diff --git a/app/test_calculator.py b/app/test_calculator.py
index f564193..f4d4697 100644
--- a/app/test_calculator.py
+++ b/app/test_calculator.py
@@ -29,3 +29,6 @@ def test_divide():
     assert Calculator.divide(0, 2.0) == 0
     assert Calculator.divide(-4, 2.0) == -2.0
     # assert Calculator.divide(2.0, 0.0) == 'Cannot divide by 0'
+
+def test_fail():
+    assert False is True