[8.x] [Console] Avoid duplicate suggestions in autocomplete (#201766)

src/plugins/console/public/lib/autocomplete/engine.js

@@ -119,19 +119,24 @@ export function populateContext(tokenPath, context, editor, includeAutoComplete,
     editor
   );
   if (includeAutoComplete) {
-    let autoCompleteSet = [];
+    let autoCompleteSet = new Map();
     _.each(walkStates, function (ws) {
       const contextForState = passThroughContext(context, ws.contextExtensionList);
       _.each(ws.components, function (component) {
         _.each(component.getTerms(contextForState, editor), function (term) {
           if (!_.isObject(term)) {
             term = { name: term };
           }
-          autoCompleteSet.push(term);
+
+          // Add the term to the autoCompleteSet if it doesn't already exist
+          if (!autoCompleteSet.has(term.name)) {
+            autoCompleteSet.set(term.name, term);
+          }
         });
       });
     });
-    autoCompleteSet = _.uniq(autoCompleteSet);
+    // Convert Map values to an array of objects
+    autoCompleteSet = Array.from(autoCompleteSet.values());
     context.autoCompleteSet = autoCompleteSet;
   }
 

test/functional/apps/console/_autocomplete.ts

@@ -66,6 +66,28 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
         await PageObjects.console.clearEditorText();
       });
 
+      it('should not show duplicate suggestions', async () => {
+        await PageObjects.console.enterText(`POST _ingest/pipeline/_simulate
+{
+  "pipeline": {
+    "processors": [
+      {
+        "script": {`);
+        await PageObjects.console.pressEnter();
+        await PageObjects.console.sleepForDebouncePeriod();
+        await PageObjects.console.enterText(`"`);
+        expect(PageObjects.console.isAutocompleteVisible()).to.be.eql(true);
+
+        // Iterate on the first 10 suggestions (the ones that are only visible without scrolling)
+        const suggestions = [];
+        for (let i = 0; i < 10; i++) {
+          suggestions.push(await PageObjects.console.getAutocompleteSuggestion(i));
+        }
+
+        // and expect the array to not have duplicates
+        expect(suggestions).to.eql(_.uniq(suggestions));
+      });
+
       it('HTTP methods', async () => {
         const suggestions = {
           G: ['GET'],