diff --git a/setup.cfg b/setup.cfg
index e1d02df..f9a1c46 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -43,6 +43,7 @@ dev =
     pytest
     pytest-cov
     pytest-flask
+    pytest-mock
     flake8
     selenium
     beautifulsoup4
\ No newline at end of file
diff --git a/tests/test_webinterface.py b/tests/test_webinterface.py
index 27aa54f..3467844 100644
--- a/tests/test_webinterface.py
+++ b/tests/test_webinterface.py
@@ -1,4 +1,5 @@
 from bs4 import BeautifulSoup
+from imaginaerraum_door_admin.door_handle import DoorHandle
 
 def test_login(browser, live_server):
     response = browser.get(f'http://localhost:{live_server.port}')
@@ -14,10 +15,7 @@ def test_login(browser, live_server):
     assert 'Tür öffnen' in browser.page_source
 
 
-def login(client, payload):
-    return client.post('/login', data=payload, follow_redirects=True)
-
-def test_login_headless(client):
+def headless_login(client):
     # extract csrf token from the login page source
     response = client.get('/login')
     soup = BeautifulSoup(response.data)
@@ -29,11 +27,35 @@ def test_login_headless(client):
          'email': 'gandalf@shire.me',
          'password': 'shadowfax'
     }
-    response = login(client, payload)
+    return client.post('/login', data=payload, follow_redirects=True)
+
+def test_login_headless(client):
+    response = headless_login(client)
     soup = BeautifulSoup(response.data)
 
     # make sure login succeeded -> Tür öffnen button will appear
     assert any(['Tür öffnen' in link.contents[0] for link in soup.findAll('a', attrs={'class': ['btn'], 'role': 'button'})])
 
-def logout(client):
-    return client.get('/logout', follow_redirects=True)
\ No newline at end of file
+def test_open_door_button(client, mocker):
+    mocker.patch('imaginaerraum_door_admin.door_handle.DoorHandle.open_door')
+
+    # we need to log in in order to open the door
+    response = headless_login(client)
+
+    # visit route for open
+    client.get('/open')
+
+    # make sure the open method was called
+    DoorHandle.open_door.assert_called_once_with(user='gandalf')
+
+def test_close_door_button(client, mocker):
+    mocker.patch('imaginaerraum_door_admin.door_handle.DoorHandle.close_door')
+
+    # we need to log in in order to open the door
+    response = headless_login(client)
+
+    # visit route for open
+    client.get('/close')
+
+    # make sure the open method was called
+    DoorHandle.close_door.assert_called_once_with(user='gandalf')
\ No newline at end of file