[Functional][TSVB] Wait for markdown textarea to be cleaned (elastic#…

…85128) (elastic#85371)

* [TSVB] Wait for markdown textarea to be cleaned

* No need for retry

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

test/functional/page_objects/visual_builder_page.ts

@@ -131,8 +131,8 @@ export function VisualBuilderPageProvider({ getService, getPageObjects }: FtrPro
  }
 
  public async enterMarkdown(markdown: string) {
- const input = await find.byCssSelector('.tvbMarkdownEditor__editor textarea');
  await this.clearMarkdown();
+ const input = await find.byCssSelector('.tvbMarkdownEditor__editor textarea');
  await input.type(markdown);
  await PageObjects.common.sleep(3000);
  }
@@ -147,14 +147,20 @@ export function VisualBuilderPageProvider({ getService, getPageObjects }: FtrPro
  const value = $('.ace_line').text();
  if (value.length > 0) {
  log.debug('Clearing text area input');
- const input = await find.byCssSelector('.tvbMarkdownEditor__editor textarea');
- await input.clearValueWithKeyboard();
+ this.waitForMarkdownTextAreaCleaned();
  }
 
  return value.length === 0;
  });
  }
 
+ public async waitForMarkdownTextAreaCleaned() {
+ const input = await find.byCssSelector('.tvbMarkdownEditor__editor textarea');
+ await input.clearValueWithKeyboard();
+ const text = await this.getMarkdownText();
+ return text.length === 0;
+ }
+
  public async getMarkdownText(): Promise<string> {
  const el = await find.byCssSelector('.tvbEditorVisualization');
  const text = await el.getVisibleText();