Exemple #1
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    def test_get_pulses(self):
        pulse_sequence = PulseSequence()
        self.assertListEqual(pulse_sequence.get_pulses(), [])
        pulse1 = DCPulse(name='dc1', amplitude=1.5, duration=10, t_start=1)
        pulse2 = DCPulse(name='dc2', amplitude=2.5, duration=10, t_start=1)
        pulse3 = TriggerPulse(name='trig', duration=12, t_start=1)
        pulse_sequence.add(pulse1, pulse2, pulse3)

        subset_pulses = pulse_sequence.get_pulses()
        self.assertEqual(subset_pulses[0], pulse1)
        self.assertListEqual(subset_pulses, [pulse1, pulse2, pulse3])
        subset_pulses = pulse_sequence.get_pulses(t_start=1)
        self.assertListEqual(subset_pulses, [pulse1, pulse2, pulse3])
        subset_pulses = pulse_sequence.get_pulses(duration=10)
        self.assertListEqual(subset_pulses, [pulse1, pulse2])
        subset_pulses = pulse_sequence.get_pulses(amplitude=1.5)
        self.assertListEqual(subset_pulses, [pulse1])
        subset_pulses = pulse_sequence.get_pulses(amplitude=('>', 1.5))
        self.assertListEqual(subset_pulses, [pulse2])
        subset_pulses = pulse_sequence.get_pulses(amplitude=('>=', 1.5))
        self.assertListEqual(subset_pulses, [pulse1, pulse2])

        pulse = pulse_sequence.get_pulse(amplitude=1.5)
        self.assertEqual(pulse, pulse1)
        pulse = pulse_sequence.get_pulse(duration=12)
        self.assertEqual(pulse, pulse3)
        with self.assertRaises(RuntimeError):
            pulse_sequence.get_pulse(duration=10)
Exemple #2
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 def test_pulse_equality(self):
     pulse1 = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
     self.assertTrue(pulse1)
     pulse2 = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
     self.assertEqual(pulse1, pulse2)
     pulse3 = DCPulse(name='dc', amplitude=2.5, duration=10, t_start=0)
     self.assertNotEqual(pulse1, pulse3)
Exemple #3
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    def test_quick_add_pulse_id(self):
        pulses = [
            DCPulse('DC', duration=10),
            DCPulse('DC', duration=10),
            DCPulse('DC2', duration=10)
        ]
        pulse_sequence = PulseSequence()
        added_pulses = pulse_sequence.quick_add(*pulses)
        pulse_sequence.finish_quick_add()

        self.assertNotEqual(pulses, added_pulses)
        self.assertEqual(pulses[0].t_start, None)
        self.assertEqual(added_pulses[0].t_start, 0)
        self.assertEqual(added_pulses[1].t_start, 10)
        self.assertEqual(added_pulses[2].t_start, 20)

        self.assertEqual(pulses[0].full_name, 'DC')
        self.assertEqual(pulses[1].full_name, 'DC')
        self.assertEqual(pulses[2].full_name, 'DC2')

        self.assertEqual(added_pulses[0].full_name, 'DC[0]')
        self.assertEqual(added_pulses[1].full_name, 'DC[1]')
        self.assertEqual(added_pulses[2].full_name, 'DC2')

        self.assertEqual(pulse_sequence.duration, 30)
Exemple #4
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    def test_sort(self):
        pulse_sequence = PulseSequence()
        pulse1 = DCPulse(name='dc1', amplitude=1.5, duration=10, t_start=1)
        pulse2 = DCPulse(name='dc2', amplitude=1.5, duration=10, t_start=0)
        pulse_sequence.add(pulse1, pulse2)

