code: def testAuto(self):
      def layout_test(graph, test_with_dims=(2, 3)):
          lo = graph.layout("auto")
          self.assertTrue(isinstance(lo, Layout))
          self.assertEqual(len(lo[0]), 2)
          for dim in test_with_dims:
              lo = graph.layout("auto", dim=dim)
              self.assertTrue(isinstance(lo, Layout))
              self.assertEqual(len(lo[0]), dim)
          return lo
  
      g = Graph.Barabasi(10)
      layout_test(g)
  
      g = Graph.GRG(101, 0.2)
      del g.vs["x"]
      del g.vs["y"]
      layout_test(g)
  
      g = Graph.Full(10) * 2
      layout_test(g)
  
      g["layout"] = "graphopt"
      layout_test(g, test_with_dims=())
  
      g.vs["x"] = list(range(20))
      g.vs["y"] = list(range(20, 40))
      layout_test(g, test_with_dims=())
  
      del g["layout"]
      lo = layout_test(g, test_with_dims=(2,))
      self.assertEqual(
          [tuple(item) for item in lo],
          list(zip(list(range(20)), list(range(20, 40)))),
      )
  
      g.vs["z"] = list(range(40, 60))
      lo = layout_test(g)
      self.assertEqual(
          [tuple(item) for item in lo],
          list(
              zip(
                  list(range(20)),
                  list(range(20, 40)),
                  list(range(40, 60)),
              )
          ),
      )
  
imports: import unittest
  from math import hypot
  from igraph import Graph, Layout, BoundingBox, InternalError
  from igraph import umap_compute_weights
label_desc: Use image node_id 1 for calling the LayoutAlgorithmTests obj's underlying member method code with example usage: obj.testAuto() and returns: lo