Remove `saas_add_seats_button` FF [RUN ALL RSPEC] [RUN AS-IF-FOSS]

config/feature_flags/development/saas_add_seats_button.yml

----
-name: saas_add_seats_button
-introduced_by_url: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/49242
-rollout_issue_url: https://gitlab.com/gitlab-org/gitlab/-/issues/291060
-milestone: '13.7'
-type: development
-group: group::purchase
-default_enabled: false

ee/app/assets/javascripts/billings/subscriptions/components/subscription_table.vue

@@ -4,7 +4,6 @@ import { escape } from 'lodash';
 import { mapActions, mapState, mapGetters } from 'vuex';
 import { TABLE_TYPE_DEFAULT, TABLE_TYPE_FREE, TABLE_TYPE_TRIAL } from 'ee/billings/constants';
 import { s__ } from '~/locale';
-import glFeatureFlagsMixin from '~/vue_shared/mixins/gl_feature_flags_mixin';
 import SubscriptionTableRow from './subscription_table_row.vue';
 
 const createButtonProps = (text, href, testId) => ({ text, href, testId });
@@ -16,7 +15,6 @@ export default {
     GlLoadingIcon,
     SubscriptionTableRow,
   },
-  mixins: [glFeatureFlagsMixin()],
   inject: {
     planUpgradeHref: {
       default: '',
@@ -43,26 +41,23 @@ export default {
   computed: {
     ...mapState(['isLoadingSubscription', 'hasErrorSubscription', 'plan', 'tables', 'endpoint']),
     ...mapGetters(['isFreePlan']),
+    isSubscription() {
+      return !this.isFreePlan;
+    },
     subscriptionHeader() {
       const planName = this.isFreePlan ? s__('SubscriptionTable|Free') : escape(this.planName);
-      const suffix = !this.isFreePlan && this.plan.trial ? s__('SubscriptionTable|Trial') : '';
+      const suffix = this.isSubscription && this.plan.trial ? s__('SubscriptionTable|Trial') : '';
 
       return `${this.namespaceName}: ${planName} ${suffix}`;
     },
-    canAddSeats() {
-      return this.glFeatures.saasAddSeatsButton && !this.isFreePlan;
-    },
-    canRenew() {
-      return !this.isFreePlan;
-    },
     canUpgrade() {
       return this.isFreePlan || this.plan.upgradable;
     },
     canUpgradeEEPlan() {
-      return !this.isFreePlan && this.planUpgradeHref;
+      return this.isSubscription && this.planUpgradeHref;
     },
     addSeatsButton() {
-      return this.canAddSeats
+      return this.isSubscription
         ? createButtonProps(
             s__('SubscriptionTable|Add seats'),
             this.addSeatsHref,
@@ -83,12 +78,12 @@ export default {
       return this.canUpgradeEEPlan ? this.planUpgradeHref : this.customerPortalUrl;
     },
     renewButton() {
-      return this.canRenew
+      return this.isSubscription
         ? createButtonProps(s__('SubscriptionTable|Renew'), this.planRenewHref, 'renew-button')
         : null;
     },
     manageButton() {
-      return !this.isFreePlan
+      return this.isSubscription
         ? createButtonProps(
             s__('SubscriptionTable|Manage'),
             this.customerPortalUrl,

ee/app/controllers/groups/billings_controller.rb

@@ -4,10 +4,6 @@ class Groups::BillingsController < Groups::ApplicationController
   before_action :authorize_admin_group!
   before_action :verify_namespace_plan_check_enabled
 
-  before_action only: [:index] do
-    push_frontend_feature_flag(:saas_add_seats_button)
-  end
-
   layout 'group_settings'
 
   feature_category :purchase

ee/changelogs/unreleased/ag-291060-feature-flag-rollout-of-saas_add_seats_button.yml

