diff --git a/dandi/tests/fixtures.py b/dandi/tests/fixtures.py
index 7f747a9a2..bad37bfe1 100644
--- a/dandi/tests/fixtures.py
+++ b/dandi/tests/fixtures.py
@@ -413,7 +413,6 @@ def zarr_dandiset(new_dandiset: SampleDandiset) -> SampleDandiset:
 
 @pytest.fixture()
 def bids_dandiset(new_dandiset: SampleDandiset, bids_examples: str) -> SampleDandiset:
-
     shutil.copytree(
         os.path.join(bids_examples, "asl003"),
         os.path.join(str(new_dandiset.dspath), "asl003"),
diff --git a/dandi/tests/test_upload.py b/dandi/tests/test_upload.py
index fd0e5bbc9..3bab8ecec 100644
--- a/dandi/tests/test_upload.py
+++ b/dandi/tests/test_upload.py
@@ -181,10 +181,10 @@ def test_upload_sync_folder(
         text_dandiset.dandiset.get_asset_by_path("subdir2/banana.txt")
 
 
-def test_upload_sync_bids(mocker, bids_dandiset):
-    confirm_mock = mocker.patch("click.confirm", return_value=True)
-    bids_dandiset.upload()
-    confirm_mock.assert_called_with("Delete 1 asset on server?")
+def test_upload_bids(mocker: MockerFixture, bids_dandiset: SampleDandiset) -> None:
+    iter_upload_spy = mocker.spy(LocalFileAsset, "iter_upload")
+    bids_dandiset.upload(existing="forced")
+    iter_upload_spy.assert_called()
 
 
 def test_upload_sync_zarr(mocker, zarr_dandiset):