diff --git a/pyproject.toml b/pyproject.toml
index c72da62..14ee48a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,6 +35,7 @@ sr-detector = { path = "./sr-detector" }
 nltk = "^3.9.1"
 scikit-learn = "^1.5.1"
 cohere = "^5.9.1"
+loguru = "^0.7.2"
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^8.2.2"
diff --git a/sr-data/src/tests/test_cluster.py b/sr-data/src/tests/test_cluster.py
new file mode 100644
index 0000000..9386801
--- /dev/null
+++ b/sr-data/src/tests/test_cluster.py
@@ -0,0 +1,45 @@
+"""
+Test case for cluster step.
+"""
+# The MIT License (MIT)
+#
+# Copyright (c) 2024 Aliaksei Bialiauski
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included
+# in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+import os
+import shutil
+import unittest
+from sr_data.steps.cluster import kmeans
+
+
+class TestCluster(unittest.TestCase):
+
+    def test_clusters_kmeans_numerical(self):
+        kmeans(
+            os.path.join(
+                os.path.dirname(os.path.realpath(__file__)), "to-cluster.csv"
+            ),
+            "kmeans"
+        )
+        expected = "kmeans/to-cluster/clusters"
+        self.assertTrue(
+            os.path.exists(expected),
+            f"Path {expected} does not exists"
+        )
+        shutil.rmtree("kmeans")
diff --git a/sr-data/src/tests/to-cluster.csv b/sr-data/src/tests/to-cluster.csv
new file mode 100644
index 0000000..87d5232
--- /dev/null
+++ b/sr-data/src/tests/to-cluster.csv
@@ -0,0 +1,9 @@
+repo,score
+jeff/foo,112.5
+jeff/testing,112.5
+jeff/some,112.5
+jeff/dummy,112.5
+jeff/bar2,112.5
+jeff/test1,112.5
+jeff/test,112.5
+jeff/bar,112.5