def test_deleting_child():
"""Test deleting a child.
"""
root = RootTask()
task1 = ComplexTask(name='task1', database_entries={'val1': 2.0})
task2 = SimpleTask(name='task2',
database_entries={'val2': 1},
access_exs={'val2': 2})
task3 = ComplexTask(name='task3')
task4 = ComplexTask(name='task4')
task1.add_child_task(0, task2)
task1.add_child_task(1, task4)
root.add_child_task(0, task1)
root.add_child_task(1, task3)
listener = SignalListener()
task1.observe('children_changed', listener.listen)
task1.remove_child_task(0)
assert listener.counter == 1
assert listener.signals[0].removed
assert task1.preferences['children_0']['name'] == 'task4'
assert 'task2_val2' not in task3.list_accessible_database_entries()
root.remove_child_task(0)
assert len(root.children) == 1
with pytest.raises(KeyError):
root.get_from_database('task1_val1')
def test_moving_through_remove_add_child():
"""Test moving a child between different tasks through remove/add.
"""
root = RootTask()
task1 = ComplexTask(name='task1',
database_entries={'val1': 2.0})
task2 = ComplexTask(name='task2',
database_entries={'val2': 2.0})
task3 = SimpleTask(name='task3',
database_entries={'val3': 1},
access_exs={'val3': 2})
task2.add_child_task(0, task3)
task1.add_child_task(1, task2)
root.add_child_task(0, task1)
task1.remove_child_task(0)
assert task2.parent is None
assert task2.root is None
assert task2.database is None
assert task3.parent is not None
assert task3.root is None
assert task3.database is None
root.add_child_task(0, task2)
assert len(root.children) == 2
def test_moving_through_remove_add_child():
"""Test moving a child between different tasks through remove/add.
"""
root = RootTask()
task1 = ComplexTask(name='task1', database_entries={'val1': 2.0})
task2 = ComplexTask(name='task2', database_entries={'val2': 2.0})
task3 = SimpleTask(name='task3',
database_entries={'val3': 1},
access_exs={'val3': 2})
task2.add_child_task(0, task3)
task1.add_child_task(1, task2)
root.add_child_task(0, task1)
task1.remove_child_task(0)
assert task2.parent is None
assert task2.root is None
assert task2.database is None
assert task3.parent is not None
assert task3.root is None
assert task3.database is None
root.add_child_task(0, task2)
assert len(root.children) == 2
def test_deleting_child():
"""Test deleting a child.
"""
root = RootTask()
task1 = ComplexTask(name='task1',
database_entries={'val1': 2.0})
task2 = SimpleTask(name='task2',
database_entries={'val2': 1},
access_exs={'val2': 2})
task3 = ComplexTask(name='task3')
task4 = ComplexTask(name='task4')
task1.add_child_task(0, task2)
task1.add_child_task(1, task4)
root.add_child_task(0, task1)
root.add_child_task(1, task3)
listener = SignalListener()
task1.observe('children_changed', listener.listen)
task1.remove_child_task(0)
assert task2.parent is None
assert task2.root is None
assert task2.database is None
assert listener.counter == 1
assert listener.signals[0].removed
assert task1.preferences['children_0']['name'] == 'task4'
assert 'task2_val2' not in task3.list_accessible_database_entries()
root.remove_child_task(0)
assert task1.parent is None
assert task1.root is None
assert task1.database is None
assert task4.root is None
assert task4.database is None
assert len(root.children) == 1
with pytest.raises(KeyError):
root.get_from_database('task1_val1')