def test_sampling(self):
""" state fn circuit from dict initialize test """
statedict = {'101': .5, '100': .1, '000': .2, '111': .5}
sfc = CircuitStateFn.from_dict(statedict)
circ_samples = sfc.sample()
dict_samples = StateFn(statedict).sample()
vec_samples = StateFn(statedict).to_matrix_op().sample()
for k, v in circ_samples.items():
self.assertIn(k, dict_samples)
self.assertIn(k, vec_samples)
# It's ok if these are far apart because the dict is sampled.
self.assertAlmostEqual(v, np.abs(dict_samples[k])**.5, delta=.5)
self.assertAlmostEqual(v, np.abs(vec_samples[k])**.5, delta=.5)
def test_circuit_state_fn_from_dict_as_sum(self):
"""state fn circuit from dict as sum test """
statedict = {'1010101': .5,
'1000000': .1,
'0000000': .2j,
'1111111': 0.5j}
sfc_sum = CircuitStateFn.from_dict(statedict)
self.assertIsInstance(sfc_sum, SummedOp)
for sfc_op in sfc_sum.oplist:
self.assertIsInstance(sfc_op, CircuitStateFn)
samples = sfc_op.sample()
self.assertIn(list(samples.keys())[0], statedict)
self.assertEqual(sfc_op.coeff, statedict[list(samples.keys())[0]])
np.testing.assert_array_almost_equal(StateFn(statedict).to_matrix(), sfc_sum.to_matrix())
def test_circuit_state_fn_from_dict_initialize(self):
""" state fn circuit from dict initialize test """
statedict = {'101': .5, '100': .1, '000': .2, '111': .5}
sfc = CircuitStateFn.from_dict(statedict)
self.assertIsInstance(sfc, CircuitStateFn)
samples = sfc.sample()
np.testing.assert_array_almost_equal(
StateFn(statedict).to_matrix(),
np.round(sfc.to_matrix(), decimals=1))
for k, v in samples.items():
self.assertIn(k, statedict)
# It's ok if these are far apart because the dict is sampled.
self.assertAlmostEqual(v, np.abs(statedict[k])**.5, delta=.5)
# Follows same code path as above, but testing to be thorough
sfc_vector = CircuitStateFn.from_vector(StateFn(statedict).to_matrix())
np.testing.assert_array_almost_equal(
StateFn(statedict).to_matrix(), sfc_vector.to_matrix())
