def test_empty_fix(self):
linear = {1: -1.3, 4: -0.5}
quadratic = {(1, 4): -0.6}
sampler = FixedVariableComposite(ExactSolver())
response = sampler.sample_ising(linear, quadratic)
self.assertIsInstance(response, SampleSet)
self.assertEqual(response.first.sample, {4: 1, 1: 1})
self.assertAlmostEqual(response.first.energy, -2.4)
def test_empty_bqm(self):
bqm = BinaryQuadraticModel(linear={1: -1.3, 4: -0.5},
quadratic={(1, 4): -0.6},
offset=0,
vartype=Vartype.SPIN)
fixed_variables = {1: -1, 4: -1}
sampler = FixedVariableComposite(ExactSolver())
response = sampler.sample(bqm, fixed_variables=fixed_variables)
self.assertIsInstance(response, SampleSet)
def test_sample(self):
bqm = BinaryQuadraticModel(linear={1: -1.3, 4: -0.5},
quadratic={(1, 4): -0.6},
offset=0,
vartype=Vartype.SPIN)
fixed_variables = {1: -1}
sampler = FixedVariableComposite(ExactSolver())
response = sampler.sample(bqm, fixed_variables=fixed_variables)
self.assertEqual(response.first.sample, {4: -1, 1: -1})
self.assertAlmostEqual(response.first.energy, 1.2)
def test_empty_bqm(self):
bqm = BinaryQuadraticModel({
1: -1.3,
4: -0.5
}, {(1, 4): -0.6},
0,
vartype=Vartype.SPIN)
fixed_variables = {1: -1, 4: -1}
with self.assertWarns(DeprecationWarning):
sampler = FixedVariableComposite(ExactSolver())
response = sampler.sample(bqm, fixed_variables=fixed_variables)
self.assertIsInstance(response, SampleSet)
def test_sample(self):
bqm = BinaryQuadraticModel({
1: -1.3,
4: -0.5
}, {(1, 4): -0.6},
0,
vartype=Vartype.SPIN)
fixed_variables = {1: -1}
with self.assertWarns(DeprecationWarning):
sampler = FixedVariableComposite(ExactSolver())
response = sampler.sample(bqm, fixed_variables=fixed_variables)
self.assertEqual(response.first.sample, {4: -1, 1: -1})
self.assertAlmostEqual(response.first.energy, 1.2)
def test_instantiation_smoketest(self):
with self.assertWarns(DeprecationWarning):
sampler = FixedVariableComposite(ExactSolver())
dtest.assert_sampler_api(sampler)
from dimod.vartypes import Vartype
import dimod
from dimod import BinaryQuadraticModel
from dimod import FixedVariableComposite, ExactSolver, RoofDualityComposite
from dimod import SampleSet
try:
import dwave.preprocessing as preprocessing
except ImportError:
preprocessing = False
if preprocessing:
@dimod.testing.load_sampler_bqm_tests(FixedVariableComposite(ExactSolver())
)
@dimod.testing.load_sampler_bqm_tests(
FixedVariableComposite(dimod.NullSampler()))
class TestFixedVariableComposite(unittest.TestCase):
def test_instantiation_smoketest(self):
with self.assertWarns(DeprecationWarning):
sampler = FixedVariableComposite(ExactSolver())
dtest.assert_sampler_api(sampler)
def test_sample(self):
bqm = BinaryQuadraticModel({
1: -1.3,
4: -0.5
}, {(1, 4): -0.6},
def test_instantiation_smoketest(self):
sampler = FixedVariableComposite(ExactSolver())
dtest.assert_sampler_api(sampler)