Best Selenium code snippet using org.openqa.selenium.support.decorators.Interface Decorated.onError
Source:WebDriverDecorator.java
...78 * WebDriverDecorator and override some of the following methods:79 * {@link #beforeCall(Decorated, Method, Object[])},80 * {@link #afterCall(Decorated, Method, Object[], Object)},81 * {@link #call(Decorated, Method, Object[])} and82 * {@link #onError(Decorated, Method, Object[], InvocationTargetException)}</li>83 * <li>if you want to modify behavior of a specific class instances only84 * (e.g. behaviour of WebElement instances) you can override one of the85 * overloaded <code>createDecorated</code> methods to create a non-trivial86 * decorator for the specific class only.</li>87 * </ul>88 * Let's consider both approaches by examples.89 * <p>90 * One of the most widely used decorator examples is a logging decorator.91 * In this case we want to add the same piece of logging code before and after92 * each invoked method:93 * <code>94 * public class LoggingDecorator extends WebDriverDecorator {95 * final Logger logger = LoggerFactory.getLogger(Thread.currentThread().getName());96 *97 * @Override98 * public void beforeCall(Decorated<?> target, Method method, Object[] args) {99 * logger.debug("before {}.{}({})", target, method, args);100 * }101 * @Override102 * public void afterCall(Decorated<?> target, Method method, Object[] args, Object res) {103 * logger.debug("after {}.{}({}) => {}", target, method, args, res);104 * }105 * }106 * </code>107 * For the second example let's implement a decorator that implicitly waits108 * for an element to be visible before any click or sendKeys method call.109 * <code>110 * public class ImplicitlyWaitingDecorator extends WebDriverDecorator {111 * private WebDriverWait wait;112 *113 * @Override114 * public Decorated<WebDriver> createDecorated(WebDriver driver) {115 * wait = new WebDriverWait(driver, Duration.ofSeconds(10));116 * return super.createDecorated(driver);117 * }118 * @Override119 * public Decorated<WebElement> createDecorated(WebElement original) {120 * return new DefaultDecorated<>(original, this) {121 * @Override122 * public void beforeCall(Method method, Object[] args) {123 * String methodName = method.getName();124 * if ("click".equals(methodName) || "sendKeys".equals(methodName)) {125 * wait.until(d -> getOriginal().isDisplayed());126 * }127 * }128 * };129 * }130 * }131 * </code>132 * This class is not a pure decorator, it allows to not only add new behavior133 * but also replace "normal" behavior of a WebDriver or derived objects.134 * <p>135 * Let's suppose you want to use JavaScript-powered clicks instead of normal136 * ones (yes, this allows to interact with invisible elements, it's a bad137 * practice in general but sometimes it's inevitable). This behavior change138 * can be achieved with the following "decorator":139 * <code>140 * public class JavaScriptPoweredDecorator extends WebDriverDecorator {141 * @Override142 * public Decorated<WebElement> createDecorated(WebElement original) {143 * return new DefaultDecorated<>(original, this) {144 * @Override145 * public Object call(Method method, Object[] args) throws Throwable {146 * String methodName = method.getName();147 * if ("click".equals(methodName)) {148 * JavascriptExecutor executor = (JavascriptExecutor) getDecoratedDriver().getOriginal();149 * executor.executeScript("arguments[0].click()", getOriginal());150 * return null;151 * } else {152 * return super.call(method, args);153 * }154 * }155 * };156 * }157 * }158 * </code>159 * It is possible to apply multiple decorators to compose behaviors added160 * by each of them. For example, if you want to log method calls and161 * implicitly wait for elements visibility you can use two decorators:162 * <code>163 * WebDriver original = new FirefoxDriver();164 * WebDriver decorated =165 * new ImplicitlyWaitingDecorator().decorate(166 * new LoggingDecorator().decorate(original));167 * </code>168 */169@Beta170public class WebDriverDecorator {171 private Decorated<WebDriver> decorated;172 public final WebDriver decorate(WebDriver original) {173 Require.nonNull("WebDriver", original);174 decorated = createDecorated(original);175 return createProxy(decorated);176 }177 public Decorated<WebDriver> getDecoratedDriver() {178 return decorated;179 }180 public Decorated<WebDriver> createDecorated(WebDriver driver) {181 return new