        self.assertEqual(pulse_sequence[0], pulse2)
Exemple #5
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 def test_remove_reinstantiated_pulse(self):
     # Remove other pulse using .remove
     pulse_sequence = PulseSequence()
     pulse = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
     pulse_sequence.add(pulse)
     pulse2 = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
     pulse_sequence.remove(pulse2)  # Should work since all attributes match
     self.assertEqual(len(pulse_sequence.pulses), 0)
Exemple #6
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 def test_overlapping_pulses_different_connection_label(self):
     pulses = [
         DCPulse(t_start=0, duration=10, connection_label='con1'),
         DCPulse(t_start=5, duration=10, connection_label='con2')
     ]
     pulse_sequence = PulseSequence(allow_pulse_overlap=False)
     pulse_sequence.quick_add(*pulses)
     pulse_sequence.finish_quick_add()
Exemple #7
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 def test_initialize_with_pulses(self):
     pulse = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
     pulse2 = DCPulse(name='dc', amplitude=1.5, duration=10)
     pulse_sequence = PulseSequence(pulses=[pulse, pulse2])
     self.assertEqual(len(pulse_sequence), 2)
     self.assertEqual(pulse_sequence.pulses[0], pulse)
     self.assertNotEqual(pulse_sequence.pulses[1], pulse2)  #t_start differs
     pulse2.t_start = 10
     self.assertEqual(pulse_sequence.pulses[1], pulse2)
Exemple #8
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    def test_overlapping_pulses(self):
        pulses = [
            DCPulse(t_start=0, duration=10),
            DCPulse(t_start=5, duration=10)
        ]
        pulse_sequence = PulseSequence(allow_pulse_overlap=False)
        pulse_sequence.quick_add(*pulses)

        with self.assertRaises(AssertionError):
            pulse_sequence.finish_quick_add()
Exemple #9
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 def test_remove_wrong_pulse_remove(self):
     # Remove other pulse using .remove
     pulse_sequence = PulseSequence()
     pulse = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
     pulse_sequence.add(pulse)
     pulse2 = DCPulse(name='dc', amplitude=2, duration=10, t_start=0)
     with self.assertRaises(AssertionError):
         pulse_sequence.remove(
             pulse2)  # Should not work since different amplitude
     self.assertEqual(len(pulse_sequence.pulses), 1)
Exemple #10
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    def test_quick_add_pulses(self):
        pulses = [DCPulse(duration=10), DCPulse(duration=10)]
        pulse_sequence = PulseSequence()
        added_pulses = pulse_sequence.quick_add(*pulses)

        self.assertNotEqual(pulses, added_pulses)
        self.assertEqual(pulses[0].t_start, None)
        self.assertEqual(added_pulses[0].t_start, 0)
        self.assertEqual(added_pulses[1].t_start, 10)

        self.assertEqual(pulse_sequence.duration, 20)
Exemple #11
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    def test_transition_voltages(self):
        # To test transitions, pulses must be on the same connection
        channel_out = Channel('arbstudio', 'ch1', id=1, output=True)
        channel_in = Channel('device', 'input', id=1, output=True)
        c1 = SingleConnection(output_instrument='arbstudio',
                              output_channel=channel_out,
                              input_instrument='device',
                              input_channel=channel_in)
        pulses = [
            DCPulse(name='dc1',
                    amplitude=0,
                    duration=5,
                    t_start=0,
                    connection=c1),
            DCPulse(name='dc2',
                    amplitude=1,
                    duration=10,
                    t_start=5,
                    connection=c1),
            DCPulse(name='dc3',
                    amplitude=2,
                    duration=8,
                    t_start=15,
                    connection=c1),
            DCPulse(name='dc4',
                    amplitude=3,
                    duration=7,
                    t_start=12,
                    connection=c1)
        ]

        pulse_sequence = PulseSequence(pulses)

        self.assertRaises(TypeError, pulse_sequence.get_transition_voltages)
        self.assertRaises(TypeError,
                          pulse_sequence.get_transition_voltages,
                          connection=c1)
        self.assertRaises(TypeError,
                          pulse_sequence.get_transition_voltages,
                          t=5)

        transition_voltage = pulse_sequence.get_transition_voltages(
            pulse=pulses[1])
        self.assertTupleEqual(transition_voltage, (0, 1))

        transition_voltage = pulse_sequence.get_transition_voltages(
            connection=c1, t=5)
        self.assertTupleEqual(transition_voltage, (0, 1))

        transition_voltage = pulse_sequence.get_transition_voltages(
            connection=c1, t=15)
        self.assertTupleEqual(transition_voltage, (1, 2))
Exemple #12
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    def test_deepcopy_pulse_equality(self):
        p = DCPulse(t_start=2, duration=1)
        p_copy = deepcopy(p)
        self.assertEqual(p, p_copy)

