LoginTest

import static org.junit.Assert.assertEquals;
import static org.testng.Assert.assertTrue;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.chrome.ChromeDriver;
import org.openqa.selenium.support.PageFactory;

import rs.ac.uns.kts.pages.HomePage;
import rs.ac.uns.kts.pages.SingInPage;

public class LoginTest {

    // Add driver
    private WebDriver browser;

    // Add pages
    private HomePage homePage;
    private SingInPage singInPage;

    // Selenium setup
    @Before
    public void setupSelenium() {
        // instantiate browser
        System.setProperty("webdriver.chrome.driver", "chromedriver97.exe");
        browser = new ChromeDriver();
        // maximize window
        browser.manage().window().maximize();
        // navigate
        browser.navigate().to("http://automationpractice.com/index.php");

        homePage = PageFactory.initElements(browser, HomePage.class);
        singInPage = PageFactory.initElements(browser, SingInPage.class);
    }

    @Test
    public void singInTest() {
        homePage.singInLinkClick();

        assertEquals("http://automationpractice.com/index.php?controller=authentication&back=my-account",
                browser.getCurrentUrl());

        // all fields empty
        singInPage.submitBtnClick();
        assertTrue(singInPage.errorMessagePresent("An email address required."));

        // set invalid email
        singInPage.setEmailInput("aaa");
        singInPage.submitBtnClick();
        assertTrue(singInPage.errorMessagePresent("Invalid email address."));

        // set email
        singInPage.setEmailInput("urkepetric1999@gmail.com");
        singInPage.submitBtnClick();
        assertTrue(singInPage.errorMessagePresent("Password is required."));

        // set wrong pass
        singInPage.setPasswordInput("wrong");
        singInPage.submitBtnClick();
        assertTrue(singInPage.errorMessagePresent("Authentication failed."));

        // set correct pass
        singInPage.setPasswordInput("uros123");
        singInPage.submitBtnClick();

        assertEquals("http://automationpractice.com/index.php?controller=my-account", browser.getCurrentUrl());

    }

    // Selenium quit
    @After
    public void closeSelenium() {
        // Shutdown the browser
        browser.quit();
    }
}