Fix setting `last_credential_check` on LDAP-login

lib/gitlab/ldap/access.rb

@@ -16,7 +16,7 @@ module Gitlab
       def self.allowed?(user)
         self.open(user) do |access|
           if access.allowed?
-            Users::UpdateService.new(user, last_credential_check_a: Time.now).execute
+            Users::UpdateService.new(user, last_credential_check_at: Time.now).execute
 
             true
           else

spec/lib/gitlab/ldap/access_spec.rb

@@ -4,6 +4,16 @@ describe Gitlab::LDAP::Access, lib: true do
   let(:access) { Gitlab::LDAP::Access.new user }
   let(:user) { create(:omniauth_user) }
 
+  describe '.allowed?' do
+    it 'updates the users `last_credential_check_at' do
+      expect(access).to receive(:allowed?) { true }
+      expect(described_class).to receive(:open).and_yield(access)
+
+      expect { described_class.allowed?(user) }
+        .to change { user.last_credential_check_at }
+    end
+  end
+
   describe '#allowed?' do
     subject { access.allowed? }