TEST(identifiable): Remove unused test case

unittests/test_identifiable_adapters.py

@@ -54,6 +54,8 @@ def mock_retrieve_RecordType(id, name):
         "Lab": db.RecordType(name="Lab"),
         "Analysis": db.RecordType(name="Analysis"),
         "MetaAnalysis": db.RecordType(name="MetaAnalysis").add_parent("Analysis"),
+        # Test that two parents are possible; only one of them
+        # (Experiment) has an identifiable.
         "Measurement": db.RecordType(name="Measurement").add_parent("Experiment").add_parent("A")
     }[name]
 
@@ -330,16 +332,10 @@ def test_get_registered_identifiable():
     with pytest.raises(RuntimeError):
         registered = ident.get_registered_identifiable(rec)
 
-    # Test the case that the record has a parent for which no identifiable is registered
-    # and there is a registered identifiable for a grand parent
-    ident = CaosDBIdentifiableAdapter()
-    ident.load_from_yaml_definition(UNITTESTDIR / "example_identifiables.yml")
-    rec = db.Record().add_parent(name="Measurement")
-    registered = ident.get_registered_identifiable(rec)
-    assert registered is not None
-    assert registered.parents[0].name == "Experiment"
-
-    # Same again, but with two grand parents
+    # Test the case that the record has a parent for which no
+    # identifiable is registered and there is a registered
+    # identifiable for a grand parent. Note that this also tests the
+    # case of two grandparents, only one of which has an identifiable.
     ident = CaosDBIdentifiableAdapter()
     ident.load_from_yaml_definition(UNITTESTDIR / "example_identifiables.yml")
     rec = db.Record().add_parent(name="Measurement")