De-duplicate auth helper EE specs

Part of https://gitlab.com/gitlab-org/gitlab/-/issues/211887

.rubocop.yml

@@ -221,10 +221,8 @@ GitlabSecurity/PublicSend:
 
 Gitlab/DuplicateSpecLocation:
   Exclude:
-    - ee/spec/helpers/auth_helper_spec.rb
     - ee/spec/lib/gitlab/gl_repository_spec.rb
     - ee/spec/services/merge_requests/refresh_service_spec.rb
-    - ee/spec/helpers/ee/auth_helper_spec.rb
     - ee/spec/services/ee/merge_requests/refresh_service_spec.rb
 
 Cop/InjectEnterpriseEditionModule:

ee/spec/helpers/auth_helper_spec.rb

-# frozen_string_literal: true
-
-require "spec_helper"
-
-describe AuthHelper do
-  describe "button_based_providers" do
-    it 'excludes group_saml' do
-      allow(helper).to receive(:auth_providers) { [:group_saml] }
-      expect(helper.button_based_providers).to eq([])
-    end
-  end
-
-  describe "providers_for_base_controller" do
-    it 'excludes group_saml' do
-      allow(helper).to receive(:auth_providers) { [:group_saml] }
-      expect(helper.providers_for_base_controller).to eq([])
-    end
-  end
-
-  describe "form_based_providers" do
-    it 'includes kerberos provider' do
-      allow(helper).to receive(:auth_providers) { [:twitter, :kerberos] }
-      expect(helper.form_based_providers).to eq %i(kerberos)
-    end
-  end
-
-  describe 'form_based_auth_provider_has_active_class?' do
-    it 'selects main LDAP server' do
-      allow(helper).to receive(:auth_providers) { [:twitter, :ldapprimary, :ldapsecondary, :kerberos] }
-      expect(helper.form_based_auth_provider_has_active_class?(:twitter)).to be(false)
-      expect(helper.form_based_auth_provider_has_active_class?(:ldapprimary)).to be(true)
-      expect(helper.form_based_auth_provider_has_active_class?(:ldapsecondary)).to be(false)
-      expect(helper.form_based_auth_provider_has_active_class?(:kerberos)).to be(false)
-    end
-  end
-end

ee/spec/helpers/ee/auth_helper_spec.rb

@@ -3,6 +3,37 @@
 require 'spec_helper'
 
 describe EE::AuthHelper do
+  describe "button_based_providers" do
+    it 'excludes group_saml' do
+      allow(helper).to receive(:auth_providers) { [:group_saml] }
+      expect(helper.button_based_providers).to eq([])
+    end
+  end
+
+  describe "providers_for_base_controller" do
+    it 'excludes group_saml' do
+      allow(helper).to receive(:auth_providers) { [:group_saml] }
+      expect(helper.providers_for_base_controller).to eq([])
+    end
+  end
+
+  describe "form_based_providers" do
+    it 'includes kerberos provider' do
+      allow(helper).to receive(:auth_providers) { [:twitter, :kerberos] }
+      expect(helper.form_based_providers).to eq %i(kerberos)
+    end
+  end
+
+  describe 'form_based_auth_provider_has_active_class?' do
+    it 'selects main LDAP server' do
+      allow(helper).to receive(:auth_providers) { [:twitter, :ldapprimary, :ldapsecondary, :kerberos] }
+      expect(helper.form_based_auth_provider_has_active_class?(:twitter)).to be(false)
+      expect(helper.form_based_auth_provider_has_active_class?(:ldapprimary)).to be(true)
+      expect(helper.form_based_auth_provider_has_active_class?(:ldapsecondary)).to be(false)
+      expect(helper.form_based_auth_provider_has_active_class?(:kerberos)).to be(false)
+    end
+  end
+
   describe "form_based_providers" do
     context 'with smartcard_auth feature flag off' do
       before do