public class TestLogin {
    WebDriver driver = new FirefoxDriver();
    WebDriverWait wait = new WebDriverWait(driver, 10);
    String url = "https://www.saucedemo.com/index.html";

    @Test
    public void signIn() {
        // 1. Go to url
        driver.get(url);
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("user-name")));

        // 2. Entering account credentials
        WebElement usernameField = driver.findElement(By.id("user-name"));
        WebElement passwordField = driver.findElement(By.id("password"));
        usernameField.sendKeys("standard_user");
        passwordField.sendKeys("secret_sauce");

        // 3. Clicking login button
        driver.findElement(By.cssSelector("input.btn_action")).click();

        // 4. Verifying that user is logged in
        String productsHeader = driver.findElement(By.cssSelector("div.product_label")).getText();
        System.out.println(productsHeader);
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.className("product_label")));
        Assert.assertTrue("User should be signed in", productsHeader.contains("Products"));

        // 5. Logging out
        driver.findElement(By.className("bm-burger-button")).click();
        driver.findElement(By.id("logout_sidebar_link")).click();

        // 6. Verify that user is signed out
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("password")));
        System.out.println(passwordField.isDisplayed());
        // String passwordId = "password";
        //Assert.assertTrue("User should be logged out", driver.findElement(By.id("password")).isPresent());
    }

    @Test
    public void addToCart() {
        // 1. Go to url
        driver.get(url);
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.id("user-name")));

        // 2. Entering account credentials
        WebElement usernameField = driver.findElement(By.id("user-name"));
        WebElement passwordField = driver.findElement(By.id("password"));
        usernameField.sendKeys("standard_user");
        passwordField.sendKeys("secret_sauce");

        // 3. Clicking login button
        driver.findElement(By.cssSelector("input.btn_action")).click();

        // 4. Adding a product to cart
        driver.findElement(By.xpath("//div[@id='inventory_container']//button[@class='btn_primary btn_inventory']")).click();

        // 5. Navigating to cart
        driver.findElement(By.xpath("//div[@id='shopping_cart_container']//a[@class='shopping_cart_link fa-layers fa-fw']")).click();

        // 6. Verifying that cart has a product added
        String productCartQuantity = driver.findElement(By.xpath("//div[@class='cart_quantity']")).getText();
        wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[@class='cart_quantity']")));

        Assert.assertTrue("There should be a quantity for a product via cart", productCartQuantity != "0");

    @After
    public void tearDown() {
        driver.quit();
    }
}