Test reader with path and paths

tests/conftest.py

@@ -15,16 +15,27 @@ def test_objects():
     return [create_test_object(id=i)[0] for i in range(10)]
 
 
-@pytest.fixture
-def hdf5_file_path(tmp_path, test_objects) -> Path:
+def write_h5_file(file_path: Path, test_objects) -> Path:
+    """
+    Write a h5 file with test objects and return path.
+    """
+    with btrack.dataio.HDF5FileHandler(file_path, "w") as h:
+        h.write_objects(test_objects)
+
+    return file_path
+
+
+@pytest.fixture(params=["single", "list"])
+def hdf5_file_path(tmp_path, test_objects, request) -> Path:
     """
     Create and save a btrack HDF5 file, and return the path.
 
     Note that this only saves segmentation results, not tracking results.
     """
-    fn = Path(tmp_path) / "test.h5"
-
-    with btrack.dataio.HDF5FileHandler(fn, "w") as h:
-        h.write_objects(test_objects)
-
-    return fn
+    if request.param == "single":
+        return write_h5_file(tmp_path / "test.h5", test_objects)
+    elif request.param == "list":
+        return [
+            write_h5_file(tmp_path / "test1.h5", test_objects),
+            write_h5_file(tmp_path / "test2.h5", test_objects),
+        ]