add sample test file

e2e-tests/specs/sample.js

@@ -0,0 +1,14 @@
+const { expect, browser, $ } = require('@wdio/globals');
+
+describe('My Login application', () => {
+  it('should login with valid credentials', async () => {
+    await browser.url(`https://the-internet.herokuapp.com/login`);
+
+    await $('#username').setValue('tomsmith');
+    await $('#password').setValue('SuperSecretPassword!');
+    await $('button[type="submit"]').click();
+
+    await expect($('#flash')).toBeExisting();
+    await expect($('#flash')).toHaveTextContaining('You logged into a secure area!');
+  });
+});