Capturing browser logs with Selenium WebDriver using Java

Question

Is there a way to capture browser logs while running automated test cases with Selenium? I found an article on how to capture JavaScript errors in Selenium. But that is just for Firefox and only for errors. I would like to get all the console logs.

Answer 1

I assume it is something in the lines of:

import org.openqa.selenium.WebDriver; import org.openqa.selenium.chrome.ChromeDriver; import org.openqa.selenium.logging.LogEntries; import org.openqa.selenium.logging.LogEntry; import org.openqa.selenium.logging.LogType; import org.openqa.selenium.logging.LoggingPreferences; import org.openqa.selenium.remote.CapabilityType; import org.openqa.selenium.remote.DesiredCapabilities; import org.testng.annotations.AfterMethod; import org.testng.annotations.BeforeMethod; import org.testng.annotations.Test;  public class ChromeConsoleLogging {     private WebDriver driver;       @BeforeMethod     public void setUp() {         System.setProperty("webdriver.chrome.driver", "c:\\path\\to\\chromedriver.exe");                 DesiredCapabilities caps = DesiredCapabilities.chrome();         LoggingPreferences logPrefs = new LoggingPreferences();         logPrefs.enable(LogType.BROWSER, Level.ALL);         caps.setCapability(CapabilityType.LOGGING_PREFS, logPrefs);         driver = new ChromeDriver(caps);     }      @AfterMethod     public void tearDown() {         driver.quit();     }      public void analyzeLog() {         LogEntries logEntries = driver.manage().logs().get(LogType.BROWSER);         for (LogEntry entry : logEntries) {             System.out.println(new Date(entry.getTimestamp()) + " " + entry.getLevel() + " " + entry.getMessage());             //do something useful with the data         }     }      @Test     public void testMethod() {         driver.get("http://mypage.com");         //do something on page         analyzeLog();     } } 

Source : Get chrome's console log

Answer 2

In a more concise way, you can do:

LogEntries logs = driver.manage().logs().get(LogType.BROWSER); 

For me it worked wonderfully for catching JS errors in console. Then you can add some verification for its size. For example, if it is > 0, add some error output.