        p_copy.duration = 2
        self.assertNotEqual(p, p_copy)

        p_copy.duration = 1
        self.assertEqual(p, p_copy)

        p.duration = 2
        self.assertNotEqual(p, p_copy)
    def test_arbstudio_pulseblaster(self):
        self.layout.acquisition_channels([])
        self.layout.primary_instrument('pulseblaster')
        self.layout.acquisition_instrument('ATS')
        self.layout.add_connection(output_arg='arbstudio.ch1',
                                   input_arg='chip.TGAC')
        self.layout.add_connection(output_arg='arbstudio.ch2',
                                   input_arg='chip.DF',
                                   default=True)

        self.layout.add_connection(output_arg='pulseblaster.ch1',
                                   input_arg='arbstudio.trig_in',
                                   trigger=True)

        trigger_connections = self.layout.get_connections(
            input_instrument='arbstudio', trigger=True)
        self.assertEqual(len(trigger_connections), 1)
        trigger_connection = trigger_connections[0]
        self.assertEqual(trigger_connection.output['instrument'],
                         'pulseblaster')

        pulse_sequence = PulseSequence()
        empty_pulse = DCPulse(name='empty',
                              t_start=0,
                              duration=10,
                              amplitude=1.5)
        load_pulse = DCPulse(name='load',
                             t_start=10,
                             duration=10,
                             amplitude=-1.5)
        read_pulse = DCPulse(name='read', t_start=20, duration=10, amplitude=0)
        pulses = [empty_pulse, load_pulse, read_pulse]
        for pulse in pulses:
            pulse_sequence.add(pulse)

        self.layout.pulse_sequence = pulse_sequence
        self.layout.setup()

        self.assertEqual(len(self.pulseblaster.instructions()), 7)
        self.assertEqual([ins[0] for ins in self.pulseblaster.instructions()],
                         [1, 0, 1, 0, 1, 0, 0])
        self.assertEqual(self.pulseblaster.instructions()[-1][2], 1)

        self.pulseblaster.instructions([])
        self.interfaces['pulseblaster'].ignore_first_trigger(True)
        self.layout.pulse_sequence = pulse_sequence
        self.layout.setup()

        self.assertEqual(len(self.pulseblaster.instructions()), 7)
        self.assertEqual([ins[0] for ins in self.pulseblaster.instructions()],
                         [0, 0, 1, 0, 1, 0, 1])
Exemple #14
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    def test_overlapping_random_pulses(self):
        for connection_label in [
                'connection1', 'connection2', 'connection3', None
        ]:
            pulses = []
            t = 0
            for k in range(30):
                duration = np.round(np.random.rand(), 11)
                pulses.append(
                    DCPulse('DC',
                            t_start=t,
                            duration=duration,
                            connection_label='connection1'))
                t += duration
            random.shuffle(pulses)

            pulse_sequence = PulseSequence(allow_pulse_overlap=False)
            pulse_sequence.quick_add(*pulses)
            pulse_sequence.finish_quick_add()  # No overlap

            # Add pulses with connection label
            second_pulses = []
            t = 0
            for k in range(30):
                duration = np.round(np.random.rand(), 11)
                second_pulses.append(
                    DCPulse('DC',
                            t_start=t,
                            duration=duration,
                            connection_label='connection2'))
                t += duration
            random.shuffle(second_pulses)

            pulse_sequence.quick_add(*second_pulses)
            pulse_sequence.finish_quick_add()  # No overlap

            # Add pulse that potentially overlaps based on connection_label
            overlapping_pulse = DCPulse(t_start=pulse_sequence.duration / 2,
                                        duration=1e-5,
                                        connection_label=connection_label)
            overlapping_pulse_copy, = pulse_sequence.quick_add(
                overlapping_pulse)

            if connection_label in ['connection1', 'connection2', None]:
                with self.assertRaises(AssertionError):
                    pulse_sequence.finish_quick_add()
            else:
                pulse_sequence.finish_quick_add()
                pulse_sequence.remove(overlapping_pulse_copy)
                pulse_sequence.finish_quick_add()
    def test_pulse_implementation(self):
        sine_pulse = SinePulse(t_start=0,
                               duration=10,
                               frequency=1e6,
                               amplitude=1)
        self.assertIsNone(
            self.arbstudio_interface.get_pulse_implementation(sine_pulse))

