100% coverage

Author: jmafoster1

tests/specification_tests/test_metamorphic_relations.py

@@ -10,6 +10,7 @@
     ShouldCause,
     ShouldNotCause,
     generate_metamorphic_relations,
+    generate_metamorphic_relation,
 )
 from causal_testing.data_collection.data_collector import ExperimentalDataCollector
 from causal_testing.specification.variable import Input, Output
@@ -317,6 +318,14 @@ def test_all_metamorphic_relations_implied_by_dag_ignore_cycles(self):
             [],
         )
 
+    def test_generate_metamorphic_relation_(self):
+        dag = CausalDAG(self.dag_dot_path)
+        [metamorphic_relation] = generate_metamorphic_relation(("X1", "Z"), dag)
+        self.assertEqual(
+            metamorphic_relation,
+            ShouldCause("X1", "Z", [], dag),
+        )
+
     def test_equivalent_metamorphic_relations(self):
         dag = CausalDAG(self.dag_dot_path)
         sc_mr_a = ShouldCause("X", "Y", ["A", "B", "C"], dag)