diff --git a/app/models/user.rb b/app/models/user.rb
index 01478df8d..801a37865 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -223,11 +223,11 @@ returns
     return if !password || password == ''
 
     # try to find user based on login
-    user = User.find_by( login: username.downcase, active: true )
+    user = User.find_by(login: username.downcase, active: true)
 
     # try second lookup with email
     if !user
-      user = User.find_by( email: username.downcase, active: true )
+      user = User.find_by(email: username.downcase, active: true)
     end
 
     # check failed logins
diff --git a/lib/auth.rb b/lib/auth.rb
index 26e33564c..70d2cca5a 100644
--- a/lib/auth.rb
+++ b/lib/auth.rb
@@ -7,7 +7,7 @@ class Auth
 
 authenticate user via username and password
 
-  result = Auth.check( username, password, user )
+  result = Auth.check(username, password, user)
 
 returns
 
@@ -28,7 +28,7 @@ returns
     ]
 
     # added configured backends
-    Setting.where( area: 'Security::Authentication' ).each {|setting|
+    Setting.where(area: 'Security::Authentication').each {|setting|
       if setting.state_current[:value]
         config.push setting.state_current[:value]
       end
@@ -40,10 +40,10 @@ returns
       next if !config_item[:adapter]
 
       # load backend
-      backend = load_adapter( config_item[:adapter] )
+      backend = load_adapter(config_item[:adapter])
       next if !backend
 
-      user_auth = backend.check( username, password, config_item, user )
+      user_auth = backend.check(username, password, config_item, user)
 
       # auth not ok
       next if !user_auth
diff --git a/lib/auth/internal.rb b/lib/auth/internal.rb
index d146b0c49..3aa9121d1 100644
--- a/lib/auth/internal.rb
+++ b/lib/auth/internal.rb
@@ -9,7 +9,7 @@ module Auth::Internal
 
     # sha auth check
     if user.password =~ /^\{sha2\}/
-      crypted = Digest::SHA2.hexdigest( password )
+      crypted = Digest::SHA2.hexdigest(password)
       return user if user.password == "{sha2}#{crypted}"
     end
 
diff --git a/test/unit/auth_test.rb b/test/unit/auth_test.rb
index 41ec20d32..0216f87de 100644
--- a/test/unit/auth_test.rb
+++ b/test/unit/auth_test.rb
@@ -1,59 +1,21 @@
 # encoding: utf-8
 require 'test_helper'
 
-# set config
-if !ENV['LDAP_HOST']
-  fail "ERROR: Need LDAP_HOST - hint LDAP_HOST='ldap://ci.zammad.org'"
-end
-
-Setting.create_or_update(
-  title: 'Authentication via LDAP',
-  name: 'auth_ldap',
-  area: 'Security::Authentication',
-  description: 'Enables user authentication via LDAP.',
-  state: {
-    adapter: 'Auth::Ldap',
-    host: ENV['LDAP_HOST'],
-    port: 389,
-    bind_dn: 'cn=Manager,dc=example,dc=org',
-    bind_pw: 'example',
-    uid: 'mail',
-    base: 'dc=example,dc=org',
-    always_filter: '',
-    always_roles: %w(Admin Agent),
-    always_groups: ['Users'],
-    sync_params: {
-      firstname: 'sn',
-      lastname: 'givenName',
-      email: 'mail',
-      login: 'mail',
-    },
-  },
-  frontend: false
-)
-
-user = User.lookup(email: 'nicole.braun@zammad.org')
-if user
-  user.update_attributes(
-    login: 'nicole.braun',
-    password: 'some_pass',
-    active: true,
-  )
-else
-  User.create_if_not_exists(
-    login: 'nicole.braun',
-    firstname: 'Nicole',
-    lastname: 'Braun',
-    email: 'nicole.braun@zammad.org',
-    password: 'some_pass',
-    active: true,
-    updated_by_id: 1,
-    created_by_id: 1
-  )
-end
-
 class AuthTest < ActiveSupport::TestCase
   test 'auth' do
+
+    user = User.find_by(email: 'nicole.braun@zammad.org')
+    user.update_attributes(
+      login: 'nicole.braun',
+      firstname: 'Nicole',
+      lastname: 'Braun',
+      email: 'nicole.braun@zammad.org',
+      password: 'some_pass',
+      active: true,
+      updated_by_id: 1,
+      created_by_id: 1
+    )
+
     tests = [
 
       # test 1
@@ -99,18 +61,6 @@ class AuthTest < ActiveSupport::TestCase
         }
       },
 
-      # test 5
-      {
-        username: 'paige.chen@example.org',
-        password: 'password',
-        result: true,
-        verify: {
-          firstname: 'Chen',
-          lastname: 'Paige',
-          email: 'paige.chen@example.org',
-        }
-      },
-
     ]
     tests.each { |test|
       user = User.authenticate(test[:username], test[:password])