What types of frameworks for UI testing do you know?

• Data-Driven Framework: Test data is separated from test logic. Tests are executed with various data sets from external sources (Excel, databases, XML). Simplifies testing with multiple input scenarios.
• Keyword-Driven Framework: Actions and objects involved in the test are represented as "keywords". Tests are built by combining these keywords, often in tabular form. Suitable for non-technical users.
• Hybrid Framework: A combination of two or more approaches (often Data-Driven and Keyword-Driven) for maximum convenience, flexibility, and scalability. The most common type.
• Page Object Model (POM) Framework: A design pattern where each user interface element (page or component) is represented by a separate class. Interaction with UI elements occurs through methods of these classes. Improves readability, maintainability, and reusability of test code.

// Example of Page Object Model
public class LoginPage {
    WebElement usernameField;
    WebElement passwordField;
    WebElement loginButton;

    public LoginPage(WebDriver driver) {
        // Initialization of elements
    }

    public void enterCredentials(String username, String password) {
        usernameField.sendKeys(username);
        passwordField.sendKeys(password);
    }

    public void clickLogin() {
        loginButton.click();
    }
}

• Behavior-Driven Development (BDD) Framework: Focuses on system behavior. Tests are written in simple, understandable language (Gherkin), describing steps and expected results from the user's perspective. Facilitates collaboration among QA, developers, and business analysts. Tools: Cucumber, SpecFlow.

// Example of Gherkin (BDD)
Feature: User login

  Scenario: Successful login with correct credentials
    Given the user is on the login page
    When the user enters "valid_user" in the "login" field
    And the user enters "valid_password" in the "password" field
    And the user clicks the "Login" button
    Then the user is redirected to the main page