Selenium implicitly-wait and explicitly-wait

implicitly-wait : 브라우져 전체 요소가 로드될 때 까지 기다린다.
explicitly-wait : 특정 요소가 로드될 때 까지 기다린다.

implicitly wait

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import java.util.concurrent.TimeUnit; import org.openqa.selenium.*; import org.openqa.selenium.firefox.FirefoxDriver; import org.testng.annotations.AfterMethod; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test; public class WaitTest { private WebDriver driver; private String baseUrl; private WebElement element; @BeforeMethod public void setUp() throws Exception { driver = new FirefoxDriver(); baseUrl = "http://www.google.com"; driver.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS); } @Test public void testUntitled() throws Exception { driver.get(baseUrl); element = driver.findElement(By.id("lst-ib")); element.sendKeys("Selenium WebDriver Interview questions"); element.sendKeys(Keys.RETURN); List<WebElement> list = driver.findElements(By.className("_Rm")); System.out.println(list.size()); } @AfterMethod public void tearDown() throws Exception { driver.quit(); } }

Explicitly wate

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import java.util.concurrent.TimeUnit; import org.openqa.selenium.By; import org.openqa.selenium.Keys; import org.openqa.selenium.WebDriver; import org.openqa.selenium.WebElement; import org.openqa.selenium.firefox.FirefoxDriver; import org.openqa.selenium.support.ui.ExpectedConditions; import org.openqa.selenium.support.ui.WebDriverWait; import org.testng.annotations.AfterMethod; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test; public class ExpectedConditionExample { // created reference variable for WebDriver WebDriver driver; @BeforeMethod public void setup() throws InterruptedException { // initializing driver variable using FirefoxDriver driver=new FirefoxDriver(); // launching gmail.com on the browser driver.get("https://gmail.com"); // maximized the browser window driver.manage().window().maximize(); driver.manage().timeouts().implicitlyWait(10, TimeUnit.SECONDS); } @Test public void test() throws InterruptedException { // saving the GUI element reference into a "element" variable of WebElement type WebElement element = driver.findElement(By.id("Email")); // entering username element.sendKeys("dummy@gmail.com"); element.sendKeys(Keys.RETURN); // entering password driver.findElement(By.id("Passwd")).sendKeys("password"); // clicking signin button driver.findElement(By.id("signIn")).click(); // explicit wait - to wait for the compose button to be click-able WebDriverWait wait = new WebDriverWait(driver,30); wait.until(ExpectedConditions.visibilityOfElementLocated(By.xpath("//div[contains(text(),'COMPOSE')]"))); // click on the compose button as soon as the "compose" button is visible driver.findElement(By.xpath("//div[contains(text(),'COMPOSE')]")).click(); } @AfterMethod public void teardown() { // closes all the browser windows opened by web driver driver.quit(); } }

Fluent wait

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Wait wait = new FluentWait(WebDriver reference) .withTimeout(timeout, SECONDS) .pollingEvery(timeout, SECONDS) .ignoring(Exception.class); WebElement foo = wait.until(new Function<WebDriver, WebElement>() { public WebElement applyy(WebDriver driver) { return driver.findElement(By.id("foo")); }});