code: def random_jpath(depth = 3):
      
      chunks = []
      while depth > 0:
          length = random.randint(5, 15)
          ident  = ''.join(random.choice(string.ascii_uppercase + string.ascii_lowercase) for _ in range(length))
          if random.choice((True, False)):
              index  = random.randint(0, 10)
              ident = "{:s}[{:d}]".format(ident, index)
          chunks.append(ident)
          depth -= 1
      return ".".join(chunks)
docs: Generate random JPath with given node depth.