[Functional Tests] Adds a wait time between setting the index pattern and the time field on TSVB (#74736)

* Adds a wait time between setting the index pattern and the time field on tsvb

* Char by char to set indexpattern to give more time to load the time field

* Add more time

* uncomment commented lines

Author: stratoula

test/functional/apps/visualize/_tsvb_chart.ts

@@ -26,7 +26,13 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
   const inspector = getService('inspector');
   const retry = getService('retry');
   const security = getService('security');
-  const PageObjects = getPageObjects(['visualize', 'visualBuilder', 'timePicker', 'visChart']);
+  const PageObjects = getPageObjects([
+    'visualize',
+    'visualBuilder',
+    'timePicker',
+    'visChart',
+    'common',
+  ]);
 
   describe('visual builder', function describeIndexTests() {
     this.tags('includeFirefox');
@@ -132,6 +138,7 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
         await retry.tryForTime(20000, async () => {
           await PageObjects.timePicker.setAbsoluteRange(fromTime, toTime);
           await PageObjects.visualBuilder.setIndexPatternValue('kibana_sample_data_flights');
+          await PageObjects.common.sleep(3000);
           await PageObjects.visualBuilder.selectIndexPatternTimeField('timestamp');
         });
         const newValue = await PageObjects.visualBuilder.getMetricValue();

test/functional/page_objects/visual_builder_page.ts

@@ -420,7 +420,7 @@ export function VisualBuilderPageProvider({ getService, getPageObjects }: FtrPro
     public async setIndexPatternValue(value: string) {
       const el = await testSubjects.find('metricsIndexPatternInput');
       await el.clearValue();
-      await el.type(value);
+      await el.type(value, { charByChar: true });
       await PageObjects.header.waitUntilLoadingHasFinished();
     }