        DC_pulse = DCPulse(t_start=0, duration=10, amplitude=1)
        self.assertIsNotNone(
            self.arbstudio_interface.get_pulse_implementation(DC_pulse))
        DC_pulse.amplitude = 3
        self.assertIsNone(
            self.arbstudio_interface.get_pulse_implementation(DC_pulse))
Exemple #16
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    def test_add_multiple_pulses(self):
        pulse = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
        pulse2 = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=10)
        pulse_sequence = PulseSequence()
        pulse_sequence.add(pulse, pulse2)
        self.assertEqual(len(pulse_sequence), 2)
        self.assertEqual(pulse_sequence.pulses[0], pulse)
        self.assertEqual(pulse_sequence.pulses[1], pulse2)

        pulse3 = DCPulse(name='dc', amplitude=1.5, duration=10)
        pulse3_added, = pulse_sequence.add(pulse3)
        # This one shouldn't be equal since t_stop was not set
        self.assertNotEqual(pulse_sequence.pulses[2], pulse3)
        pulse3.t_start = pulse3_added.t_start
        self.assertEqual(pulse_sequence.pulses[2], pulse3)
Exemple #17
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    def test_quick_add_unsorted_pulses(self):
        pulses = []

        t = 0
        for k in range(30):
            duration = np.round(np.random.rand(), 11)
            pulses.append(DCPulse('DC', t_start=t, duration=duration))
            t += duration
        random.shuffle(pulses)

        pulse_sequence = PulseSequence()
        added_pulses = pulse_sequence.quick_add(*pulses)

        for pulse in added_pulses:
            self.assertEqual(pulse.id, None)

        pulse_sequence.finish_quick_add()

        t = 0
        for k, pulse in enumerate(pulse_sequence.pulses):
            self.assertEqual(pulse.id, k)
            self.assertAlmostEqual(pulse.t_start, t)
            t += pulse.duration

        self.assertAlmostEqual(pulse_sequence.duration, t)
Exemple #18
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    def test_pickle_pulse_sequence_two_pulses(self):
        p = DCPulse('pulse', duration=2, amplitude=3)
        pulse_sequence = PulseSequence(pulses=[p, p])
        self.assertEqual(pulse_sequence.pulses[0].full_name, 'pulse[0]')
        self.assertEqual(pulse_sequence.pulses[1].full_name, 'pulse[1]')
        self.assertEqual(pulse_sequence.pulses[0].t_start, 0)
        self.assertEqual(pulse_sequence.pulses[0].duration, 2)
        self.assertEqual(pulse_sequence.pulses[0].amplitude, 3)
        self.assertEqual(pulse_sequence.duration, 4)

        pickle_dump = pickle.dumps(pulse_sequence)
        pickled_pulse_sequence = pickle.loads(pickle_dump)
        self.assertEqual(pickled_pulse_sequence.pulses[0].full_name,
                         'pulse[0]')
        self.assertEqual(pickled_pulse_sequence.pulses[0].t_start, 0)
        self.assertEqual(pickled_pulse_sequence.pulses[0].duration, 2)
        self.assertEqual(pickled_pulse_sequence.pulses[0].amplitude, 3)

        self.assertEqual(pickled_pulse_sequence.pulses[1].full_name,
                         'pulse[1]')
        self.assertEqual(pickled_pulse_sequence.pulses[1].t_start, 2)
        self.assertEqual(pickled_pulse_sequence.pulses[1].duration, 2)
        self.assertEqual(pickled_pulse_sequence.pulses[1].amplitude, 3)

