diff --git a/custom_components/danish_libraries/api.py b/custom_components/danish_libraries/api.py
index b4c3b7b..3860a1f 100644
--- a/custom_components/danish_libraries/api.py
+++ b/custom_components/danish_libraries/api.py
@@ -120,7 +120,9 @@ async def authenticate(self):
             token_text = token_response.text
 
             self.user_token = re.search(r"\"user\",\s*\"(.*?)\"", token_text).group(1)
-            self.library_token = re.search(r"\"library\",\s*\"(.*?)\"", token_text).group(1)
+            self.library_token = re.search(
+                r"\"library\",\s*\"(.*?)\"", token_text
+            ).group(1)
         except httpx.HTTPStatusError as e:
             if e.response.status_code >= 500:
                 LOGGER.debug(e, exc_info=True)
diff --git a/tests/test_api.py b/tests/test_api.py
index 86932a1..5bd3541 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -10,56 +10,69 @@
 import pytest
 
 from custom_components.danish_libraries.api import Library
-from custom_components.danish_libraries.models import EreolenLoan, EreolenReservation, LibraryConfig, Loan, ProfileInfo, Reservation
+from custom_components.danish_libraries.models import (
+    EreolenLoan,
+    EreolenReservation,
+    LibraryConfig,
+    Loan,
+    ProfileInfo,
+    Reservation,
+)
 
 dotenv.load_dotenv()
 
+
 async def test_auth():
-    user = os.getenv('LIBRARY_USER_ID')
-    pin = os.getenv('LIBRARY_PIN')
+    user = os.getenv("LIBRARY_USER_ID")
+    pin = os.getenv("LIBRARY_PIN")
     lib = Library("Aalborg", user, pin)
     await lib.authenticate()
     assert lib.user_bearer_token != None
 
+
 async def test_loans():
-    user = os.getenv('LIBRARY_USER_ID')
-    pin = os.getenv('LIBRARY_PIN')
+    user = os.getenv("LIBRARY_USER_ID")
+    pin = os.getenv("LIBRARY_PIN")
     lib = Library("Aalborg", user, pin)
     loans = await lib.get_loans()
     assert loans != None
     assert len(loans) > 0
     assert isinstance(loans[0], Loan)
 
+
 async def test_reservations():
-    user = os.getenv('LIBRARY_USER_ID')
-    pin = os.getenv('LIBRARY_PIN')
+    user = os.getenv("LIBRARY_USER_ID")
+    pin = os.getenv("LIBRARY_PIN")
     lib = Library("Aalborg", user, pin)
     reservations = await lib.get_reservations()
     assert reservations != None
     assert len(reservations) > 0
     assert isinstance(reservations[0], Reservation)
 
+
 async def test_profile():
-    user = os.getenv('LIBRARY_USER_ID')
-    pin = os.getenv('LIBRARY_PIN')
+    user = os.getenv("LIBRARY_USER_ID")
+    pin = os.getenv("LIBRARY_PIN")
     lib = Library("Aalborg", user, pin)
     profile = await lib.get_profile_info()
     assert profile != None
     assert isinstance(profile, ProfileInfo)
     assert "gmail.com" in profile.email_address
 
+
 async def test_ereolen_loans():
-    user = os.getenv('LIBRARY_USER_ID')
-    pin = os.getenv('LIBRARY_PIN')
+    user = os.getenv("LIBRARY_USER_ID")
+    pin = os.getenv("LIBRARY_PIN")
     lib = Library("Aalborg", user, pin)
     loans = await lib.get_ereolen_loans()
     assert loans != None
     assert len(loans) > 0
     assert isinstance(loans[0], EreolenLoan)
 
+
 async def test_ereolen_reservations():
-    user = os.getenv('LIBRARY_USER_ID')
-    pin = os.getenv('LIBRARY_PIN')
+    user = os.getenv("LIBRARY_USER_ID")
+    pin = os.getenv("LIBRARY_PIN")
     lib = Library("Aalborg", user, pin)
     reservations = await lib.get_ereolen_reservations()
     assert reservations != None