DefaultDecorated<>(driver, this);182 }183 public Decorated<WebElement> createDecorated(WebElement original) {184 return new DefaultDecorated<>(original, this);185 }186 public Decorated<WebDriver.TargetLocator> createDecorated(WebDriver.TargetLocator original) {187 return new DefaultDecorated<>(original, this);188 }189 public Decorated<WebDriver.Navigation> createDecorated(WebDriver.Navigation original) {190 return new DefaultDecorated<>(original, this);191 }192 public Decorated<WebDriver.Options> createDecorated(WebDriver.Options original) {193 return new DefaultDecorated<>(original, this);194 }195 public Decorated<WebDriver.Timeouts> createDecorated(WebDriver.Timeouts original) {196 return new DefaultDecorated<>(original, this);197 }198 public Decorated<WebDriver.Window> createDecorated(WebDriver.Window original) {199 return new DefaultDecorated<>(original, this);200 }201 public Decorated<Alert> createDecorated(Alert original) {202 return new DefaultDecorated<>(original, this);203 }204 public Decorated<VirtualAuthenticator> createDecorated(VirtualAuthenticator original) {205 return new DefaultDecorated<>(original, this);206 }207 public void beforeCall(Decorated<?> target, Method method, Object[] args) {}208 public Object call(Decorated<?> target, Method method, Object[] args) throws Throwable {209 return decorateResult(method.invoke(target.getOriginal(), args));210 }211 public void afterCall(Decorated<?> target, Method method, Object[] args, Object res) {}212 public Object onError(Decorated<?> target, Method method, Object[] args,213 InvocationTargetException e) throws Throwable214 {215 throw e.getTargetException();216 }217 private Object decorateResult(Object toDecorate) {218 if (toDecorate instanceof WebDriver) {219 return createProxy(getDecoratedDriver());220 }221 if (toDecorate instanceof WebElement) {222 return createProxy(createDecorated((WebElement) toDecorate));223 }224 if (toDecorate instanceof Alert) {225 return createProxy(createDecorated((Alert) toDecorate));226 }227 if (toDecorate instanceof VirtualAuthenticator) {228 return createProxy(createDecorated((VirtualAuthenticator) toDecorate));229 }230 if (toDecorate instanceof WebDriver.Navigation) {231 return createProxy(createDecorated((WebDriver.Navigation) toDecorate));232 }233 if (toDecorate instanceof WebDriver.Options) {234 return createProxy(createDecorated((WebDriver.Options) toDecorate));235 }236 if (toDecorate instanceof WebDriver.TargetLocator) {237 return createProxy(createDecorated((WebDriver.TargetLocator) toDecorate));238 }239 if (toDecorate instanceof WebDriver.Timeouts) {240 return createProxy(createDecorated((WebDriver.Timeouts) toDecorate));241 }242 if (toDecorate instanceof WebDriver.Window) {243 return createProxy(createDecorated((WebDriver.Window) toDecorate));244 }245 if (toDecorate instanceof List) {246 return ((List<?>) toDecorate).stream()247 .map(this::decorateResult)248 .collect(Collectors.toList());249 }250 return toDecorate;251 }252 protected final <Z> Z createProxy(final Decorated<Z> decorated) {253 Set<Class<?>> decoratedInterfaces = extractInterfaces(decorated);254 Set<Class<?>> originalInterfaces = extractInterfaces(decorated.getOriginal());255 final InvocationHandler handler = (proxy, method, args) -> {256 try {257 if (method.getDeclaringClass().equals(Object.class)258 || decoratedInterfaces.contains(method.getDeclaringClass())) {259 return method.invoke(decorated, args);260 }261 if (originalInterfaces.contains(method.getDeclaringClass())) {262 decorated.beforeCall(method, args);263 Object result = decorated.call(method, args);264 decorated.afterCall(method, result, args);265 return result;266 }267 return method.invoke(decorated.getOriginal(), args);268 } catch (InvocationTargetException e) {269 return decorated.onError(method, e, args);270 }271 };272 Set<Class<?>> allInterfaces = new HashSet<>();273 allInterfaces.addAll(decoratedInterfaces);274 allInterfaces.addAll(originalInterfaces);275 Class<?>[] allInterfacesArray = allInterfaces.toArray(new Class<?>[0]);276 return (Z) Proxy.newProxyInstance(277 this.getClass().getClassLoader(), allInterfacesArray, handler);278 }279 static Set<Class<?>> extractInterfaces(final Object object) {280 return extractInterfaces(object.getClass());281 }282 private static Set<Class<?>> extractInterfaces(final Class<?> clazz) {283 Set<Class<?>> allInterfaces = new HashSet<>();...
