How to implement universal authorization applicable to all tests in interface testing?

Universal authorization for all interface tests is usually implemented by creating a separate method or function that logs into the system and returns the necessary data for subsequent requests (such as a token or cookies). This method is called in the test framework setup before each test (for example, in beforeEach or setup) to ensure authorization.

Example in JavaScript using Jest and Puppeteer:

beforeEach(async () => {
  await page.goto('https://example.com/login');
  await page.type('#username', 'user');
  await page.type('#password', 'password');
  await page.click('#login-button');
  await page.waitForNavigation();
});

Authorization can also be implemented via API by obtaining a token and setting it in request headers or cookies, which speeds up tests and reduces UI dependency.

Thus, the key idea is to extract authorization into a separate reusable block that is run before each test or set of tests.