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test_integrator.py
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test_integrator.py
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import numpy as np
import pytest
import psyneulink as pnl
import psyneulink.core.llvm as pnlvm
import psyneulink.core.components.functions.stateful.integratorfunctions as Functions
from psyneulink.core.components.functions.function import FunctionError
from psyneulink.core.components.functions.nonstateful.transferfunctions import Angle
from psyneulink.core.globals.parameters import ParameterError
np.random.seed(0)
SIZE=10
test_var = np.random.rand(SIZE)
test_initializer = np.random.rand(SIZE)
test_noise_arr = np.random.rand(SIZE)
RAND0_1 = np.random.random()
RAND2 = np.random.rand()
RAND3 = np.random.rand()
def SimpleIntFun(init, value, iterations, noise, rate, offset, **kwargs):
assert iterations == 3
if np.isscalar(noise):
if "initializer" in kwargs:
return [4.91845218, 4.78766907, 4.73758993, 5.04920442, 4.09842889,
4.2909061, 4.05866892, 5.23154257, 5.23413599, 4.86548903]
else:
return [4.12672714, 4.25877415, 4.16954537, 4.12360778, 4.02739283,
4.2037768, 4.03845052, 4.39892272, 4.45597924, 3.99547688]
elif isinstance(noise, pnl.DistributionFunction):
if "initializer" in kwargs:
return [6.07047464, 1.45183492, 2.13615798, 3.22296925, 3.29867927,
0.9734048, 2.54011924, 3.21213761, 1.54651058, 2.7026355, ]
else:
return [5.2787496, 0.92294, 1.56811342, 2.29737262, 3.22764321,
0.8862755, 2.51990084, 2.37951776, 0.76835383, 1.83262335]
else:
if "initializer" in kwargs:
return [5.53160614, 4.86244369, 3.79932695, 5.06809088, 2.1305511,
3.8879681, 2.16602771, 5.74284825, 4.47697989, 3.78677378]
else:
return [4.7398811, 4.33354877, 3.23128239, 4.14249424, 2.05951504,
3.8008388, 2.14580932, 4.9102284, 3.69882314, 2.91676163]
def AdaptiveIntFun(init, value, iterations, noise, rate, offset, **kwargs):
assert iterations == 3
if np.isscalar(noise):
if "initializer" in kwargs:
return [3.44619156, 3.44183529, 3.38970396, 3.49707692, 3.08413924,
3.22437653, 3.07231498, 3.66899395, 3.69062231, 3.37774376]
else:
return [3.13125441, 3.23144828, 3.16374378, 3.12888752, 3.05588209,
3.18971771, 3.06427238, 3.33778941, 3.38108243, 3.03166509]
elif isinstance(noise, pnl.DistributionFunction):
if "initializer" in kwargs:
return [4.18870661, 1.3561085, 1.69287182, 1.94643064, 2.12581409,
1.05242466, 2.05628752, 1.90164378, 1.18394637, 1.39578569]
else:
return [3.87376946, 1.14572149, 1.46691163, 1.57824123, 2.09755694,
1.01776584, 2.04824492, 1.57043925, 0.8744065, 1.04970702]
else:
if "initializer" in kwargs:
return [3.91143701, 3.49857235, 2.67777415, 3.51140748, 1.59096419,
2.91863753, 1.63622751, 4.05695955, 3.11611173, 2.55924237]
else:
return [3.59649986, 3.28818534, 2.45181396, 3.14321808, 1.56270704,
2.88397872, 1.62818492, 3.72575501, 2.80657186, 2.2131637]
def DriftIntFun(init, value, iterations, noise, **kwargs):
assert iterations == 3
if np.isscalar(noise):
if "initializer" not in kwargs:
return ([0.35782281, 4.03326927, 4.90427264, 0.90944534, 1.45943493,
2.31791882, 3.05580281, 1.20089146, 2.8408554 , 1.93964773],
[3., 3., 3., 3., 3., 3., 3., 3., 3., 3.])
else:
return ([1.14954785, 4.56216419, 5.4723172 , 1.83504198, 1.53047099,
2.40504812, 3.07602121, 2.0335113 , 3.61901215, 2.80965988],
[3., 3., 3., 3., 3., 3., 3., 3., 3., 3.])
else:
if "initializer" not in kwargs:
return ([0.17810305, 4.06675934, 4.20730295, 0.90582833, 1.60883329,
2.27822395, 2.2923697 , 1.10933472, 2.71418965, 1.86808107],
[3., 3., 3., 3., 3., 3., 3., 3., 3., 3.])
