diff --git a/tests/test_webinterface.py b/tests/test_webinterface.py
index c4f622cdf2e5b4f75f800980b91775bee265c52e..b9ba13f083731f3b83a19c3c19fcbb79da84d4bc 100644
--- a/tests/test_webinterface.py
+++ b/tests/test_webinterface.py
@@ -5,6 +5,7 @@
 #
 # Copyright (C) 2019 Timm Fitschen (t.fitschen@indiscale.com)
 # Copyright (C) 2019 IndiScale GmbH
+# Copyright (C) 2019 Daniel Hornung (d.hornung@indiscale.com)
 #
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU Affero General Public License as
@@ -25,35 +26,33 @@
 
 @author: Timm Fitschen (t.fitschen@indiscale.com)
 """
-import caosdb as c
 from urllib import request
 from urllib.error import HTTPError
 import ssl
 import re
+import caosdb as c
 import pytest
 
+
 def test_webinterface_version_build():
+    """Tests if a correct build number is created and returned."""
     url = c.get_config().get("Connection", "url")
 
     context = ssl.SSLContext()
     context.verify_mode = ssl.CERT_NONE
 
-    buildNumber = request.urlopen(url + "webinterface/version/build",
-                          context=context).read().decode("utf8")
-    assert re.match(r"\d+", buildNumber)
+    build_number = request.urlopen(url + "webinterface/version/build",
+                                   context=context).read().decode("utf8")
+    assert re.match(r"\d+", build_number)
+
 
 def test_webinterface():
+    """Tests if a 404 error is correctly returned."""
     url = c.get_config().get("Connection", "url")
 
     context = ssl.SSLContext()
     context.verify_mode = ssl.CERT_NONE
 
-    buildNumber = request.urlopen(url + "webinterface/version/build",
-                          context=context).read().decode("utf8")
-
     with pytest.raises(HTTPError) as e404:
         request.urlopen(url + "webinterface/..", context=context)
     assert e404.value.code == 404
-
-
-