def test2(self):
number_of_particles = 1000
black_hole_mass = 1.0e6 | units.MSun
stellar_mass = number_of_particles | units.MSun
scale_radius = 0.1 | units.parsec
converter = nbody_system.nbody_to_si(black_hole_mass, scale_radius)
particles = new_halogen_model(
number_of_particles,
convert_nbody=converter,
alpha=1.0,
beta=3.0,
gamma=1.0, # NFW
random_seed=1.0,
redirection='none',
black_hole_mass=black_hole_mass,
total_mass=stellar_mass,
cutoff_radius=10.0 * scale_radius,
scale_radius=scale_radius)
self.assertEquals(len(particles), number_of_particles + 1)
self.assertAlmostEquals(particles[-1].mass, black_hole_mass)
self.assertAlmostEquals(particles.total_mass(),
black_hole_mass + stellar_mass)
self.assertAlmostRelativeEquals(particles.kinetic_energy(),
2.27538127277e+43 | units.J, 10)
def test1(self):
number_of_particles = 100
particles = new_halogen_model(number_of_particles, alpha = 2.0, beta = 5.0, gamma = 0.0, random_seed = 1.0)
self.assertEquals(len(particles), number_of_particles)
self.assertAlmostEquals(particles.total_mass(), 1.0 | nbody_system.mass)
self.assertAlmostEquals(particles.kinetic_energy(),
0.17345836639 | nbody_system.energy) # for number_of_particles = 100
self.assertRaises(AmuseException, new_halogen_model, number_of_particles, expected_message =
"Error when calling 'commit_parameters' of a 'Halogen', errorcode is -2, error is "
"'Missing or bad parameter for halo (see amuse/community/halogen/src/doc for details on required parameters).'")
def test1(self):
number_of_particles = 100
particles = new_halogen_model(number_of_particles, alpha = 2.0, beta = 5.0, gamma = 0.0, random_seed = 1.0)
self.assertEqual(len(particles), number_of_particles)
self.assertAlmostEqual(particles.total_mass(), 1.0 | nbody_system.mass)
self.assertAlmostEqual(particles.kinetic_energy(),
0.17345836639 | nbody_system.energy) # for number_of_particles = 100
self.assertRaises(AmuseException, new_halogen_model, number_of_particles, expected_message =
"Error when calling 'commit_parameters' of a 'Halogen', errorcode is -2, error is "
"'Missing or bad parameter for halo (see amuse/community/halogen/src/doc for details on required parameters).'")
def test2(self):
number_of_particles = 1000
black_hole_mass = 1.0e6 | units.MSun
stellar_mass = number_of_particles | units.MSun
scale_radius = 0.1 | units.parsec
converter = nbody_system.nbody_to_si(black_hole_mass, scale_radius)
particles = new_halogen_model(number_of_particles, convert_nbody=converter,
alpha=1.0, beta=3.0, gamma=1.0, # NFW
random_seed=1.0, redirection='none',
black_hole_mass=black_hole_mass, total_mass=stellar_mass,
cutoff_radius=10.0*scale_radius, scale_radius=scale_radius)
self.assertEquals(len(particles), number_of_particles + 1)
self.assertAlmostEquals(particles[-1].mass, black_hole_mass)
self.assertAlmostEquals(particles.total_mass(), black_hole_mass + stellar_mass)
self.assertAlmostRelativeEquals(particles.kinetic_energy(),
2.27538127277e+43 | units.J, 10)