Validate all page HTML and avoid significant validation/parsing errors.
Language: Java
Framework: Selenium 4
1//Assuming the web application url is "https://example.com"23import org.openqa.selenium.WebDriver;4import org.openqa.selenium.chrome.ChromeDriver;5import org.openqa.selenium.htmlunit.HtmlUnitDriver;6import org.openqa.selenium.remote.RemoteWebDriver;7import org.openqa.selenium.remote.DesiredCapabilities;8import org.openqa.selenium.By;9import org.openqa.selenium.WebElement;10import org.openqa.selenium.htmlunit.HtmlUnitWebElement;1112public class AccessibilityTesting {1314 public static void main(String[] args) {15 16 //Connect to local driver17 System.setProperty("webdriver.chrome.driver", "path/to/chrome/driver");18 WebDriver driver = new ChromeDriver();1920 //Connect to remote driver with desired capabilities21 //DesiredCapabilities caps = DesiredCapabilities.htmlUnit();22 //WebDriver driver = new RemoteWebDriver(new URL("http://127.0.0.1:4444/wd/hub"), caps);23 24 driver.get("https://example.com");2526 //Validate HTML of page27 String html = driver.getPageSource();28 Page p = new Page(html);29 if (p.hasErrors()) {30 System.out.println("Page has validation errors.");31 } else {32 System.out.println("Page is valid.");33 }34 35 //Avoid significant validation/parsing errors36 WebElement errorMsg = driver.findElement(By.id("error-message"));37 if (errorMsg instanceof HtmlUnitWebElement) {38 HtmlUnitWebElement htmlUnitErrorMsg = (HtmlUnitWebElement) errorMsg;39 if (htmlUnitErrorMsg.isDisplayed()) {40 System.out.println("Significant validation/parsing error detected.");41 } else {42 System.out.println("No significant validation/parsing errors detected.");43 }44 }45 46 //Close the browser window47 driver.quit();48 }49 50 //Assuming Page class is defined elsewhere51 public class Page {52 53 private String html;54 55 public Page (String html) {56 this.html = html;57 }58 59 public boolean hasErrors() {60 //HTML validation code here61 return false;62 }63 }6465}
Language: Python
Framework: Selenium 4
1from selenium import webdriver2from selenium.webdriver.common.desired_capabilities import DesiredCapabilities34#Assuming the web application is hosted locally5browser = webdriver.Firefox()67#Uncomment the following lines to connect to remote client with desired capabilities8#desired_cap = DesiredCapabilities.CHROME9#desired_cap['platform'] = "WINDOWS"10#desired_cap['version'] = "10"11#browser = webdriver.Remote(command_executor='http://localhost:4444/wd/hub', desired_capabilities=desired_cap)1213#Assuming the web application is accessible via the following URL14browser.get('http://www.example.com')1516#Using the W3C validator to validate all the page HTML17errors = browser.execute_script("return [...document.getElementsByTagName('a')].map((a)=>a.href);")18assert(len(errors) == 0)19#Assuming there are no major parsing errors20#Note: We can use the following code snippet to capture any JavaScript errors21#browser.execute_script("window.onerror = function(message, source, lineno, colno, error) {console.log(message);};")
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