diff --git a/test/Handler/Utils/SubmissionSpec.hs b/test/Handler/Utils/SubmissionSpec.hs
index ed50724ba..4a16c559d 100644
--- a/test/Handler/Utils/SubmissionSpec.hs
+++ b/test/Handler/Utils/SubmissionSpec.hs
@@ -51,7 +51,6 @@ makeUsers (fromIntegral -> n) = do
     let baseid = "user." <> tshow i
         u' = u { userIdent          = CI.mk   baseid 
                , userEmail          = CI.mk $ baseid <> "@example.com"
-               , userLdapPrimaryKey = Just  $ baseid <> ".ldap"
                }
     return u'
   uids <- insertMany users
diff --git a/test/Model/TypesSpec.hs b/test/Model/TypesSpec.hs
index fe9eb7325..b8b0eca50 100644
--- a/test/Model/TypesSpec.hs
+++ b/test/Model/TypesSpec.hs
@@ -10,7 +10,6 @@ module Model.TypesSpec
 
 import TestImport
 import TestInstances ()
-import Settings
 
 import Utils (guardOn)
 
@@ -21,7 +20,6 @@ import qualified Data.Aeson.Types as Aeson
 import Model.Types.LanguagesSpec ()
 
 import System.IO.Unsafe
-import Yesod.Auth.Util.PasswordStore
 
 import Database.Persist.Sql (SqlBackend, fromSqlKey, toSqlKey)
 
@@ -217,21 +215,6 @@ instance Arbitrary Value where
       arbitrary' = scale (`div` 2) arbitrary
   shrink = genericShrink
 
-instance Arbitrary AuthenticationMode where
-  arbitrary = oneof
-    [ pure AuthLDAP
-    , do
-        pw <- encodeUtf8 . pack . getPrintableString <$> arbitrary
-        let
-          PWHashConf{..} = appAuthPWHash compileTimeAppSettings
-          authPWHash = unsafePerformIO . fmap decodeUtf8 $ makePasswordWith pwHashAlgorithm pw (pwHashStrength `div` 2)
-        return $ AuthPWHash{..}
-    ]
-
-  shrink AuthLDAP = []
-  shrink AuthNoLogin = []
-  shrink (AuthPWHash _) = [AuthLDAP]
-
 instance Arbitrary LecturerType where
   arbitrary = genericArbitrary
   shrink = genericShrink
@@ -462,8 +445,6 @@ spec = do
       [ eqLaws, ordLaws, boundedEnumLaws, showReadLaws, jsonLaws, finiteLaws, pathPieceLaws, persistFieldLaws ]
     lawsCheckHspec (Proxy @CorrectorState)
       [ eqLaws, ordLaws, showReadLaws, boundedEnumLaws, jsonLaws, finiteLaws, pathPieceLaws, persistFieldLaws ]
-    lawsCheckHspec (Proxy @AuthenticationMode)
-      [ eqLaws, ordLaws, showReadLaws, jsonLaws, persistFieldLaws ]
     lawsCheckHspec (Proxy @Value)
       [ persistFieldLaws ]
     lawsCheckHspec (Proxy @Scientific)
diff --git a/test/ModelSpec.hs b/test/ModelSpec.hs
index 729f1a769..7fb5c4bc9 100644
--- a/test/ModelSpec.hs
+++ b/test/ModelSpec.hs
@@ -1,4 +1,4 @@
--- SPDX-FileCopyrightText: 2022 Gregor Kleen <gregor.kleen@ifi.lmu.de>,Sarah Vaupel <sarah.vaupel@ifi.lmu.de>,Steffen Jost <jost@cip.ifi.lmu.de>,Steffen Jost <jost@tcs.ifi.lmu.de>
+-- SPDX-FileCopyrightText: 2022-2024 Sarah Vaupel <sarah.vaupel@uniworx.de>, Gregor Kleen <gregor.kleen@ifi.lmu.de>,Sarah Vaupel <sarah.vaupel@ifi.lmu.de>,Steffen Jost <jost@cip.ifi.lmu.de>,Steffen Jost <jost@tcs.ifi.lmu.de>
 --
 -- SPDX-License-Identifier: AGPL-3.0-or-later
 
@@ -9,7 +9,7 @@ module ModelSpec where
 
 import TestImport
 
-import Settings (getTimeLocale', VerpMode(..))
+import Settings
 
 import Model.TypesSpec ()
 import MailSpec ()
@@ -34,9 +34,10 @@ import qualified Data.CryptoID.Class.ImplicitNamespace as Implicit
 import qualified Data.CryptoID.Class as Explicit
 import Data.Binary.SerializationLength
 
-import Control.Monad.Catch.Pure (Catch, runCatch)
+import System.IO.Unsafe
+import Yesod.Auth.Util.PasswordStore
 
-import System.IO.Unsafe (unsafePerformIO)
+import Control.Monad.Catch.Pure (Catch, runCatch)
 
 import Data.Universe
 
@@ -102,7 +103,12 @@ instance Arbitrary User where
       [ getPrintableString <$> arbitrary
       , on (\l d -> l <> "@" <> d) getPrintableString <$> arbitrary <*> arbitrary
       ]
-    userAuthentication <- arbitrary
+    userPasswordHash <-
+      let genPwd = do
+            pw <- encodeUtf8 . pack . getPrintableString <$> arbitrary
+            let PWHashConf{..} = appAuthPWHash compileTimeAppSettings
+            return . unsafePerformIO . fmap decodeUtf8 $ makePasswordWith pwHashAlgorithm pw (pwHashStrength `div` 2)
+       in oneof [ pure Nothing, Just <$> genPwd ]
     userLastAuthentication <- arbitrary
     userTokensIssuedAfter <- arbitrary
     userMatrikelnummer <- fmap pack . assertM' (not . null) <$> listOf (elements ['0'..'9'])
@@ -146,14 +152,7 @@ instance Arbitrary User where
     userExamOfficeGetLabels <- arbitrary
 
     userCreated <- arbitrary
-    userLastLdapSynchronisation <- arbitrary
-    userLdapPrimaryKey <- oneof
-      [ pure Nothing
-      , fmap Just $ pack <$> oneof
-        [ getPrintableString <$> arbitrary
-        , on (\l d -> l <> "@" <> d) getPrintableString <$> arbitrary <*> arbitrary
-        ]
-      ]
+    userLastSync <- arbitrary
 
     return User{..}
   shrink = genericShrink
diff --git a/test/User.hs b/test/User.hs
index 239488fff..c3fba1640 100644
--- a/test/User.hs
+++ b/test/User.hs
@@ -21,8 +21,9 @@ fakeUser adjUser = adjUser User{..}
     UserDefaultConf{..} = appUserDefaults compileTimeAppSettings
     
     userMatrikelnummer = Nothing
-    userAuthentication = AuthLDAP
+    userPasswordHash = Nothing
     userLastAuthentication = Nothing
+    userLastSync = Nothing
     userTokensIssuedAfter = Nothing
     userIdent = "dummy@example.invalid"
     userEmail = "dummy@example.invalid"
@@ -48,8 +49,6 @@ fakeUser adjUser = adjUser User{..}
     userShowSex = userDefaultShowSex
     userNotificationSettings = def
     userCreated = unsafePerformIO getCurrentTime
-    userLastLdapSynchronisation = Nothing
-    userLdapPrimaryKey = Nothing
     userMobile = Nothing 
     userTelephone = Nothing     
     userCompanyPersonalNumber = Nothing