diff --git a/test/test_hierarchical.py b/test/test_hierarchical.py
index 40d2f88..ac74406 100644
--- a/test/test_hierarchical.py
+++ b/test/test_hierarchical.py
@@ -51,6 +51,28 @@ def test_hierarchical():
 
     np.testing.assert_array_almost_equal(orig.values, test.values, decimal=4)
 
+def test_hierarchical_for_weeks():
+
+    raw = pd.read_csv(
+        os.path.join(os.path.dirname(__file__), "..", "examples", "testdata.csv"),
+        index_col=0,
+    )
+
+    starttime = time.time()
+
+    aggregation = tsam.TimeSeriesAggregation(
+        raw,
+        noTypicalPeriods=8,
+        hoursPerPeriod=24*7,
+        clusterMethod="hierarchical",
+        extremePeriodMethod="new_cluster_center",
+        addPeakMin=["T"],
+        addPeakMax=["Load"],
+    )
+
+    typPeriods = aggregation.createTypicalPeriods()
+
+    print("Clustering took " + str(time.time() - starttime))
 
 if __name__ == "__main__":
     test_hierarchical()