code: def test_random_cases(self):
      # Randomly built test cases
      self.optimize_compare("aab,fa,df,ecc->bde")
      self.optimize_compare("ecb,fef,bad,ed->ac")
      self.optimize_compare("bcf,bbb,fbf,fc->")
      self.optimize_compare("bb,ff,be->e")
      self.optimize_compare("bcb,bb,fc,fff->")
      self.optimize_compare("fbb,dfd,fc,fc->")
      self.optimize_compare("afd,ba,cc,dc->bf")
      self.optimize_compare("adb,bc,fa,cfc->d")
      self.optimize_compare("bbd,bda,fc,db->acf")
      self.optimize_compare("dba,ead,cad->bce")
      self.optimize_compare("aef,fbc,dca->bde")
  
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 40 for calling the TestEinsum obj's underlying member method code with example usage: obj.test_random_cases() without return types