def test_incorrect_number_of_measurements(self, measure_op, measure_name):
"""Test that an exception is raised if the compiler is called with a
device spec with an incorrect number of measurements"""
class DummyCompiler(Compiler):
"""A circuit with 2 modes"""
interactive = True
primitives = {
"MeasureHomodyne", "MeasureHeterodyne", "MeasureFock"
}
decompositions = set()
# set maximum number of measurements to 2, and measure 3 in prog below
device_dict = {
"target": "simulon_gaussian",
"modes": {
"pnr_max": 2,
"homodyne_max": 2,
"heterodyne_max": 2
},
"layout": "",
"gate_parameters": {},
"compiler": ["gaussian"],
}
device = sf.Device(spec=device_dict)
prog = sf.Program(3)
with prog.context as q:
for reg in q:
measure_op | reg
with pytest.raises(program.CircuitError,
match=f"contains 3 {measure_name} measurements"):
prog.compile(device=device, compiler=DummyCompiler())
def test_validate_gate_parameters_bb_program_invalid_param(self):
"""Test the ``.sf.program_utils.validate_gate_parameters`` function with a ``BlackbirdProgram``
when a parameter value is invalid"""
mock_layout = textwrap.dedent("""\
name mock
version 1.0
S2gate({squeezing_amplitude_0}, 0.0) | [0, 1]
""")
device_dict = {
"target": None,
"layout": mock_layout,
"modes": 2,
"compiler": ["DummyCompiler"],
"gate_parameters": {
"squeezing_amplitude_0": [0, 1],
},
}
mock_prog = bb.loads(mock_layout.format(squeezing_amplitude_0=42))
device = sf.Device(spec=device_dict)
with pytest.raises(ValueError, match="has invalid value 42"):
validate_gate_parameters(mock_prog, device)
def test_incorrect_modes(self):
"""Test that an exception is raised if the compiler
is called with a device spec with an incorrect number of modes"""
class DummyCompiler(Compiler):
"""A circuit with 2 modes"""
interactive = True
primitives = {"S2gate", "Interferometer"}
decompositions = set()
device_dict = {
"target": "simulon_gaussian",
"modes": 2,
"layout": "",
"gate_parameters": {},
"compiler": ["gaussian"],
}
device = sf.Device(spec=device_dict)
prog = sf.Program(3)
with prog.context as q:
ops.S2gate(0.6) | [q[0], q[1]]
ops.S2gate(0.6) | [q[1], q[2]]
with pytest.raises(
program.CircuitError,
match=
"program contains 3 modes, but the device 'simulon_gaussian' only supports a 2-mode program",
):
new_prog = prog.compile(device=device, compiler=DummyCompiler())
def test_validate_gate_parameters_sf_program_compiled(self):
"""Test the ``.sf.program_utils.validate_gate_parameters`` function with a compiled ``sf.Program``
when no device is passed"""
mock_layout = textwrap.dedent("""\
name mock
version 1.0
S2gate({squeezing_amplitude_0}, 0.0) | [0, 1]
""")
device_dict = {
"target": None,
"layout": mock_layout,
"modes": 2,
"compiler": ["DummyCompiler"],
"gate_parameters": {
"squeezing_amplitude_0": [0, 1],
},
}
mock_prog = sf.Program(2)
with mock_prog.context as q:
ops.S2gate(1) | q
device = sf.Device(spec=device_dict)
mock_prog._compile_info = (device, "compiler")
assert validate_gate_parameters(mock_prog)
def test_keyerror_assert_modes_dict(self):
"""Check that the correct error is raised when calling `prog.assert_number_of_measurements`
with an incorrect device spec modes entry."""
# set maximum number of measurements to 2, and measure 3 in prog below
device_dict = {
"target": "simulon_gaussian",
"modes": {
"max": {
"pnr": 2,
"homodyne": 2,
"heterodyne": 2
}
},
"layout": "",
"gate_parameters": {},
"compiler": ["gaussian"],
}
device = sf.Device(spec=device_dict)
prog = sf.Program(3)
with prog.context as q:
for reg in q:
ops.MeasureFock() | reg
match = "Expected keys for the maximum allowed number of PNR"
with pytest.raises(KeyError, match=match):
prog.assert_modes(device)
def test_assert_modes_dict(self, measure_op, measure_name):
"""Check that the correct error is raised when calling `prog.assert_number_of_measurements`
with the incorrect number of measurements in the circuit."""
