How to log messages in webdriver

[remya]

Hi All,


How do i use Logger class for logging messages into a file during
automation?

[Krishnan Mahadevan]

Remya,

Can you please help elaborate what you are trying to achieve ?

Are you looking at redirecting the webdriver logging stubs into a file, or are you trying to log your testcase logs into a file ?

Thanks & Regards
Krishnan Mahadevan

"All the desirable things in life are either illegal, expensive, fattening or in love with someone else!"

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[SantoshSarma]

Yes Krishnan, I want to print my webDriver logs in separate file. 

How can I achieve that ? Is there any class/method in WebDriver to print logs?

 Thanks & Regards,
-SantoshSarma

[Raja sankar]

In Webdriver, logging will be enabled default. Level is FINE.

If you use logger, you'll get the logs.

If you want to set the level, you can set using this,

((RemoteWebDriver) driver).setLogLevel(Level.ALL);

or in the logger itself

logger.setLevel(Level.ALL);

both will produce the same level of logs.

ராஜசங்கர்
(Rajasankar)

[remya]

@Krishnan

I want to the webdriver logs in a separate file.Also in which part of
the program should i write the code for this?
(is it in the setup() method?)

On Apr 5, 12:06 pm, Krishnan Mahadevan

[Krishnan Mahadevan]

Remya,

You should probably do something like this (preferably in a setup() method)

Logger logger = Logger.getLogger(RemoteWebDriver.class.getName());

Handler handler = new FileHandler("C:/Users/krmahadevan/logs.txt", true);

Formatter newFormatter = new SimpleFormatter();

handler.setLevel(Level.ALL);

handler.setFormatter(newFormatter);

logger.addHandler(handler);

RemoteWebDriver.setLogLevel(Level.ALL);

PS : I dont have extensive knowledge on Logging but I was able to get the RemoteWebDriver to append its logs to my logs.txt file.

Hope that gets you started.

Thanks & Regards
Krishnan Mahadevan

"All the desirable things in life are either illegal, expensive, fattening or in love with someone else!"

[remya]

Thanks a lot Krishnan ,its working for me!
Thanks All...

On Apr 10, 4:28 pm, Krishnan Mahadevan
<krishnan.mahadevan1...@gmail.com> wrote:
> Remya,

[Naresh]

Hello all,

Is that 'Logger' class from the Selenium framework or is it from another framework?

Thanks,

Naresh

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[Manoj Kapuganti]

Hello Guys,

As Krishnan said, I am trying to use code like this

Logger logger = Logger.getLogger(RemoteWebDriver.class.getName());

Handler handler = new FileHandler("E:/Terra Dotta Selenium Automation/logs.txt", true);

Formatter newFormatter = new SimpleFormatter();

handler.setLevel(Level.ALL);

handler.setFormatter(newFormatter);

logger.addHandler(handler);

RemoteWebDriver.setLogLevel(Level.ALL);

Please post the classes that need to import.

Its not working for me with below classes.

Error on Eclipse is "Cannot make static reference to the non-static method setLogLevel(Level) from the type RemoteWebDriver"

Rightnow I am using

import java.util.concurrent.TimeUnit;

import java.util.logging.FileHandler;

import java.util.logging.Formatter;

import java.util.logging.Handler;

import java.util.logging.Level;

import java.util.logging.Logger;

import java.util.logging.SimpleFormatter;

import org.testng.annotations.*;

import org.openqa.selenium.chrome.ChromeDriver;

import org.openqa.selenium.firefox.FirefoxDriver;

import org.openqa.selenium.firefox.FirefoxProfile;

import org.openqa.selenium.ie.InternetExplorerDriver;

import org.openqa.selenium.remote.RemoteWebDriver;

import org.openqa.selenium.By;

import org.openqa.selenium.WebDriver;

Best Regards,

Manoj Kapuganti

[Krishnan Mahadevan]

Manoj,

The error clearly states the problem: 

Error on Eclipse is "Cannot make static reference to the non-static method setLogLevel(Level) from the type RemoteWebDriver"

I think now seLogLevel is no longer a static method but instead an instance method. 

Replace RemoteWebDriver.setLogLevel() with driver.setLogLevel() where driver is an instance of RemoteWebDriver. 

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Thanks & Regards
Krishnan Mahadevan

"All the desirable things in life are either illegal, expensive, fattening or in love with someone else!"

My Scribblings @ http://wakened-cognition.blogspot.com/

[Manoj Kapuganti]

Hello Krishnan,

I have replaced with driver.setLogLevel(Level.ALL);

But setLogLevel method is undefined for type Webdriver.

Problem not resolved Krishnan.

I would be good if you post the code with classes to import.

