fix(e2e): wait for tab in e2e code suggestions spec

test/e2e/helpers/generalHelpers.js

+import { browser } from '@wdio/globals';
 import { v4 as uuidv4 } from 'uuid';
 
 /**
@@ -13,4 +14,16 @@ const generateRandomString = length => {
   return randomString.slice(0, Number(length));
 };
 
-export { generateRandomString };
+const waitForEditorTab = async (editorView, filename) => {
+  await browser.waitUntil(
+    async () => {
+      const openTabs = await editorView.getOpenEditorTitles();
+      return openTabs.includes(filename);
+    },
+    {
+      timeoutMsg: `Tab for ${filename} did not appear.`,
+    },
+  );
+};
+
+export { generateRandomString, waitForEditorTab };

test/e2e/specs/code_suggestions.e2e.js

 import { browser } from '@wdio/globals';
-import { completeAuth, generateRandomString, verifyCodeSuggestion } from '../helpers/index.js';
+import {
+  completeAuth,
+  generateRandomString,
+  verifyCodeSuggestion,
+  waitForEditorTab,
+} from '../helpers/index.js';
 
 describe('GitLab Workflow Extension Code Suggestions', async () => {
   let workbench;
@@ -21,6 +26,7 @@ describe('GitLab Workflow Extension Code Suggestions', async () => {
     await prompt.confirm();
 
     const editorView = await workbench.getEditorView();
+    await waitForEditorTab(editorView, filename);
     tab = await editorView.openEditor(filename);
   });