How to Generate Log Files in Selenium Webdriver

In this video, we will mainly discuss How to Generate Log Files in Selenium Webdriver and different type of logs available.
Full article can be found below
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In this video, I have covered how to create log files using log4j.
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You can also generate Advance log report using Extent report.
I have a detailed article on this which will help you to generate report with logs in it.
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[@priyanshisaxena6252]

Thanks Mukesh for explaining so beautifully what exactly log files are. As always your explanation is to the point and easy to understand.

[@RajdeepBiswasInd]

Bohot badhiya barkhuddar!

[@Mukeshotwani]

+Rajdeep Biswas Thanks Rajdeep Bhai

[@manueltenorio7543]

hey, thanks! this was very clear... haha, I didn't have an Idea what the log files were, but I understand they are useful for making software. I need to initialize my log4j system properly because a remote server which I want to access sends the message: "no appenders could be found for logger". Have a great week!

[@Mukeshotwani]

Manuel Tenorio Hey Manuel Thanks I will recommend please refer extent reports as well. Please refer below tutorial kzbin.info/www/bejne/sITNqJqgi9FnhpY it actually generate logs and pie chart, bar graph and so on.

[@rakeshlalsangi5254]

Excellent and easy explanation Mukesh .......

[@Mukeshotwani]

Thanks Rakesh

[@jayakumar6091]

Amazing Explanation thanks a lot Mukesh

[@Mukeshotwani]

jaya kumar Thanks Jaya :)

[@bonker27125]

hi mukesh , as u have said we are providing class name to this logger instance . so it means its use is also limited to that class only . in that case how to use it in whole framework ? like if i have 20 classes as a part of POM, then in every class i have to create logger instance ? or is there any other way ? please suggest

[@Mukeshotwani]

Hi Shobhit, Please use extent report in order to use log effectively

[@sakshitiwariskz]

yeah i finally got logger thnxs dude :)

[@anshulgupta30071990]

@Mukesh Sir: Just one help. Is there a way where i can assert my log files. For my application logs are generated for every api hit. So i need to assert a string or data in logs while logs are generated for that hit. Currently i am doing it manually. Is there any external jar file which can be used to perform such assertions. Or any other easier way. Thanks in advance!

[@nikilraj5298]

Excellent ..thanks...

[@Mukeshotwani]

Thank Ram

[@nidhigarg4996]

Hi Mukesh I have started watching your videos since yesterday. These are really very helpful. I am facing an issue. When I go to your blog learn-automation.com and select any item from drop-downs then the contents are not loaded completely. After some contents blank page is displayed. Also I need to implement selenium framework in my project. Can you please help me in that. Like where and how can i store the xpaths for all the web elements, Database connection and reports and batch run etc. Do I need to create only one Java Project in Eclipse for all the scripts in my project or I can create multiple Java projects? Please Reply. Thanks a lot

[@Mukeshotwani]

+Nidhi Garg Hi Nidhi, I will check my blog theme and thank you for poiting out. I am going to upload framework in upcoming days.

[@nikitasharma2881]

its really helpful..thanks sir

[@Mukeshotwani]

Thanks Nikita

[@monimathur7178]

Hi Mukesh.Thanks for the Log4j information. Could you please answer like where are we defining the log max size ? That means what would be the maximum capacity a log could handle?

[@Mukeshotwani]

Hi Moni, Generally, log files will be in KB so 10 MB is enough (depends on System requirement). I use extent report which has advance logs in HTML file. Have a look learn-automation.com/advance-selenium-reporting-with-screenshots-2/

[@monimathur7178]

Thanks Mukesh for the update :)

[@Mukeshotwani]

Welcome moni try and let me know.

[@dipeshlpatel]

Hi Mukesh, This is brilliant and works perfectly fine with a chrome browser. However, when we have 5 chrome browser thread and using log4j for parallel testing, it does not show efficient test steps flow for tests due to multi-thread execution. Can you please help by sharing your expertise what changes required for efficient logging in multi-thread environment?

[@dipakpardeshi6152]

hi Mukesh thanks for creating video its very helpfull for me, i performed all step for log4j but after run my program i can see logs in my consol but -> in project directory -> in log folder -> all 2 notepad and 1 html log file are empty, you have any idea where i"m doing mistake.

[@Mukeshotwani]

Hey Dipak, Seems some version issue. Which version you are using? You can also try extent report which is latest which gives logs in report directly. learn-automation.com/advance-selenium-reporting-with-screenshots-2/

[@debajyoti1990]

Yes, I have faced the same problem. Looking for solutions now..

[@debajyoti1990]

by the way, Thanks a ton Mukesh for the awesome work that you've been doing..

[@abhishekvaishnav]

I really liked the video and the way you explained things -pretty simple. I have a query _ I need to store some keys for password encryption in logs while doing encryption and also recover the keys from log at time of decryption since I'm using random key encryption. I understood how to store them, but can retrieving them in a program be easy?

