Fix instance overrides page

https://gitlab.com/gitlab-org/gitlab/-/merge_requests/71998#note_769694649

https://gitlab.com/gitlab-org/gitlab/-/issues/289975

app/views/shared/integrations/overrides.html.haml

-- add_to_breadcrumbs _('Integrations'), scoped_integrations_path(project: project, group: group)
+- add_to_breadcrumbs _('Integrations'), scoped_integrations_path(project: @project, group: @group)
 - breadcrumb_title @integration.title
 - page_title @integration.title, _('Integrations')
 - @content_class = 'limit-container-width' unless fluid_layout

spec/controllers/admin/integrations_controller_spec.rb

@@ -105,40 +105,4 @@ RSpec.describe Admin::IntegrationsController do
         .and change { Integrations::Jira.inherit_from_id(integration.id).count }.by(-1)
     end
   end
-
-  describe '#overrides' do
-    let_it_be(:instance_integration) { create(:bugzilla_integration, :instance) }
-    let_it_be(:non_overridden_integration) { create(:bugzilla_integration, inherit_from_id: instance_integration.id) }
-    let_it_be(:overridden_integration) { create(:bugzilla_integration) }
-    let_it_be(:overridden_other_integration) { create(:confluence_integration) }
-
-    subject do
-      get :overrides, params: { id: instance_integration.class.to_param }, format: format
-    end
-
-    context 'when format is JSON' do
-      let(:format) { :json }
-
-      include_context 'JSON response'
-
-      it 'returns projects with overrides', :aggregate_failures do
-        subject
-
-        expect(response).to have_gitlab_http_status(:ok)
-        expect(response).to include_pagination_headers
-        expect(json_response).to contain_exactly(a_hash_including('full_name' => overridden_integration.project.full_name))
-      end
-    end
-
-    context 'when format is HTML' do
-      let(:format) { :html }
-
-      it 'renders template' do
-        subject
-
-        expect(response).to render_template 'shared/integrations/overrides'
-        expect(assigns(:integration)).to eq(instance_integration)
-      end
-    end
-  end
 end

spec/requests/admin/integrations_controller_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Admin::IntegrationsController, :enable_admin_mode do
+  let_it_be(:admin) { create(:admin) }
+
+  before do
+    sign_in(admin)
+  end
+
+  describe 'GET #overrides' do
+    let_it_be(:integration) { create(:jira_integration, :instance) }
+    let_it_be(:overridden_integration) { create(:jira_integration) }
+    let_it_be(:overridden_other_integration) { create(:confluence_integration) }
+
+    let(:overrides_path) { overrides_admin_application_settings_integration_path(integration, format: format) }
+
+    context 'format html' do
+      let(:format) { :html }
+
+      it 'renders' do
+        get overrides_path
+
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(response).to render_template('shared/integrations/overrides')
+      end
+    end
+
+    context 'format json' do
+      let(:format) { :json }
+      let(:project) { overridden_integration.project }
+
+      it 'returns the project overrides data' do
+        get overrides_path
+
+        expect(response).to have_gitlab_http_status(:ok)
+        expect(response).to include_pagination_headers
+        expect(json_response).to contain_exactly(
+          {
+            'avatar_url' => project.avatar_url,
+            'full_name' => project.full_name,
+            'name' => project.name,
+            'full_path' => project_path(project)
+          }
+        )
+      end
+    end
+  end
+end