else:
return ([0.96982809, 4.59565426, 4.77534751, 1.83142497, 1.67986935,
2.36535325, 2.3125881 , 1.94195457, 3.4923464 , 2.73809322],
[3., 3., 3., 3., 3., 3., 3., 3., 3., 3.])
def DriftSphereFun(init, value, iterations, noise, **kwargs):
assert iterations == 3
if np.isscalar(noise):
if "initializer" not in kwargs:
return ([ 0.61237972, -0.00123971, -0.03658525, 0.06254701, -0.0946239,
0.29805191, 0.49116849, 0.5427334, 0.57919715, 0.15871794, 0.02219184])
else:
return ([-.132269048, .0000435051787, .0000387398441, -.00000395620568, .000127324586,
-.000501625256, -.000837794371, .125048720, .747570336, -.652303943, -.0000657270465])
else:
if "initializer" not in kwargs:
return ([ 0.70894136, 0.00176493, 0.10988845, -0.16462855, -0.17717841, 0.55087821,
0.39641091, 0.67452852, 0.09826617, 0.06205703, -0.01794999])
else:
return ([-.00372900858, -.000338148799, -.000643154678, .0000436274120, .000667038983,
-.00287440868, -.00208163440, .441976901, .531162110, -.722848147, .000466808385])
def LeakyFun(init, value, iterations, noise, **kwargs):
assert iterations == 3
if np.isscalar(noise):
if "initializer" not in kwargs:
return [2.20813608, 2.25674001, 2.22389663, 2.2069879, 2.17157305,
2.23649656, 2.17564317, 2.30832598, 2.32932737, 2.15982541]
else:
return [2.93867224, 2.74475902, 2.74803958, 3.06104933, 2.23711905,
2.31689203, 2.19429898, 3.07659637, 3.04734388, 2.96259823]
elif isinstance(noise, pnl.DistributionFunction):
if "initializer" not in kwargs:
return [2.55912037, 1.24455938, 1.43417309, 1.638423, 1.91298882,
1.22700281, 1.71226825, 1.67794471, 1.20395947, 1.48326449]
else:
return [3.28965653, 1.73257839, 1.95831604, 2.49248443, 1.97853482,
1.30739828, 1.73092406, 2.4462151, 1.92197598, 2.28603731]
else:
if "initializer" not in kwargs:
return [2.39694798, 2.27976578, 1.9349721, 2.21280371, 1.5655935,
2.11241762, 1.59283164, 2.46577518, 2.09617208, 1.82765063]
else:
return [3.12748415, 2.76778478, 2.45911505, 3.06686514, 1.6311395,
2.19281309, 1.61148745, 3.23404557, 2.81418859, 2.63042344]
GROUP_PREFIX="IntegratorFunction "
@pytest.mark.function
@pytest.mark.integrator_function
@pytest.mark.parametrize("variable, params", [
(test_var, {'rate':RAND0_1, 'offset':RAND3}),
(test_var, {'initializer':test_initializer, 'rate':RAND0_1, 'offset':RAND3}),
], ids=["Default", "Initializer"])
@pytest.mark.parametrize("noise", [RAND2, test_noise_arr, pnl.NormalDist],
ids=["SNOISE", "VNOISE", "FNOISE"])
@pytest.mark.parametrize("func", [
(Functions.AdaptiveIntegrator, AdaptiveIntFun),
(Functions.SimpleIntegrator, SimpleIntFun),
(Functions.DriftDiffusionIntegrator, DriftIntFun),
(Functions.DriftOnASphereIntegrator, DriftSphereFun),
(Functions.LeakyCompetingIntegrator, LeakyFun),
], ids=lambda x: x[0])
@pytest.mark.benchmark
def test_execute(func, func_mode, variable, noise, params, benchmark):
benchmark.group = GROUP_PREFIX + func[0].componentName
try:
noise = noise()
except TypeError as e:
if "object is not callable" not in str(e):
raise e from None
else:
assert isinstance(noise, pnl.DistributionFunction)
if func[1] == DriftIntFun or func[1] == DriftSphereFun:
pytest.skip("DriftDiffusionIntegrator doesn't support functional noise")
if 'DriftOnASphereIntegrator' in func[0].componentName:
if func_mode != 'Python':
pytest.skip("DriftDiffusionIntegrator not yet compiled")
params.update({'dimension':len(variable) + 1})
else:
if 'dimension' in params:
params.pop('dimension')
f = func[0](default_variable=variable, noise=noise, **params)
ex = pytest.helpers.get_func_execution(f, func_mode)
ex(variable)
ex(variable)
res = ex(variable)
