diff --git a/matemat/webserver/test/abstract_httpd_test.py b/matemat/webserver/test/abstract_httpd_test.py
index 0817d41..5680836 100644
--- a/matemat/webserver/test/abstract_httpd_test.py
+++ b/matemat/webserver/test/abstract_httpd_test.py
@@ -118,7 +118,7 @@ class MockServer:
         )
         # Set up logger
         self.logger: logging.Logger = logging.getLogger('matemat unit test')
-        self.logger.setLevel(0)
+        self.logger.setLevel(logging.DEBUG)
         # Initalize a log handler to stderr and set the log format
         sh: logging.StreamHandler = logging.StreamHandler()
         sh.setFormatter(logging.Formatter('%(asctime)s %(name)s [%(levelname)s]: %(message)s'))
diff --git a/matemat/webserver/test/test_serve.py b/matemat/webserver/test/test_serve.py
index 5db53b3..c67e06e 100644
--- a/matemat/webserver/test/test_serve.py
+++ b/matemat/webserver/test/test_serve.py
@@ -3,6 +3,8 @@ from typing import Any, Dict, Union
 
 import os
 import os.path
+from datetime import datetime, timedelta
+
 from matemat.exceptions import HttpException
 from matemat.webserver import HttpHandler, RequestArguments, PageletResponse, RedirectResponse, TemplateResponse
 from matemat.webserver.test.abstract_httpd_test import AbstractHttpdTest, test_pagelet
@@ -163,6 +165,34 @@ class TestServe(AbstractHttpdTest):
         self.assertEqual(403, packet.statuscode)
         self.assertNotEqual(b'This should not be readable', packet.body)
 
+    def test_serve_static_cache(self):
+        # Request a static resource
+        timeout: datetime = datetime.utcnow() + timedelta(hours=1)
+        timeoutstr = timeout.strftime('%a, %d %b %Y %H:%M:%S GMT')
+        self.client_sock.set_request(
+            f'GET /static_resource.txt HTTP/1.1\r\nIf-Modified-Since: {timeoutstr}\r\n\r\n'.encode('utf-8'))
+        HttpHandler(self.client_sock, ('::1', 45678), self.server)
+        packet = self.client_sock.get_response()
+
+        # Make sure that no pagelet was called
+        self.assertIsNone(packet.pagelet)
+        # Make sure a 304 Not Modified is sent and the body is empty
+        self.assertEqual(304, packet.statuscode)
+        self.assertEqual(0, len(packet.body))
+
+    def test_serve_static_cache_renew(self):
+        # Request a static resource
+        self.client_sock.set_request(
+            b'GET /static_resource.txt HTTP/1.1\r\nIf-Modified-Since: Mon, 01 Jan 2018 13:37:42 GMT\r\n\r\n')
+        HttpHandler(self.client_sock, ('::1', 45678), self.server)
+        packet = self.client_sock.get_response()
+
+        # Make sure that no pagelet was called
+        self.assertIsNone(packet.pagelet)
+        # Make sure the expected content is served
+        self.assertEqual(200, packet.statuscode)
+        self.assertEqual(b'static resource test', packet.body)
+
     def test_serve_not_found(self):
         # Request a nonexistent resource
         self.client_sock.set_request(b'GET /nonexistent HTTP/1.1\r\n\r\n')