Java tutorial
/* * #%L * share-po * %% * Copyright (C) 2005 - 2016 Alfresco Software Limited * %% * This file is part of the Alfresco software. * If the software was purchased under a paid Alfresco license, the terms of * the paid license agreement will prevail. Otherwise, the software is * provided under the following open source license terms: * * Alfresco is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Alfresco is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with Alfresco. If not, see <http://www.gnu.org/licenses/>. * #L% */ package org.alfresco.po; import com.google.common.base.Predicate; import org.alfresco.po.exception.ElementExpectedConditions; import org.alfresco.po.exception.PageOperationException; import org.alfresco.po.exception.PageRenderTimeException; import org.alfresco.po.share.FactoryPage; import org.alfresco.po.share.util.PageUtils; import org.apache.commons.lang.StringUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.openqa.selenium.*; import org.openqa.selenium.interactions.Action; import org.openqa.selenium.interactions.Actions; import org.openqa.selenium.support.FindBy; import org.openqa.selenium.support.ui.ExpectedCondition; import org.openqa.selenium.support.ui.ExpectedConditions; import org.openqa.selenium.support.ui.FluentWait; import org.openqa.selenium.support.ui.WebDriverWait; import org.springframework.beans.factory.annotation.Autowired; import ru.yandex.qatools.htmlelements.element.HtmlElement; import java.lang.annotation.Annotation; import java.lang.reflect.Field; import java.util.ArrayList; import java.util.List; import java.util.concurrent.TimeUnit; /** * Abstract that holds all common functions and helper method * that applies to components of a page. These building blocks * constructs the page and interacts with the dom using selenium. * * @author Michael Suzuki * */ public abstract class PageElement extends HtmlElement implements WebDriverAware { private Log logger = LogFactory.getLog(PageElement.class); private static final String LOCATOR_REQUIRED_ERR_MSG = "A locator is required"; protected long defaultWaitTime = 4000; protected long maxPageLoadingTime = 30000; @Autowired protected FactoryPage factoryPage; protected WebDriver driver; public void setWebDriver(WebDriver driver) { this.driver = driver; } public WebDriver getWebDriver() { return driver; } /** * Checks if page event action completed. For further information see: * https: * //dvcs.w3.org/hg/webperf/raw-file/tip/specs/NavigationTiming/Overview * .html * * @return String time took to complete event */ public String domEventCompleted() { String js = "try{window.performance = window.performance || window.mozPerformance || window.msPerformance || window.webkitPerformance || {};" + "return(parseInt(window.performance.timing.domContentLoadedEventEnd)-parseInt(window.performance.timing.navigationStart));}catch(e){}"; Object val = ((JavascriptExecutor) driver).executeScript(js); return val.toString(); } public void navigate(String... url) { driver.navigate().to(url[0]); } public boolean isDisplayed(WebElement element) { try { return element.isDisplayed(); } catch (Exception e) { //Ignore. } return false; } public boolean isDisplayed(By by) { try { return driver.findElement(by).isDisplayed(); } catch (Exception e) { } return false; } public HtmlPage getCurrentPage() { return factoryPage.getPage(driver); } /** * Basic render that checks if the page has rendered. * * @param timer {@link RenderTime} */ public void basicRender(RenderTime timer) { try { timer.start(); isRenderComplete(timer.timeLeft()); } finally { timer.end(); } } /** * Verify if loading of the page is complete using java script to validate state of the HTML DOM. * * @param waitTime max time to look for an element * @return true if page has been loaded */ public boolean isRenderComplete(final long waitTime) { FluentWait<String> fluentWait = new FluentWait<String>("complete"); fluentWait.pollingEvery(100, TimeUnit.MILLISECONDS); fluentWait.withTimeout(waitTime, TimeUnit.MILLISECONDS); try { fluentWait.until(new