Best Regards,

Manoj Kapuganti

[Krishnan Mahadevan]

Manoj,

I am not sure, as to why you would be facing problems. I clearly mentioned that driver has to be of type RemoteWebDriver, because that is where the setLogLevel method has been defined and I dont think it is part of the WebDriver interface.

Here's a full fledged working code that works fine for me !

package raw.selenium;

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.net.URL;

import java.util.logging.FileHandler;

import java.util.logging.Handler;

import java.util.logging.Level;

import java.util.logging.Logger;

import java.util.logging.SimpleFormatter;

import org.openqa.selenium.remote.DesiredCapabilities;

import org.openqa.selenium.remote.RemoteWebDriver;

import org.testng.annotations.AfterClass;

import org.testng.annotations.BeforeClass;

import org.testng.annotations.Test;

public class FetchLogsFromRemoteWebDriverTest {

private RemoteWebDriver driver;

DesiredCapabilities dc;

private String hubURL = "http://localhost:4444/wd/hub";

private String logFileName = "C:/Users/krmahadevan/logs.txt";

@BeforeClass

public void setup() throws SecurityException, IOException {

dc = new DesiredCapabilities();

dc.setBrowserName(DesiredCapabilities.firefox().getBrowserName());

driver = new RemoteWebDriver(new URL(hubURL), dc);

Logger logger = Logger.getLogger(RemoteWebDriver.class.getName());

Handler handler = new FileHandler(logFileName = "C:/Users/krmahadevan/logs.txt", true);

SimpleFormatter newFormatter = new SimpleFormatter();

handler.setLevel(Level.ALL);

handler.setFormatter(newFormatter);

logger.addHandler(handler);

driver.setLogLevel(Level.ALL);

}

@Test

public void f() {

driver.get("http://www.google.com");

}

@AfterClass

public void tearDown() throws IOException {

driver.quit();

File file = new File(logFileName);

BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(file)));

StringBuffer sb = new StringBuffer();

String eachLine = null;

while ((eachLine = br.readLine()) != null) {

sb.append(eachLine).append("\n");

}

br.close();

System.out.println("Log contents : \n" + sb.toString());

}

}

Thanks & Regards
Krishnan Mahadevan

"All the desirable things in life are either illegal, expensive, fattening or in love with someone else!"

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[Manoj Kapuganti]

Hello Krishnan,

Thanks for your response.

Sorry to say that I am not using RemoteWebDriver as not using Grid.

I am using TestNG without Grid. In my code for creating a driver object, we use Webdriver driver = new FirefoxDriver();

I am unable to use above code. Help me.

Best Regards,

Manoj Kapuganti

[Naresh]

Hello Manoj,

You should be able to typecast your FireFoxDriver instance to RemoteWebdriver instance.

FirefoxDriver is a derived type from the RemoteWebdriver.

Thanks,

Naresh

[Mattayi]

@Krishnan Mahadevan

I used the same code provided above. But the log file is empty. My jar
version is 2.25. Do i have to add anything more.

Note : It is working properly in jar version 2.15.

> > *Best Regards,*
> > *Manoj Kapuganti*

Thanks
Mathew

[Manoj Kapuganti]

Hello  Mathew ,

Please try to use below code.

        Logger logger = Logger.getLogger("");

FileHandler fh;

fh = new FileHandler(Path where to create the log)

logger.addHandler(fh);

logger.setLevel(Level.ALL);

SimpleFormatter formatter = new SimpleFormatter();

fh.setFormatter(formatter);

Classes required are:

import java.util.logging.FileHandler;

import java.util.logging.Level;

import java.util.logging.Logger;

import java.util.logging.SimpleFormatter;

Best Regards,

Manoj Kapuganti

[susanth.nair]

remya,

Either

import java.util.logging.Level;

import java.util.logging.Logger;

public class MyClass {

   final static myLog = Logger.getLogger(MyClass.class.getName());

publicstatic blabla{

        if (myLog.isLoggable(Level.INFO)) {

            myLog.info("log it");

        }

}

Or (use Log4j)

 

 

import org.apache.log4j.Logger;

public class MyClass {

  static Logger myLog = Logger.getLogger(MyClass.class.getName());

publicstatic blabla{

     myLog.debug("log it”);

}

}




Susanth Nair

Automate Automation.....

[Mattayi]

@ Manoj

Thanks it is working

[Mike Riley]

That is another topic, so please start a new thread.

Mike

On Thursday, September 20, 2012 2:57:25 PM UTC-7, sudha joshna wrote:

How can I capture the logs if I am using seleniumdotnet package.I cannot find Logger class in there,any ideas?
I want to see all the selenium commands that get executed in my test cases in a log file.

Sudha