code: def test_long_paths(self):
      # Long complex cases
  
      # Long test 1
      long_test1 = self.build_operands(
          "acdf,jbje,gihb,hfac,gfac,gifabc,hfac"
      )
      path, path_str = np.einsum_path(*long_test1, optimize="greedy")
      self.assert_path_equal(
          path,
          [
              "einsum_path",
              (3, 6),
              (3, 4),
              (2, 4),
              (2, 3),
              (0, 2),
              (0, 1),
          ],
      )
  
      path, path_str = np.einsum_path(*long_test1, optimize="optimal")
      self.assert_path_equal(
          path,
          [
              "einsum_path",
              (3, 6),
              (3, 4),
              (2, 4),
              (2, 3),
              (0, 2),
              (0, 1),
          ],
      )
  
      # Long test 2
      long_test2 = self.build_operands("chd,bde,agbc,hiad,bdi,cgh,agdb")
      path, path_str = np.einsum_path(*long_test2, optimize="greedy")
      self.assert_path_equal(
          path,
          [
              "einsum_path",
              (3, 4),
              (0, 3),
              (3, 4),
              (1, 3),
              (1, 2),
              (0, 1),
          ],
      )
  
      path, path_str = np.einsum_path(*long_test2, optimize="optimal")
      self.assert_path_equal(
          path,
          [
              "einsum_path",
              (0, 5),
              (1, 4),
              (3, 4),
              (1, 3),
              (1, 2),
              (0, 1),
          ],
      )
  
imports: import itertools
  import sys
  import platform
  import pytest
  import numpy
  from numpy.testing import assert_, assert_equal, assert_array_equal, assert_almost_equal, assert_raises, suppress_warnings, assert_raises_regex, assert_allclose
label_desc: Use image node_id 4 for calling the TestEinsumPath obj's underlying member method code with example usage: obj.test_long_paths() without return types