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test_fiducialselection.py
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test_fiducialselection.py
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import numpy as np
import pygsti.algorithms.fiducialselection as fs
import pygsti.circuits as pc
from pygsti.circuits import Circuit
from pygsti.baseobjs import Label
import pygsti.models.modelconstruction as mc
from . import fixtures
from ..util import BaseCase
class FiducialSelectionUtilTester(BaseCase):
def test_build_bitvec_mx(self):
mx = fs.build_bitvec_mx(3, 1)
# TODO assert correctness
class FiducialSelectionStdModel(object):
def setUp(self):
super(FiducialSelectionStdModel, self).setUp()
self.model = fixtures.model.copy()
self.prep_fids = fixtures.prep_fids
self.meas_fids = fixtures.meas_fids
self.cand_fiducials = self.prep_fids + self.meas_fids
###
# _find_fiducials_integer_slack
#
class OptimizeIntegerFiducialsBase(object):
def setUp(self):
super(OptimizeIntegerFiducialsBase, self).setUp()
self.options = dict(
verbosity=4
)
def test_optimize_integer_fiducials_slack_frac(self):
fiducials = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials, slack_frac=0.1, **self.options
)
# TODO assert correctness
def test_optimize_integer_fiducials_slack_fixed(self):
fiducials = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials, fixed_slack=0.1, **self.options
)
# TODO assert correctness
def test_optimize_integer_fiducials_slack_initial_weights(self):
weights = np.ones(len(self.cand_fiducials), 'i')
fiducials = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials, fixed_slack=0.1,
initial_weights=weights, **self.options
)
# TODO assert correctness
def test_optimize_integer_fiducials_slack_return_all(self):
fiducials, weights, scores = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials, slack_frac=0.1, return_all=True,
**self.options
)
# TODO assert correctness
def test_optimize_integer_fiducials_slack_worst_score_func(self):
fiducials = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials, slack_frac=0.1,
score_func='worst', **self.options
)
# TODO assert correctness
def test_optimize_integer_fiducials_slack_fixed_num(self):
fiducials = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials, slack_frac=0.1, fixed_num=4,
**self.options
)
# TODO assert correctness
def test_optimize_integer_fiducials_slack_force_empty(self):
fiducials = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials, slack_frac=0.1, fixed_num=4,
force_empty=False, **self.options
)
# TODO assert correctness
def test_optimize_integer_fiducials_slack_low_max_iterations(self):
fiducials = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials, slack_frac=0.1, max_iter=1,
**self.options
)
# TODO assert correctness
def test_optimize_integer_fiducials_slack_insufficient_fiducials(self):
insuff_fids = [Circuit([Label('Gxpi2',0)], line_labels = (0,))]
weights = np.ones(len(insuff_fids), 'i')
fiducials = fs._find_fiducials_integer_slack(
self.model, insuff_fids, fixed_slack=0.1,
initial_weights=weights, **self.options
)
self.assertIsNone(fiducials)
def test_optimize_integer_fiducials_slack_raises_on_missing_slack_param(self):
with self.assertRaises(ValueError):
fs._find_fiducials_integer_slack(self.model, self.cand_fiducials, **self.options)
class OptimizeIntegerFiducialsExceptionTester(FiducialSelectionStdModel, BaseCase):
def test_optimize_integer_fiducials_slack_raises_on_missing_method(self):
with self.assertRaises(Exception):
fs._find_fiducials_integer_slack(self.model, self.cand_fiducials, fixed_slack=0.1)
class PrepOptimizeIntegerFiducialsStdModelTester(OptimizeIntegerFiducialsBase, FiducialSelectionStdModel, BaseCase):
def setUp(self):
super(PrepOptimizeIntegerFiducialsStdModelTester, self).setUp()
self.options.update(
prep_or_meas="prep"
)
class MeasOptimizeIntegerFiducialsStdModelTester(OptimizeIntegerFiducialsBase, FiducialSelectionStdModel, BaseCase):
def setUp(self):
