def test_get_accessible_vars():
"""Test getting the accessible vars of a sequence.
"""
root = RootSequence(external_vars=OrderedDict({'a': 1}),
local_vars=OrderedDict({'a2': '5'}),
time_constrained=True)
context = TestContext()
root.context = context
sequence1 = BaseSequence(local_vars=OrderedDict({'b': '1'}))
sequence2 = BaseSequence(local_vars=OrderedDict({'c': '2'}))
pulse = Pulse()
sequence2.add_child_item(0, pulse)
sequence1.add_child_item(0, sequence2)
root.add_child_item(0, sequence1)
variables = [
'sequence_end', 'a', 'a2', '3_start', '3_stop', '3_duration', 'b', 'c'
]
lv = sequence2.get_accessible_vars()
for v in variables:
assert v in lv
variables.pop()
lv = sequence1.get_accessible_vars()
for v in variables:
assert v in lv
variables.pop()
lv = root.get_accessible_vars()
for v in variables:
assert v in lv
def test_build_from_config2(template_sequence, template_dependencies):
""" Test rebuilding a sequence including a template sequence.
Channel mapping of template_vars values are known.
"""
conf = {'template_id': 'test', 'name': 'Template',
'template_vars': "{'b': '25'}"}
seq = TemplateSequence.build_from_config(conf, template_dependencies)
seq.context.channel_mapping = {'A': 'Ch1_L', 'B': 'Ch2_L',
'Ch1': 'Ch2_A', 'Ch2': 'Ch1_A'}
root = RootSequence()
context = TestContext(sampling=0.5)
root.context = context
root.add_child_item(0, seq)
pref = root.preferences_from_members()
new = RootSequence.build_from_config(pref, template_dependencies)
assert new.items[0].index == 1
seq = new.items[0]
assert seq.name == 'Template'
assert seq.template_id == template_sequence
assert seq.template_vars == dict(b='25')
assert seq.local_vars == dict(a='1.5')
assert len(seq.items) == 4
assert seq.items[3].index == 5
assert seq.docs == 'Basic user comment\nff'
context = seq.context
assert context.template is seq
assert context.logical_channels == ['A', 'B']
assert context.analogical_channels == ['Ch1', 'Ch2']
assert context.channel_mapping == {'A': 'Ch1_L', 'B': 'Ch2_L',
'Ch1': 'Ch2_A', 'Ch2': 'Ch1_A'}
def test_get_accessible_vars():
"""Test getting the accessible vars of a sequence.
"""
root = RootSequence(external_vars={'a': 1}, local_vars={'a2': '5'},
time_constrained=True)
context = TestContext()
root.context = context
sequence1 = BaseSequence(local_vars={'b': '1'})
sequence2 = BaseSequence(local_vars={'c': '2'})
pulse = Pulse()
sequence2.add_child_item(0, pulse)
sequence1.add_child_item(0, sequence2)
root.add_child_item(0, sequence1)
variables = ['sequence_end', 'a', 'a2', '3_start', '3_stop',
'3_duration', 'b', 'c']
lv = sequence2.get_accessible_vars()
for v in variables:
assert v in lv
variables.pop()
lv = sequence1.get_accessible_vars()
for v in variables:
assert v in lv
variables.pop()
lv = root.get_accessible_vars()
for v in variables:
assert v in lv
def template_sequence(pulses_plugin):
"""Create a template sequence and make sure the plugin pick it up.
"""
from ecpy_pulses.pulses.pulse import Pulse
from ecpy_pulses.pulses.sequences.base_sequences import (RootSequence,
BaseSequence)
from ecpy_pulses.pulses.shapes.square_shape import SquareShape
from ecpy_pulses.pulses.contexts.template_context import TemplateContext
root = RootSequence()
context = TemplateContext(logical_channels=['A', 'B'],
analogical_channels=['Ch1', 'Ch2'],
channel_mapping={
'A': '',
'B': '',
'Ch1': '',
'Ch2': ''
})
root.context = context
root.local_vars = OrderedDict({'a': '1.5'})
pulse1 = Pulse(channel='A', def_1='1.0', def_2='{a}')
pulse2 = Pulse(channel='B', def_1='{a} + 1.0', def_2='3.0')
pulse3 = Pulse(channel='Ch1',
def_1='{2_stop} + 0.5',
def_2='{b}',
kind='Analogical',
shape=SquareShape())
seq = BaseSequence()
seq.add_child_item(
0,
Pulse(channel='Ch2',
def_1='{2_stop} + 0.5',
def_2='{sequence_end}',
kind='Analogical',
shape=SquareShape()))
for i in [pulse1, pulse2, seq, pulse3][::-1]:
root.add_child_item(0, i)
pref = root.preferences_from_members()
pref['template_vars'] = repr(dict(b=''))
del pref['item_id']
del pref['external_vars']
del pref['time_constrained']
temp_path = os.path.join(pulses_plugin.templates_folders[0],
'__dummy__.temp_pulse.ini')
save_sequence_prefs(temp_path, pref, 'dummy doc')
pulses_plugin._refresh_known_template_sequences()
return '__dummy__'
def test_build_from_config2(template_sequence, template_dependencies):
""" Test rebuilding a sequence including a template sequence.