Predicate<String>() { @Override public boolean apply(String input) { String response = (String) executeJavaScript("return document.readyState;"); return response.equals(input); } }); return true; } catch (TimeoutException te) { } return false; } /** * Injects java script directly to the page to invoke a change on the page's java script * * @param js String script */ public Object executeJavaScript(final String js) { if (js == null || js.isEmpty()) { throw new IllegalArgumentException("JavaScript is required"); } return ((JavascriptExecutor) driver).executeScript(js); } /** * Execute java script in resepect of object (i.e. WebElement) * @param js String script */ public Object executeJavaScript(final String js, Object... args) { if (js == null || js.isEmpty()) { throw new IllegalArgumentException("JS script is required"); } return ((JavascriptExecutor) driver).executeScript(js, args); } /** * Helper method to find a {@link WebElement} with a time limit in milliseconds. During the wait period it will check for the element every 100 millisecond. * * @param by {@link By} criteria to search by * @param limit millisecond time limit * @return {@link WebElement} HTML element */ public WebElement findAndWait(final By by, final long limit) { return findAndWait(by, limit, 100); } /** * Helper method to find a {@link WebElement} with a time limit in milliseconds within the page element. * During the wait period it will check for the element every 100 millisecond. * * @param by {@link By} criteria to search by * @param limit millisecond time limit * @return {@link WebElement} HTML element */ public WebElement findAndWaitInNestedElement(final By by, final long limit) { return findAndWaitInNestedElement(by, limit, 100); } /** * Helper method to find a {@link WebElement} with a time limit in milliseconds. During the wait period it will check for the element every 100 millisecond. * * @param by {@link By} criteria to search by * @param limit time limit * @param interval polling frequency * @return {@link WebElement} HTML element */ public WebElement findAndWait(final By by, final long limit, final long interval) { FluentWait<By> fluentWait = new FluentWait<By>(by); fluentWait.pollingEvery(interval, TimeUnit.MILLISECONDS); fluentWait.withTimeout(limit, TimeUnit.MILLISECONDS); try { fluentWait.until(new Predicate<By>() { public boolean apply(By by) { try { return driver.findElement(by).isDisplayed(); } catch (NoSuchElementException ex) { return false; } } }); return driver.findElement(by); } catch (RuntimeException re) { throw new TimeoutException("Unable to locate element " + by); } } /** * Helper method to find a {@link WebElement} with a time limit in milliseconds. During the wait period it will check for the element every 100 millisecond. * * @param by {@link By} criteria to search by * @param limit time limit * @param interval polling frequency * @return {@link WebElement} HTML element */ public WebElement findAndWaitInNestedElement(final By by, final long limit, final long interval) { FluentWait<By> fluentWait = new FluentWait<By>(by); fluentWait.pollingEvery(interval, TimeUnit.MILLISECONDS); fluentWait.withTimeout(limit, TimeUnit.MILLISECONDS); fluentWait.until(new Predicate<By>() { public boolean apply(By by) { try { return getWrappedElement().findElement(by).isDisplayed(); } catch (NoSuchElementException ex) { return false; } } }); return getWrappedElement().findElement(by); } /** * Helper method to find and return a slow loading {@link WebElement}. * * @param criteria By search criteria * @return {@link WebElement} HTML element */ public WebElement findAndWait(final By criteria) { return findAndWait(criteria, defaultWaitTime); } public long getDefaultWaitTime() { return defaultWaitTime; } /** * Wait until the element is visible for the specified amount of time. * @param locator CSS Locator * @param timeOutInSeconds Timeout In Seconds */ public void waitForElement(By locator, long timeOutInSeconds) { if (locator == null) { throw new IllegalArgumentException(LOCATOR_REQUIRED_ERR_MSG); } WebDriverWait wait = new