def test():
"""
Verify that the mean operator works as expected
"""
# externals
import statistics
# get the node class
from p2.calc.Node import Node as node
# make some nodes
nodes = [node.variable(value=v) for v in range(0, 100, 10)]
# construct a node that computes their mean
s = node.mean(operands=nodes)
# check the current value
assert s.getValue() == statistics.mean(range(0, 100, 10))
# adjust the values
for node, value in zip(nodes, range(0, 200, 20)):
node.setValue(value)
# check again
assert s.getValue() == statistics.mean(range(0, 200, 20))
# all done
return
def test():
"""
Verify that the product operator works as expected
"""
# externals
import functools
import operator
# get the node class
from p2.calc.Node import Node as node
# make some nodes
nodes = [node.variable(value=v) for v in range(0, 100, 10)]
# construct a node that computes their product
s = node.product(operands=nodes)
# check the current value
assert s.getValue() == functools.reduce(operator.mul, range(0, 100, 10))
# adjust the values
for node, value in zip(nodes, range(0, 200, 20)):
node.setValue(value)
# check again
assert s.getValue() == functools.reduce(operator.mul, range(0, 100, 10))
# all done
return
