diff --git a/others/Marvin/reportMarvinImp.md b/others/Marvin/reportMarvinImp.md
new file mode 100644
index 0000000000000000000000000000000000000000..53742940e0f0698529596e8bd3b8553df9d42324
--- /dev/null
+++ b/others/Marvin/reportMarvinImp.md
@@ -0,0 +1,4 @@
+| Name   | Interface break | Failed Testcases                                                                                                                              |
+|--------|-----------------|-----------------------------------------------------------------------------------------------------------------------------------------------|
+| Marvin | no              | test_add_multiple_negative_numbers (tests.testStringcalculator.TestStringCalculator) ... Negative numbers are not allowed: -10, -20, -30 FAIL |
+| Marvin | no              | test_add_single_negative_number (tests.testStringcalculator.TestStringCalculator) ... Negative numbers are not allowed: -2 FAIL               |
\ No newline at end of file
diff --git a/others/Marvin/reportMarvinTests.md b/others/Marvin/reportMarvinTests.md
new file mode 100644
index 0000000000000000000000000000000000000000..68709e75993d2a77904b903a89cecc4f4162adec
--- /dev/null
+++ b/others/Marvin/reportMarvinTests.md
@@ -0,0 +1,4 @@
+| Name   | Interface break | Failed Testcases                                                                                                                                                                                        |
+|--------|-----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| Marvin | no              | test_add_negative_numbers (others.Marvin.MarvinStringCalculator.TestStringCalculator) Feature 4: Negative Zahlen sollen Fehler werfen ... FAIL                                                          |
+| Marvin | no              | test_custom_long_delimiter_with_negative_numbers (others.Marvin.MarvinStringCalculator.TestStringCalculator) Feature 4 und 7: Benutzerdefinierter Delimiter beliebiger Länge + negative Zahlen ... FAIL |
\ No newline at end of file
diff --git a/tests/testStringcalculator.py b/tests/testStringcalculator.py
index a21f60dffa558d6dd7c60d129ab158be61692abe..a94a7edae417923a8255b816eafecf3f81eb6fea 100644
--- a/tests/testStringcalculator.py
+++ b/tests/testStringcalculator.py
@@ -42,9 +42,12 @@ from others.Wasili.WasiliStringCalculator import IStringCalculator, StringCalcul
 
 import unittest
 from others.Momo.MomoStringCalculator import StringCalculator
-'''
+
 import unittest
 from others.Alma.AlmaStringCalculator import IStringCalculator, StringCalculator
+'''
+import unittest
+from others.Marvin.MarvinStringCalculator import StringCalculator
 
 class TestStringCalculator(unittest.TestCase):
     def setUp(self):