[Reporting] Unskip flaky test when downloading CSV with "no data" (#105252) (#106210)

* unskipped test and added additional checks when using time picker

* rather wait for the timepicker to close

* set up test for flaky test runner

* Additional .only

* Remove .only

Co-authored-by: Kibana Machine <[email protected]>

Co-authored-by: Jean-Louis Leysens <[email protected]>

Author: kibanamachine

test/functional/page_objects/time_picker.ts

@@ -132,6 +132,11 @@ export class TimePickerPageObject extends FtrService {
     await this.testSubjects.click('superDatePickerAbsoluteTab');
     await this.testSubjects.click('superDatePickerAbsoluteDateInput');
     await this.inputValue('superDatePickerAbsoluteDateInput', fromTime);
+    await this.browser.pressKeys(this.browser.keys.ESCAPE);
+
+    await this.retry.waitFor('Timepicker popover to close', async () => {
+      return !(await this.testSubjects.exists('superDatePickerAbsoluteDateInput'));
+    });
 
     const superDatePickerApplyButtonExists = await this.testSubjects.exists(
       'superDatePickerApplyTimeButton'

x-pack/test/functional/apps/discover/reporting.ts

@@ -73,8 +73,7 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
       });
     });
 
-    // FLAKY: https://github.com/elastic/kibana/issues/104372
-    describe.skip('Generate CSV: new search', () => {
+    describe('Generate CSV: new search', () => {
       beforeEach(async () => {
         await kibanaServer.importExport.load(ecommerceSOPath);
         await PageObjects.common.navigateToApp('discover');