super(MeasOptimizeIntegerFiducialsStdModelTester, self).setUp()
self.options.update(
prep_or_meas="meas"
)
###
# test_fiducial_list
#
# XXX class names prefixed with "Test" will be picked up by pytest
class _TestFiducialListBase(object):
def setUp(self):
super(_TestFiducialListBase, self).setUp()
self.fiducials_list = fs._find_fiducials_integer_slack(
self.model, self.cand_fiducials,
prep_or_meas=self.prep_or_meas, slack_frac=0.1
)
def test_test_fiducial_list(self):
self.assertTrue(fs.test_fiducial_list(
self.model, self.fiducials_list, self.prep_or_meas
))
def test_test_fiducial_list_worst_score_func(self):
self.assertTrue(fs.test_fiducial_list(
self.model, self.fiducials_list, self.prep_or_meas,
score_func='worst'
))
def test_test_fiducial_list_return_all(self):
result, spectrum, score = fs.test_fiducial_list(
self.model, self.fiducials_list, self.prep_or_meas,
return_all=True
)
# TODO assert correctness
class PrepTestFiducialListTester(_TestFiducialListBase, FiducialSelectionStdModel, BaseCase):
prep_or_meas = 'prep'
class MeasTestFiducialListTester(_TestFiducialListBase, FiducialSelectionStdModel, BaseCase):
prep_or_meas = 'meas'
class TestFiducialListExceptionTester(FiducialSelectionStdModel, BaseCase):
def test_test_fiducial_list_raises_on_bad_method(self):
with self.assertRaises(ValueError):
fs.test_fiducial_list(self.model, None, "foobar")
###
# _find_fiducials_grasp
#
class GraspFiducialOptimizationTester(FiducialSelectionStdModel, BaseCase):
def test_grasp_fiducial_optimization_prep(self):
fiducials = fs._find_fiducials_grasp(
self.model, self.cand_fiducials, prep_or_meas="prep", alpha=0.5,
verbosity=4
)
# TODO assert correctness
def test_grasp_fiducial_optimization_meas(self):
fiducials = fs._find_fiducials_grasp(
self.model, self.cand_fiducials, prep_or_meas="meas", alpha=0.5,
verbosity=4
)
# TODO assert correctness
def test_grasp_fiducial_optimization_raises_on_bad_method(self):
with self.assertRaises(ValueError):
fs._find_fiducials_grasp(
self.model, self.cand_fiducials, prep_or_meas="foobar",
alpha=0.5, verbosity=4
)
###
# _find_fiducials_greedy
#
class GreedyFiducialOptimizationTester(FiducialSelectionStdModel, BaseCase):
def test_greedy_fiducial_optimization_prep(self):
fiducials = fs._find_fiducials_greedy(
self.model, self.cand_fiducials, prep_or_meas="prep", evd_tol=1e-6,
verbosity=4
)
# TODO assert correctness
def test_greedy_fiducial_optimization_meas(self):
fiducials = fs._find_fiducials_greedy(
self.model, self.cand_fiducials, prep_or_meas="meas", evd_tol=1e-6,
verbosity=4
)
# TODO assert correctness
#End-to-end tests include the candidate list creation and deduping routines.
#For that reason the particular algorithm doesn't really matter so test using greedy.
class EndToEndFiducialOptimizationTester(FiducialSelectionStdModel, BaseCase):
def test_find_fiducials_non_clifford_dedupe(self):
fiducials, _ = fs.find_fiducials(
self.model, candidate_fid_counts = {3:'all upto'},
algorithm = 'greedy', algorithm_kwargs= {'evd_tol':1e-6},
assume_clifford = False, prep_fids=True, meas_fids=False,
verbosity=4
)
# TODO assert correctness
# for now at least check it is not None
self.assertTrue(fiducials is not None)
def test_find_fiducials_clifford_dedupe(self):
fiducials, _ = fs.find_fiducials(
self.model, candidate_fid_counts= {3:'all upto'},
algorithm = 'greedy', algorithm_kwargs= {'evd_tol':1e-6},
assume_clifford = True, prep_fids=True, meas_fids=False,
verbosity=4
)
# TODO assert correctness
# for now at least check it is not None
self.assertTrue(fiducials is not None)
def test_find_fiducials_end_to_end_default(self):
prepFiducials, measFiducials = fs.find_fiducials(self.model)
def find_fiducials_omit_operations(self):
target_model_idle = mc.create_explicit_model_from_expressions([('Q0',)], ['Gi','Gx','Gy'],
["I(Q0)", "X(pi/2,Q0)", "Y(pi/2,Q0)"])
omitIdentityPrepFids, omitIdentityMeasFids = fs.find_fiducials(target_model_idle, omit_identity=False,
ops_to_omit=['Gi'])