WebDriverWait(driver, timeOutInSeconds); wait.until(ExpectedConditions.visibilityOfElementLocated(locator)); } /** * Wait until the Clickable of given Element for given seconds. * * @param locator CSS Locator * @param timeOutInSeconds Timeout In Seconds */ public void waitUntilElementClickable(By locator, long timeOutInSeconds) { if (locator == null) { throw new IllegalArgumentException(LOCATOR_REQUIRED_ERR_MSG); } WebDriverWait wait = new WebDriverWait(driver, timeOutInSeconds); wait.until(ExpectedConditions.elementToBeClickable(locator)); } /** * Wait until the invisibility of given Element for given seconds. * @param locator CSS Locator * @param timeOutInSeconds Timeout In Seconds */ public void waitUntilElementDisappears(By locator, long timeOutInSeconds) { if (locator == null) { throw new IllegalArgumentException(LOCATOR_REQUIRED_ERR_MSG); } WebDriverWait wait = new WebDriverWait(driver, timeOutInSeconds); wait.until(ExpectedConditions.invisibilityOfElementLocated(locator)); } /** * Wait until the invisibility of given Element for given seconds. * * @param locator CSS Locator * @param text - The Text to find in the Locator * @param timeOutInSeconds Timeout In Seconds */ public void waitUntilNotVisible(By locator, String text, long timeOutInSeconds) { if (locator == null) { throw new IllegalArgumentException(LOCATOR_REQUIRED_ERR_MSG); } if (text == null || text.isEmpty()) { throw new IllegalArgumentException("Text value is required"); } WebDriverWait wait = new WebDriverWait(driver, timeOutInSeconds); wait.until(ExpectedConditions.invisibilityOfElementWithText(locator, text)); } /** * Wait until the visibility of given Element for given seconds. * * @param locator CSS Locator * @param timeOutInSeconds Timeout In Seconds */ public void waitUntilElementPresent(By locator, long timeOutInSeconds) { if (locator == null) { throw new IllegalArgumentException(LOCATOR_REQUIRED_ERR_MSG); } WebDriverWait wait = new WebDriverWait(driver, timeOutInSeconds); wait.until(ExpectedConditions.presenceOfAllElementsLocatedBy(locator)); } /** * Wait Until element successfully deleting from DOM. * * @param locator - CSS Locator * @param timeOutInSeconds - Timeout In Seconds */ public void waitUntilElementDeletedFromDom(By locator, long timeOutInSeconds) { WebDriverWait wait = new WebDriverWait(driver, timeOutInSeconds); try { wait.until(ExpectedConditions.stalenessOf(driver.findElement(locator))); } catch (NoSuchElementException e) { /* if element already not in DOM! */} } /** * Wait document.readyState to return completed. * @param timeOutInSeconds time duration */ public void waitForPageLoad(long timeOutInSeconds) { ExpectedCondition<Boolean> expectation = new ExpectedCondition<Boolean>() { public Boolean apply(WebDriver driver) { return ((JavascriptExecutor) driver).executeScript("return document.readyState").equals("complete"); } }; try { new WebDriverWait(driver, timeOutInSeconds).until(expectation); } catch (TimeoutException exception) { } } /** * Helper method to find and return a slow loading collection of {@link WebElement}. * * @param criteria {@link By} search criteria * @param waitTime milliseconds to wait * @return Collection of {@link WebElement} HTML elements */ public List<WebElement> findAndWaitForElements(final By criteria, final long waitTime) { if (criteria == null) { throw new IllegalArgumentException("By criteria is required"); } findAndWait(criteria, waitTime); return driver.findElements(criteria); } /** * Helper method to find and return a slow loading collection of {@link WebElement}. * * @param criteria {@link By} search criteria * @return Collection of {@link WebElement} HTML elements */ public List<WebElement> findAndWaitForElements(final By criteria) { if (criteria == null) { throw new IllegalArgumentException("By criteria is required"); } findAndWait(criteria, getDefaultWaitTime()); return driver.findElements(criteria); } /** * Helper method to find and return a slow loading {@link WebElement} by id. * * @param id String identifier * @return {@link WebElement} HTML element */ public