Fix test error in tests.ngc_bundle_download (#6935)

Fixes #6932.

### Description
Add `remove_ngc_prefix` for ngc source download

### Types of changes
<!--- Put an `x` in all the boxes that apply, and remove the not
applicable items -->
- [x] Non-breaking change (fix or new feature that would not break
existing functionality).
- [ ] Breaking change (fix or new feature that would cause existing
functionality to change).
- [ ] New tests added to cover the changes.
- [ ] Integration tests passed locally by running `./runtests.sh -f -u
--net --coverage`.
- [ ] Quick tests passed locally by running `./runtests.sh --quick
--unittests --disttests`.
- [ ] In-line docstrings updated.
- [ ] Documentation updated, tested `make html` command in the `docs/`
folder.

---------

Signed-off-by: KumoLiu <[email protected]>

monai/bundle/scripts.py

@@ -461,6 +461,10 @@ def load(
         device = "cuda:0" if is_available() else "cpu"
     if model_file is None:
         model_file = os.path.join("models", "model.ts" if load_ts_module is True else "model.pt")
+    if source == "ngc":
+        name = _add_ngc_prefix(name)
+        if remove_prefix:
+            name = _remove_ngc_prefix(name, prefix=remove_prefix)
     full_path = os.path.join(bundle_dir_, name, model_file)
     if not os.path.exists(full_path) or model is None:
         download(

tests/ngc_bundle_download.py

@@ -82,11 +82,15 @@ def test_ngc_download_bundle(self, bundle_name, version, remove_prefix, download
                 self.assertTrue(os.path.exists(full_file_path))
                 self.assertTrue(check_hash(filepath=full_file_path, val=hash_val))
 
-                weights = load(
+                model = load(
                     name=bundle_name, source="ngc", version=version, bundle_dir=tempdir, remove_prefix=remove_prefix
                 )
                 assert_allclose(
-                    weights[TESTCASE_WEIGHTS["key"]], TESTCASE_WEIGHTS["value"], atol=1e-4, rtol=1e-4, type_test=False
+                    model.state_dict()[TESTCASE_WEIGHTS["key"]],
+                    TESTCASE_WEIGHTS["value"],
+                    atol=1e-4,
+                    rtol=1e-4,
+                    type_test=False,
                 )