diff --git a/correlationHistogramAnalysis/tests/test.py b/correlationHistogramAnalysis/tests/test.py
new file mode 100644
index 0000000..26e5ad2
--- /dev/null
+++ b/correlationHistogramAnalysis/tests/test.py
@@ -0,0 +1,11 @@
+import unittest
+import correlationHistogramAnalysis.dissociation_tracks as diss
+
+class TestCorrHist(unittest.TestCase):
+    def test_parse_formula(self):
+        e,_= diss.parse_formula('Fe2O3')
+        self.assertTrue(len(e)==1)
+        self.assertEqual(list(e.keys())[0],'Fe')
+
+if __name__ == "__main__":
+    unittest.main()
\ No newline at end of file