Merge pull request #375 from ChristopherBradley/368

deserialise_annotations handles nested annotations

src/cogent3/util/deserialise.py

@@ -86,10 +86,13 @@ def deserialise_annotation(data, parent):
     annots = []
     for element in data:
         element.pop("version", None)
+        annotations = element.pop("annotations", None)
         klass = _get_class(element.pop("type"))
         kwargs = element.pop("annotation_construction")
         kwargs["map"] = deserialise_map_spans(kwargs["map"])
         instance = klass(parent, **kwargs)
+        if annotations:
+            deserialise_annotation(annotations, instance)
         annots.append(instance)
     parent.annotations += tuple(annots)
 

tests/test_core/test_features.py

@@ -636,6 +636,16 @@ def test_nested_to_rich_dict(self):
             self.nested_feature.to_rich_dict(),
         )
 
+    def test_nested_deserialise_annotation(self):
+        """nested annotations can be deserialised"""
+        got = self.s.to_json()
+        new = deserialise_object(got)
+        new_exon1 = new.annotations[0]
+        new_nested_feature = new_exon1.annotations[0]
+        self.assertEqual(
+            new_nested_feature.to_rich_dict(), self.nested_feature.to_rich_dict()
+        )
+
 
 if __name__ == "__main__":
     main()