def test_parameter_replace(self):
par = Parameter(3, name='par')
selector = Function(
lambda *args: args[1],
name='selector',
parameters=(
Parameter('bla', name='first'),
par,
Parameter('blup', name='third'),
),
)
context = Parameter(2, name='pre_factor') * selector
# store parents and children for comparison
_children_before = par.get_children()
_parents_before = par.get_parents()
# replace node
par_new = Parameter(7, name='par_new')
par.replace(par_new)
par_new.value = 6
self.assertEqual(context.value, 12)
# retrieve new parents and children for comparison
_children_after = par_new.get_children()
_parents_after = par_new.get_parents()
self.assertEqual(_children_before, _children_after)
self.assertEqual(_parents_before, _parents_after)
def test_node_remove_parent(self):
par = Parameter(3, name='par')
parent_1 = Parameter(1, name='parent_1')
parent_2 = Parameter(2, name='parent_2')
parent_1.add_child(par)
parent_2.add_child(par)
with self.assertRaises(NodeException):
par.remove_parent(parent_1)
self.assertEqual(par.get_parents(), [parent_1, parent_2])
parent_1.remove_child(par)
self.assertEqual(par.get_parents(), [parent_2])
with self.assertRaises(TypeError):
par.remove_parent("notanode")
def test_node_set_parents(self):
par = Parameter(3, name='par')
parent_1 = Parameter(1, name='parent_1')
parent_2 = Parameter(2, name='parent_2')
par.set_parents([parent_1, parent_2])
self.assertEqual(par.get_parents(), [parent_1, parent_2])
def test_node_add_parent(self):
par = Parameter(3, name='par')
par_2 = Parameter(2, name='par_2')
with self.assertRaises(TypeError):
par.add_parent("notanode")
# Manually adding parents is not allowed:
with self.assertRaises(NodeException):
par.add_parent(par_2)
par_2.add_child(par)
self.assertEqual(par.get_parents(), [par_2])