WebElement findAndWaitById(final String id) { if (StringUtils.isEmpty(id)) { throw new IllegalArgumentException("element id is required"); } By criteria = By.id(id); findAndWait(criteria, defaultWaitTime); return driver.findElement(criteria); } /** * Drag the source element and drop into target element. * * @param source - Source Element * @param target - Target Element */ public void dragAndDrop(WebElement source, WebElement target) { PageUtils.checkMandotaryParam("source element", source); PageUtils.checkMandotaryParam("target element", target); Actions builder = new Actions(driver); Action dragAndDrop = builder.clickAndHold(source).moveToElement(target).release(target).build(); dragAndDrop.perform(); } /** * Recreating the action of hovering over a particular HTML element on a page. * * @param element {@link WebElement} target */ public void mouseOver(WebElement element) { if (element == null) { throw new IllegalArgumentException("A web element is required"); } new Actions(driver).moveToElement(element).perform(); } /** * This function will return list of visible elements found with the specified selector * * @param selector {@link By} identifier * @return {@link List} of {@link WebElement} */ public List<WebElement> findDisplayedElements(By selector) { PageUtils.checkMandotaryParam("Locator", selector); List<WebElement> elementList = driver.findElements(selector); List<WebElement> displayedElementList = new ArrayList<WebElement>(); for (WebElement elementSelected : elementList) { if (elementSelected.isDisplayed()) { displayedElementList.add(elementSelected); } } return displayedElementList; } public WebElement findFirstDisplayedElement(By selector) { try { List<WebElement> elementList = findDisplayedElements(selector); if (elementList != null && elementList.size() > 0) { return elementList.get(0); } } catch (NoSuchElementException e) { throw new NoSuchElementException("Not able find element for give locator " + e); } throw new NoSuchElementException( "Not able find any displayed elemment for given locator " + selector.toString()); } public void waitUntilVisible(By locator, String text, long timeOutInSeconds) { if (locator == null) { throw new IllegalArgumentException(LOCATOR_REQUIRED_ERR_MSG); } if (text == null || text.isEmpty()) { throw new IllegalArgumentException("Text value is required"); } WebDriverWait wait = new WebDriverWait(driver, timeOutInSeconds); wait.until(ExpectedConditions.textToBePresentInElementLocated(locator, text)); } /** * Double click on an element * * @param element {@link WebElement} */ public void doubleClickOnElement(WebElement element) { PageUtils.checkMandotaryParam("doubleclick element", element); Actions builder = new Actions(driver); Action doubleClick = builder.doubleClick(element).build(); doubleClick.perform(); } /** * Wait until the invisibility of given Element for given seconds. * * @param locator CSS Locator * @param text - The Text to find in the Locator * @param timeOutInSeconds Timeout In Seconds */ public void waitUntilNotVisibleWithParitalText(By locator, String text, long timeOutInSeconds) { if (locator == null) { throw new IllegalArgumentException(LOCATOR_REQUIRED_ERR_MSG); } if (text == null || text.isEmpty()) { throw new IllegalArgumentException("Text value is required"); } WebDriverWait wait = new WebDriverWait(driver, timeOutInSeconds); wait.until(ElementExpectedConditions.invisibilityOfElementWithPartialText(driver, locator, text)); } /** * Helper method to find a {@link WebElement} with a time limit in * milliseconds. During the wait period it will check for the element every * 100 millisecond. If the element is not displayed, refresh the page. * * @param by {@link By} criteria to search by * @return {@link WebElement} */ public WebElement findAndWaitWithRefresh(final By by, final long limit) { if (null == by) { throw new IllegalArgumentException("A search By criteria is required"); } FluentWait<By> fluentWait = new FluentWait<By>(by); fluentWait.pollingEvery(100, TimeUnit.MILLISECONDS); fluentWait.withTimeout(limit, TimeUnit.MILLISECONDS); fluentWait.ignoring(NoSuchElementException.class); fluentWait.until(new