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Need help about webrtc performance test with Selenium and Jmeter (Java)

I am trying to automate test to webrtc application and I'm trying to do it with multiple users. I created a setUp as below.
`
ArrayList<String> prefs = new ArrayList<String>();
prefs.add("--use-fake-device-for-media-stream");
prefs.add("--use-fake-ui-for-media-stream");
System.setProperty("webdriver.chrome.driver", "C:\\....\\resources\\chromedriver.exe");
ChromeOptions options = new ChromeOptions();
options.addArguments(prefs);
driver = new ChromeDriver(options);
driver.get("https://......");`
but when I use "--use-fake-ui-for-media-stream", the following remote address appears in the logs of the media server of the app.(I used this to disable the security popup for camera and mic.)
remote address looks like: 79beeb9e-ff01-4e69-906c-5be9cab979e6
when I don't use it, the remote address looks like this: 172.17.x.x
Therefore, I cannot connect to the meeting room, the server refuses the remote address.
When I remove "--use-fake-ui-for-media-stream" and put "--user-data-dir=C:\Users....\Local\Temp\...", I overcome this problem, but this time I can only connect to a single chromedriver on the Jmeter, the other chromedrivers are not working. I integrated testcases to Jmeter with Junit request.
I want to use this code for multiple users but I only could do it for a user or I could not connected.
How can i overcome this problem?

When first ChromeDriver instance is launched the profile directory gets locked and it cannot be re-used by 2nd, 3rd, etc. instance.
You can do something like:
prefs.add("--profile-directory=User" + org.apache.jmeter.threads.JMeterContextService.getContext().getThreadNum());
so each instance will have it's own separate profile folder.
More information:
open multiple chrome profile with selenium
JMeterContextService JavaDoc
How to Use JUnit With JMeter

Unable to capture text inside new window in Java Selenium Headless browser

I'm running all my test suites on Jenkins which is deployed on AWS EC2 instance. There is a scenario where when I click on a button, new small window opens up and I'm doing assertion for the text visible inside the small newly opened window. But my tests are failing when I run using Headless mode. But, same scripts works fine when I run scripts locally without opting for headless browser.
The issue here is the scripts are failing because of headless browser since it's unable to capture text inside small window which has opened after click of button.
This class is extending InitiateDriver class which explained. Below class is trying to fetch text which is visible inside the new window which just opened after clicked on SignInWithGSuiteSSOClick() button.
Here is the code:
// click on a button
GSuiteobject.SignInWithGSuiteSSOClick().click();
String winHandleBefore = driver.getWindowHandle();
// Here trying to capture text inside new window opened up basically gmail window to enter email
String signInHeader = GSuiteobject.GsuiteSignInHeader().getText();
Assert.assertEquals(signInHeader, "Sign in");
GSuiteobject.GsuiteEmail().sendKeys("example#gmail.com");
InitiateDriver.java
ChromeOptions options = new ChromeOptions();
options.addArguments("--headless");
options.addArguments("--window-size=1920, 1080");
options.addArguments("--disable-gpu");
driver = new ChromeDriver(options);
The same code works in browser mode but not in headless. But the driver will be initialized but it fails only while capturing text. Please help me out I'm stuck here and unable to execute it on Jenkins as a headless browser.

Headless chrome browser's gmail UI will be different from actual gmail UI(latest). Hence it fails when we run headless chrome for automating gmail login since xpaths will differ. We can validate that by taking Screenshot by running on headless and normal browser.
I suggest to take screenshot using both headless and normal browser. To check on xpaths for headless we can try driver.getPageSource() method.

Selenium Basic Authentication via URL HeadlessChrome ( On Linux Server)

In my Selenium Tests I need to test a webpage where I use a basic Authen,
Knowing that I am using Chrome Headless Java and Selenium WebDriver.
On my machine 'locally' It works perfectly using driver.get("https://admin:admin#localhost..");
and then
driver.get("https://localhost..") for example.
I know that Chrome doesn't support this function anymore but I managed to make it work based on someone's solution here by passing the first URL with credentials and the second without.
But when I run it on remote (Jenkins) On Linux servers I get the following Error
the configuration of your browser does not accept cookies
. I don't have vision on the servers when I can configure Chrome ..any ideas how to make it work without facing that problem.
I know a lot of people asked that question before, But I didn't find any valide answer for my issue.

try ChromeDriver 2.45 (changelog) or change the location, where it is supposed to save the cookies:
ChromeOptions options = new ChromeOptions();
options.addArguments("user-data-dir=/path/to/your/custom/profile");
otherwise (per default) it would create a new temporary directory each time it starts a session.

ChromeOptions options = new ChromeOptions();
//Command line flag for enabling account consistency. The default mode is disabled.
options.addArguments("--account-consistency");
//Chrome that will start logging to a file from startup
options.addArguments("--log-net-log=C:/some_path/resource/log.json");
//Sets the granularity of events to capture in the network log.
options.addArguments("--net-log-capture-mode=IncludeCookiesAndCredentials");
Try this, basically, it saves the logs on startup of chrome browser, then it will set the account consistency. Anywhere from the log, you can debug the issue.

Hello I managed to fix the problem (I forgot to mention that our website is protected by Siteminder) so I did the following following:
1-We inject the USER and the PASSWORD on the URL :
The issue we faced was that the displayed prompt wasn’t part of the page’s HTML and it was hard for us to catch it using Selenium. We managed this by directly injecting the user login and the user password in the URL as follow :
‘https://USERNAME:PASSWORD#basicAuthentURL’
This will launch the Chrome session. Beware, this is only the first step of the process. The user identification have not been performed yet.
2- We create a new cookie :
After launching the URL, we have to manually create a cookie called « SMCHALLENGE » and add it to current session with Selenium, for example in JAVA :
new Cookie("SMCHALLENGE", "YES");
3- Call the URL without the user credencials :
As the SMCHALLENGE cookie is now set, the last step is to call the URL again (https://basicAuthentURL ). The SMCHALLENGE cookie will be deleted once the authentication succeed and a SMSESSION cookie will be generated by Siteminder.
The SMSESSION cookie now allows us to call the application and sucessfully pass Siteminder as if normally logged in (via SSO).
Let me know if you try this out.

Launch Firefox in the same tab

Problem Description: On my user's machine the default browser is IE 7. Because of security reasons the default browser cannot be changed. On the click of another application on my user's machine, my application gets launched. My application gets launched in IE 7. In my application I provide users the ability to launch firefox on the click of a button. I am using java to launch a New Firefox Window.
String url = "www.google.com";
String[] cmdArray = new String[2];
cmdArray[0] = "C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe";
cmdArray[1] = url;
Runtime.getRuntime().exec(cmdArray);
The above piece of code works, however it opens a new Firefox tab every time.
Is there any way to check if Firefox is already running (with a specific url), then open the 'url' in the same tab?
If this is not possible to achieve in java, can this be achieved in javascript?

You can call with -new-tab option:
firefox.exe -new-tab www.google.com
Reference: https://developer.mozilla.org/en-US/docs/Mozilla/Command_Line_Options

Selenium WebDriver: How to set focus when running exe, file for windows authentication.

In My web driver (Selenium) script I am running exe file before getting windows popup.
java.lang.Runtime.getRuntime().exec("E:\\winauthen.exe"); // Windows Authentication popup
driver.findElement(By.xpath(".//div[#id='home']/div[2]")).click();
Its running fine if focus always on the window But if simultaneously I am working something other the user name and password get print/type on the active page not on the Authentication popup.
How to set focus? that it run weather I am looking in to it or not.
Thanks in advance.