[Security Solution] Attempt to fix flaky anomalies test on entity ana…

…lytics page (#161453)

## Summary

 Attempt to fix flaky anomalies test on entity analytics page.
Test:
`x-pack/plugins/security_solution/cypress/e2e/explore/dashboards/entity_analytics.cy.ts:324`

The test was flaky because it took too long to load the table content. I
added some extra waiting points so that the rest of the application has
already loaded when the table loading starts. It reduced the flakiness,
but to prevent it from happening at all I also increase the default
timeout to 15sec.

Tested it 100 times on CI:

https://buildkite.com/elastic/kibana-flaky-test-suite-runner/builds/2579#_
<img width="786" alt="Screenshot 2023-07-07 at 16 01 35"
src="https://github.com/elastic/kibana/assets/1490444/370b1df8-f6b6-4d27-a509-b149a831a4f7">

x-pack/plugins/security_solution/cypress/e2e/explore/dashboards/entity_analytics.cy.ts

@@ -10,7 +10,12 @@ import { login, visit } from '../../../tasks/login';
 import { ALERTS_URL, ENTITY_ANALYTICS_URL } from '../../../urls/navigation';
 
 import { esArchiverLoad, esArchiverUnload } from '../../../tasks/es_archiver';
-import { cleanKibana, deleteAlertsAndRules } from '../../../tasks/common';
+import {
+  cleanKibana,
+  deleteAlertsAndRules,
+  waitForPageToBeLoaded,
+  waitForTableToLoad,
+} from '../../../tasks/common';
 import {
   ANOMALIES_TABLE,
   ANOMALIES_TABLE_ROWS,
@@ -313,11 +318,15 @@ describe('Entity Analytics Dashboard', () => {
     beforeEach(() => {
       login();
       visit(ENTITY_ANALYTICS_URL);
+      waitForPageToBeLoaded();
     });
 
     it('renders table with pagination', () => {
       cy.get(ANOMALIES_TABLE).should('be.visible');
-      cy.get(ANOMALIES_TABLE_ROWS).should('have.length', 10);
+      waitForTableToLoad();
+
+      // Increase default timeout because anomalies table takes a while to load
+      cy.get(ANOMALIES_TABLE_ROWS, { timeout: 20000 }).should('have.length', 10);
 
       // navigates to next page
       cy.get(ANOMALIES_TABLE_NEXT_PAGE_BUTTON).click();

x-pack/plugins/security_solution/cypress/e2e/explore/host_details/risk_tab.cy.ts

@@ -7,7 +7,7 @@
 
 import { login, visitHostDetailsPage } from '../../../tasks/login';
 
-import { cleanKibana } from '../../../tasks/common';
+import { cleanKibana, waitForTableToLoad } from '../../../tasks/common';
 import { esArchiverLoad, esArchiverUnload } from '../../../tasks/es_archiver';
 import { TABLE_CELL, TABLE_ROWS } from '../../../screens/alerts_details';
 
@@ -49,8 +49,3 @@ describe('risk tab', () => {
     );
   });
 });
-
-export const waitForTableToLoad = () => {
-  cy.get('.euiBasicTable-loading').should('exist');
-  cy.get('.euiBasicTable-loading').should('not.exist');
-};

x-pack/plugins/security_solution/cypress/tasks/common.ts

@@ -12,6 +12,7 @@ import {
   LOADING_INDICATOR,
   LOADING_INDICATOR_HIDDEN,
 } from '../screens/security_header';
+import { EUI_BASIC_TABLE_LOADING } from '../screens/common/controls';
 
 const primaryButton = 0;
 
@@ -280,3 +281,8 @@ export const waitForWelcomePanelToBeLoaded = () => {
   cy.get(KIBANA_LOADING_ICON).should('exist');
   cy.get(KIBANA_LOADING_ICON).should('not.exist');
 };
+
+export const waitForTableToLoad = () => {
+  cy.get(EUI_BASIC_TABLE_LOADING).should('exist');
+  cy.get(EUI_BASIC_TABLE_LOADING).should('not.exist');
+};