Install @playwright/test to perform test in real browser

test/mocha-test-es6.mjs

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+import { UAParser } from 'ua-parser-js';
+import { CPUArch, DeviceType, EngineName } from 'ua-parser-js/enums';
+import * as assert from 'assert';
+
+describe('Returns', () => {
+    it('getResult() should returns object', () => {
+        assert.deepEqual(new UAParser('').getResult(), 
+            {
+                ua : '',
+                //ua_ch : { architecture: undefined, bitness: undefined, brands: undefined, fullVersionList: undefined, mobile: false, model: undefined, platform: undefined, platformVersion: undefined },
+                browser: { name: undefined, version: undefined, major: undefined },
+                cpu: { architecture: undefined },
+                device: { vendor: undefined, model: undefined, type: undefined },
+                engine: { name: undefined, version: undefined},
+                os: { name: undefined, version: undefined }
+        });
+    });
+});
+
+describe('Enums', () => {    
+    it('Can use enum', () => {
+        const { cpu, device, engine } = UAParser('Mozilla/5.0 (X11; U; Linux armv7l; en-GB; rv:1.9.2a1pre) Gecko/20090928 Firefox/3.5 Maemo Browser 1.4.1.22 RX-51 N900');
+        assert.strictEqual(cpu.is(CPUArch.ARM), true);
+        assert.strictEqual(device.is(DeviceType.MOBILE), true);
+        assert.strictEqual(engine.is(EngineName.GECKO), true);
+    });
+});