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_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'
]))