+---
+title: Show 'Add Seats' Button on Billing Page
+merge_request: 55964
+author:
+type: added

ee/spec/features/groups/billing_spec.rb

@@ -75,19 +75,6 @@ RSpec.describe 'Groups > Billing', :js do
         expect(page).to have_link("See usage", href: group_seat_usage_path(group))
       end
     end
-
-    context 'with disabled feature flags' do
-      before do
-        stub_feature_flags(saas_add_seats_button: false)
-        visit group_billings_path(group)
-      end
-
-      it 'does not show "Add Seats" button' do
-        within subscription_table do
-          expect(page).not_to have_link("Add seats")
-        end
-      end
-    end
   end
 
   context 'with a legacy paid plan' do
@@ -107,32 +94,4 @@ RSpec.describe 'Groups > Billing', :js do
       end
     end
   end
-
-  context 'with feature flags' do
-    where(:saas_add_seats_button) do
-      [
-        true, false
-      ]
-    end
-
-    let(:plan) { 'bronze' }
-
-    let_it_be(:subscription) do
-      create(:gitlab_subscription, namespace: group, hosted_plan: bronze_plan, seats: 15)
-    end
-
-    with_them do
-      before do
-        stub_feature_flags(saas_add_seats_button: saas_add_seats_button)
-      end
-
-      it 'pushes the correct feature flags' do
-        visit group_billings_path(group)
-
-        expect(page).to have_pushed_frontend_feature_flags(
-          saasAddSeatsButton: saas_add_seats_button
-        )
-      end
-    end
-  end
 end

ee/spec/frontend/billings/subscriptions/components/subscription_table_spec.js

@@ -19,19 +19,12 @@ describe('SubscriptionTable component', () => {
   let store;
   let wrapper;
 
-  const defaultFlags = { saasAddSeatsButton: false };
-
   const findAddSeatsButton = () => wrapper.findByTestId('add-seats-button');
   const findManageButton = () => wrapper.findByTestId('manage-button');
   const findRenewButton = () => wrapper.findByTestId('renew-button');
   const findUpgradeButton = () => wrapper.findByTestId('upgrade-button');
 
-  const createComponentWithStore = ({
-    props = {},
-    featureFlags = {},
-    provide = {},
-    state = {},
-  } = {}) => {
+  const createComponentWithStore = ({ props = {}, provide = {}, state = {} } = {}) => {
     store = new Vuex.Store(initialStore());
     jest.spyOn(store, 'dispatch').mockImplementation();
 
@@ -44,10 +37,6 @@ describe('SubscriptionTable component', () => {
           namespaceName,
           planName,
           ...provide,
-          glFeatures: {
-            defaultFlags,
-            ...featureFlags,
-          },
         },
         propsData: props,
       }),
@@ -120,7 +109,7 @@ describe('SubscriptionTable component', () => {
       ${null}     | ${false} | ${'does not render the button'}
       ${'free'}   | ${false} | ${'does not render the button'}
     `(
-      'given a plan with state: planCode = $planCode and saasAddSeatsButton = $featureFlag',
+      'given a plan with state: planCode = $planCode',
       ({ planCode, upgradable, expected, testDescription }) => {
         beforeEach(() => {
           createComponentWithStore({
@@ -170,19 +159,15 @@ describe('SubscriptionTable component', () => {
 
   describe('Add seats button', () => {
     describe.each`
-      planCode    | featureFlag | expected | testDescription
-      ${'silver'} | ${true}     | ${true}  | ${'renders the button'}
-      ${'silver'} | ${false}    | ${false} | ${'does not render the button'}
-      ${null}     | ${true}     | ${false} | ${'does not render the button'}
-      ${null}     | ${false}    | ${false} | ${'does not render the button'}
-      ${'free'}   | ${true}     | ${false} | ${'does not render the button'}
-      ${'free'}   | ${false}    | ${false} | ${'does not render the button'}
+      planCode    | expected | testDescription
+      ${'silver'} | ${true}  | ${'renders the button'}
+      ${null}     | ${false} | ${'does not render the button'}
+      ${'free'}   | ${false} | ${'does not render the button'}
     `(
-      'given a plan with state: planCode = $planCode and saasAddSeatsButton = $featureFlag',
-      ({ planCode, featureFlag, expected, testDescription }) => {
+      'given a plan with state: planCode = $planCode',
+      ({ planCode, expected, testDescription }) => {
         beforeEach(() => {
           createComponentWithStore({
-            featureFlags: { saasAddSeatsButton: featureFlag },
             state: {
               isLoadingSubscription: false,
               plan: {