# set maximum number of measurements to 2, and measure 3 in prog below
device_dict = {
"target": "simulon_gaussian",
"modes": {
"pnr_max": 2,
"homodyne_max": 2,
"heterodyne_max": 2
},
"layout": "",
"gate_parameters": {},
"compiler": ["gaussian"],
}
device = sf.Device(spec=device_dict)
prog = sf.Program(3)
with prog.context as q:
for reg in q:
measure_op | reg
with pytest.raises(program.CircuitError,
match=f"contains 3 {measure_name} measurements"):
prog.assert_modes(device)
def test_missing_layout(self):
"""Test that an error is raised if the device spec is missing a layout when compiled"""
device_dict = {
"target": None,
"layout": None,
"modes": 2,
"compiler": ["DummyCompiler"],
"gate_parameters": {
"squeezing_amplitude_0": [0, 1],
},
}
class DummyCompiler(Compiler):
"""A circuit with 2 modes"""
interactive = True
primitives = {"S2gate"}
decompositions = set()
device = sf.Device(spec=device_dict)
prog = sf.Program(2)
with prog.context as q:
ops.S2gate(0.6) | [q[0], q[1]]
with pytest.raises(ValueError, match="missing a circuit layout"):
new_prog = prog.compile(
device=device,
compiler=DummyCompiler(),
)
def test_missing_gate_parameters(self, gate_params):
"""Test that an error is raised if the device spec is missing gate parameters when compiled"""
mock_layout = textwrap.dedent("""\
name mock
version 1.0
S2gate({squeezing_amplitude_0}, 0.0) | [0, 1]
""")
device_dict = {
"target": None,
"layout": mock_layout,
"modes": 2,
"compiler": ["DummyCompiler"],
"gate_parameters":
gate_params, # no gate_parameters, so any value is valid
}
class DummyCompiler(Compiler):
"""A circuit with 2 modes"""
interactive = True
primitives = {"S2gate"}
decompositions = set()
device = sf.Device(spec=device_dict)
prog = sf.Program(2)
with prog.context as q:
ops.S2gate(123) | q
new_prog = prog.compile(
device=device,
compiler=DummyCompiler(),
)
assert len(new_prog) == 1
assert device.gate_parameters == gate_params
# test gates are correct
circuit = new_prog.circuit
assert circuit[0].op.__class__.__name__ == "S2gate"
def test_assert_modes_dict_wrong_entry(self):
"""Check that the correct error is raised when calling `prog.assert_number_of_measurements`
with the incorrect type of device spec mode entry."""
device_dict = {
"target": "simulon_gaussian",
"modes": "pnr",
"layout": "",
"gate_parameters": {},
"compiler": ["gaussian"],
}
device = sf.Device(spec=device_dict)
prog = sf.Program(3)
with prog.context as q:
ops.S2gate(0.6) | [q[0], q[1]]
ops.S2gate(0.6) | [q[1], q[2]]
with pytest.raises(
KeyError,
match="Expected keys for the maximum allowed number of PNR"):
prog.assert_modes(device)
def test_assert_number_of_modes(self):
"""Check that the correct error is raised when calling `prog.assert_modes`
with the incorrect number of modes."""
device_dict = {
"target": "abc",
"modes": 2,
"layout": "",
"gate_parameters": {},
"compiler": ["DummyCompiler"],
}
device = sf.Device(spec=device_dict)
prog = sf.Program(3)
with prog.context as q:
ops.S2gate(0.6) | [q[0], q[1]]
ops.S2gate(0.6) | [q[1], q[2]]
with pytest.raises(
program.CircuitError,
match=
"program contains 3 modes, but the device 'abc' only supports a 2-mode program",
):
prog.assert_modes(device)
def test_validate_parameters(self):
"""Test that the parameters are validated in the compile method"""
mock_layout = textwrap.dedent("""\
name mock
version 1.0
S2gate({squeezing_amplitude_0}, 0.0) | [0, 1]
""")
device_dict = {
"target": None,
"layout": mock_layout,
"modes": 2,
"compiler": ["DummyCompiler"],
"gate_parameters": {
"squeezing_amplitude_0": [0, 1],
},
}
class DummyCompiler(Compiler):
"""A circuit with 2 modes"""
interactive = True
primitives = {"S2gate"}
decompositions = set()
device = sf.Device(spec=device_dict)
prog = sf.Program(2)
with prog.context as q:
ops.S2gate(1.5) | q # invalid value 1.5
with pytest.raises(ValueError, match="has invalid value"):
prog.compile(
device=device,
compiler=DummyCompiler(),
)
def test_validate_gate_parameters_bb_program(self):
"""Test the ``.sf.program_utils.validate_gate_parameters`` function with a ``BlackbirdProgram``"""
mock_layout = textwrap.dedent("""\
name mock
version 1.0
S2gate({squeezing_amplitude_0}, 0.0) | [0, 1]
""")
device_dict = {
"target": None,
"layout": mock_layout,
"modes": 2,
"compiler": ["DummyCompiler"],
"gate_parameters": {
"squeezing_amplitude_0": [0, 1],
},
}
mock_prog = bb.loads(mock_layout.format(squeezing_amplitude_0=1))
device = sf.Device(spec=device_dict)
assert validate_gate_parameters(mock_prog, device)