def test_appended_text_contents_arent_lost():
root = Document("<root><a><b><c><d/></c></b></a></root>").root
for node in tuple(root.child_nodes(is_tag_node, recurse=True)):
node.prepend_child("D")
node.add_next("T")
for node in tuple(root.child_nodes(is_text_node, recurse=True)):
node.add_next("Z")
gc.collect()
assert str(
root) == "<root><a>DZ<b>DZ<c>DZ<d>DZ</d>TZ</c>TZ</b>TZ</a>TZ</root>"
def test_first():
assert first([]) is None
assert first([1]) == 1
assert first((1, 2)) == 1
root = Document("<root><a/><a/><b/></root>").root
assert first(root.child_nodes(is_tag_node, lambda x: x.local_name == "c")) is None
assert (
first(root.child_nodes(is_tag_node, lambda x: x.local_name == "b")) is root[2]
)
assert (
first(root.child_nodes(is_tag_node, lambda x: x.local_name == "a")) is root[0]
)
with pytest.raises(TypeError):
first({})
def test_iter_next_node_over_long_stream(files_path):
root = Document(files_path / "marx_manifestws_1848.TEI-P5.xml").root
node = root.next_node_in_stream(lambda _: False)
assert node is None
all_node_locations = set()
for node in root.child_nodes(is_tag_node, recurse=True):
all_node_locations.add(node.location_path)
encountered_location_paths = set()
for node in root.iterate_next_nodes_in_stream(is_tag_node):
location_path = node.location_path
assert location_path not in encountered_location_paths
encountered_location_paths.add(location_path)
assert encountered_location_paths == all_node_locations
expected_text = root.full_text # operates in tree dimension
collected_text = ""
for node in root.iterate_next_nodes_in_stream(is_text_node):
collected_text += node.content
assert collected_text == expected_text
