Revert "Removed the getters from test_causal_test_case.py"

Author: f-allian

tests/testing_tests/test_causal_test_case.py

@@ -37,6 +37,17 @@ def setUp(self) -> None:
             treatment_value=1,
         )
 
+    def test_get_treatment_variable(self):
+        self.assertEqual(self.causal_test_case.get_treatment_variable(), "A")
+
+    def test_get_outcome_variable(self):
+        self.assertEqual(self.causal_test_case.get_outcome_variable(), "C")
+
+    def test_get_treatment_value(self):
+        self.assertEqual(self.causal_test_case.get_treatment_value(), 1)
+
+    def test_get_control_value(self):
+        self.assertEqual(self.causal_test_case.get_control_value(), 0)
 
     def test_str(self):
         self.assertEqual(