element.click으로 브라우져의 새 탭이 열렸을 때 driver 제어 방법

 element.click 으로 같은 화면에서 UI가 갱신되는 게 아니라 새 탭이 열렸을 경우,

selenium driver에 알려줘야 한다.

그렇지 않으면 기존에 오픈 된 브라우져의 화면에서 element를 찾게 되어 no such element 에러 메시지를 보게 된다.

[How to]

//driver 제어를 위한 현재 열려있는 브라우져 확인
String parentWindow = driver.getWindowHandle();

element.click();


String childWindow = null;
for(String childs: driver.getWindowHandles()){
    if(!childs.equals(parentWindow)){
        childWindow = childs;
        break;
    }
}
driver.switchTo().window(childWindow);

Selenium WebDriver setting

public class LaunchWebDriver {

    private static final Logger logger = LoggerFactory.getLogger(UserPageTest.class);

    WebDriver driver;

    public LaunchWebDriver(WebDriver driver) {
        this.driver = driver;
        PageFactory.initElements(driver, this);
    }

    public WebDriver launchWebDriverMode(String headlessOnOff) {

        Path path = Paths.get("");
        String pathStr = path.toAbsolutePath().toString(); 
        logger.debug("pathStr={}", pathStr);

  /* MAC 과 WINDOWS chromedriver 분기 */
        if (isWindows()) {
            System.setProperty("webdriver.chrome.driver", pathStr + "//driver//chromedriver.exe");
        } else if (isMac()) {
            System.setProperty("webdriver.chrome.driver", pathStr + "//driver//chromedriver");
        } else {
            logger.error("지원하지 않는 OS 입니다.");
            return null;
        }

        ChromeOptions co = new ChromeOptions();
        logger.debug("computername={}", System.getenv("computername"));
        /* 공통 ChromeOptions 값. */
        co.addArguments("start-maximized");
        co.addArguments("enable-automation");
        co.addArguments("--disable-gpu");
        if (isWindows() && "NG-BF".equals(System.getenv("computername"))) {
            /* Jenkins 서버(windows)는 항상 headless 모드이다 (java.awt.headless = true) */
            logger.debug("headless Mode : NG-BF is Always headlessMode");
            /* jenkins 에만 추가되는 ChromeOptions 값. */
            co.addArguments("--no-sandbox");

        } else {
            if ("On".equals(headlessOnOff)) { // On / Off
                /* headless chrome */
                co.addArguments("--headless");
   }
        }

        driver = new ChromeDriver(co);

        driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS); // 기본 대기 시간
        driver.manage().window().maximize();
        return driver;
    }

    public static boolean isWindows() {
        return (OS.isFamilyWindows());
    }
    public static boolean isMac() {
        return (OS.isFamilyMac());
    }
}

public abstract class BaseTest {
    public WebDriver driver;
    public LaunchWebDriver launchWebDriver;

    @BeforeClass
    public void setUp(){
        System.out.println("*** before class ****");
        String headlessOnOff ="On"; // headless = On or Off
        launchWebDriver = new LaunchWebDriver(driver);
        driver = launchWebDriver.launchWebDriverMode(headlessOnOff);
        if(driver == null){
            Assert.assertTrue(false);
        }
    }

    @AfterClass
    public void tearDown(){
        System.out.println("*** after class ****");
        if( driver != null)
            driver.quit();
    }

    @AfterTest
    public void afterTest() throws IOException {
        System.out.println("*** after test ****");
        if( LaunchWebDriver.isWindows() ){
            Runtime.getRuntime().exec("taskkill /F /IM chromedriver.exe /T");
        }
    }
}

Selenium implicitly wait & explicitly wait

[implicitly wait]
해당 페이지에 속한 element가 모두 로딩될 때 까지 기다리는 방식

syntax

driver.manage().timeouts().implicitlyWait(TimeOut, TimeUnit.SECONDS);

example

driver = new ChromeDriver(co);

driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS);
driver.manage().window().maximize();
return driver;

