class VariableTest(unittest.TestCase):
"""
This only tests basic getters and setters, no constraint solving technology.
"""
def setUp(self):
self.variable = Variable("variable", 10, Mock())
self.variable.system.remove_constraint = Mock()
self.variable.system.add_stay_constraint = Mock()
def test_get_and_set_variable(self):
self.assertEqual(self.variable.get_value(), 10)
self.variable.set_value(5)
self.assertEqual(5, self.variable.get_value())
def test_stay(self):
self.assertTrue(self.variable.stay_constraint is None)
self.variable.stay()
self.assertFalse(self.variable.stay_constraint is None)
self.variable.system.add_stay_constraint.assert_called_with(self.variable,Strength.WEAK)
def test_stay_tow_times(self):
self.variable.stay()
self.assertFalse(self.variable.system.remove_constraint.called)
self.variable.stay(Strength.STRONG)
self.assertTrue(self.variable.system.remove_constraint.called)
self.variable.system.add_stay_constraint.assert_called_with(self.variable,Strength.STRONG)
class VariableTest(unittest.TestCase):
"""
This only tests basic getters and setters, no constraint solving technology.
"""
def setUp(self):
self.variable = Variable("variable", 10, Mock())
self.variable.system.remove_constraint = Mock()
self.variable.system._add_stay_constraint = Mock()
def test_get_and_set_variable(self):
self.assertEqual(self.variable.get_value(), 10)
self.variable.set_value(5)
self.assertEqual(5, self.variable.get_value())
def test_stay(self):
self.assertTrue(self.variable.stay_constraint is None)
self.variable.stay()
self.assertFalse(self.variable.stay_constraint is None)
self.variable.system._add_stay_constraint.assert_called_with(
self.variable, Strength.WEAK)
def test_stay_tow_times(self):
self.variable.stay()
self.assertFalse(self.variable.system.remove_constraint.called)
self.variable.stay(Strength.STRONG)
self.assertTrue(self.variable.system.remove_constraint.called)
self.variable.system._add_stay_constraint.assert_called_with(
self.variable, Strength.STRONG)
import sys
sys.path.append("../src")
sys.path.append("../tests")
from skypyblue.core import ConstraintSystem
from skypyblue.models import Constraint, Strength, Variable, Method
cs = ConstraintSystem()
v1 = Variable("v1", 16, cs)
v2 = Variable("v2", 16, cs)
v3 = Variable("v3", 16, cs)
v4 = Variable("v4", 10, cs)
v4.stay()
# v1 + v2 = v3, v1 - v2 = v4
m12_34 = Method([v1, v2], [v3, v4], lambda v1, v2: (v1 + v2, v1 - v2))
m34_12 = Method([v3, v4], [v1, v2], lambda v3, v4: ((v3 + v4) / 2,
(v3 - v4) / 2))
cn1 = Constraint(lambda v1, v2, v3, v4: v1 + v2 == v3 and v1 - v2 == v4,
Strength.STRONG, [v1, v2, v3, v4], [m12_34, m34_12])
cs.add_constraint(cn1)
def print_values():
print("v1 = " + str(v1.get_value()))
import sys
sys.path.append("../src")
sys.path.append("../tests")
from skypyblue.core import ConstraintSystem
from skypyblue.models import Constraint, Strength, Variable, Method
cs = ConstraintSystem()
v1 = Variable("v1", 16, cs)
v2 = Variable("v2", 16, cs)
v3 = Variable("v3", 16, cs)
v4 = Variable("v4", 10, cs)
v4.stay()
# v1 + v2 = v3, v1 - v2 = v4
m12_34 = Method([v1, v2], [v3, v4],
lambda v1, v2: (v1 + v2 , v1 - v2))
m34_12 = Method([v3, v4], [v1, v2],
lambda v3, v4: ((v3 + v4) / 2 , (v3 - v4) / 2))
cn1 = Constraint(
lambda v1, v2, v3, v4: v1 + v2 == v3 and v1 - v2 == v4,
Strength.STRONG,
[v1, v2, v3, v4],
[m12_34, m34_12])
cs.add_constraint(cn1)
class ExtendedMidpointTest(unittest.TestCase):
__name__ = "ExtendedMidpointTest"
def setUp(self):
self.constraint_system = ConstraintSystem()
self.point1 = Variable("Point 1", Point(4, 10), self.constraint_system)
self.point2 = Variable("Point 2", Point(10, 30), self.constraint_system)
self.point3 = Variable("Point 3", Point(50, 20), self.constraint_system)
self.point4 = Variable("Point 4", Point(100, 30), self.constraint_system)
self.midpoint = Variable("midpoint", Point(0, 0), self.constraint_system)
mpmp3p4 = Method([self.midpoint, self.point3, self.point4], [self.point1, self.point2],
lambda pm, p3, p4: (
Point(
pm.X - (p4.X - p3.X),
pm.Y - (p4.Y - p3.Y)
),
Point(
pm.X + (p4.X - p3.X),
pm.Y + (p4.Y - p3.Y)
)
)
)
mp1pmp3 = Method([self.point1, self.midpoint, self.point3], [self.point2, self.point4],
lambda p1, pm, p3: (
Point(
2 * pm.X - p1.X,
2 * pm.Y - p1.Y
),
Point(
p3.X + (pm.X - p1.X),
p3.Y + (pm.Y - p1.Y)
)
)
)
mpmp2p4 = Method([self.midpoint, self.point2, self.point4], [self.point1, self.point3],
lambda pm, p2, p4: (
Point(
2 * pm.X - p2.X,
2 * pm.Y - p2.Y
),
Point(
p4.X + (pm.X - p2.X),
p4.Y + (pm.Y - p2.Y)
)
)
)
constraint = Constraint(
lambda p1, p2, p3, p4, pm: pm.is_midpoint(p1, p2) and
p1.distance(pm) == p3.distance(p4),
Strength.STRONG,
[self.point1, self.point2, self.point3, self.point4, self.midpoint],
[mpmp3p4, mp1pmp3, mpmp2p4])
self.constraint_system.add_constraint(constraint)
self.point3.stay()
self.point4.stay()
def test_contraint(self):
pm = self.midpoint.get_value()
p1 = self.point1.get_value()
p2 = self.point2.get_value()
p3 = self.point3.get_value()
p4 = self.point4.get_value()
self.assertTrue(pm.is_midpoint(p1,p2))
self.assertTrue(p1.distance(pm) == p3.distance(p4))
def test_change_point1(self):
pm_old = self.midpoint.get_value()
self.point1.set_value(Point(0, 0))
self.test_contraint()
self.assertTrue(self.point1.get_value().equals(Point(0,0)))
self.assertTrue(self.midpoint.get_value().equals(pm_old))
def test_change_midpoint(self):
self.midpoint.set_value(Point(0, 0))
midpoint = self.midpoint.get_value()
self.test_contraint()
self.assertTrue(self.midpoint.get_value(), Point(0,0))
def test_change_point3(self):
pm_old = self.midpoint.get_value()
self.point3.set_value(Point(0, 0))
self.test_contraint()
self.assertTrue(self.point3.get_value().equals(Point(0,0)))
self.assertTrue(self.midpoint.get_value().equals(pm_old))
