diff --git a/src/pyrovelocity/tests/test_preprocess.py b/src/pyrovelocity/tests/test_preprocess.py
new file mode 100644
index 000000000..9f706a7aa
--- /dev/null
+++ b/src/pyrovelocity/tests/test_preprocess.py
@@ -0,0 +1,20 @@
+"""Tests for `pyrovelocity.tasks.preprocess` module."""
+
+
+def test_load_preprocess():
+    from pyrovelocity.tasks import preprocess
+
+    print(preprocess.__file__)
+    
+def test_compute_metacells():
+    from pyrovelocity.tasks.preprocess import compute_metacells
+    from pyrovelocity.tests.synthetic_AnnData import synthetic_AnnData
+    import scanpy as sc
+    adata_rna = synthetic_AnnData(seed = 1)
+    adata_atac = synthetic_AnnData(seed = 2)
+    sc.tl.pca(adata_rna, n_comps=3)
+    compute_metacells(adata_rna, adata_atac,
+                 latent_key = 'X_pca',
+                  resolution = 1,
+                  celltype_key = 'cell_type')
+