[@Mukeshotwani]

not good in this.

[@abhishekvaishnav]

no problemo :)

[@vipinpandey75]

Hi Mukesh, Thanks for such wonderful tutorial. I have one query how Can we configure log file in such a way that it will generate a new html file and log file with class name /Testscript name for each execution. ?

[@Mukeshotwani]

HI Vipin, we use extent report now a days for logs and html report. learn-automation.com/advance-selenium-reporting-with-screenshots-2/

[@anilmor3652]

You are Great bro. :) Thanks for the video.

[@Mukeshotwani]

Thanks Anil. I am glad to know it helped you

[@abhijitbiradar]

Hi Mukesh, Thanks for video. I have a query.can we create a new log file every time using log4j. Means every time when i run program it should create new log file.

[@Mukeshotwani]

Hey Abhijit, I will suggest use extent report which generates logs in HTML format.

[@saifurDYI]

Awesome Idea dude

[@Mukeshotwani]

Thanks Rahman

[@shankarpk89]

Hi Mukesh, Can you please help me understand the difference between log4j and webdriver event listener ?

[@anuragsngh16]

Hi Mukesh , I am able to generate logs using log4j API. But logs which are getting generated contains logs of WebDriver & TestNG along with my custom logs. How should I configure so that I can get only my logs. Thanks in advance

[@shankarashok6599]

Hi Sir Your videos are damn good. In fact no one can match the intensity of your good. Thanks for all your effort. I have one questions regarding the logs. That is in what way does System.out.println(); differs from logs if we replace syso from log it works in the same way right. Or any difference is there.

[@girinivasmanivasagam3965]

Hi Mukesh, I'm getting below error while following your steps. I'm able to get logs in CONSOLE, HTML and R. But i'm not able to get the logs for TTCC and I'm getting the below error on execution. What should I do? log4j:ERROR Could not find value for key log4j.appender.TTCC log4j:ERROR Could not instantiate appender named "TTCC".

[@Mukeshotwani]

Log 4j is missing which is causing the issue.

[@girinivasmanivasagam3965]

Mukesh otwani Thank you

[@pranalikumbhare3547]

Hi..... It necessary to set "log4j.properties" in every program. because, when I didn't t set it , it shows me the warn messages... Please suggest me.....

[@Mukeshotwani]

Yes Pranali if you dont want warnings.

[@davidvasanthraj]

Hi Mukesh, Does the .properties file is same for all codes, all it applicable for your example alone

[@Mukeshotwani]

Hi David it will be applicable to all . I will suggest u to use new logs with report kindly check kzbin.info/www/bejne/mnPNaKOunb-Lnrs

[@davidvasanthraj]

Thank you.bro...Now it's clear.

[@DeepakKumar2105]

Hi Sir, can you tell us why two log files are generated viz testlog and testlog1.I think only one file should be generated.

[@nalinyogeshwarrdwivedi9657]

Hi Mukesh ...unable to find Log4j.properties file on system..or please guide how to create it as in video you directly showed the file and continued. Thanks

[@Mukeshotwani]

Hi Nalin, you have to create this file manuall check out my post for this learn-automation.com/how-to-create-log-files-in-selenium/

[@nalinyogeshwarrdwivedi9657]

Thanks Mukesh ...I found the file from blog....added it to the project folder but I am facing "No appenders could be found for logger (org.apache.http.client.protocol.RequestAddCookies). log4j:WARN Please initialize the log4j system properly" this issue on mac system. Please guide. Thanks.

[@ashishgawande6235]

Thank you sir for the brilliant video. I am facing the issue while generating the log file. log file. only the blank log files are getting generated. can you please guide me further.

[@SuperMechtronics]

Wonderful explanation

[@nmshaik9668]

Hi Tried my self log4g, script will successfully pass and able to generate log folder but that notepad folder showing empty. please tell me mukesh.

[@kshirodsahu3391]

Hi Mukesh, Thanks for such wonderful tutorial. I have one quarry Can we configure log file in such a way that it will generate a new html file and log file with class name /Testscript name for each execution.

[@vipinpandey75]

+mukesh otwani please help me on the same issue.

[@WilsonMar1]

Are the files shown somewhere downloadable, such as GitHub?

[@faisalsakib9810]

hi , can we use maven repository to have 4j jar ???

[@Mukeshotwani]

Hi Faisal, Please use below dependency org.apache.logging.log4j log4j-core 2.11.0

[@TheSumisri]

When I download Apache poi in that log4 jar is available so is it necessary that again I need to download separately

[@Mukeshotwani]

Yes

[@inMeditation_PSSM]

Beautiful way

[@jyshaikh1]

Hi, Continuously getting java.io.FileNotFoundException: log4j.properties (The system cannot find the file specified) - Look like system is looking for log4j.properties file and not found. Where as it is available under /src folder.

