def test_fill_template(self, connection, monkeypatch):
"""Test that the fill_template method works"""
prog = sf.tdm.tdmprogram.TDMProgram(2)
with prog.context([1, 2], [3, 4]) as (p, q):
sf.ops.Sgate(0.7, 0) | q[1]
sf.ops.BSgate(p[0]) | (q[0], q[1])
sf.ops.MeasureHomodyne(p[1]) | q[0]
spec = DeviceSpec(connection=connection,
spec=device_dict_tdm,
target="abc")
spec.fill_template(prog)
assert spec.layout == textwrap.dedent("""\
name template_td2
version 1.0
target abc (shots=1)
type tdm (temporal_modes=2)
float array p0[1, 2] =
{rs_array}
float array p1[1, 2] =
{bs_array}
float array p2[1, 2] =
{r_array}
float array p3[1, 2] =
{m_array}
Sgate(p0) | 1
BSgate(p1) | (1, 0)
Rgate(p2) | 1
MeasureHomodyne(p3) | 0
""")
def test_refresh(self, connection, monkeypatch):
"""Tests that the refresh method refreshes the device spec"""
spec = DeviceSpec(connection=connection,
spec=device_dict,
target="abc")
assert spec.modes == device_dict["modes"]
new_spec_dict = device_dict.copy()
new_spec_dict["modes"] = 42
monkeypatch.setattr(connection, "_get_device_dict",
lambda target: new_spec_dict)
spec.refresh()
assert spec.modes != device_dict["modes"]
assert spec.modes == 42
def test_initialization(self, connection):
"""Test that the device spec class initializes correctly."""
spec = DeviceSpec(connection=None, spec=device_dict, target="abc")
assert spec.target == "abc"
assert spec.layout == device_dict["layout"]
assert spec.modes == device_dict["modes"]
assert spec.compiler == device_dict["compiler"]
def test_gate_parameters(self):
"""Test that gate_parameters outputs the correctly parsed parameters"""
true_params = {
"squeezing_amplitude_0":
Ranges([0], [1], variable_name="squeezing_amplitude_0"),
"phase_0":
Ranges([0], [0, 6.3], variable_name="phase_0"),
"phase_1":
Ranges([0.5, 1.4], variable_name="phase_1"),
}
spec_params = DeviceSpec(connection=None,
spec=device_dict,
target="abc").gate_parameters
assert true_params == spec_params
def test_create_program(self, monkeypatch):
"""Test that the program creation works"""
circuit = [
"S2gate(0, 0) | (q[0], q[1])",
"MZgate(1.23, 0.5) | (q[0], q[1])",
"MeasureFock | (q[0], q[1])",
]
params = {"phase_0": 1.23}
prog = DeviceSpec(connection=None, spec=device_dict,
target="abc").create_program(**params)
assert prog.target is None
assert prog.name == "mock"
assert [str(cmd) for cmd in prog.circuit] == circuit
def test_compile_device_invalid_device_error(self, prog, monkeypatch,
caplog):
"""Tests that an error is raised if the program was compiled for
another device and recompilation was not requested."""
caplog.set_level(logging.INFO)
test_device_dict = mock_device_dict.copy()
test_device_dict["compiler"] = []
monkeypatch.setattr(Connection, "create_job",
lambda self, target, program, run_options: program)
monkeypatch.setattr(Connection, "_get_device_dict",
lambda *args: test_device_dict)
monkeypatch.setattr(Program, "compile",
lambda *args, **kwargs: self.MockProgram())
# Setting compile_info with a dummy devicespec and compiler name
X8_spec = DeviceSpec(target="DummyDevice", connection=None, spec=None)
prog._compile_info = (X8_spec, "dummy_compiler")
engine = sf.RemoteEngine("X8")
with pytest.raises(ValueError, match="Cannot use program compiled"):
program = engine.run_async(prog, shots=10)
def test_recompilation_precompiled(self, prog, monkeypatch, caplog):
"""Test that recompilation happens when:
1. the program was precompiled
2. but the recompile keyword argument was set to True.
The program is considered to be precompiled if program.compile_info was
set (setting it in the test case).
"""
caplog.set_level(logging.INFO)
test_device_dict = mock_device_dict.copy()
test_device_dict["compiler"] = []
monkeypatch.setattr(Connection, "create_job",
lambda self, target, program, run_options: program)
monkeypatch.setattr(Connection, "_get_device_dict",
lambda *args: test_device_dict)
monkeypatch.setattr(Program, "compile",
lambda *args, **kwargs: self.MockProgram())
# Setting compile_info
prog._compile_info = (None, "dummy_compiler")
# Setting compile_info with a dummy devicespec and compiler name
X8_spec = DeviceSpec(target="DummyDevice", connection=None, spec=None)
prog._compile_info = (X8_spec, "dummy_compiler")
engine = sf.RemoteEngine("X8")
compile_options = None
# Setting recompile in keyword arguments
program = engine.run_async(prog,
shots=10,
compile_options=compile_options,
recompile=True)
assert isinstance(program, self.MockProgram)
assert caplog.records[
-1].message == "Recompiling program for device X8_01 using compiler Xunitary."
def device_spec(self):
return DeviceSpec(target="X8", spec=mock_device_dict, connection=None)
def test_unknown_parameter(self, params):
"""Test that error is raised when an unknown parameter is supplied"""
with pytest.raises(ValueError,
match="not a valid parameter for this device"):
DeviceSpec(connection=None, spec=device_dict,
target="abc").create_program(**params)
def test_invalid_parameter_value(self, params):
"""Test that error is raised when an invalid parameter value is supplied"""
with pytest.raises(ValueError, match="has invalid value"):
DeviceSpec(connection=None, spec=device_dict,
target="abc").create_program(**params)
"phase_8": [0, [0, 6.283185307179586]],
"phase_9": [0, [0, 6.283185307179586]],
"phase_10": [0, [0, 6.283185307179586]],
"phase_11": [0, [0, 6.283185307179586]],
"final_phase_0": [0, [0, 6.283185307179586]],
"final_phase_1": [0, [0, 6.283185307179586]],
"final_phase_2": [0, [0, 6.283185307179586]],
"final_phase_3": [0, [0, 6.283185307179586]],
"final_phase_4": [0, [0, 6.283185307179586]],
"final_phase_5": [0, [0, 6.283185307179586]],
"final_phase_6": [0, [0, 6.283185307179586]],
"final_phase_7": [0, [0, 6.283185307179586]],
},
}
X8_spec = DeviceSpec(target="X8_01", connection=None, spec=test_spec)
def generate_X8_params(r, p):
return {
"squeezing_amplitude_0": r,
"squeezing_amplitude_1": r,
"squeezing_amplitude_2": r,
"squeezing_amplitude_3": r,
"phase_0": p,
"phase_1": p,
"phase_2": p,
"phase_3": p,
"phase_4": p,
"phase_5": p,
"phase_6": p,