        self.assertEqual(pickled_pulse_sequence.duration, 4)
Exemple #19
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 def test_remove_pulse_remove(self):
     # Remove pulses using .remove
     pulse_sequence = PulseSequence()
     pulse = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
     pulse_sequence.add(pulse)
     pulse_sequence.remove(pulse)
     self.assertEqual(len(pulse_sequence.pulses), 0)
Exemple #20
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 def test_remove_wrong_pulse_by_name(self):
     # Remove pulses using .remove
     pulse_sequence = PulseSequence()
     pulse = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
     pulse_sequence.add(pulse)
     with self.assertRaises(AssertionError):
         pulse_sequence.remove('dc2')
     self.assertEqual(len(pulse_sequence.pulses), 1)
 def test_ELR_programming(self):
     empty_pulse = DCPulse(name='empty',
                           t_start=0,
                           duration=10,
                           amplitude=1.5)
     load_pulse = DCPulse(name='load',
                          t_start=10,
                          duration=10,
                          amplitude=-1.5)
     read_pulse = DCPulse(name='read', t_start=20, duration=10, amplitude=0)
     pulses = [empty_pulse, load_pulse, read_pulse]
     for pulse in pulses:
         targeted_pulse = self.arbstudio_interface.get_pulse_implementation(
             pulse)
         self.arbstudio_interface.pulse_sequence.add(targeted_pulse)
     self.assertEqual(len(pulses),
                      len(self.arbstudio_interface.pulse_sequence.pulses))
Exemple #22
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    def test_getitem(self):
        pulse_sequence = PulseSequence()
        pulse1, = pulse_sequence.add(DCPulse('DC', duration=1))

        self.assertIs(pulse_sequence['DC'], pulse1)
        self.assertIs(pulse_sequence['duration'],
                      pulse_sequence.parameters['duration'])

        pulse1.id = 0
        self.assertIs(pulse_sequence['DC'], pulse1)
        self.assertIs(pulse_sequence['DC[0]'], pulse1)

        pulse2, = pulse_sequence.add(DCPulse('DC', duration=1))
        self.assertIs(pulse_sequence['DC[0]'], pulse1)
        self.assertIs(pulse_sequence['DC[1]'], pulse2)
        with self.assertRaises(KeyError):
            pulse_sequence['DC']
Exemple #23
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    def test_add_remove_pulse(self):
        pulse_sequence = PulseSequence()
        self.assertFalse(pulse_sequence)

        pulse = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
        pulse_sequence.add(pulse)
        self.assertIn(pulse, pulse_sequence)
        self.assertTrue(pulse_sequence)
Exemple #24
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    def test_pulse_snapshotting(self):
        pulse = DCPulse('DC', duration=2)
        snapshot = pulse.snapshot()

        for parameter_name, parameter in pulse.parameters.items():
            if parameter.unit:
                parameter_name += f' ({parameter.unit})'
            self.assertIn(parameter_name,
                          snapshot,
                          msg=f'{parameter_name} not present')
            if snapshot[parameter_name] != parameter():
                print('hi')
            self.assertEqual(snapshot.pop(parameter_name),
                             parameter(),
                             msg=f'{parameter} not equal')
        self.assertEqual('silq.pulses.pulse_types.DCPulse',
                         snapshot.pop('__class__'))
        self.assertFalse(snapshot, f'snapshot exists')
Exemple #25
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    def setup(self, **kwargs):
        for channel in self.instrument.channels:
            channel.instruction_sequence().clear()
        self.instrument.channels.output_enable(False)
        self.instrument.channels.pcdds_enable(True)

        assert self.use_trig_in(
        ), "Interface not yet programmed for pxi triggering"

        # First pulses are 0V DC pulses
        # t_start and duration must be set but are irrelevant
        DC_0V_pulse = self.get_pulse_implementation(
            DCPulse('initial_0V', t_start=0, duration=0, amplitude=0))
        current_pulses = {
            channel.name: DC_0V_pulse
            for channel in self.active_instrument_channels
        }
        # for channel in self.active_instrument_channels:
        # current_pulses[channel.name]: copy(DC_0V_pulse)
        # current_pulses[channel.name].t_start = 0
        # next_pulse = next(self.pulse_sequence.get_pulses(output_channel=channel.name))
        # current_pulses[channel.name].t_stop = next_pulse.t_start

        for channel in self.active_instrument_channels:
            current_pulse = current_pulses[channel.name]
            pulse_implementation = current_pulse.implementation.implement()
            pulse_implementation['pulse_idx'] = 0
            pulse_implementation['next_pulse'] = 1
            channel.write_instr(pulse_implementation)