Predicate<By>() { public boolean apply(By by) { try { return driver.findElement(by).isDisplayed(); } catch (NoSuchElementException ex) { driver.navigate().refresh(); return false; } } }); return driver.findElement(by); } /** * Returns true if the element is displayed else false. * @param locator {@link By} query * @return boolean true if displayed */ public boolean isElementDisplayed(By locator) { if (locator == null) { throw new IllegalArgumentException("Element locator strategy is required"); } try { return driver.findElement(locator).isDisplayed(); } catch (NoSuchElementException nse) { // no log needed due to negative cases. } catch (TimeoutException toe) { // no log needed due to negative cases. } catch (StaleElementReferenceException ste) { // no log needed due to negative cases. } return false; } /** * Recreating the action of click on a sub element that should be displayed once parent element is selected. * The coordinates provided specify the offset from the top-left corner of these elements. * * @param parentElement {@link WebElement} parentElement * @param parentXOffset {@link int} x coordinate for parentElement * @param parentYOffset {@link int} y coordinate for parentElement * @param subElement {@link WebElement} subElement * @param subXOffset {@link int} x coordinate for subElement * @param subYOffset {@link int} y coordinate for subElement */ public void clickOnSubElementOffSet(WebElement parentElement, int parentXOffset, int parentYOffset, WebElement subElement, int subXOffset, int subYOffset) { if (parentElement == null || subElement == null) { throw new IllegalArgumentException("A web elements are required"); } else { (new Actions(this.driver)).moveToElement(parentElement, parentXOffset, parentYOffset) .moveToElement(subElement, subXOffset, subYOffset).click().perform(); } } public void clearAndType(By by, String value) { if (by == null) { throw new IllegalArgumentException("Element Locator Can't be null."); } if (value == null) { throw new IllegalArgumentException("Value Can't be null."); } try { WebElement element = driver.findElement(by); element.click(); element.clear(); element.sendKeys(value); } catch (TimeoutException e) { throw new PageOperationException("Not able to find the element", e); } } public WebElement findByKey(final String id) { By criteria = By.id(getValue(id)); return driver.findElement(criteria); } public final String getValue(final String key) { PageUtils.checkMandotaryParam("key", key); return factoryPage.getValue(key); } /** * Opens the new tab in the same browser. */ public void createNewTab() { driver.findElement(By.cssSelector("body")).sendKeys(getOsKey() + "t"); } /** * Returns COMMAND {@link Keys} if the OS is MAC OS X else CONTROL key. * @return {@link Keys} */ private Keys getOsKey() { Keys keys = Keys.CONTROL; String osName = System.getProperty("os.name"); if (osName != null && !osName.isEmpty() && osName.toLowerCase().startsWith("mac")) { keys = Keys.COMMAND; } return keys; } /** * Drag and drop element by x,y * @param source html element * @param x coordinate * @param y coordinate */ public void dragAndDrop(WebElement source, int x, int y) { PageUtils.checkMandotaryParam("source element", source); Actions builder = new Actions(driver); Action dragAndDrop = builder.dragAndDropBy(source, x, y).build(); dragAndDrop.perform(); } /** * Closes the recently opened tab in the same browser. */ public void closeTab() { driver.findElement(By.cssSelector("body")).sendKeys(getOsKey() + "w"); } /** * Waits for given {@link ElementState} of all render elements when rendering a page. * If the given element not reach element state, it will time out and throw {@link TimeoutException}. If operation to find all elements * times out a {@link PageRenderTimeException} is thrown * * @param renderTime render timer * @param elements collection of {@link RenderElement} */ public void elementRender(RenderTime renderTime, RenderElement... elements) { if (renderTime == null) { throw new