fix test_package

tests/test_package.py

@@ -12,13 +12,23 @@ def test_package(unet2d_path: Path):
     from bioimageio.spec import dump_description, load_description
 
     descr = load_description(unet2d_path)
-    rdf = dump_description(descr)
+    rdf1 = dump_description(descr)
     zip = descr.package()
     descr2 = load_description(zip)
     rdf2 = dump_description(descr2)
-    diff = DeepDiff(rdf, rdf2)
+
+    # assert expected differences
+    assert (
+        rdf1["weights"]["pytorch_state_dict"].pop("source")  # type: ignore
+        == "https://zenodo.org/records/3446812/files/unet2d_weights.torch"
+    )
+    assert (
+        rdf2["weights"]["pytorch_state_dict"].pop("source")  # type: ignore
+        == "unet2d_weights.torch"
+    )
+
+    diff = DeepDiff(rdf1, rdf2)
     assert not diff, diff.pretty()
-    assert descr == descr2
 
 
 def test_save_bioimageio_package(unet2d_path: Path):