diff --git a/tests/test_esbo_etc.py b/tests/test_esbo_etc.py
new file mode 100644
index 0000000..6e1971e
--- /dev/null
+++ b/tests/test_esbo_etc.py
@@ -0,0 +1,10 @@
+from unittest import TestCase
+from esbo_etc import esbo_etc
+import logging
+
+
+class Testesbo_etc(TestCase):
+    def test_run(self):
+        etc = esbo_etc("tests/data/esbo-etc_defaults.xml", logging.WARNING)
+        res = etc.run()
+        self.assertAlmostEqual(res.value, 47.29125798685691)