Support api_integration/kibana/stats against remote hosts (#53000)

* Support api_integration/kibana/stats against remote hosts

The stats API integration tests run under the assumption of a fixed
kibana.yml.  This is the case when running against a
default FTR configuration, but not when running against remote servers.
This relaxes a few assertions and conditionally runs in cases that can't be
relaxed.

Resolves #37386

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>

x-pack/test/api_integration/apis/kibana/stats/stats.js

@@ -9,49 +9,45 @@ import expect from '@kbn/expect';
 export default function({ getService }) {
   const supertestNoAuth = getService('supertestWithoutAuth');
   const supertest = getService('supertest');
+  const config = getService('config');
 
   describe('/api/stats', () => {
     describe('operational stats and usage stats', () => {
+      // lazy check for uuid for test runs against preexisting services
+      function isUUID(uuid) {
+        return typeof uuid === 'string' && uuid.length === 36;
+      }
+
       describe('no auth', () => {
-        it('should return 200 and stats for no extended', async () => {
+        // depends on kibana.yml setting status.allowAnonymous
+        // skip this test when running against a remote host, as we can't
+        // validate the status of this setting
+        const host = config.get('servers.kibana.hostname');
+        const ifLocalhost = host.includes('localhost') ? it : it.skip;
+        ifLocalhost('should return 200 and stats for no extended', async () => {
           const { body } = await supertestNoAuth.get('/api/stats').expect(200);
-          expect(body.kibana.uuid).to.eql('5b2de169-2785-441b-ae8c-186a1936b17d');
-          expect(body.process.uptime_ms).to.be.greaterThan(0);
-          expect(body.os.uptime_ms).to.be.greaterThan(0);
-          expect(body.usage).to.be(undefined);
+          expect(isUUID(body.kibana.uuid)).to.be.ok();
         });
 
-        // FLAKY: https://github.com/elastic/kibana/issues/29254
-        it.skip('should return 401 for extended', async () => {
-          await supertestNoAuth.get('/api/stats?extended').expect(401); // unauthorized
+        it('should return 401 for extended', async () => {
+          await supertestNoAuth.get('/api/stats?extended').expect(401);
         });
       });
 
       describe('with auth', () => {
         it('should return 200 and stats for no extended', async () => {
           const { body } = await supertest.get('/api/stats').expect(200);
-          expect(body.kibana.uuid).to.eql('5b2de169-2785-441b-ae8c-186a1936b17d');
-          expect(body.process.uptime_ms).to.be.greaterThan(0);
-          expect(body.os.uptime_ms).to.be.greaterThan(0);
+          expect(isUUID(body.kibana.uuid)).to.be.ok();
         });
 
         it('should return 200 for extended', async () => {
           const { body } = await supertest.get('/api/stats?extended').expect(200);
-          expect(body.kibana.uuid).to.eql('5b2de169-2785-441b-ae8c-186a1936b17d');
-          expect(body.process.uptime_ms).to.be.greaterThan(0);
-          expect(body.os.uptime_ms).to.be.greaterThan(0);
-          expect(body.usage.kibana.index).to.be('.kibana');
-          expect(body.usage.kibana.dashboard.total).to.be(0);
+          expect(isUUID(body.kibana.uuid)).to.be.ok();
         });
 
         it('should return 200 for extended and legacy', async () => {
           const { body } = await supertest.get('/api/stats?extended&legacy').expect(200);
-          expect(body.kibana.uuid).to.eql('5b2de169-2785-441b-ae8c-186a1936b17d');
-          expect(body.process.uptime_ms).to.be.greaterThan(0);
-          expect(body.os.uptime_ms).to.be.greaterThan(0);
-          expect(body.usage.index).to.be('.kibana');
-          expect(body.usage.dashboard.total).to.be(0);
-          expect(body.usage.xpack.reporting.available).to.be(true);
+          expect(isUUID(body.kibana.uuid)).to.be.ok();
         });
       });
     });