[explicitly wait]
특정 element가 나타날 때 까지 기다려주는 방식

syntax

WebDriverWait wait = new WebDriverWait(WebDriverReference, TimeOut);

exmaple

driver = new ChromeDriver();
WebDriverWait wait = new WebDriverWait(driver, 20);
....
WebElement element;
element = wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath(",,,")));
element.click();

ChromeOptions argument

ChromeOptions argument 설명

https://peter.sh/experiments/chromium-command-line-switches/

TestNG에 ExtentReport 적용하기

1. pom.xml dependency 추가

<dependency>    
  <groupId>com.aventstack</groupId>    
  <artifactId>extentreports</artifactId>    
  <version>3.1.5</version>
</dependency>

2. ExtentManager 추가

public class ExtentManager {
    private static ExtentReports extent;

    public static ExtentReports getInstance() {
        if (extent == null)
            createInstance();
        return extent;
    }

    //Create an extent report instance
    public static ExtentReports createInstance() {
        String reportFile = new File("target/result.html").getAbsolutePath();
        ExtentHtmlReporter htmlReporter = new ExtentHtmlReporter(reportFile);
        htmlReporter.setAppendExisting(true);
        htmlReporter.config().setTestViewChartLocation(ChartLocation.BOTTOM);
        htmlReporter.config().setChartVisibilityOnOpen(true);
        htmlReporter.config().setTheme(Theme.STANDARD);
        htmlReporter.config().setDocumentTitle(reportFile);
        htmlReporter.config().setEncoding("UTF-8");
        htmlReporter.config().setReportName(reportFile);

        extent = new ExtentReports();
        extent.attachReporter(htmlReporter);
        extent.setSystemInfo("Environment", "QA");
        TestData testData = new TestData();
        extent.setSystemInfo("Host Name", testData.getTestData().getUri());
        return extent;
    }
}

3. TestListener 추가

public class TestListner implements ITestListener {
    //Extent Report Declarations
    private static final Logger logger = LoggerFactory.getLogger(TestListner.class);
    private static ExtentReports extent = ExtentManager.createInstance();
    private static ThreadLocal<ExtentTest> test = new ThreadLocal<>();

    @Override
    public synchronized void onStart(ITestContext context) {
        logger.debug("Test Suite started!");
    }

    @Override
    public synchronized void onFinish(ITestContext context) {
        logger.debug("Test Suite is finished!");
        extent.flush();
    }

    @Override
    public synchronized void onTestStart(ITestResult result) {
        logger.debug(result.getMethod().getMethodName() + " started!");
        ExtentTest extentTest = extent.createTest(result.getMethod().getMethodName(),result.getMethod().getDescription());
        extentTest.assignCategory(result.getTestClass().getRealClass().getSimpleName());
        test.set(extentTest);
    }

    @Override
    public synchronized void onTestSuccess(ITestResult result) {
        logger.debug(result.getMethod().getMethodName() + " passed!");
        test.get().pass("Test passed");
    }

    @Override
    public synchronized void onTestFailure(ITestResult result) {
        logger.debug(result.getMethod().getMethodName() + " failed!");
        test.get().fail(result.getThrowable());
    }

    @Override
    public synchronized void onTestSkipped(ITestResult result) {
        logger.debug(result.getMethod().getMethodName() + " skipped!");
        test.get().skip(result.getThrowable());
    }

    @Override
    public void onTestFailedButWithinSuccessPercentage(ITestResult result) {
        logger.debug("onTestFailedButWithinSuccessPercentage for " + result.getMethod().getMethodName());
    }
}

4. testng.xml에 추가

<suite name="TestNG Suite Name">
    <listeners>
        <listener class-name="com.xxxx.utils.listners.TestListner" />    
    </listeners>
    <test name="full_test">
         <packages>
             <package name="com.xxx.test.*" />
         </packages>
     </test>
</suite>