def test_get_randomized_value():
# Test randomization no boundaries (normal distribution)
p1 = Parameter('test_parameter', 1.0)
val2 = p1.get_randomized_value(0.1)
assert isinstance(val2, float)
# Test the randomized value with truncated normal, i.e., with boundaries
p2 = Parameter('test_parameter', 1.0, min_value=-5.0, max_value=5.0, delta=0.2, desc='test', free=False, unit='MeV')
val1 = p2.get_randomized_value(0.1)
assert p2.min_value <= val1 <= p2.max_value
# Test the same but with a large variance
val1 = p2.get_randomized_value(10.0)
assert p2.min_value <= val1 <= p2.max_value
p2.min_value = None
val1 = p2.get_randomized_value(10.0)
assert val1 <= p2.max_value
p2.min_value = -5.0
p2.max_value = None
val1 = p2.get_randomized_value(10.0)
assert val1 >= p2.min_value
def test_prior():
p1 = Parameter('test_parameter',
1.0,
min_value=-5.0,
max_value=5.0,
delta=0.2,
desc='test',
free=False,
unit='MeV')
my_prior = Uniform_prior()
p1.prior = my_prior
assert my_prior == p1.prior
custom_prior = lambda x: x**2
with pytest.raises(NotCallableOrErrorInCall):
p1.prior = custom_prior
invalid_prior = lambda x, y: x * y
with pytest.raises(NotCallableOrErrorInCall):
p1.prior = invalid_prior
# Test the set_uninformative_prior method
p1.min_value = None
p1.max_value = 100.0
with pytest.raises(ParameterMustHaveBounds):
p1.set_uninformative_prior(Uniform_prior)
p1.min_value = 0.0
p1.max_value = None
with pytest.raises(ParameterMustHaveBounds):
p1.set_uninformative_prior(Uniform_prior)
p1.min_value = 0.0
p1.max_value = 100.0
p1.set_uninformative_prior(Uniform_prior)
# Log-uniform cannot be used if minimum is 0.0
with pytest.raises(SettingOutOfBounds):
p1.set_uninformative_prior(Log_uniform_prior)
p1.min_value = 1.0
p1.set_uninformative_prior(Log_uniform_prior)
def test_internal_delta():
p = Parameter('test_parameter',1.0)
p.min_value = None
p.max_value = None
p._get_internal_delta()
p = Parameter('test_parameter', 1.0, min_value=0.1, max_value=5.0, delta=0.2, desc='test',
free=False, unit=u.MeV, prior=Uniform_prior(), is_normalization=True, transformation=LogarithmicTransformation())
p._get_internal_delta()
with pytest.raises(AssertionError):
p = Parameter('test_parameter', 1.0, min_value=-1., max_value=5.0, delta=0.2, desc='test',
free=False, unit=u.MeV, prior=Uniform_prior(), is_normalization=True, transformation=LogarithmicTransformation())
p = Parameter('test_parameter', 1.0, min_value=None, max_value=5.0, delta=0.2, desc='test',
free=False, unit=u.MeV, prior=Uniform_prior(), is_normalization=True, transformation=LogarithmicTransformation())
p._get_internal_delta()
def test_set_bounds_nounits():
p = Parameter('test_parameter', 1.0)
p.bounds = (-2.0 ,2.0)
assert p.min_value == -2.0
assert p.max_value == 2.0
p.display()
with pytest.warns(RuntimeWarning):
p.value = 1.0
p.min_value = 2.0
