[8.10] [Infra] Fix home_page functional tests (#165339) (#165433)

# Backport

This will backport the following commits from `main` to `8.10`:
- [[Infra] Fix home_page functional tests
(#165339)](https://github.com/elastic/kibana/pull/165339)

<!--- Backport version: 8.9.7 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Carlos
Crespo","email":"crespocarlos@users.noreply.github.com"},"sourceCommit":{"committedDate":"2023-09-01T08:04:15Z","message":"[Infra]
Fix home_page functional tests (#165339)\n\nfixes
[#164164](https://github.com/elastic/kibana/issues/164164)\r\n##
Summary\r\n\r\nFixes `home_page` functional
test\r\n\r\nhttps://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/3032","sha":"a6d0b782a4277864b032a89383324691cc1a9c6b","branchLabelMapping":{"^v8.11.0$":"main","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:fix","Feature:Metrics
UI","Team:Infra Monitoring
UI","backport:prev-minor","v8.10.0","v8.11.0"],"number":165339,"url":"https://github.com/elastic/kibana/pull/165339","mergeCommit":{"message":"[Infra]
Fix home_page functional tests (#165339)\n\nfixes
[#164164](https://github.com/elastic/kibana/issues/164164)\r\n##
Summary\r\n\r\nFixes `home_page` functional
test\r\n\r\nhttps://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/3032","sha":"a6d0b782a4277864b032a89383324691cc1a9c6b"}},"sourceBranch":"main","suggestedTargetBranches":["8.10"],"targetPullRequestStates":[{"branch":"8.10","label":"v8.10.0","labelRegex":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"main","label":"v8.11.0","labelRegex":"^v8.11.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/165339","number":165339,"mergeCommit":{"message":"[Infra]
Fix home_page functional tests (#165339)\n\nfixes
[#164164](https://github.com/elastic/kibana/issues/164164)\r\n##
Summary\r\n\r\nFixes `home_page` functional
test\r\n\r\nhttps://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/3032","sha":"a6d0b782a4277864b032a89383324691cc1a9c6b"}}]}]
BACKPORT-->

Co-authored-by: Carlos Crespo <crespocarlos@users.noreply.github.com>

x-pack/test/functional/apps/infra/home_page.ts

@@ -55,8 +55,7 @@ export default ({ getPageObjects, getService }: FtrProviderContext) => {
       });
     });
 
-    // FLAKY: https://github.com/elastic/kibana/issues/164164
-    describe.skip('with metrics present', () => {
+    describe('with metrics present', () => {
       before(async () => {
         await esArchiver.load('x-pack/test/functional/es_archives/infra/metrics_and_logs');
         await pageObjects.common.navigateToApp('infraOps');

x-pack/test/functional/page_objects/infra_home_page.ts

@@ -43,7 +43,7 @@ export function InfraHomePageProvider({ getService, getPageObjects }: FtrProvide
           throw new Error();
         }
       });
-      return await testSubjects.find('waffleMap');
+      return testSubjects.find('waffleMap');
     },
 
     async getWaffleMapTooltips() {
@@ -84,7 +84,7 @@ export function InfraHomePageProvider({ getService, getPageObjects }: FtrProvide
         const color = await nodeValue.getAttribute('color');
         return { name, value: parseFloat(value), color };
       });
-      return await Promise.all(promises);
+      return Promise.all(promises);
     },
 
     async sortNodesBy(sort: string) {
@@ -171,34 +171,31 @@ export function InfraHomePageProvider({ getService, getPageObjects }: FtrProvide
       return timelineSelectorsVisible.every((visible) => !visible);
     },
 
-    async openInventorySwitcher() {
-      await testSubjects.click('openInventorySwitcher');
-      return await testSubjects.find('goToHost1');
-    },
-
     async toggleInventorySwitcher() {
       await testSubjects.click('openInventorySwitcher');
       await testSubjects.find('goToHost');
       await testSubjects.click('openInventorySwitcher');
-      return await testSubjects.missingOrFail('goToHost');
+      retry.tryForTime(2 * 1000, async () => {
+        return testSubjects.missingOrFail('goToHost');
+      });
     },
 
     async goToHost() {
       await testSubjects.click('openInventorySwitcher');
       await testSubjects.find('goToHost');
-      return await testSubjects.click('goToHost');
+      return testSubjects.click('goToHost');
     },
 
     async goToPods() {
       await testSubjects.click('openInventorySwitcher');
       await testSubjects.find('goToHost');
-      return await testSubjects.click('goToPods');
+      return testSubjects.click('goToPods');
     },
 
     async goToDocker() {
       await testSubjects.click('openInventorySwitcher');
       await testSubjects.find('goToHost');
-      return await testSubjects.click('goToDocker');
+      return testSubjects.click('goToDocker');
     },
 
     async goToSettings() {
@@ -238,23 +235,23 @@ export function InfraHomePageProvider({ getService, getPageObjects }: FtrProvide
     },
 
     async getSaveViewButton() {
-      return await testSubjects.find('openSaveViewModal');
+      return testSubjects.find('openSaveViewModal');
     },
 
     async getLoadViewsButton() {
-      return await testSubjects.find('loadViews');
+      return testSubjects.find('loadViews');
     },
 
     async openSaveViewsFlyout() {
-      return await testSubjects.click('loadViews');
+      return testSubjects.click('loadViews');
     },
 
     async closeSavedViewFlyout() {
-      return await testSubjects.click('cancelSavedViewModal');
+      return testSubjects.click('cancelSavedViewModal');
     },
 
     async openCreateSaveViewModal() {
-      return await testSubjects.click('openSaveViewModal');
+      return testSubjects.click('openSaveViewModal');
     },
 
     async openEnterViewNameAndSave() {
@@ -263,23 +260,23 @@ export function InfraHomePageProvider({ getService, getPageObjects }: FtrProvide
     },
 
     async getNoMetricsIndicesPrompt() {
-      return await testSubjects.find('noDataPage');
+      return testSubjects.find('noDataPage');
     },
 
     async getNoMetricsDataPrompt() {
-      return await testSubjects.find('noMetricsDataPrompt');
+      return testSubjects.find('noMetricsDataPrompt');
     },
 
     async getNoRemoteClusterPrompt() {
-      return await testSubjects.find('infraHostsNoRemoteCluster');
+      return testSubjects.find('infraHostsNoRemoteCluster');
     },
 
     async getInfraMissingMetricsIndicesCallout() {
-      return await testSubjects.find('infraIndicesPanelSettingsWarningCallout');
+      return testSubjects.find('infraIndicesPanelSettingsWarningCallout');
     },
 
     async getInfraMissingRemoteClusterIndicesCallout() {
-      return await testSubjects.find('infraIndicesPanelSettingsDangerCallout');
+      return testSubjects.find('infraIndicesPanelSettingsDangerCallout');
     },
 
     async openSourceConfigurationFlyout() {
@@ -436,7 +433,7 @@ export function InfraHomePageProvider({ getService, getPageObjects }: FtrProvide
     },
 
     async clickDismissKubernetesTourButton() {
-      return await testSubjects.click('infra-kubernetesTour-dismiss');
+      return testSubjects.click('infra-kubernetesTour-dismiss');
     },
   };
 }