code: def testSampleStrategyAnalyzer(self):
      with common.CopyFiles(
          [
              os.path.join(
                  "testcases", "data", "orcl-2000-yahoofinance.csv"
              )
          ],
          ".",
      ):
          res = common.run_sample_module("sample-strategy-analyzer")
  
          self.assertTrue(res.exit_ok())
          lines = res.get_output_lines()
          self.assertGreaterEqual(len(lines), 20)
          self.assertEqual(
              lines,
              common.head_file(
                  "sample-strategy-analyzer.output", len(lines)
              ),
          )
  
imports: import os
  import six
  from testcases import common
label_desc: Use image node_id 1 for calling the StratAnalyzerTestCase obj's underlying member method code with example usage: obj.testSampleStrategyAnalyzer() without return types