docstr: Test if CrossCorrelation algorithm gives same results as expected.
docstr_tok: ["Test","if","CrossCorrelation","algorithm","gives","same","results","as","expected","."]
code: def test_cross_correlation(self):
      """
      Test if CrossCorrelation algorithm gives same results as expected.
      """
      self.assertEqual(
          self.correlator1.get_correlation_result().coefficient,
          self.correlator2.get_correlation_result().coefficient,
      )
      self.assertEqual(
          self.correlator1.get_correlation_result().shift,
          self.correlator2.get_correlation_result().shift,
      )
  
imports: import os
  import sys
  import unittest
  from luminol import exceptions
  from luminol import Luminol
  from luminol.correlator import Correlator
label_desc: Use image node_id 3 for calling the TestCorrelator obj's underlying member method code with example usage: obj.test_cross_correlation() without return types