diff --git a/MANIFEST.in b/MANIFEST.in
index 66cf595..e08df78 100644
--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -9,3 +9,4 @@ recursive-include cellfinder_napari *.png
 recursive-exclude * __pycache__
 recursive-exclude * *.py[co]
 recursive-exclude examples *
+recursive-exclude cellfinder_napari/tests/data *
diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/boundaries.tiff b/cellfinder_napari/tests/data/brainreg-napari-output/boundaries.tiff
new file mode 100644
index 0000000..c286266
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/boundaries.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:5e98f4bbdc240d119b5bb8669a82a0cf6c722eb6d32df98c74c834204985c4fd
+size 1146784
diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/brainreg.json b/cellfinder_napari/tests/data/brainreg-napari-output/brainreg.json
new file mode 100644
index 0000000..d8b9a66
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/brainreg.json
@@ -0,0 +1 @@
+{"image_paths": null, "backend": "niftyreg", "voxel_sizes": ["50.0", "40.0", "40.0"], "orientation": "psl", "data_orientation": "psl", "atlas": "example_mouse_100um", "atlas_key": "atlas_key.example_mouse_100um", "registration_output_folder": "/Users/dstansby/brainreg-napari-output", "affine_n_steps": "6", "affine_use_n_steps": "5", "freeform_n_steps": "6", "freeform_use_n_steps": "4", "bending_energy_weight": "0.95", "grid_spacing": "10", "smoothing_sigma_reference": "1", "smoothing_sigma_floating": "1.0", "histogram_n_bins_floating": "128.0", "histogram_n_bins_reference": "128.0"}
diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/cells.xml b/cellfinder_napari/tests/data/brainreg-napari-output/cells.xml
new file mode 100644
index 0000000..ac9f06f
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/cells.xml
@@ -0,0 +1,427 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<CellCounter_Marker_File>
+  <Image_Properties>
+    <Image_Filename>placeholder.tif</Image_Filename>
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+  </Marker_Data>
+</CellCounter_Marker_File>
diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_0.tiff b/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_0.tiff
new file mode 100644
index 0000000..073e7e3
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_0.tiff
@@ -0,0 +1,3 @@
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diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_1.tiff b/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_1.tiff
new file mode 100644
index 0000000..e90ad00
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_1.tiff
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diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_2.tiff b/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_2.tiff
new file mode 100644
index 0000000..a87ad89
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/deformation_field_2.tiff
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diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/downsampled.tiff b/cellfinder_napari/tests/data/brainreg-napari-output/downsampled.tiff
new file mode 100644
index 0000000..f8a0cfb
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/downsampled.tiff
@@ -0,0 +1,3 @@
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+size 2267820
diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/downsampled_standard.tiff b/cellfinder_napari/tests/data/brainreg-napari-output/downsampled_standard.tiff
new file mode 100644
index 0000000..d750c97
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/downsampled_standard.tiff
@@ -0,0 +1,3 @@
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diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/registered_atlas.tiff b/cellfinder_napari/tests/data/brainreg-napari-output/registered_atlas.tiff
new file mode 100644
index 0000000..923546c
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/registered_atlas.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/registered_hemispheres.tiff b/cellfinder_napari/tests/data/brainreg-napari-output/registered_hemispheres.tiff
new file mode 100644
index 0000000..67c274f
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/registered_hemispheres.tiff
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
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diff --git a/cellfinder_napari/tests/data/brainreg-napari-output/volumes.csv b/cellfinder_napari/tests/data/brainreg-napari-output/volumes.csv
new file mode 100644
index 0000000..9057fb4
--- /dev/null
+++ b/cellfinder_napari/tests/data/brainreg-napari-output/volumes.csv
@@ -0,0 +1,2 @@
+structure_name,left_volume_mm3,right_volume_mm3,total_volume_mm3
+root,1.7870000000000001,2.007,3.7940000000000005
diff --git a/cellfinder_napari/tests/test_transform.py b/cellfinder_napari/tests/test_transform.py
index 7ecc5aa..57cec55 100644
--- a/cellfinder_napari/tests/test_transform.py
+++ b/cellfinder_napari/tests/test_transform.py
@@ -7,8 +7,19 @@
 
 from cellfinder_napari.transform import transform
 
+BRAINREG_OUTPUT_DIRECTORY = (
+    Path(__file__).parent / "data" / "brainreg-napari-output"
+)
+
 
 def test_transform(make_napari_viewer):
+    """
+    Check that transforming cells to a registered brain works.
+
+    Note that the final check for the new coordinates of the cell has not yet
+    been checked for correctness, but is included to catch changes in the cell
+    transformation code in the future.
+    """
     # Create cells
     cells_layer = Points(np.atleast_2d([0, 0, 0]))
 
@@ -19,7 +30,7 @@ def test_transform(make_napari_viewer):
     viewer = make_napari_viewer()
 
     labels_layer, boundaries_layer = add_registered_image_layers(
-        viewer, registration_directory=Path.home() / "brainreg-napari-output"
+        viewer, registration_directory=BRAINREG_OUTPUT_DIRECTORY
     )
     viewer.add_layer(brain_layer)
     viewer.add_layer(cells_layer)