert_equal(stack.max(), 5)
def test_stack():
stack = HistStack()
stack.Add(Hist(10, 0, 1, fillstyle='solid', color='red'))
stack.Add(Hist(10, 0, 1, fillstyle='solid', color='blue'))
stack.Add(Hist(10, 0, 1, fillstyle='solid', color='green'))
assert_equal(len(stack), 3)
stack2 = stack.Clone()
assert_equal(stack2[2].linecolor, 'green')