Install @playwright/test to perform test in real browser

test/mocha-test.js

@@ -4,7 +4,7 @@ var assert      = require('assert');
 var requirejs   = require('requirejs');
 var parseJS     = require('@babel/parser').parse;
 var traverse    = require('@babel/traverse').default;
-var UAParser    = require('./../src/ua-parser');
+var UAParser    = require('../src/ua-parser');
 var browsers    = require('./specs/browser-all.json');
 var cpus        = require('./specs/cpu-all.json');
 var devices     = require('./specs/device-all.json');

test/playwright-test-browser.spec.mjs

@@ -0,0 +1,44 @@
+// @ts-check
+import { test, expect } from '@playwright/test';
+import path from 'path';
+import url from 'url';
+
+test('read client hints data', async ({ page }) => {
+  await page.addInitScript(() => {
+    Object.defineProperty(navigator, 'userAgentData', { 
+      value : {
+        brands : [],
+        platform : '',
+        mobile : false,
+        getHighEntropyValues : () => {
+          return Promise.resolve({
+            brands : [
+              {
+                brand : 'Chromium',
+                version : '110'
+              },
+              {
+                brand : 'Not(A:Brand',
+                version : '110'
+              },
+              {
+                brand : 'New Browser',
+                version : '110'
+              }
+            ],
+            platform : 'New OS'
+          });
+        }
+      }
+    });
+  });
+
+  const dirname = path.resolve(path.dirname(url.fileURLToPath(import.meta.url)), '../');
+  await page.goto(`file://${dirname}/dist/ua-parser.html`);
+
+  // @ts-ignore
+  const uap = await page.evaluate(async () => await UAParser().withClientHints());
+  
+  expect(uap).toHaveProperty('browser.name', 'New Browser');
+  expect(uap).toHaveProperty('os.name', 'New OS');
+});