Test 26/26 successful

converter.py

@@ -163,6 +163,18 @@ class TestConverter(unittest.TestCase):
         res = self.c.convert(4000)
         self.assertEqual(res, "MMMM")
 
+    def test_convertThirty(self):
+        res = self.c.convert(30)
+        self.assertEqual(res, "XXX")
+
+    def test_convertNinety(self):
+        res = self.c.convert(90)
+        self.assertEqual(res, "XC")
+
+    def test_convertEmpty(self):
+        res = self.c.convert('')
+        self.assertEqual(res, "Bitte ganze Zahlen eingeben")
+