code: def test_one_word():
      """
      Check that one node trees are correctly read
  
      probably not super relevant for the parsing use case
      """
      text = "(FOO) (BAR)"
      trees = tree_reader.read_trees(text)
      assert len(trees) == 2
  
      assert trees[0].is_leaf()
      assert trees[0].label == "FOO"
  
      assert trees[1].is_leaf()
      assert trees[1].label == "BAR"
  
file_path: stanza/stanza/tests/constituency/test_tree_reader.py
imports: import pytest
  from stanza.models.constituency import tree_reader
  from stanza.models.constituency.tree_reader import MixedTreeError, UnclosedTreeError, UnlabeledTreeError
  from stanza.tests import *
label_desc: Use image node_id 5 for calling a global function with example usage: test_one_word() without return types