Fix missing fixture in tests

tests/test_raster_stats.py

@@ -5,6 +5,7 @@
 import rioxarray  # noqa: F401
 import xarray as xr
 from pandas.testing import assert_frame_equal
+from rasterio.transform import from_bounds
 from shapely.geometry import Polygon
 
 from src.utils.raster_utils import (
@@ -48,6 +49,11 @@ def sample_gdf():
     return gpd.GeoDataFrame({"geometry": [geometry]})
 
 
+@pytest.fixture
+def sample_transform():
+    return from_bounds(0, 0, 3, 3, 3, 3)
+
+
 def test_fast_zonal_stats(sample_raster, sample_admin_raster, dropped_admin_raster):
     stats = ["mean", "max", "min", "median", "sum", "std", "count"]
     result = fast_zonal_stats(sample_raster, sample_admin_raster, stats)