stabilize dashboard snapshot toast closing (#58709) (#59271)

Author: flash1293

test/functional/apps/dashboard/dashboard_snapshots.js

@@ -50,7 +50,7 @@ export default function({ getService, getPageObjects, updateBaselines }) {
       await PageObjects.dashboard.clickNewDashboard();
       await PageObjects.timePicker.setLogstashDataRange();
       await dashboardAddPanel.addVisualization('Rendering Test: tsvb-ts');
-      await PageObjects.common.closeToast();
+      await PageObjects.common.closeToastIfExists();
 
       await PageObjects.dashboard.saveDashboard('tsvb');
       await PageObjects.dashboard.clickFullScreenMode();
@@ -73,7 +73,7 @@ export default function({ getService, getPageObjects, updateBaselines }) {
       await PageObjects.dashboard.clickNewDashboard();
       await PageObjects.timePicker.setLogstashDataRange();
       await dashboardAddPanel.addVisualization('Rendering Test: area with not filter');
-      await PageObjects.common.closeToast();
+      await PageObjects.common.closeToastIfExists();
 
       await PageObjects.dashboard.saveDashboard('area');
       await PageObjects.dashboard.clickFullScreenMode();

test/functional/page_objects/common_page.ts

@@ -429,6 +429,13 @@ export function CommonPageProvider({ getService, getPageObjects }: FtrProviderCo
       return title;
     }
 
+    async closeToastIfExists() {
+      const toastShown = await find.existsByCssSelector('.euiToast');
+      if (toastShown) {
+        await this.closeToast();
+      }
+    }
+
     async clearAllToasts() {
       const toasts = await find.allByCssSelector('.euiToast');
       for (const toastElement of toasts) {