--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/unit/test_event_controller.py	Fri Sep 17 17:42:54 2021 +0200
@@ -0,0 +1,45 @@
+from unittest import TestCase
+from dependencies.python.event_controller import *
+
+
+class TestUnwrapStringParameters(TestCase):
+
+    @staticmethod
+    def create_event(query_string_parameter):
+        event = {
+            "resource": "/sentiment",
+            "path": "/sentiment",
+            "httpMethod": "GET",
+            "isBase64Encoded": False,
+            "queryStringParameters": query_string_parameter
+        }
+
+        return event
+
+    def test_unwrap_sentiment_string_parameters(self):
+        test_cases = {
+            '1': None,
+            '2': {'twitterUser': ''},
+            '3': {'twitterUser': 'dennisconcep'},
+            '4': {'numberOfTweets': ''},
+            '5': {'numberOfTweets': '50'},
+            '6': {'twitterUser': 'dennisconcep', 'numberOfTweets': '50'}
+        }
+
+        expected_results = {
+            '1': {'twitterUser': 'Twitter', 'numberOfTweets': '100'},
+            '2': {'twitterUser': 'Twitter', 'numberOfTweets': '100'},
+            '3': {'twitterUser': 'dennisconcep', 'numberOfTweets': '100'},
+            '4': {'twitterUser': 'Twitter', 'numberOfTweets': '100'},
+            '5': {'twitterUser': 'Twitter', 'numberOfTweets': '50'},
+            '6': {'twitterUser': 'dennisconcep', 'numberOfTweets': '50'}
+        }
+
+        for test_number in test_cases:
+            event = self.create_event(test_cases[test_number])
+            twitter_user, number_of_tweets = unwrap_sentiment_string_parameters(event)
+            expected_twitter_user = expected_results[test_number]['twitterUser']
+            expected_number_of_tweets = expected_results[test_number]['numberOfTweets']
+
+            self.assertEqual(twitter_user, expected_twitter_user)
+            self.assertEqual(number_of_tweets, expected_number_of_tweets)