Adds a step to build lezer-matlab module and improves end-to-end testing framework.

Author: Kumar Pallav

src/jupyter_matlab_labextension/package.json

@@ -29,7 +29,7 @@
     "build:labextension": "jupyter labextension build .",
     "build:labextension:dev": "jupyter labextension build --development True .",
     "build:lib": "jlpm build:lezer && tsc",
-    "build:lezer": "cd src/lezer-matlab && npm install",
+    "build:lezer": "cd src/lezer-matlab && npm install && npm run build",
     "clean": "jlpm clean:lib",
     "clean:lib": "rimraf lib tsconfig.tsbuildinfo",
     "clean:lintcache": "rimraf .eslintcache .stylelintcache",

tests/e2e/tests/ui_tests.test.ts

@@ -1,25 +1,20 @@
-// Copyright 2023-2024 The MathWorks, Inc.
+// Copyright 2023-2025 The MathWorks, Inc.
 
 import { expect, test } from '@jupyterlab/galata';
-import { Locator } from '@playwright/test';
 
 test.describe('MATLAB File button', () => {
-    let MATLABFileButton: Locator;
-    test.beforeEach(async ({ page }) => {
-        await page.launcher.waitFor({ state: 'visible' });
-        MATLABFileButton = page.getByText('MATLAB File', { exact: true });
-    });
-
     test('is visible on Launcher', async ({ page }) => {
+        const MATLABFileButton = page.getByRole('button', { name: 'MATLAB File' });
         await expect(MATLABFileButton).toBeVisible();
     });
 
     test('takes you to .m file', async ({ page }) => {
+        const MATLABFileButton = page.getByRole('button', { name: 'MATLAB File' });
         await MATLABFileButton.click();
 
         // Expect a new untitled file ending in .m to be made, with optional
         // digits at the end of untitled, i.e. untitled1.m untitled1232.m)
-        await expect(page).toHaveURL(/.*untitled(\d+)?.m/);
+        await page.waitForURL(/.*untitled(\d+)?.m/);
 
         // MATLAB language mode selected:
         await expect(page.locator('#jp-main-statusbar')