Add test to verify bit-identical reproducibility

datalad_ebrains/tests/test_clone.py

@@ -1,8 +1,33 @@
+def test_clone_reproducibility(tmp_path):
+    clone_kwargs = dict(
+        result_xfm='datasets',
+        result_renderer='disabled',
+    )
+    from datalad.api import ebrains_clone
+    # first version only
+    dsv1 = ebrains_clone(
+        'https://search.kg.ebrains.eu/instances/fd303d56-e1aa-46a2-9d0c-7e5215aeb7ca',
+        tmp_path / 'v1',
+        **clone_kwargs
+    )[-1]
+    # up to second version
+    dsv2 = ebrains_clone(
+        'https://search.kg.ebrains.eu/instances/4ac9f0bc-560d-47e0-8916-7b24da9bb0ce',
+        tmp_path / 'v2',
+        **clone_kwargs
+    )[-1]
+    v1_history = list(dsv1.repo.call_git_items_(['log', '--oneline']))
+    v2_history = list(dsv2.repo.call_git_items_(['log', '--oneline']))
+    # the two version histories must be bit-identical, for all shared versions
+    assert v1_history == v2_history[1:]
+
 
 def test_ebrain_clone(tmp_path):
     from datalad.api import ebrains_clone
-
-    # smoke test
+    # smoke test, leave result rendering on to see what happens in the logs
     ebrains_clone(
+        # this will pull 8 version, but is not pointing to a full dataset
+        # (i.e. ALL versions), because of
+        # https://github.com/datalad/datalad-ebrains/issues/47
         'https://kg.ebrains.eu/api/instances/a8932c7e-063c-4131-ab96-996d843998e9',
         tmp_path)