        total_instructions = len(self.pulse_sequence.t_list)
        for pulse_idx, t in enumerate(self.pulse_sequence.t_list):
            if t == self.pulse_sequence.duration:
                continue
            pulse_idx += 1  # We start with 1 since we have initial 0V pulse
            for channel in self.active_instrument_channels:
                active_pulse = self.pulse_sequence.get_pulse(
                    t_start=t, output_channel=channel.name)
                if active_pulse is not None:  # New pulse starts
                    current_pulses[channel.name] = active_pulse
                elif t >= current_pulses[channel.name].t_stop:
                    current_pulses[channel.name] = DC_0V_pulse

                pulse_implementation = current_pulses[
                    channel.name].implementation.implement()
                pulse_implementation['pulse_idx'] = pulse_idx
                if pulse_idx + 1 < total_instructions:
                    pulse_implementation['next_pulse'] = pulse_idx + 1
                else:
                    # Loop back to second pulse (ignore first 0V pulse)
                    pulse_implementation['next_pulse'] = 1
                channel.write_instr(pulse_implementation)

        # targeted_pulse_sequence is the pulse sequence that is currently setup
        self.targeted_pulse_sequence = self.pulse_sequence
        self.targeted_input_pulse_sequence = self.input_pulse_sequence
Exemple #26
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    def test_deepcopy_copy_pulse_equality(self):
        p = DCPulse(t_start=2, duration=1)
        p_copy = deepcopy(p)

        p_copy.t_start = 3
        p_copy2 = copy(p_copy)

        self.assertNotEqual(p, p_copy)
        self.assertNotEqual(p, p_copy2)
        self.assertEqual(p_copy, p_copy2)
Exemple #27
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    def test_pickle_DC_pulse(self):
        p = DCPulse('pulse', t_start=1, duration=2, amplitude=5)
        pickle_dump = pickle.dumps(p)

        pickled_pulse = pickle.loads(pickle_dump)
        self.assertEqual(pickled_pulse.name, 'pulse')
        self.assertEqual(pickled_pulse.t_start, 1)
        self.assertEqual(pickled_pulse.duration, 2)
        self.assertEqual(pickled_pulse.t_stop, 3)
        self.assertEqual(pickled_pulse.amplitude, 5)
Exemple #28
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    def test_pulse_full_name(self):
        p = Pulse('pulse1')
        self.assertEqual(p.full_name, 'pulse1')
        p.id = 2
        self.assertEqual(p.full_name, 'pulse1[2]')

        p = DCPulse('pulse2')
        self.assertEqual(p.full_name, 'pulse2')
        p.id = 2
        self.assertEqual(p.full_name, 'pulse2[2]')
Exemple #29
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    def test_remove_pulse_by_name(self):
        # Remove pulses using .remove
        pulse_sequence = PulseSequence()
        pulse = DCPulse(name='dc', amplitude=1.5, duration=10, t_start=0)
        self.assertEqual(pulse.name, 'dc')
        self.assertEqual(pulse.full_name, 'dc')
        added_pulse, = pulse_sequence.add(pulse)
        self.assertEqual(added_pulse.full_name, 'dc')

        pulse_sequence.remove('dc')
        self.assertEqual(len(pulse_sequence.pulses), 0)
Exemple #30
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    def test_non_empty_pulse_sequence_equality(self):
        pulse_sequence = PulseSequence(
            [DCPulse('read', duration=1, amplitude=2)])
        self.assertEqual(pulse_sequence, pulse_sequence)

        pulse_sequence2 = PulseSequence(
            [DCPulse('read', duration=1, amplitude=2)])
        self.assertEqual(pulse_sequence, pulse_sequence2)

        pulse_sequence2['read'].duration = 2
        self.assertNotEqual(pulse_sequence, pulse_sequence2)

        pulse_sequence2['read'].duration = 1
        pulse_sequence2.allow_pulse_overlap = False
        self.assertNotEqual(pulse_sequence, pulse_sequence2)

        pulse_sequence2.allow_pulse_overlap = True
        self.assertEqual(pulse_sequence, pulse_sequence)
        pulse_sequence2.duration = 5
        self.assertNotEqual(pulse_sequence, pulse_sequence2)