diff --git a/tests.py b/tests.py
index fd250fc..b37305c 100644
--- a/tests.py
+++ b/tests.py
@@ -158,6 +158,13 @@ class TestUserItems(BaseTestCase):
         self.assertEqual(response['kanji_count'], self.count_filter(self.user_kanji))
         self.assertEqual(response['vocabulary_count'], self.count_filter(self.user_vocabulary))
 
+    def test_filter_invalid_type(self):
+        user = self.get_user()
+        self.login(user)
+        response = self.client.get('/user_items?item_types=invalid')
+        response = json.loads(response.data)
+        self.assertEqual(response, dict(error='No items within these filter parameters'))
+
     def test_filter_single_level(self):
         test_data = [1]
         user = self.get_user()
@@ -178,6 +185,14 @@ class TestUserItems(BaseTestCase):
         self.assertEqual(response['kanji_count'], self.count_filter(self.user_kanji, level_range=test_data))
         self.assertEqual(response['vocabulary_count'], self.count_filter(self.user_vocabulary, level_range=test_data))
 
+    def test_filter_invalid_levels(self):
+        test_data = [0, 61, 1000]
+        user = self.get_user()
+        self.login(user)
+        response = self.client.get('/user_items?level_range=' + (self.flatten_list_to_string(test_data)))
+        response = json.loads(response.data)
+        self.assertEqual(response, dict(error='No items within these filter parameters'))
+
     def test_filter_single_state(self):
         test_data = ['enlighten']
         user = self.get_user()
@@ -198,6 +213,14 @@ class TestUserItems(BaseTestCase):
         self.assertEqual(response['kanji_count'], self.count_filter(self.user_kanji, test_data))
         self.assertEqual(response['vocabulary_count'], self.count_filter(self.user_vocabulary, test_data))
 
+    def test_filter_invalid_state(self):
+        test_data = ['invalid', 'alsoinvalid']
+        user = self.get_user()
+        self.login(user)
+        response = self.client.get('/user_items?item_state=' + (self.flatten_list_to_string(test_data)))
+        response = json.loads(response.data)
+        self.assertEqual(response, dict(error='No items within these filter parameters'))
+
 
 if __name__ == '__main__':
     unittest.main()