Source:Decorated.java
...22 WebDriverDecorator getDecorator();23 void beforeCall(Method method, Object[] args);24 Object call(Method method, Object[] args) throws Throwable;25 void afterCall(Method method, Object result, Object[] args);26 Object onError(Method method, InvocationTargetException e, Object[] args) throws Throwable;27}...
onError
Using AI Code Generation
1import org.openqa.selenium.By;2import org.openqa.selenium.WebDriver;3import org.openqa.selenium.WebElement;4import org.openqa.selenium.chrome.ChromeDriver;5import org.openqa.selenium.support.ui.ExpectedConditions;6import org.openqa.selenium.support.ui.WebDriverWait;7import org.openqa.selenium.support.decorators.DefaultElementLocatorFactory;8import org.openqa.selenium.support.decorators.Decorated;9import org.openqa.selenium.support.decorators.Decorator;10import org.openqa.selenium.support.decorators.TimeOutDuration;11import org.openqa.selenium.support.pagefactory.ElementLocatorFactory;12import org.openqa.selenium.support.ui.FluentWait;13import org.openqa.selenium.support.ui.Wait;14import java.time.Duration;15import java.util.NoSuchElementException;16import java.util.concurrent.TimeUnit;17public class DecoratorExample {18 public static void main(String[] args) {19 System.setProperty("webdriver.chrome.driver", "/Users/username/Downloads/chromedriver");20 WebDriver driver = new ChromeDriver();21 ElementLocatorFactory locatorFactory = new DefaultElementLocatorFactory(driver);22 Decorator decorator = new Decorator(locatorFactory);23 GoogleSearchPage searchPage = decorator.decorate(driver, GoogleSearchPage.class);24 searchPage.searchBox.sendKeys("Selenium");25 searchPage.searchButton.click();26 }27}28public interface GoogleSearchPage {29 @TimeOutDuration(time = 5, unit = TimeUnit.SECONDS)30 WebElement searchBox = null;31 @TimeOutDuration(time = 5, unit = TimeUnit.SECONDS)32 WebElement searchButton = null;33}34public class GoogleSearchPageDecorator implements GoogleSearchPage {35 public void onError(NoSuchElementException e) {36 System.out.println("Element not found");37 }38}
onError
Using AI Code Generation
1import org.openqa.selenium.support.decorators.Decorator2import org.openqa.selenium.support.decorators.Interface3import org.openqa.selenium.support.decorators.WithTimeout4import org.openqa.selenium.support.decorators.WithTimeout.timeout5import org.openqa.selenium.support.decorators.WithTimeout.timeUnit6import org.openqa.selenium.support.decorators.WithTimeout.timeoutHandler7import org.openqa.selenium.support.decorators.TimeoutHandler8import org.openqa.selenium.support.decorators.TimeoutException9import java.util.concurrent.TimeUnit10class RetryHandler implements TimeoutHandler {11 void handleTimeout(TimeoutException e) {12 }13}14class MyInterface {15 @WithTimeout(timeout: 2, timeUnit: TimeUnit.SECONDS, timeoutHandler: RetryHandler.class)16 void myMethod() {17 }18}19def myInterface = Decorator.getProxy(MyInterface.class, new MyInterface())20myInterface.myMethod()21import org.openqa.selenium.support.decorators.Decorator22import org.openqa.selenium.support.decorators.Interface23import org.openqa.selenium.support.decorators.WithTimeout24import org.openqa.selenium.support.decorators.WithTimeout.timeout25import org.openqa.selenium.support.decorators.WithTimeout.timeUnit26import org.openqa.selenium.support.decorators.WithTimeout.timeoutHandler27import org.openqa.selenium.support.decorators.TimeoutHandler28import org.openqa.selenium.support.decorators.TimeoutException29import java.util.concurrent.TimeUnit30class RetryHandler implements TimeoutHandler {31 void handleTimeout(TimeoutException e) {32 }33}34class MyInterface {35 @WithTimeout(timeout: 2, timeUnit: TimeUnit.SECONDS, timeoutHandler: RetryHandler.class)36 void myMethod() {37 }38}39def myInterface = Decorator.getProxy(MyInterface.class, new MyInterface())40myInterface.myMethod()41import org.openqa.selenium.support.decorators.Decorator42import org.openqa.selenium.support.decorators.Interface43import org.openqa.selenium.support.decorators.WithTimeout44import org.openqa.selenium.support.decorators.WithTimeout.timeout45import org.openqa.selenium.support.decorators.WithTimeout.timeUnit46import org.openqa.selenium.support.decorators.WithTimeout.timeoutHandler47import org.openqa.selenium.support.decorators.TimeoutHandler48import org.openqa.selenium.support.decorators.TimeoutException49import java.util.concurrent.TimeUnit
