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# encoding: utf-8
# 2009 © Václav Šmilauer <eudoxos@arcig.cz>
"""
This test module covers python/c++ transitions, for both classes deriving from Serializable,
but also for other classes that we wrap (like miniEigen).
"""
import unittest
from yade.wrapper import *
from yade._customConverters import *
from math import *
from yade import system
from yade import *
from yade.minieigenHP import *
allClasses = system.childClasses('Serializable')
class TestObjectInstantiation(unittest.TestCase):
def setUp(self):
pass # no setup needed for tests here
def testClassCtors(self):
"Core: correct types are instantiated"
# correct instances created with Foo() syntax
for r in allClasses:
obj = eval(r)()
self.assertTrue(obj.__class__.__name__ == r, 'Failed for ' + r)
def testRootDerivedCtors_attrs_few(self):
"Core: class ctor's attributes"
# attributes passed when using the Foo(attr1=value1,attr2=value2) syntax
gm = Shape(wire=True)
self.assertTrue(gm.wire == True)
def testDispatcherCtor(self):
"Core: dispatcher ctors with functors"
# dispatchers take list of their functors in the ctor
# same functors are collapsed in one
cld1 = LawDispatcher([Law2_ScGeom_FrictPhys_CundallStrack(), Law2_ScGeom_FrictPhys_CundallStrack()])
self.assertTrue(len(cld1.functors) == 1)
# two different make two different, right?
cld2 = LawDispatcher([Law2_ScGeom_FrictPhys_CundallStrack(), Law2_ScGeom6D_CohFrictPhys_CohesionMoment()])
self.assertTrue(len(cld2.functors) == 2)
def testInteractionLoopCtor(self):
"Core: InteractionLoop special ctor"
# InteractionLoop takes 3 lists
id = InteractionLoop(
[Ig2_Facet_Sphere_ScGeom(), Ig2_Sphere_Sphere_ScGeom()],
[Ip2_FrictMat_FrictMat_FrictPhys()],
[Law2_ScGeom_FrictPhys_CundallStrack()],
)
self.assertTrue(len(id.geomDispatcher.functors) == 2)
self.assertTrue(id.geomDispatcher.__class__ == IGeomDispatcher().__class__)
self.assertTrue(id.physDispatcher.functors[0].__class__ == Ip2_FrictMat_FrictMat_FrictPhys().__class__)
self.assertTrue(id.lawDispatcher.functors[0].__class__ == Law2_ScGeom_FrictPhys_CundallStrack().__class__)
def testParallelEngineCtor(self):
"Core: ParallelEngine special ctor"
pe = ParallelEngine([InsertionSortCollider(), [BoundDispatcher(), ForceResetter()]])
self.assertTrue(pe.slaves[0].__class__ == InsertionSortCollider().__class__)
self.assertTrue(len(pe.slaves[1]) == 2)
pe.slaves = []
self.assertTrue(len(pe.slaves) == 0)
##
## testing incorrect operations that should raise exceptions
##
def testWrongFunctorType(self):
"Core: dispatcher and functor type mismatch is detected"
# dispatchers accept only correct functors
self.assertRaises(TypeError, lambda: LawDispatcher([Bo1_Sphere_Aabb()]))
def testInvalidAttr(self):
'Core: invalid attribute access raises AttributeError'
# accessing invalid attributes raises AttributeError
self.assertRaises(AttributeError, lambda: Sphere(attributeThatDoesntExist=42))
self.assertRaises(AttributeError, lambda: Sphere().attributeThatDoesntExist)
##
## attribute flags
##
def testTriggerPostLoad(self):
'Core: Attr::triggerPostLoad'
# TranslationEngine normalizes translationAxis automatically
# anything else could be tested
te = TranslationEngine()
te.translationAxis = (0, 2, 0)
self.assertTrue(te.translationAxis == (0, 1, 0))
def testHidden(self):
'Core: Attr::hidden'
# hidden attributes are not wrapped in python at all
self.assertTrue(not hasattr(Interaction(), 'iterLastSeen'))
def testNoSave(self):
'Core: Attr::noSave'