Channel mapping of template_vars values are known.
"""
conf = {
'template_id': 'test',
'name': 'Template',
'template_vars': "{'b': '25'}"
}
seq = TemplateSequence.build_from_config(conf, template_dependencies)
seq.context.channel_mapping = {
'A': 'Ch1_L',
'B': 'Ch2_L',
'Ch1': 'Ch2_A',
'Ch2': 'Ch1_A'
}
root = RootSequence()
context = TestContext(sampling=0.5)
root.context = context
root.add_child_item(0, seq)
pref = root.preferences_from_members()
new = RootSequence.build_from_config(pref, template_dependencies)
assert new.items[0].index == 1
seq = new.items[0]
assert seq.name == 'Template'
assert seq.template_id == template_sequence
assert seq.template_vars == dict(b='25')
assert seq.local_vars == dict(a='1.5')
assert len(seq.items) == 4
assert seq.items[3].index == 5
assert seq.docs == 'Basic user comment\nff'
context = seq.context
assert context.template is seq
assert context.logical_channels == ['A', 'B']
assert context.analogical_channels == ['Ch1', 'Ch2']
assert context.channel_mapping == {
'A': 'Ch1_L',
'B': 'Ch2_L',
'Ch1': 'Ch2_A',
'Ch2': 'Ch1_A'
}
def root_with_template(template_sequence, template_dependencies):
"""Build a root using the template sequence.
"""
root = RootSequence()
root.context = TestContext(sampling=0.5)
conf = {'template_id': template_sequence, 'name': 'Template',
'template_vars': "{'b': '19'}"}
seq = TemplateSequence.build_from_config(conf, template_dependencies)
seq.context.channel_mapping = {'A': 'Ch1_L', 'B': 'Ch2_L',
'Ch1': 'Ch2_A', 'Ch2': 'Ch1_A'}
seq.def_1 = '1.0'
seq.def_2 = '20.0'
root.add_child_item(0, seq)
return root
def sequence():
"""Create a sequence.
"""
root = RootSequence()
context = TestContext(sampling=0.5)
root.context = context
root.external_vars = {"a": 1.5}
root.local_vars = {"b": "2*{a}"}
pulse1 = Pulse(def_1="1.0", def_2="{a}")
pulse2 = Pulse(def_1="{a} + 1.0", def_2="3.0")
pulse3 = Pulse(def_1="{2_stop} + 0.5", def_2="10 + {b}")
for i, c in enumerate((pulse1, pulse2, pulse3)):
root.add_child_item(i, c)
return root
def sequence():
"""Create a sequence.
"""
root = RootSequence()
context = TestContext(sampling=0.5)
root.context = context
root.external_vars = OrderedDict({'a': None})
root.local_vars = OrderedDict({'b': '2*{a}'})
pulse1 = Pulse(def_1='1.0', def_2='{a}', def_mode=str('Start/Stop'))
pulse2 = Pulse(def_1='{a} + 1.0', def_2='3.0')
pulse3 = Pulse(def_1='{2_stop} + 0.5', def_2='10 + {b}')
for i, c in enumerate((pulse1, pulse2, pulse3)):
root.add_child_item(i, c)
return root
def test_root_handling():
"""Test updating of item when a sequence get/lose the root.
