code: def test_evaluate_EQ_categorical(self):
      mock_feature = Feature("categorical_feature")
      mock_feature.evaluate = MagicMock(return_value="foo")
      assignment = {"categorical_feature": "foo"}
  
      isFoo = predicate.Predicate(
          mock_feature, predicate.Relation.EQ, "foo"
      )
      self.assertTrue(isFoo.evaluate(assignment))
      mock_feature.evaluate.assert_called_with(assignment)
  
      isBar = predicate.Predicate(
          mock_feature, predicate.Relation.EQ, "bar"
      )
      self.assertFalse(isBar.evaluate(assignment))
      mock_feature.evaluate.assert_called_with(assignment)
  
file_path: AIX360/tests/rule_induction/trxf/core/test_predicate.py
imports: from unittest import TestCase
  from unittest.mock import MagicMock
  import aix360.algorithms.rule_induction.trxf.core.predicate
  from aix360.algorithms.rule_induction.trxf.core.feature import Feature
label_desc: Use image node_id 2 for calling the TestPredicate obj's underlying member method code with example usage: obj.test_evaluate_EQ_categorical() without return types