def test2(self):
instance = SmallNInterface()
instance.initialize_code()
self.skip("index of the next particle not implemented correctly yet")
for i in [0, 1, 2]:
temp_particle = instance.new_particle(mass=i,
radius=1.0,
x=0.0,
y=0.0,
z=0.0,
vx=0.0,
vy=0.0,
vz=0.0)
self.assertEqual(i + 1, temp_particle['index_of_the_particle'])
instance.delete_particle(2)
self.assertEqual(
2,
instance.get_number_of_particles()['number_of_particles'])
self.assertEqual(
1,
instance.get_index_of_first_particle()['index_of_the_particle'])
self.assertEqual(
2,
instance.get_index_of_next_particle(1)
['index_of_the_next_particle'])
self.assertEqual(0, instance.get_index_of_next_particle(1)['__result'])
self.assertEqual(-1,
instance.get_index_of_next_particle(3)['__result'])
self.assertEqual(1, instance.get_index_of_next_particle(2)['__result'])
instance.cleanup_code()
instance.stop()
def xtest8(self):
instance = SmallNInterface()
instance.initialize_code()
instance.commit_parameters()
id1, errorcode = instance.new_particle(mass=10.0,
radius=1.0,
x=0.0,
y=0.0,
z=0.0,
vx=0.0,
vy=0.0,
vz=0.0)
id2, errorcode = instance.new_particle(mass=1.0,
radius=1.0,
x=2.0,
y=0.0,
z=0.0,
vx=10.0,
vy=0.0,
vz=0.0)
instance.commit_particles()
potential, errorcode = instance.get_potential(id1)
self.assertEqual(errorcode, 0)
self.assertAlmostRelativeEquals(potential, -1.0 / numpy.sqrt(2.0**2),
8)
total_potential, errorcode = instance.get_potential_energy()
potentials, errorcode = instance.get_potential([id1, id2])
instance.cleanup_code()
instance.stop()
self.assertAlmostRelativeEquals(
total_potential,
numpy.sum(potentials * [10.0, 1.0]) / 2.0)
def test9(self):
print "Test SmallNInterface evolve_model"
instance = SmallNInterface()
self.assertEquals(0, instance.initialize_code())
self.assertEquals(0, instance.set_eta(0.001))
self.assertEquals(0, instance.commit_parameters())
# Set up an equal-mass binary on a circular orbit:
self.assertEquals([1, 0],
instance.new_particle(0.5, 0.5, 0, 0, 0, 0.5, 0,
0.01).values())
self.assertEquals([2, 0],
instance.new_particle(0.5, -0.5, 0, 0, 0, -0.5, 0,
0.01).values())
self.assertEquals(0, instance.commit_particles())
self.assertEquals(0, instance.evolve_model(math.pi))
for result, expected in zip(
instance.get_position(1).values(), [-0.5, 0.0, 0.0, 0]):
self.assertAlmostEquals(result, expected, 3)
for result, expected in zip(
instance.get_position(2).values(), [0.5, 0.0, 0.0, 0]):
self.assertAlmostEquals(result, expected, 3)
self.assertEquals(0, instance.evolve_model(2 * math.pi))
#print instance.get_time()
#print instance.get_position(1), instance.get_velocity(1)
#print instance.get_position(2)
#for result, expected in zip(instance.get_position(1).values(), [0.5, 0.0, 0.0, 0]):
# self.assertAlmostEquals(result, expected, 3)
#for result, expected in zip(instance.get_position(2).values(), [-0.5, 0.0, 0.0, 0]):
# self.assertAlmostEquals(result, expected, 3)
self.assertEquals(0, instance.cleanup_code())
instance.stop()
def test6(self):
smalln = SmallNInterface()
smalln.initialize_code()
smalln.new_particle([10, 10], [-1, 1], [0, 0], [0, 0], [0, 0], [0, 0],
[0, 0], [1, 1])
retrieved_state = smalln.get_state(1)
self.assertFalse(hasattr(smalln, 'get_potential_at_point'))
#retr = smalln.get_potential_at_point(0.01, 0, 0, 0)
#self.assertEqual(retr['__result'], -1)
smalln.cleanup_code()
smalln.stop()
def test5(self):
smalln = SmallNInterface()
smalln.initialize_code()
smalln.new_particle([10, 20], [0, 0], [0, 0], [0, 0], [0, 0], [0, 0],
[0, 0], [1, 1])
retrieved_state = smalln.get_state(1)
self.assertEqual(10.0, retrieved_state['mass'])
self.assertEqual(1, retrieved_state['radius'])
retrieved_state = smalln.get_state([1, 2])
self.assertEqual(20.0, retrieved_state['mass'][1])
self.assertEqual(
smalln.get_number_of_particles()['number_of_particles'], 2)
smalln.cleanup_code()
smalln.stop()
def test1(self):
instance = SmallNInterface()
instance.initialize_code()
res1 = instance.new_particle(mass=11.0,
radius=2.0,
x=0.0,
y=0.0,
z=0.0,
vx=0.0,
vy=0.0,
vz=0.0)
res2 = instance.new_particle(mass=21.0,
radius=5.0,
x=10.0,
y=0.0,
z=0.0,
vx=10.0,
vy=0.0,
vz=0.0)
self.assertEqual(1, res1['index_of_the_particle'])
self.assertEqual(2, res2['index_of_the_particle'])
retrieved_state1 = instance.get_state(1)
retrieved_state2 = instance.get_state(2)
self.assertEqual(11.0, retrieved_state1['mass'])
self.assertEqual(21.0, retrieved_state2['mass'])
self.assertEqual(0.0, retrieved_state1['x'])
self.assertEqual(10.0, retrieved_state2['x'])
self.assertEqual(2.0, retrieved_state1['radius'])
self.assertEqual(5.0, retrieved_state2['radius'])
instance.cleanup_code()
instance.stop()
def test0(self):
instance = SmallNInterface()
instance.stop()
