generate many versions and test they are different

tests/test_absolutize.py

@@ -31,13 +31,24 @@ def test_make_paths_absolute(self, workflow_id):
                 rdflib.Graph().parse(data=json.dumps(json_data), format="json-ld")
             )
 
-            json_data_abs_paths = make_paths_absolute(json_data, BASE_URL, 41, 1)
+            subjects = []
+            for version in [1, 2]:
+                json_data_abs_paths = make_paths_absolute(
+                    json_data, BASE_URL, 41, version
+                )
 
-            parsed_graph = rdflib.Graph().parse(
-                data=json.dumps(json_data_abs_paths), format="json-ld"
-            )
+                parsed_graph = rdflib.Graph().parse(
+                    data=json.dumps(json_data_abs_paths), format="json-ld"
+                )
+
+                assert is_all_absolute(parsed_graph)
+
+                subject = parsed_graph.query(
+                    "SELECT ?s WHERE { ?s a <http://schema.org/CreativeWork>  }"
+                ).bindings[0]["s"]
+                subjects.append(subject)
 
-            assert is_all_absolute(parsed_graph)
+            assert subjects[0] != subjects[1]
 
     def test_merged(self):
         graph = merge_all_files(

workflowhub_graph/absolutize.py

@@ -1,4 +1,5 @@
 import argparse
+import copy
 import json
 from urllib.parse import urlparse
 import arcp
@@ -41,6 +42,8 @@ def make_paths_absolute(
     :raises ValueError: If '@context' key is missing or if '@base' key already exists in the JSON content.
     """
 
+    json_data = copy.deepcopy(json_data)
+
     workflow_url = (
         f"{workflowhub_url}/workflows/{workflow_id}/ro_crate?version={workflow_version}"
     )