"""
root = RootSequence()
context = TestContext()
root.context = context
sequence1 = BaseSequence()
sequence2 = BaseSequence()
pulse = Pulse()
sequence2.add_child_item(0, pulse)
sequence1.add_child_item(0, sequence2)
root.add_child_item(0, sequence1)
assert pulse.root is root and sequence2.root is root
assert sequence2.has_observers('_last_index')
root.remove_child_item(0)
assert pulse.root is None and sequence2.root is None
assert not sequence2.has_observers('_last_index')
def test_root_handling():
"""Test updating of item when a sequence get/lose the root.
"""
root = RootSequence()
context = TestContext()
root.context = context
sequence1 = BaseSequence()
sequence2 = BaseSequence()
pulse = Pulse()
sequence2.add_child_item(0, pulse)
sequence1.add_child_item(0, sequence2)
root.add_child_item(0, sequence1)
assert pulse.root is root and sequence2.root is root
assert sequence2.has_observers('_last_index')
root.remove_child_item(0)
assert pulse.root is None and sequence2.root is None
assert not sequence2.has_observers('_last_index')
def template_sequence(pulses_plugin):
"""Create a template sequence and make sure the plugin pick it up.
"""
from ecpy_pulses.pulses.pulse import Pulse
from ecpy_pulses.pulses.sequences.base_sequences import RootSequence, BaseSequence
from ecpy_pulses.pulses.shapes.square_shape import SquareShape
from ecpy_pulses.pulses.contexts.template_context import TemplateContext
root = RootSequence()
context = TemplateContext(
logical_channels=["A", "B"],
analogical_channels=["Ch1", "Ch2"],
channel_mapping={"A": "", "B": "", "Ch1": "", "Ch2": ""},
)
root.context = context
root.local_vars = {"a": "1.5"}
pulse1 = Pulse(channel="A", def_1="1.0", def_2="{a}")
pulse2 = Pulse(channel="B", def_1="{a} + 1.0", def_2="3.0")
pulse3 = Pulse(channel="Ch1", def_1="{2_stop} + 0.5", def_2="{b}", kind="Analogical", shape=SquareShape())
seq = BaseSequence()
seq.add_child_item(
0, Pulse(channel="Ch2", def_1="{2_stop} + 0.5", def_2="{sequence_end}", kind="Analogical", shape=SquareShape())
)
for i in [pulse1, pulse2, seq, pulse3][::-1]:
root.add_child_item(0, i)
pref = root.preferences_from_members()
pref["template_vars"] = repr(dict(b=""))
del pref["item_id"]
del pref["external_vars"]
del pref["time_constrained"]
temp_path = os.path.join(pulses_plugin.templates_folders[0], "__dummy__.temp_pulse.ini")
save_sequence_prefs(temp_path, pref, "dummy doc")
pulses_plugin._refresh_known_template_sequences()
return "__dummy__"
def test_sequence_time_constaints_observation():
"""Test observation of time constraint by the root.
"""
root = RootSequence()
context = TestContext()
root.context = context
sequence = BaseSequence()
root.add_child_item(0, sequence)
assert root.global_vars == []
sequence.time_constrained = True
assert (sorted(root.global_vars) ==
sorted(['1_start', '1_stop', '1_duration']))
sequence.time_constrained = False
assert root.global_vars == []
root.time_constrained = True
assert root.linkable_vars
def test_sequence_time_constaints_observation():
"""Test observation of time constraint by the root.
"""
root = RootSequence()
context = TestContext()
root.context = context
sequence = BaseSequence()
root.add_child_item(0, sequence)
assert root.global_vars == []
sequence.time_constrained = True
assert (sorted(root.global_vars) == sorted(
['1_start', '1_stop', '1_duration']))
sequence.time_constrained = False
assert root.global_vars == []
root.time_constrained = True
assert root.linkable_vars
def root_with_template(template_sequence, template_dependencies):
"""Build a root using the template sequence.
"""
root = RootSequence()
root.context = TestContext(sampling=0.5)
conf = {
'template_id': template_sequence,
'name': 'Template',
'template_vars': "{'b': '19'}"
}
seq = TemplateSequence.build_from_config(conf, template_dependencies)
seq.context.channel_mapping = {
'A': 'Ch1_L',
'B': 'Ch2_L',
'Ch1': 'Ch2_A',
'Ch2': 'Ch1_A'
}
seq.def_1 = '1.0'
seq.def_2 = '20.0'
root.add_child_item(0, seq)
return root
def test_collect_dependencies(workbench):
"""Test collecting build dependencies.
