def test_type_validator(self):
options = Options(meas_level=MeasLevel.KERNELED)
options.set_validator("meas_level", MeasLevel)
with self.assertRaises(TypeError):
options.update_options(meas_level=2)
options.update_options(meas_level=MeasLevel.CLASSIFIED)
self.assertEqual(2, options.meas_level.value)
def test_list_choice(self):
options = Options(method="auto")
options.set_validator("method", ["auto", "statevector", "mps"])
with self.assertRaises(ValueError):
options.update_options(method="stabilizer")
options.update_options(method="mps")
self.assertEqual(options.method, "mps")
def test_no_validators(self):
options = Options(shots=1024,
method="auto",
meas_level=MeasLevel.KERNELED)
self.assertEqual(options.shots, 1024)
options.update_options(method="statevector")
self.assertEqual(options.method, "statevector")
def test_range_bound_validator_multiple_fields(self):
options = Options(shots=1024,
method="auto",
meas_level=MeasLevel.KERNELED)
options.set_validator("shots", (1, 1024))
options.set_validator("method", ["auto", "statevector", "mps"])
options.set_validator("meas_level", MeasLevel)
with self.assertRaises(ValueError):
options.update_options(shots=2048, method="statevector")
options.update_options(shots=512, method="statevector")
self.assertEqual(options.shots, 512)
self.assertEqual(options.method, "statevector")
def test_overriding_instance_attributes(self):
"""Test that setting instance attributes and methods does not interfere with previously
defined attributes and methods. This produces an inconsistency where
>>> options = Options()
>>> options.validators = "hello"
>>> options.validators
{}
>>> options.get("validators")
"hello"
"""
options = Options(get="a string")
options.validator = "another string"
setattr(options, "update_options", "not a method")
options.update_options(_fields="not a dict")
options.__dict__ = "also not a dict"
self.assertEqual(
options.__dict__,
{
"get": "a string",
"validator": "another string",
"update_options": "not a method",
"_fields": "not a dict",
"__dict__": "also not a dict",
},
)
self.assertEqual(
options._fields,
{
"get": "a string",
"validator": "another string",
"update_options": "not a method",
"_fields": "not a dict",
"__dict__": "also not a dict",
},
)
self.assertEqual(options.validator, {})
self.assertEqual(options.get("_fields"), "not a dict")
def test_range_bound_validator(self):
options = Options(shots=1024)
options.set_validator("shots", (1, 4096))
with self.assertRaises(ValueError):
options.update_options(shots=8192)