expected = func[1](f.initializer, variable, 3, noise, **params)
for r, e in zip(res, expected):
assert np.allclose(r, e)
if benchmark.enabled:
benchmark(ex, variable)
def test_integrator_function_no_default_variable_and_params_len_more_than_1():
I = Functions.AdaptiveIntegrator(rate=[.1, .2, .3])
I.defaults.variable = np.array([0,0,0])
def test_integrator_function_default_variable_len_1_but_user_specified_and_params_len_more_than_1():
with pytest.raises(FunctionError) as error_text:
Functions.AdaptiveIntegrator(default_variable=[1], rate=[.1, .2, .3])
error_msg_a = 'The length of the array specified for the rate parameter'
error_msg_b = 'must match the length of the default input'
assert error_msg_a in str(error_text.value)
assert error_msg_b in str(error_text.value)
def test_integrator_function_default_variable_and_params_len_more_than_1_error():
with pytest.raises(FunctionError) as error_text:
Functions.AdaptiveIntegrator(default_variable=[0,0], rate=[.1, .2, .3])
error_msg_a = 'The length of the array specified for the rate parameter'
error_msg_b = 'must match the length of the default input'
assert error_msg_a in str(error_text.value)
assert error_msg_b in str(error_text.value)
def test_integrator_function_with_params_of_different_lengths():
with pytest.raises(FunctionError) as error_text:
Functions.AdaptiveIntegrator(rate=[.1, .2, .3], offset=[.4,.5])
error_msg_a = "The parameters with len>1 specified for AdaptiveIntegrator Function"
error_msg_b = "(['offset', 'rate']) don't all have the same length"
assert error_msg_a in str(error_text.value)
assert error_msg_b in str(error_text.value)
def test_integrator_function_with_default_variable_and_params_of_different_lengths():
with pytest.raises(FunctionError) as error_text:
Functions.AdaptiveIntegrator(default_variable=[0,0,0], rate=[.1, .2, .3], offset=[.4,.5])
error_msg_a = "The following parameters with len>1 specified for AdaptiveIntegrator Function"
error_msg_b = "don't have the same length as its 'default_variable' (3): ['offset']."
assert error_msg_a in str(error_text.value)
assert error_msg_b in str(error_text.value)
err_msg_initializer = "'initializer' must be a list or 1d array of length 3 (the value of the 'dimension' parameter minus 1)"
err_msg_angle_func = 'Variable shape incompatibility between (DriftOnASphereIntegrator DriftOnASphereIntegrator'
err_msg_noise = "must be a list or 1d array of length 3 (the value of the 'dimension' parameter minus 1)"
test_vars = [
({'initializer': 0.1}, err_msg_initializer, FunctionError),
({'initializer': [0.1,0.1]}, err_msg_initializer, FunctionError),
({'initializer': [0.1,0.1,0.1]}, None, None),
({'angle_function': Angle}, None, None),
({'angle_function': Angle()}, None, None),
({'angle_function': Angle([1,1])}, err_msg_angle_func, ParameterError),
({'angle_function': Angle([1,1,1])}, None, None),
({'noise': .01}, None, None),
({'noise': [.01, .5]}, err_msg_noise, FunctionError),
({'noise': [.01, .5, .99]}, None, None),
({'noise': [.01, .5, .99, .1]}, err_msg_noise, FunctionError)
]
names = [
"INITIALIZER_SCALAR", "INITIALIZER_2", "INITIALIZER_3",
"ANGLE_CLASS", "ANGLE_NONE", "ANGLE_2", "ANGLE_3",
"NOISE_SCALAR", "NOISE_2", "NOISE_3", "NOISE_4"
]
# FIX: CROSS WITH INITIALIZER SIZE:
@pytest.mark.parametrize("params, error_msg, error_type", test_vars, ids=names)
def test_drift_on_a_sphere_errors(params, error_msg, error_type):
if error_type:
with pytest.raises(error_type) as error_text:
Functions.DriftOnASphereIntegrator(dimension=4, params=params)
assert error_msg in str(error_text.value)
else:
Functions.DriftOnASphereIntegrator(dimension=4, params=params)