[@jyshaikh1]

Commented out: PropertyConfigurator.configure(" log4j.properties"); And all good.

[@gauravshrote4069]

unable to generate log file for different java classes .only created log for first java class. can you please help.

[@userx481]

Mukesh, thank you a lot. I am learning like in a good school from you. Would you know how to add clickable line # in Intelije? I used the same and tried other log4j file content and I am getting this: 0 [main] INFO RandomPractice - Google is launched 17 [main] INFO RandomPractice - Search field is located 143 [main] INFO RandomPractice - Hare Krishna is entered 2126 [main] WARN RandomPractice - Searching for the entered text Whereas I am aiming for getting what you have in the video. I 've heard Inlelije works differently. I have my "log4j.properties" file, may be you can advise what I can add to get the clickable line # or may be there is another way. So far after going to so many blogs, I haven't figured that out. Thank you very much. All the best to you!

[@SanatanihinduHinduRashtra]

how can i use it android program i need everything what ever is happening in the app in the log files please do help me

[@karthiknamana]

I want LogJ4 property file content . where can i get that text in Property file

[@Mukeshotwani]

+karthik namana learn-automation.com/how-to-create-log-files-in-selenium/

[@Mukeshotwani]

+karthik namana try this as well kzbin.info/www/bejne/sITNqJqgi9FnhpY

[@karthiknamana]

thankq +Mukesh otwani . really your blog was awesome . it is very nice

[@Mukeshotwani]

Thank you karthik.. Keep visiting.. Have a nice weekend

[@nurshah816]

nice work..

[@Mukeshotwani]

Thanks Nur

[@sushanthsriram5259]

Hello Bhaya ji...I have tired with above code but i got an error, and when i removed 3rd line i.e, propertyconfigurator.configre(); i am able to execute the code

[@Mukeshotwani]

Thanks Sushanth :) Try extent report too its good for advance logs.

[@sreyashshukla9827]

if i have to generate different logger file for passed and failed scenario, how will i do it?

[@shukrantpatel7024]

In my project i have followed same procedure which u told in video but still my logs folder is not generating..please solve my query

[@Mukeshotwani]

Hi Shukrant, extent report has in built logs and report as well learn-automation.com/extent-report-with-selenium-webdriver/

[@neelamchakraborty9062]

hi Mukesh where can i find this code for property file.

[@Mukeshotwani]

Hi Neelam, You can find the code using below link learn-automation.com/how-to-create-log-files-in-selenium/ Instead of using log4j, i would recommend use extent report which internally uses Log4J. learn-automation.com/extent-report-with-selenium-webdriver/

[@Raghu783]

Hello Mukesh , please increase your voice little bit loud so that we can hear properly.

[@Mukeshotwani]

Sorry Raghu that was little old video. In recent videos I have improved voice quality.

[@SC4K_Online]

getLogger moved to LogManager, can you redo this video

[@divyangjani7600]

what is need of it when we have TestNG?

[@Mukeshotwani]

Hi Divyang if you need in different format then you can use it.

[@blablagswjsvsns134]

unable to get configure method in property.configurator. . nothing showing.

[@sunkarimounika2696]

Hello Mukesh,I followed same procedure.Logs are not getting generated can you please guide me log4j:WARN No appenders could be found for logger (baseClasses.BaseClass). log4j:WARN Please initialize the log4j system properly.

[@niky0153]

can u post ur code here?

[@beditz1591]

Hi can I paste my code I am not able to generate pls help i am beginner in this field ​@@niky0153

[@AbhishekMishra-ru2fi]

You are just awesome man :) (Y)

[@Mukeshotwani]

Thanks mate but I would suggest you to continue with advance logs using extent report which is more popular now a days. learn-automation.com/advance-selenium-reporting-with-screenshots-2/

[@Bujji28243]

Ok good explanations, but hot get property file?

[@thiery572]

Thanks.

[@Mukeshotwani]

Most welcome to my channel

[@Mukeshotwani]

I can see that you also have channel on youtube. Let me know if any help required for youtube as well.

[@thiery572]

@@Mukeshotwani Hehe.. okay. Thanks. :)

[@parveentomar5486]

Sir Kya me apse bat kar skta hu

[@amritpalbadhan205]

its weird..it seems like its working for everyone except me ..the logs files generated displaying no content and their size is 0kb

[@Mukeshotwani]

Cheers

[@dhananjayapattnaik7428]

Admin user can update the user password Given I am in the HR system with an Admin account When I update password of another user Then I receive a message for updating password successfully And user's password is updated to the new passwo

[@incognito3174]

unfortunately I did not understand because I do not speak English. Are there someone who can make me a translation? I speak french and arabic!!

[@Mukeshotwani]

Sorry bro I can speak only English.

[@towhidskynet]

6:44 - 6:45

[@nmshaik9668]

i Hope , u give reply for me