test_util.py 文件源码

def test_walk_ast(self):
    atok = asttokens.ASTTokens(self.source, parse=True)

    def view(node):
      return "%s:%s" % (node.__class__.__name__, atok.get_text(node))

    scan = [view(n) for n in asttokens.util.walk(atok.tree)]
    self.assertEqual(scan, [
      "Module:foo(bar(1 + 2), 'hello' + ', ' + 'world')",
      "Expr:foo(bar(1 + 2), 'hello' + ', ' + 'world')",
      "Call:foo(bar(1 + 2), 'hello' + ', ' + 'world')",
      'Name:foo',
      'Call:bar(1 + 2)',
      'Name:bar',
      'BinOp:1 + 2',
      'Num:1',
      'Num:2',
      "BinOp:'hello' + ', ' + 'world'",
      "BinOp:'hello' + ', '",
      "Str:'hello'",
      "Str:', '",
      "Str:'world'"
    ])