def test2(self):
instance = FDPSInterface()
instance.initialize_code()
instance.commit_parameters()
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.assertEquals(i, temp_particle['index_of_the_particle'])
instance.commit_particles()
self.assertEquals(0, instance.get_index_of_first_particle()['index_of_the_particle'])
self.assertEquals(1, instance.get_index_of_next_particle(0)['index_of_the_next_particle'])
self.assertEquals(2, instance.get_index_of_next_particle(1)['index_of_the_next_particle'])
instance.delete_particle(0)
self.assertEquals(2, instance.get_number_of_particles()['number_of_particles'])
#the deletion moves all next particles one id down, so 2 is copied to 1, and 1 to 0
self.assertEquals(1, instance.get_index_of_first_particle()['index_of_the_particle'])
self.assertEquals(1, instance.get_index_of_next_particle(2)['__result'])
instance.cleanup_code()
instance.stop()
def test8(self):
instance = FDPSInterface()
instance.initialize_code()
instance.set_epsilon_squared(0.1 * 0.1)
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 = 10.0, 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.assertEquals(errorcode, 0)
self.assertAlmostRelativeEquals(potential, -10.0 / numpy.sqrt(2.0**2 + 0.1**2), 8)
instance.cleanup_code()
instance.stop()
def test5(self):
interface = FDPSInterface()
interface.initialize_code()
interface.commit_parameters()
interface.new_particle([10,20],[0,0],[0,0], [0,0], [0,0], [0,0], [0,0],[1,1])
interface.commit_particles()
retrieved_state = interface.get_state(0)
self.assertEquals(10.0, retrieved_state['mass'])
self.assertEquals(1, retrieved_state['radius'])
retrieved_state = interface.get_state([0,1])
self.assertEquals(20.0, retrieved_state['mass'][1])
self.assertEquals(interface.get_number_of_particles()['number_of_particles'], 2)
interface.cleanup_code()
interface.stop()
def test1(self):
instance = FDPSInterface()
instance.initialize_code()
instance.commit_parameters()
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)
instance.commit_particles()
self.assertEquals(0, res1['index_of_the_particle'])
self.assertEquals(1, res2['index_of_the_particle'])
retrieved_state1 = instance.get_state(0)
retrieved_state2 = instance.get_state(1)
self.assertEquals(11.0, retrieved_state1['mass'])
self.assertEquals(21.0, retrieved_state2['mass'])
self.assertEquals(0.0, retrieved_state1['x'])
self.assertEquals(10.0, retrieved_state2['x'])
self.assertEquals(0, instance.get_index_of_first_particle()['index_of_the_particle'])
self.assertEquals(1, instance.get_index_of_next_particle(0)['index_of_the_next_particle'])
instance.cleanup_code()
instance.stop()