"""
from ecpy_pulses.pulses.sequences.base_sequences import RootSequence
root = RootSequence(context=TestContext())
pulse1 = Pulse(def_1='1.0', def_2='{7_start} - 1.0')
pulse2 = Pulse(def_1='{a} + 1.0', def_2='{6_start} + 1.0')
pulse3 = Pulse(def_1='{3_stop} + 0.5', def_2='10.0')
pulse4 = Pulse(def_1='2.0', def_2='0.5', def_mode='Start/Duration')
pulse5 = Pulse(def_1='{1_stop}', def_2='0.5', def_mode='Start/Duration')
pulse5.shape = SquareShape(amplitude='0.5')
pulse5.kind = 'Analogical'
pulse5.modulation.frequency = '1.0**'
pulse5.modulation.phase = '1.0'
pulse5.modulation.activated = True
sequence2 = BaseSequence()
sequence2.add_child_item(0, pulse3)
sequence1 = BaseSequence()
sequence1.add_child_item(0, pulse2)
sequence1.add_child_item(1, sequence2)
sequence1.add_child_item(2, pulse4)
root.add_child_item(0, pulse1)
root.add_child_item(1, sequence1)
root.add_child_item(2, pulse5)
core = workbench.get_plugin(u'enaml.workbench.core')
com = 'ecpy.app.dependencies.analyse'
dep = core.invoke_command(com, {'obj': root, 'dependencies': 'build'})
assert not dep.errors
com = 'ecpy.app.dependencies.collect'
dep = core.invoke_command(com, {
'kind': 'build',
'dependencies': dep.dependencies
})
assert not dep.errors
assert 'ecpy.pulses.item' in dep.dependencies
assert 'ecpy.pulses.context' in dep.dependencies
assert 'ecpy.pulses.shape' in dep.dependencies
assert 'ecpy.pulses.modulation' in dep.dependencies
def test_collect_dependencies(workbench):
"""Test collecting build dependencies.
"""
from ecpy_pulses.pulses.sequences.base_sequences import RootSequence
root = RootSequence(context=TestContext())
pulse1 = Pulse(def_1='1.0', def_2='{7_start} - 1.0')
pulse2 = Pulse(def_1='{a} + 1.0', def_2='{6_start} + 1.0')
pulse3 = Pulse(def_1='{3_stop} + 0.5', def_2='10.0')
pulse4 = Pulse(def_1='2.0', def_2='0.5', def_mode='Start/Duration')
pulse5 = Pulse(def_1='{1_stop}', def_2='0.5',
def_mode='Start/Duration')
pulse5.shape = SquareShape(amplitude='0.5')
pulse5.kind = 'Analogical'
pulse5.modulation.frequency = '1.0**'
pulse5.modulation.phase = '1.0'
pulse5.modulation.activated = True
sequence2 = BaseSequence()
sequence2.add_child_item(0, pulse3)
sequence1 = BaseSequence()
sequence1.add_child_item(0, pulse2)
sequence1.add_child_item(1, sequence2)
sequence1.add_child_item(2, pulse4)
root.add_child_item(0, pulse1)
root.add_child_item(1, sequence1)
root.add_child_item(2, pulse5)
core = workbench.get_plugin(u'enaml.workbench.core')
com = 'ecpy.app.dependencies.analyse'
dep = core.invoke_command(com, {'obj': root, 'dependencies': 'build'})
assert not dep.errors
com = 'ecpy.app.dependencies.collect'
dep = core.invoke_command(com, {'kind': 'build',
'dependencies': dep.dependencies})
assert not dep.errors
assert 'ecpy.pulses.items' in dep.dependencies
assert 'ecpy.pulses.contexts' in dep.dependencies
assert 'ecpy.pulses.shapes' in dep.dependencies
assert 'ecpy.pulses.modulation' in dep.dependencies
def test_sequence_indexing2():
"""Test adding, moving, deleting a sequence in a sequence.
