code: def testTutorial2(self):
      with common.CopyFiles(
          [
              os.path.join(
                  "testcases", "data", "WIKI-ORCL-2000-quandl.csv"
              )
          ],
          ".",
      ):
          res = common.run_sample_module("tutorial-2")
          self.assertEqual(
              common.head_file("tutorial-2.output", 15),
              res.get_output_lines(True)[:15],
          )
          self.assertEqual(
              common.tail_file("tutorial-2.output", 3),
              res.get_output_lines(True)[-3:],
          )
          self.assertTrue(res.exit_ok())
  
imports: import os
  import six
  from testcases import common
label_desc: Use image node_id 2 for calling the TutorialsTestCase obj's underlying member method code with example usage: obj.testTutorial2() without return types