[Lens] Smokescreen lens test unskip (#80190)

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

Author: dej611

x-pack/test/functional/apps/lens/smokescreen.ts

@@ -13,8 +13,7 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
   const listingTable = getService('listingTable');
   const testSubjects = getService('testSubjects');
 
-  // Failing: See https://github.com/elastic/kibana/issues/77969
-  describe.skip('lens smokescreen tests', () => {
+  describe('lens smokescreen tests', () => {
     it('should allow creation of lens xy chart', async () => {
       await PageObjects.visualize.navigateToNewVisualization();
       await PageObjects.visualize.clickVisType('lens');
@@ -153,13 +152,16 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
         dimension: 'lnsXY_yDimensionPanel > lns-dimensionTrigger',
         operation: 'max',
         field: 'memory',
+        keepOpen: true,
       });
       await PageObjects.lens.editDimensionLabel('Test of label');
       await PageObjects.lens.editDimensionFormat('Percent');
       await PageObjects.lens.editDimensionColor('#ff0000');
       await PageObjects.lens.editMissingValues('Linear');
 
       await PageObjects.lens.assertMissingValues('Linear');
+
+      await PageObjects.lens.openDimensionEditor('lnsXY_yDimensionPanel > lns-dimensionTrigger');
       await PageObjects.lens.assertColor('#ff0000');
 
       await testSubjects.existOrFail('indexPattern-dimension-formatDecimals');

x-pack/test/functional/page_objects/lens_page.ts

@@ -114,6 +114,18 @@ export function LensPageProvider({ getService, getPageObjects }: FtrProviderCont
       }
     },
 
+    /**
+     * Open the specified dimension.
+     *
+     * @param dimension - the selector of the dimension panel to open
+     * @param layerIndex - the index of the layer
+     */
+    async openDimensionEditor(dimension: string, layerIndex = 0) {
+      await retry.try(async () => {
+        await testSubjects.click(`lns-layerPanel-${layerIndex} > ${dimension}`);
+      });
+    },
+
     // closes the dimension editor flyout
     async closeDimensionEditor() {
       await testSubjects.click('lns-indexPattern-dimensionContainerTitle');