integration-test: Create authentication setup

integration-tests/auth.setup.ts

@@ -0,0 +1,17 @@
+import { test as setup, expect } from '@playwright/test';
+
+const authFile = 'playwright/.auth/user.json';
+
+const ROOT_URL = "http://localhost:8080";
+const LOGIN_PASSWORD = "eliandoran";
+
+// Reference: https://playwright.dev/docs/auth#basic-shared-account-in-all-tests 
+
+setup("authenticate", async ({ page }) => {
+    await page.goto(ROOT_URL);
+    await expect(page).toHaveURL(`${ROOT_URL}/login`);
+
+    await page.getByRole("textbox", { name: "Password" }).fill(LOGIN_PASSWORD);
+    await page.getByRole("button", { name: "Login"}).click();
+    await page.context().storageState({ path: authFile });    
+});