"""
root = RootSequence()
context = TestContext()
root.context = context
pulse1 = Pulse()
pulse2 = Pulse()
pulse3 = Pulse()
pulse4 = Pulse()
sequence1 = BaseSequence()
sequence2 = BaseSequence()
root.add_child_item(0, pulse1)
root.add_child_item(1, sequence1)
root.add_child_item(2, pulse2)
assert sequence1.parent is root
assert sequence1.root is root
sequence1.add_child_item(0, sequence2)
assert sequence2.parent is sequence1
assert sequence2.root is root
assert pulse1.index == 1
assert pulse2.index == 4
assert (sorted(root.get_accessible_vars()) ==
sorted(['1_start', '1_stop', '1_duration',
'4_start', '4_stop', '4_duration']))
pulse1.index = 200
sequence2.add_child_item(0, pulse3)
assert pulse3.parent is sequence2
assert pulse3.root is root
assert pulse2.index == 5
assert pulse3.index == 4
assert (sorted(root.get_accessible_vars()) ==
sorted(['1_start', '1_stop', '1_duration',
'4_start', '4_stop', '4_duration',
'5_start', '5_stop', '5_duration']))
# Check that only the pulse below the modified sequence are updated.
assert pulse1.index == 200
pulse1.index = 0
sequence1.add_child_item(0, pulse4)
assert pulse4.index == 3
assert sequence2.index == 4
assert pulse3.index == 5
assert pulse2.index == 6
assert (sorted(root.get_accessible_vars()) ==
sorted(['1_start', '1_stop', '1_duration',
'3_start', '3_stop', '3_duration',
'5_start', '5_stop', '5_duration',
'6_start', '6_stop', '6_duration']))
sequence1.remove_child_item(1)
assert sequence2.parent is None
assert sequence2.index == 0
assert pulse2.index == 4
assert (sorted(root.get_accessible_vars()) ==
sorted(['1_start', '1_stop', '1_duration',
'3_start', '3_stop', '3_duration',
'4_start', '4_stop', '4_duration']))
sequence1.index = 200
root2 = RootSequence()
sequence2.root = root2
while True:
sequence2.remove_child_item(0)
if not sequence2.items:
break
# Check the observer was properly removed
assert sequence1.index == 200
def test_sequence_indexing1():
"""Test adding, moving, deleting pulse in a sequence.
"""
root = RootSequence()
root.time_constrained = True
root.sequence_duration = '1.0'
context = TestContext()
root.context = context
pulse1 = Pulse()
pulse2 = Pulse()
pulse3 = Pulse()
root.add_child_item(0, pulse1)
assert pulse1.index == 1
assert pulse1.root is root
assert (sorted(root.get_accessible_vars()) ==
(sorted(['sequence_end', '1_start', '1_stop', '1_duration'])))
root.add_child_item(1, pulse2)
assert pulse1.index == 1
assert pulse2.index == 2
assert pulse2.root is root
assert (sorted(root.get_accessible_vars()) ==
sorted(['sequence_end', '1_start', '1_stop', '1_duration',
'2_start', '2_stop', '2_duration']))
root.move_child_item(0, 1)
assert pulse1.index == 2
assert pulse2.index == 1
assert (sorted(root.get_accessible_vars()) ==
sorted(['sequence_end', '1_start', '1_stop', '1_duration',
'2_start', '2_stop', '2_duration']))
root.move_child_item(0, 1)
root.add_child_item(2, pulse3)
assert pulse1.index == 1
assert pulse2.index == 2
assert pulse3.index == 3
assert pulse3.root is root
assert (sorted(root.get_accessible_vars()) ==
sorted(['sequence_end', '1_start', '1_stop', '1_duration',
'2_start', '2_stop', '2_duration',
'3_start', '3_stop', '3_duration']))
root.time_constrained = False
root.remove_child_item(1)
assert pulse1.index == 1
assert pulse2.index == 0
assert pulse3.index == 2
assert pulse2.root is None
assert (sorted(root.get_accessible_vars()) ==
sorted(['1_start', '1_stop', '1_duration',
'2_start', '2_stop', '2_duration']))
root.add_child_item(1, pulse2)
assert pulse1.index == 1
assert pulse2.index == 2
assert pulse3.index == 3
assert pulse2.root is root
assert (sorted(root.get_accessible_vars()) ==
sorted(['1_start', '1_stop', '1_duration',
'2_start', '2_stop', '2_duration',
'3_start', '3_stop', '3_duration']))
def test_sequence_indexing2():
"""Test adding, moving, deleting a sequence in a sequence.