UnsupportedOperationException("RenderTime is required"); } if (elements == null || elements.length < 1) { throw new UnsupportedOperationException("RenderElements are required"); } for (RenderElement element : elements) { try { renderTime.start(); long waitSeconds = TimeUnit.MILLISECONDS.toSeconds(renderTime.timeLeft()); element.render(driver, waitSeconds); } catch (TimeoutException e) { throw new PageRenderTimeException("element not rendered in time.", e); } finally { renderTime.end(element.getLocator().toString()); } } } /** * Waits for given {@link ElementState} of all render elements when rendering a page. * If the given element not reach element state, it will time out and throw {@link TimeoutException}. * If operation to find all elements times out a {@link PageRenderTimeException} is thrown * Renderable elements will be scanned from class using {@link RenderWebElement} annotation. * * @param renderTime render timer * @throws IllegalAccessException * @throws IllegalArgumentException */ public void webElementRender(RenderTime renderTime) { if (renderTime == null) { throw new UnsupportedOperationException("RenderTime is required"); } List<RenderElement> elements = new ArrayList<RenderElement>(); Field[] fields = this.getClass().getDeclaredFields(); for (Field field : fields) { if (field.isAnnotationPresent(RenderWebElement.class)) { Class<?> type = field.getType(); field.setAccessible(true); Object fieldVal = null; try { fieldVal = field.get(this); } catch (IllegalArgumentException | IllegalAccessException e) { logger.error("Unable to set field", e); } //Handle page elements, extracts the @FindBy from the component. if (PageElement.class.isAssignableFrom(type)) { Annotation a = type.getAnnotation(FindBy.class); if (a != null) { try { By by = buildFromFindBy((FindBy) a); elements.add(new RenderElement(by, ElementState.VISIBLE)); } catch (Exception ex) { } } } if (type.equals(By.class)) { /*FIXME Below is the old way which we need to remove and use the web element instead. *This is kept until we refactor the sharepo to use webelement instead of *By.class. * @RenderWebelement By css = By.cssSelector("div.t"); * to * @RenderWebelement WebElement css; * */ RenderWebElement webElement = (RenderWebElement) field.getAnnotation(RenderWebElement.class); elements.add(new RenderElement((By) fieldVal, webElement.state())); } else { Annotation[] list = field.getDeclaredAnnotations(); By by = null; for (Annotation a : list) { if (a instanceof FindBy) { by = extractSelector((FindBy) a); } } if (by != null) { elements.add(new RenderElement(by, ElementState.VISIBLE)); } } } } if (!elements.isEmpty()) { elementRender(renderTime, elements.toArray(new RenderElement[elements.size()])); } } /** * Extract the selector query from annotation. * @param findBy * @return By selector with value from annotation. */ private By extractSelector(FindBy findBy) { if (!StringUtils.isEmpty(findBy.css())) { return By.cssSelector(findBy.css()); } if (!StringUtils.isEmpty(findBy.id())) { return By.id(findBy.id()); } if (!StringUtils.isEmpty(findBy.xpath())) { return By.xpath(findBy.xpath()); } throw new PageOperationException("Select by is not supported" + findBy.toString()); } private By buildFromFindBy(FindBy findBy) { if (!"".equals(findBy.className())) { return By.className(findBy.className()); } if (!"".equals(findBy.css())) { return By.cssSelector(findBy.css()); } if (!"".equals(findBy.id())) { return By.id(findBy.id()); } if (!"".equals(findBy.linkText())) { return By.linkText(findBy.linkText()); } if (!"".equals(findBy.name())) { return By.name(findBy.name()); } if (!"".equals(findBy.partialLinkText())) { return By.partialLinkText(findBy.partialLinkText()); } if (!"".equals(findBy.tagName())) { return By.tagName(findBy.tagName()); } if (!"".equals(findBy.xpath())) { return By.xpath(findBy.xpath()); } // Fall through return null; } public void setDefaultWaitTime(long defaultWaitTime) { this.defaultWaitTime = defaultWaitTime; } public void setMaxPageLoadingTime(long maxPageLoadingTime) { this.maxPageLoadingTime = maxPageLoadingTime; } }