code: def test_str_upper(self):
      self.run_test(
          "def str_upper(s): return s.upper()",
          "ThiS iS a TeST",
          str_upper=[str],
      )
      self.run_test(
          "def str_upper_a(s): return s[0].upper()",
          "ThiS iS a TeST",
          str_upper_a=[str],
      )
  
imports: from pythran.tests import TestEnv
  from pythran.typing import List
  import unittest
label_desc: Use image node_id 19 for calling the TestStr obj's underlying member method code with example usage: obj.test_str_upper() without return types