def test_gen_random_events(nevents, nparticles, dim, mass):
if mass == 'array':
mass = np.random.rand(nevents, nparticles)
events = ef.gen_random_events(nevents, nparticles, dim=dim, mass=mass)
assert events.shape == (nevents, nparticles, dim)
if mass != 'random':
assert epsilon_diff(ef.ms_from_ps(events)**2, mass**2, 10**-13)
def test_gen_random_events(nevents, nparticles, dim, mass):
if mass == 'array':
mass = np.random.rand(nevents, nparticles)
events = ef.gen_random_events(nevents, nparticles, dim=dim, mass=mass)
assert events.shape == (nevents, nparticles, dim)
if not (isinstance(mass, six.string_types) and mass == 'random'):
assert epsilon_diff(ef.ms_from_ps(events)**2, mass**2, 10**-13)
def test_ms_from_ps(dim, nevents, nparticles):
masses = np.random.rand(nevents, nparticles)
events = ef.gen_random_events(nevents, nparticles, mass=masses, dim=dim)
masses = masses.reshape(events.shape[:-1])
results = ef.ms_from_ps(events)
assert epsilon_diff(results, masses, 1e-10)
if dim == 4:
assert epsilon_diff(results, ef.ms_from_p4s(events), 1e-10)
def test_gen_random_events_mcom(nevents, nparticles, dim):
events = ef.gen_random_events_mcom(nevents, nparticles, dim=dim)
assert events.shape == (nevents, nparticles, dim)
assert epsilon_diff(ef.ms_from_ps(events)**2 / dim, 0, 10**-12)
assert epsilon_diff(np.sum(events, axis=1)[:, 1:], 0, 10**-12)
def test_gen_massless_phase_space(nevents, nparticles):
events = ef.gen_massless_phase_space(nevents, nparticles)
assert events.shape == (nevents, nparticles, 4)
assert epsilon_diff(ef.ms_from_ps(events)**2, 0, 10**-13)