diff --git a/tests/test_offline.py b/tests/test_offline.py
index dc1a54a..f25c353 100644
--- a/tests/test_offline.py
+++ b/tests/test_offline.py
@@ -47,6 +47,7 @@ class TestOffline(unittest.TestCase):
         m.register_uri('DELETE', self.domain + 'events/3', json={'errors': ['Invalid event'], 'message': 'Invalid event', 'name': 'Invalid event', 'url': '/events/3'})
         m.register_uri('DELETE', self.domain + 'attributes/2', json={'message': 'Attribute deleted.'})
         m.register_uri('GET', self.domain + 'events/index/searchtag:1', json=self.search_index_result)
+        m.register_uri('GET', self.domain + 'events/index/searchtag:ecsirt:malicious-code=%22ransomware%22', json=self.search_index_result)
 
     def test_getEvent(self, m):
         self.initURI(m)
@@ -134,11 +135,17 @@ class TestOffline(unittest.TestCase):
         json.dumps(misp_event, cls=EncodeUpdate)
         json.dumps(misp_event, cls=EncodeFull)
 
-    def test_searchIndexByTag (self, m):
+    def test_searchIndexByTagId (self, m):
         self.initURI(m)
         pymisp = PyMISP(self.domain, self.key)
         response = pymisp.search_index(tag="1")
         self.assertEqual(response['response'],self.search_index_result)
+    
+    def test_searchIndexByTagName (self, m):
+        self.initURI(m)
+        pymisp = PyMISP(self.domain, self.key)
+        response = pymisp.search_index(tag='ecsirt:malicious-code="ransomware"')
+        self.assertEqual(response['response'],self.search_index_result)
 
 if __name__ == '__main__':
     unittest.main()