diff --git a/test/test_failure.py b/test/test_failure.py
new file mode 100644
index 0000000..20847fa
--- /dev/null
+++ b/test/test_failure.py
@@ -0,0 +1,8 @@
+import unittest
+
+class FailureTest(unittest.TestCase):
+    def test_wrong_addition(self):
+        self.assertEqual(2 + 2, 5)
+
+if __name__ == "__main__":
+    unittest.main()