def test_device_gates(device_gate_inputs, dot_readout_methods):
device = nt.Device(
name='test_fivedot',
device_type='doubledot_2D',
readout_methods=dot_readout_methods,
**device_gate_inputs,
)
assert len(device.gates) == 5
assert len(device.ohmics) == 1
assert len(device.sensor_gates) == 0
init_valid_ranges = {}
for gate in device.gates:
init_valid_ranges[gate.layout_id()] = gate.safety_range()
assert device.initial_valid_ranges() == init_valid_ranges
assert device.quality() == 0
readout_methods = device.readout_methods()
assert all(key in readout_methods for key in ['dc_current', 'dc_sensor'])
assert isinstance(readout_methods['dc_current'], qc.Parameter)
n_sct = device.normalization_constants()
assert isinstance(n_sct, dict)
assert all(key in n_sct for key in ['dc_current', 'dc_sensor', 'rf'])
assert device.sensor_side() == "left"
with pytest.raises(ValueError):
device.sensor_side("anywhere")
device.close()
def test_device_init_defaults():
device = nt.Device('test_fivedot', 'doubledot_2D')
assert not device.gates
assert not device.ohmics
assert device.snapshot()
device.close()
def test_device_snapshot(device_gate_inputs, dot_readout_methods):
device = nt.Device(
name='test_fivedot',
device_type='doubledot_2D',
readout_methods=dot_readout_methods,
**device_gate_inputs,
)
snap = device.snapshot()
assert isinstance(snap['parameters']['readout_methods'], dict)
snap_keys = list(snap['parameters']['readout_methods'].keys())
readout_methods = device.readout_methods().keys()
assert all(key in readout_methods for key in snap_keys)
for key in snap_keys:
assert isinstance(snap['parameters']['readout_methods'][key], dict)
device.close()
def device_pinchoff(pinchoff_dmm, device_gate_inputs):
readout_methods = {
'dc_current': pinchoff_dmm.po_current,
'dc_sensor': pinchoff_dmm.po_sensor,
}
device = nt.Device(
name='test_doubledot',
device_type='doubledot_2D',
readout_methods=readout_methods,
**device_gate_inputs,
)
pinchoff_dmm.po_current.gate = device.left_barrier
pinchoff_dmm.po_sensor.gate = device.left_barrier
try:
yield device
finally:
device.close()
def test_device_gate_methods(device_gate_inputs, dot_readout_methods):
device = nt.Device(
name='test_fivedot',
device_type='doubledot_2D',
readout_methods=dot_readout_methods,
**device_gate_inputs,
)
for gate in device.gates:
gate.dc_voltage(-1)
gate.relay_state('unknown')
device.all_gates_to_highest()
device.ground_gates()
for gate in device.gates:
assert gate.dc_voltage() == 0
assert gate.relay_state() == 'ground'
device.ohmics[0].relay_state('unknown')
device.float_ohmics()
assert device.ohmics[0].relay_state() == 'float'
device.close()