# update bound of the particle
O.bodies.append(utils.sphere((0, 0, 0), 1))
O.engines = [InsertionSortCollider([Bo1_Sphere_Aabb()]), NewtonIntegrator()]
O.step()
O.saveTmp(quiet=True)
mn0 = Vector3(O.bodies[0].bound.min)
O.reload(quiet=True)
mn1 = Vector3(O.bodies[0].bound.min)
# check that the minimum is not saved
self.assertTrue(not isnan(mn0[0]))
self.assertTrue(isnan(mn1[0]))
def _testReadonly(self):
'Core: Attr::readonly'
self.assertRaises(AttributeError, lambda: setattr(Body(), 'id', 3))
class TestEigenWrapper(unittest.TestCase):
def assertSeqAlmostEqual(self, v1, v2):
"floating-point comparison of vectors/quaterions"
self.assertEqual(len(v1), len(v2))
for i in range(len(v1)):
self.assertAlmostEqual(v1[i], v2[i], msg='Component ' + str(i) + ' of ' + str(v1) + ' and ' + str(v2))
def testVector2(self):
"Math: Vector2 operations"
v = Vector2(1, 2)
v2 = Vector2(3, 4)
self.assertTrue(v + v2 == Vector2(4, 6))
self.assertTrue(Vector2().UnitX.dot(Vector2().UnitY) == 0)
self.assertTrue(Vector2().Zero.norm() == 0)
def testVector3(self):
"Math: Vector3 operations"
v = Vector3(3, 4, 5)
v2 = Vector3(3, 4, 5)
self.assertTrue(v[0] == 3 and v[1] == 4 and v[2] == 5)
self.assertTrue(v.squaredNorm() == 50)
self.assertTrue(v == (3, 4, 5)) # comparison with list/tuple
self.assertTrue(v == [3, 4, 5])
self.assertTrue(v == v2)
x, y, z, one = Vector3().UnitX, Vector3().UnitY, Vector3().UnitZ, Vector3().Ones
self.assertTrue(x + y + z == one)
self.assertTrue(x.dot(y) == 0)
self.assertTrue(x.cross(y) == z)
def testQuaternion(self):
"Math: Quaternion operations"
# construction
q1 = Quaternion((0, 0, 1), pi / 2)
q2 = Quaternion(Vector3(0, 0, 1), pi / 2)
q1 == q2
x, y, z, one = Vector3().UnitX, Vector3().UnitY, Vector3().UnitZ, Vector3().Ones
self.assertSeqAlmostEqual(q1 * x, y)
self.assertSeqAlmostEqual(q1 * q1 * x, -x)
self.assertSeqAlmostEqual(q1 * q1.conjugate(), Quaternion().Identity)
self.assertSeqAlmostEqual(q1.toAxisAngle()[0], (0, 0, 1))
self.assertAlmostEqual(q1.toAxisAngle()[1], pi / 2)
def testMatrix3(self):
"Math: Matrix3 operations"
#construction
m1 = Matrix3(1, 0, 0, 0, 1, 0, 0, 0, 1)
# comparison
self.assertTrue(m1 == Matrix3().Identity)
# rotation matrix from quaternion
m1 = Quaternion(Vector3(0, 0, 1), pi / 2).toRotationMatrix()
# multiplication with vectors
self.assertSeqAlmostEqual(m1 * Vector3().UnitX, Vector3().UnitY)
# determinant
m2 = Matrix3(-2, 2, -3, -1, 1, 3, 2, 0, -1)
self.assertEqual(m2.determinant(), 18)
# inverse
inv = Matrix3(-0.055555555555556, 0.111111111111111, 0.5, 0.277777777777778, 0.444444444444444, 0.5, -0.111111111111111, 0.222222222222222, 0.0)
m2inv = m2.inverse()
self.assertSeqAlmostEqual(m2inv, inv)
# matrix-matrix multiplication
self.assertSeqAlmostEqual(Matrix3().Identity * Matrix3().Identity, Matrix3().Identity)
m3 = Matrix3(1, 2, 3, 4, 5, 6, -1, 0, 3)
m33 = m3 * m3
self.assertSeqAlmostEqual(m33, Matrix3(6, 12, 24, 18, 33, 60, -4, -2, 6))
# not really wm3 thing, but closely related
# no way to test this currently, as State::se3 is not serialized (State::pos and State::ori are serialized instead...)
#def testSe3Conversion(self):
# return
# pp=State()
# pp.se3=(Vector3().Zero,Quaternion().Identity)
# self.assertTrue(pp['se3'][0]==Vector3().Zero)
# self.assertTrue(pp['se3'][1]==Quaternion().Identity)
# pp.se3=((1,2,3),Quaternion((1,1,1),pi/4))
# self.assertTrue(pp['se3'][0]==(1,2,3))
# self.assertTrue(pp['se3'][0]==pp.pos)
# self.assertTrue(pp['se3'][1]==Quaternion((1,1,1),pi/4))
# self.assertTrue(pp['se3'][1]==pp.ori)
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