def test9(self):
print("Test HermiteInterface evolve_model")
instance = HermiteInterface()
self.assertEqual(0, instance.initialize_code())
self.assertEqual(0, instance.set_dt_param(0.001))
self.assertEqual(0, instance.set_end_time_accuracy_factor(0.0))
self.assertEqual(0, instance.commit_parameters())
# Set up an equal-mass binary on a circular orbit:
self.assertEqual([0, 0], list(instance.new_particle(0.5, 0.5, 0, 0, 0, 0.5, 0, 0.01).values()))
self.assertEqual([1, 0], list(instance.new_particle(0.5, -0.5, 0, 0, 0,-0.5, 0, 0.01).values()))
self.assertEqual(0, instance.commit_particles())
self.assertEqual(0, instance.evolve_model(math.pi))
for result, expected in zip(list(instance.get_position(0).values()), [-0.5, 0.0, 0.0, 0]):
self.assertAlmostEqual(result, expected, 3)
for result, expected in zip(list(instance.get_position(1).values()), [0.5, 0.0, 0.0, 0]):
self.assertAlmostEqual(result, expected, 3)
self.assertEqual(0, instance.evolve_model(2 * math.pi))
for result, expected in zip(list(instance.get_position(0).values()), [0.5, 0.0, 0.0, 0]):
self.assertAlmostEqual(result, expected, 3)
for result, expected in zip(list(instance.get_position(1).values()), [-0.5, 0.0, 0.0, 0]):
self.assertAlmostEqual(result, expected, 3)
self.assertEqual(0, instance.cleanup_code())
instance.cleanup_code()
instance.stop()
def test8(self):
instance = HermiteInterface()
instance.initialize_code()
instance.set_eps2(0)
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 test6(self):
hermite = HermiteInterface()
hermite.initialize_code()
hermite.new_particle([10,10],[-1,1],[0,0], [0,0], [0,0], [0,0], [0,0], [1,1])
retrieved_state = hermite.get_state(0)
retr = hermite.get_potential_at_point(0.01, 0,0,0)
self.assertEqual(retr['phi'], -20.0)
hermite.cleanup_code()
hermite.stop()
def test2(self):
instance = HermiteInterface()
instance.initialize_code()
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, temp_particle['index_of_the_particle'])
instance.delete_particle(1)
self.assertEqual(
2,
instance.get_number_of_particles()['number_of_particles'])
self.assertEqual(
0,
instance.get_index_of_first_particle()['index_of_the_particle'])
self.assertEqual(
2,
instance.get_index_of_next_particle(0)
['index_of_the_next_particle'])
self.assertEqual(0, instance.get_index_of_next_particle(0)['__result'])
self.assertEqual(-1,
instance.get_index_of_next_particle(1)['__result'])
self.assertEqual(1, instance.get_index_of_next_particle(2)['__result'])
instance.cleanup_code()
instance.stop()
def test5(self):
hermite = HermiteInterface()
hermite.initialize_code()
hermite.new_particle([10, 20], [0, 0], [0, 0], [0, 0], [0, 0], [0, 0],
[0, 0], [1, 1])
retrieved_state = hermite.get_state(0)
self.assertEqual(10.0, retrieved_state['mass'])
self.assertEqual(1, retrieved_state['radius'])
retrieved_state = hermite.get_state([0, 1])
self.assertEqual(20.0, retrieved_state['mass'][1])
self.assertEqual(
hermite.get_number_of_particles()['number_of_particles'], 2)
hermite.cleanup_code()
hermite.stop()
def test1(self):
instance = HermiteInterface()
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(0, res1['index_of_the_particle'])
self.assertEqual(1, res2['index_of_the_particle'])
retrieved_state1 = instance.get_state(0)
retrieved_state2 = instance.get_state(1)
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()