Add API integration test for handling auth error.

x-pack/test/api_integration/apis/upgrade_assistant/es_deprecations.ts

@@ -0,0 +1,41 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License
+ * 2.0; you may not use this file except in compliance with the Elastic License
+ * 2.0.
+ */
+
+import { FtrProviderContext } from '../../ftr_provider_context';
+
+export default function ({ getService }: FtrProviderContext) {
+  const supertestWithoutAuth = getService('supertestWithoutAuth');
+  const security = getService('security');
+
+  describe('Elasticsearch deprecations', () => {
+    describe('GET /api/upgrade_assistant/es_deprecations', () => {
+      it('handles auth error', async () => {
+        const ROLE_NAME = 'authErrorRole';
+        const USER_NAME = 'authErrorUser';
+        const USER_PASSWORD = 'password';
+
+        try {
+          await security.role.create(ROLE_NAME, {});
+          await security.user.create(USER_NAME, {
+            password: USER_PASSWORD,
+            roles: [ROLE_NAME],
+          });
+
+          await supertestWithoutAuth
+            .get('/api/upgrade_assistant/es_deprecations')
+            .auth(USER_NAME, USER_PASSWORD)
+            .set('kbn-xsrf', 'kibana')
+            .send()
+            .expect(403);
+        } finally {
+          await security.role.delete(ROLE_NAME);
+          await security.user.delete(USER_NAME);
+        }
+      });
+    });
+  });
+}

x-pack/test/api_integration/apis/upgrade_assistant/index.ts

@@ -11,5 +11,6 @@ export default function ({ loadTestFile }: FtrProviderContext) {
   describe('Upgrade Assistant', () => {
     loadTestFile(require.resolve('./upgrade_assistant'));
     loadTestFile(require.resolve('./cloud_backup_status'));
+    loadTestFile(require.resolve('./es_deprecations'));
   });
 }