onError
Using AI Code Generation
1package com.java2novice.selenium;2import org.openqa.selenium.By;3import org.openqa.selenium.WebDriver;4import org.openqa.selenium.WebElement;5import org.openqa.selenium.chrome.ChromeDriver;6import org.openqa.selenium.support.decorators.Decorated;7import org.openqa.selenium.support.decorators.Interface;8import org.openqa.selenium.support.decorators.handler.delegation.DelegatingHandler;9import org.openqa.selenium.support.decorators.handler.delegation.DelegatingHandlerException;10public class MyDecoratedClass {11 public static void main(String a[]) {12 System.setProperty("webdriver.chrome.driver", "path to chromedriver.exe");13 WebDriver driver = new ChromeDriver();14 Decorated<Interface> dec = new Decorated<Interface>(driver, Interface.class,15 new DelegatingHandler<Interface>(Interface.class));16 dec.findElement(By.id("search")).sendKeys("selenium");17 Decorated<WebElement> decEle = new Decorated<WebElement>(driver.findElement(By.id("search")), WebElement.class,18 new DelegatingHandler<WebElement>(WebElement.class));
LambdaTest’s Selenium 4 tutorial is covering every aspects of Selenium 4 testing with examples and best practices. Here you will learn basics, such as how to upgrade from Selenium 3 to Selenium 4, to some advanced concepts, such as Relative locators and Selenium Grid 4 for Distributed testing. Also will learn new features of Selenium 4, such as capturing screenshots of specific elements, opening a new tab or window on the browser, and new protocol adoptions.
Upgrading From Selenium 3 To Selenium 4?: In this chapter, learn in detail how to update Selenium 3 to Selenium 4 for Java binding. Also, learn how to upgrade while using different build tools such as Maven or Gradle and get comprehensive guidance for upgrading Selenium.
What’s New In Selenium 4 & What’s Being Deprecated? : Get all information about new implementations in Selenium 4, such as W3S protocol adaption, Optimized Selenium Grid, and Enhanced Selenium IDE. Also, learn what is deprecated for Selenium 4, such as DesiredCapabilites and FindsBy methods, etc.
Selenium 4 With Python: Selenium supports all major languages, such as Python, C#, Ruby, and JavaScript. In this chapter, learn how to install Selenium 4 for Python and the features of Python in Selenium 4, such as Relative locators, Browser manipulation, and Chrom DevTool protocol.
Selenium 4 Is Now W3C Compliant: JSON Wireframe protocol is retiring from Selenium 4, and they are adopting W3C protocol to learn in detail about the advantages and impact of these changes.
How To Use Selenium 4 Relative Locator? : Selenium 4 came with new features such as Relative Locators that allow constructing locators with reference and easily located constructors nearby. Get to know its different use cases with examples.
Selenium Grid 4 Tutorial For Distributed Testing: Selenium Grid 4 allows you to perform tests over different browsers, OS, and device combinations. It also enables parallel execution browser testing, reads up on various features of Selenium Grid 4 and how to download it, and runs a test on Selenium Grid 4 with best practices.
Selenium Video Tutorials: Binge on video tutorials on Selenium by industry experts to get step-by-step direction from automating basic to complex test scenarios with Selenium.
LambdaTest also provides certification for Selenium testing to accelerate your career in Selenium automation testing.
Get 100 minutes of automation test minutes FREE!!