def test_insert_nodes_at_highest_position(cur, root):
highest_position = find_highest_position(cur, root)
node4 = insert_node(cur, root, position=None, auto_position=True)
node5 = insert_node(cur, root, position=-1, auto_position=True)
assert node4.position == highest_position + 1
assert node5.position == highest_position + 2
delete_node(cur, node4)
delete_node(cur, node5)
def test_insert_nodes_at_highest_position(cur, root):
highest_position = find_highest_position(cur, root)
node4 = insert_node(cur, root, position=None, auto_position=True)
node5 = insert_node(cur, root, position=-1, auto_position=True)
assert node4.position == highest_position + 1
assert node5.position == highest_position + 2
delete_node(cur, node4)
delete_node(cur, node5)
def test_delete_node(cur, nd1, nd2_1, nd2_1_1, nd2_leaf):
"""
Tree layout before delete:
/
- nd1
- nd2-1
- nd2-1-1
- nd2-leaf
- nd2
- nd3
Expected tree layout after move:
/
- nd1
- nd2-1
- nd2
- nd3
"""
delete_node(cur, nd2_1_1, auto_position=False)
# Deleted node doesn't exist anymore
with pytest.raises(ValueError):
get_node(cur, nd2_1_1.id)
# nd2-1 has no children and no descendants
assert set(get_child_ids(cur, nd2_1)) == set()
assert set(get_child_ids(cur, nd2_1_1)) == set()
assert set(get_descendant_ids(cur, nd2_1)) == set()
# nd1 just contains nd2-1
assert set(get_child_ids(cur, nd1)) == {nd2_1.id}
assert set(get_descendant_ids(cur, nd1)) == {nd2_1.id}
# Ancestor and descendant sets of nd2-1-1 and nd2-leaf are empty
# (or raise error in the future because they don't exist anymore)
assert set(get_ancestor_ids(cur, nd2_1_1)) == set()
assert set(get_ancestor_ids(cur, nd2_leaf)) == set()
assert set(get_descendant_ids(cur, nd2_1_1)) == set()
assert set(get_descendant_ids(cur, nd2_leaf)) == set()
def test_delete_node(cur, nd1, nd2_1, nd2_1_1, nd2_leaf):
"""
Tree layout before delete:
/
- nd1
- nd2-1
- nd2-1-1
- nd2-leaf
- nd2
- nd3
Expected tree layout after move:
/
- nd1
- nd2-1
- nd2
- nd3
"""
delete_node(cur, nd2_1_1, auto_position=False)
# Deleted node doesn't exist anymore
with pytest.raises(exceptions.NodeNotFound):
get_node(cur, nd2_1_1.id)
# nd2-1 has no children and no descendants
assert set(get_child_ids(cur, nd2_1)) == set()
assert set(get_child_ids(cur, nd2_1_1)) == set()
assert set(get_descendant_ids(cur, nd2_1)) == set()
# nd1 just contains nd2-1
assert set(get_child_ids(cur, nd1)) == {nd2_1.id}
assert set(get_descendant_ids(cur, nd1)) == {nd2_1.id}
# Ancestor and descendant sets of nd2-1-1 and nd2-leaf are empty
# (or raise error in the future because they don't exist anymore)
assert set(get_ancestor_ids(cur, nd2_1_1)) == set()
assert set(get_ancestor_ids(cur, nd2_leaf)) == set()
assert set(get_descendant_ids(cur, nd2_1_1)) == set()
assert set(get_descendant_ids(cur, nd2_leaf)) == set()
def test_delete_node_shifts_positions(cur, root, nd1):
delete_node(cur, nd1, auto_position=True)
positions = map(lambda n: n.position, get_children(cur, root))
assert list(positions) == [0, 1, 3]
def test_delete_node_by_id(cur, nd1, nd2_1):
delete_node(cur, nd2_1.id, auto_position=True)
assert set(get_child_ids(cur, nd1)) == set()
def test_insert_root_node_with_auto_position(cur):
root = insert_node(cur, None, 'folder', auto_position=True)
delete_node(cur, root)
def test_delete_node_by_id(cur, nd1, nd2_1):
delete_node(cur, nd2_1.id, auto_position=True)
assert set(get_child_ids(cur, nd1)) == set()
def test_insert_root_node_with_auto_position(cur):
root = insert_node(cur, None, 'folder', auto_position=True)
delete_node(cur, root)
def test_delete_node_shifts_positions(cur, root, nd1):
delete_node(cur, nd1, auto_position=True)
positions = map(lambda n: n.position, get_children(cur, root))
assert list(positions) == [0, 1, 3]