// Java Selenium example
WebDriver driver = new ChromeDriver();
driver.get("https://example.com");
WebElement element = driver.findElement(By.id("username"));
element.sendKeys("testuser");
driver.quit();

// Cypress example
describe('Login', () => {
  it('should login successfully', () => {
    cy.visit('/login');
    cy.get('#username').type('testuser');
    cy.get('#password').type('password');
    cy.get('#login').click();
    cy.url().should('include', '/dashboard');
  });
});

// Playwright JavaScript example
const { chromium } = require('playwright');

(async () => {
  const browser = await chromium.launch();
  const page = await browser.newPage();
  await page.goto('https://example.com');
  await page.fill('#username', 'testuser');
  await page.click('#login');
  await browser.close();
})();

// Puppeteer example
const puppeteer = require('puppeteer');

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('https://example.com');
  await page.type('#username', 'testuser');
  await page.click('#login');
  await browser.close();
})();

// Jest example
describe('Calculator', () => {
  test('adds 1 + 2 to equal 3', () => {
    expect(add(1, 2)).toBe(3);
  });
  
  test('async operation', async () => {
    const result = await fetchData();
    expect(result).toEqual({ data: 'test' });
  });
});

// Mocha example with Chai
const { expect } = require('chai');
const sinon = require('sinon');

describe('UserService', () => {
  it('should return user data', async () => {
    const user = await userService.getUser(1);
    expect(user).to.have.property('id', 1);
  });
});

// Vitest example
import { describe, it, expect } from 'vitest';

describe('Math', () => {
  it('should add numbers', () => {
    expect(add(1, 2)).toBe(3);
  });
});

// Jasmine example
describe('Calculator', () => {
  it('should add numbers', () => {
    const result = add(1, 2);
    expect(result).toBe(3);
  });
});

# pytest example
def test_addition():
    assert add(1, 2) == 3

@pytest.fixture
def user_data():
    return {'id': 1, 'name': 'Test User'}

def test_user(user_data):
    assert user_data['name'] == 'Test User'

# unittest example
import unittest

class TestCalculator(unittest.TestCase):
    def test_addition(self):
        result = add(1, 2)
        self.assertEqual(result, 3)

// JUnit 5 example
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.*;

class CalculatorTest {
    @Test
    void testAddition() {
        assertEquals(3, add(1, 2));
    }
}

// TestNG example
import org.testng.annotations.Test;
import static org.testng.Assert.*;

public class CalculatorTest {
    @Test
    public void testAddition() {
        assertEquals(add(1, 2), 3);
    }
}

// Mockito example
import static org.mockito.Mockito.*;

List<String> mockList = mock(List.class);
when(mockList.get(0)).thenReturn("first");
assertEquals("first", mockList.get(0));
verify(mockList).get(0);

// Appium Java example
AppiumDriver driver = new AndroidDriver(new URL("http://localhost:4723/wd/hub"), capabilities);
driver.findElement(By.id("username")).sendKeys("testuser");
driver.quit();

// Espresso example
onView(withId(R.id.username))
    .perform(typeText("testuser"))
    .check(matches(withText("testuser")));

// XCUITest example
let app = XCUIApplication()
app.textFields["username"].tap()
app.textFields["username"].typeText("testuser")

// Postman test script
pm.test("Status code is 200", function () {
    pm.response.to.have.status(200);
});

pm.test("Response has data", function () {
    var jsonData = pm.response.json();
    pm.expect(jsonData.data).to.exist;
});

// REST Assured example
given()
    .header("Content-Type", "application/json")
    .body("{\"name\":\"test\"}")
.when()
    .post("/api/users")
.then()
    .statusCode(201)
    .body("name", equalTo("test"));

// Supertest example
const request = require('supertest');
const app = require('./app');

describe('API', () => {
  it('should create user', async () => {
    const res = await request(app)
      .post('/api/users')
      .send({ name: 'test' })
      .expect(201);
    expect(res.body.name).toBe('test');
  });
});