diff --git a/tests/data/df_input.zip b/tests/data/df_input.zip
new file mode 100644
index 0000000..47fd79f
Binary files /dev/null and b/tests/data/df_input.zip differ
diff --git a/tests/data/generate_trusted_result.py b/tests/data/generate_trusted_result.py
index 0ac2bf6..898d651 100644
--- a/tests/data/generate_trusted_result.py
+++ b/tests/data/generate_trusted_result.py
@@ -1,23 +1,29 @@
 import glob
 import os
 import tempfile
+import zipfile
 
-import test_df
-import test_lsm
 import zarr
 
+import test_df
+import test_lsm
 from linc_convert.modalities.df import multi_slice
 from linc_convert.modalities.lsm import mosaic
 
 if __name__ == "__main__":
-    with tempfile.TemporaryDirectory() as tmp_dir:
-        test_lsm._write_test_data(tmp_dir)
-        output_zarr = os.path.join(tmp_dir, "output.zarr")
-        mosaic.convert(tmp_dir, output_zarr)
-        zarr.copy_all(zarr.open(output_zarr), zarr.open("data/lsm.zarr.zip", "w"))
+
     with tempfile.TemporaryDirectory() as tmp_dir:
         test_df._write_test_data(tmp_dir)
         output_zarr = os.path.join(tmp_dir, "output.zarr")
         files = glob.glob(os.path.join(tmp_dir, "*.jp2"))
+        with zipfile.ZipFile("data/df_input.zip", "w") as z:
+            for file in files:
+                z.write(file, os.path.basename(file))
         multi_slice.convert(files, output_zarr)
         zarr.copy_all(zarr.open(output_zarr), zarr.open("data/df.zarr.zip", "w"))
+
+    with tempfile.TemporaryDirectory() as tmp_dir:
+        test_lsm._write_test_data(tmp_dir)
+        output_zarr = os.path.join(tmp_dir, "output.zarr")
+        mosaic.convert(tmp_dir, output_zarr)
+        zarr.copy_all(zarr.open(output_zarr), zarr.open("data/lsm.zarr.zip", "w"))
diff --git a/tests/helper.py b/tests/helper.py
index f8d521e..242f3d8 100644
--- a/tests/helper.py
+++ b/tests/helper.py
@@ -1,5 +1,3 @@
-""" """
-
 import numpy as np
 import zarr
 
diff --git a/tests/test_df.py b/tests/test_df.py
index 586f0bd..384b2f4 100644
--- a/tests/test_df.py
+++ b/tests/test_df.py
@@ -1,22 +1,24 @@
-
 import glob
 import os
+import zipfile
 
 import glymur
 import numpy as np
-from helper import _cmp_zarr_archives
 
+from helper import _cmp_zarr_archives
 from linc_convert.modalities.df import multi_slice
 
 
 def _write_test_data(directory: str) -> None:
     for level in range(5):
         image = np.zeros((1024, 768, 3), dtype=np.uint8) + level * 10
-        jp2 = glymur.Jp2k(f"{directory}/{level}.jp2", data=image)
+        glymur.Jp2k(f"{directory}/{level}.jp2", data=image, )
 
 
 def test_df(tmp_path):
-    _write_test_data(tmp_path)
+    # _write_test_data(tmp_path)
+    with zipfile.ZipFile("data/df_input.zip", "r") as z:
+        z.extractall(tmp_path)
     output_zarr = tmp_path / "output.zarr"
     files = glob.glob(os.path.join(tmp_path, "*.jp2"))
     multi_slice.convert(files, str(output_zarr))