"""
root = RootSequence()
context = TestContext()
root.context = context
pulse1 = Pulse()
pulse2 = Pulse()
pulse3 = Pulse()
pulse4 = Pulse()
sequence1 = BaseSequence()
sequence2 = BaseSequence()
root.add_child_item(0, pulse1)
root.add_child_item(1, sequence1)
root.add_child_item(2, pulse2)
assert sequence1.parent is root
assert sequence1.root is root
sequence1.add_child_item(0, sequence2)
assert sequence2.parent is sequence1
assert sequence2.root is root
assert pulse1.index == 1
assert pulse2.index == 4
assert (sorted(root.get_accessible_vars()) == sorted(
['1_start', '1_stop', '1_duration', '4_start', '4_stop',
'4_duration']))
pulse1.index = 200
sequence2.add_child_item(0, pulse3)
assert pulse3.parent is sequence2
assert pulse3.root is root
assert pulse2.index == 5
assert pulse3.index == 4
assert (sorted(root.get_accessible_vars()) == sorted([
'1_start', '1_stop', '1_duration', '4_start', '4_stop', '4_duration',
'5_start', '5_stop', '5_duration'
]))
# Check that only the pulse below the modified sequence are updated.
assert pulse1.index == 200
pulse1.index = 0
sequence1.add_child_item(0, pulse4)
assert pulse4.index == 3
assert sequence2.index == 4
assert pulse3.index == 5
assert pulse2.index == 6
assert (sorted(root.get_accessible_vars()) == sorted([
'1_start', '1_stop', '1_duration', '3_start', '3_stop', '3_duration',
'5_start', '5_stop', '5_duration', '6_start', '6_stop', '6_duration'
]))
sequence1.remove_child_item(1)
assert sequence2.parent is None
assert sequence2.index == 0
assert pulse2.index == 4
assert (sorted(root.get_accessible_vars()) == sorted([
'1_start', '1_stop', '1_duration', '3_start', '3_stop', '3_duration',
'4_start', '4_stop', '4_duration'
]))
sequence1.index = 200
root2 = RootSequence()
sequence2.root = root2
while True:
sequence2.remove_child_item(0)
if not sequence2.items:
break
# Check the observer was properly removed
assert sequence1.index == 200
def test_sequence_indexing1():
"""Test adding, moving, deleting pulse in a sequence.
"""
root = RootSequence()
root.time_constrained = True
root.sequence_duration = '1.0'
context = TestContext()
root.context = context
pulse1 = Pulse()
pulse2 = Pulse()
pulse3 = Pulse()
root.add_child_item(0, pulse1)
assert pulse1.index == 1
assert pulse1.root is root
assert (sorted(root.get_accessible_vars()) == (sorted(
['sequence_end', '1_start', '1_stop', '1_duration'])))
root.add_child_item(1, pulse2)
assert pulse1.index == 1
assert pulse2.index == 2
assert pulse2.root is root
assert (sorted(root.get_accessible_vars()) == sorted([
'sequence_end', '1_start', '1_stop', '1_duration', '2_start', '2_stop',
'2_duration'
]))
root.move_child_item(0, 1)
assert pulse1.index == 2
assert pulse2.index == 1
assert (sorted(root.get_accessible_vars()) == sorted([
'sequence_end', '1_start', '1_stop', '1_duration', '2_start', '2_stop',
'2_duration'
]))
root.move_child_item(0, 1)
root.add_child_item(2, pulse3)
assert pulse1.index == 1
assert pulse2.index == 2
assert pulse3.index == 3
assert pulse3.root is root
assert (sorted(root.get_accessible_vars()) == sorted([
'sequence_end', '1_start', '1_stop', '1_duration', '2_start', '2_stop',
'2_duration', '3_start', '3_stop', '3_duration'
]))
root.time_constrained = False
root.remove_child_item(1)
assert pulse1.index == 1
assert pulse2.index == 0
assert pulse3.index == 2
assert pulse2.root is None
assert (sorted(root.get_accessible_vars()) == sorted(
['1_start', '1_stop', '1_duration', '2_start', '2_stop',
'2_duration']))
root.add_child_item(1, pulse2)
assert pulse1.index == 1
assert pulse2.index == 2
assert pulse3.index == 3
assert pulse2.root is root
assert (sorted(root.get_accessible_vars()) == sorted([
'1_start', '1_stop', '1_duration', '2_start', '2_stop', '2_duration',
'3_start', '3_stop', '3_duration'
]))