Develop Reference

JMeter - WebDriver Sampler - waitForPopUp

I am trying to work out a comparable command to use in jmeter webdriver sampler (JavaScript) how to do a waitForPopUp command. There must be a way. I have something that works for waiting for an element, but I can't work it out for a popup.
Update
I am using this code for waiting for an element:
var wait = new support_ui.WebDriverWait(WDS.browser, 5000)
WaitForLogo = function() {
var logo = WDS.browser.findElement(org.openqa.selenium.By.xpath("//img[#src='/images/power/ndpowered.gif']"))
}
wait.until(new com.google.common.base.Function(WaitForLogo))
And this works, but I can't work out how reuse this to wait for a popup, that has no name, in Java I have used:
selenium.waitForPopUp("_blank", "30000");
selenium.selectWindow("_blank");
And that works, but I can't work out an comparable JavaScript that will work in Jmeter for performance, as I can't get Java working in Jmeter.

I was able to get this working using:
var sui = JavaImporter(org.openqa.selenium.support.ui)
and:
wait.until(sui.ExpectedConditions.numberOfWindowsToBe(2))

In WebDriver Sampler you have the following methods:
WDS.browser.switchTo.frame('frame name or handle') - for switching to a frame
WDS.browser.switchTo.window('window name or handle') - for switching to a window
WDS.browser.switchTo.alert() - for switching to a modal dialog
WDS.browser.getWindowHandles() - for getting all open browser window handles
See JavaDoc on WebDriver.switchTo method and The WebDriver Sampler: Your Top 10 Questions Answered guide for more details.

How do I set a cookie in the selenium webdriver javascript script?

I want to set a cookie on a simple webdriver script:
WDS.sampleResult.sampleStart();
//WDS.driver.manage().addCookie(new Cookie("connect.sid", "s%3AeexeZcd_-S23Uh30e3Dmd4X9PskWF08s6m5hDurDa5Jj66SupmmiqvKEjAg6HGigl0o0V%2B9R7m4", "api." + rootdomain, "/", null));
// start test
WDS.browser.get("https://api." + rootdomain);
waitForVisible(pkg.By.linkText("Log In"));
WDS.browser.findElement(pkg.By.linkText("Log In")).click()
How do I do that?

You can only set the cookie when the driver has started.
The driver starts when you do a .get().
Add the cookie after the .get() and it will work.

Something like:
var cookie = new org.openqa.selenium.Cookie("name","value");
WDS.browser.manage().addCookie(cookie);
should do the trick.
See:
Using Java From Scripts article to learn how to access Java SDK classes from JavaScript
and
The WebDriver Sampler: Your Top 10 Questions Answered guide for some WebDriver Sampler tips

Selenium: How to Inject/execute a Javascript in to a Page before loading/executing any other scripts of the page?

I'm using selenium python webdriver in order to browse some pages. I want to inject a javascript code in to a pages before any other Javascript codes get loaded and executed. On the other hand, I need my JS code to be executed as the first JS code of that page. Is there a way to do that by Selenium?
I googled it for a couple of hours, but I couldn't find any proper answer!

Selenium has now supported Chrome Devtools Protocol (CDP) API, so , it is really easy to execute a script on every page load. Here is an example code for that:
driver.execute_cdp_cmd('Page.addScriptToEvaluateOnNewDocument', {'source': 'alert("Hooray! I did it!")'})
And it will execute that script for EVERY page load. More information about this can be found at:
Selenium documentation: https://www.selenium.dev/documentation/en/support_packages/chrome_devtools/
Chrome Devtools Protocol documentation: https://chromedevtools.github.io/devtools-protocol/tot/Page/#method-addScriptToEvaluateOnNewDocument

Since version 1.0.9, selenium-wire has gained the functionality to modify responses to requests. Below is an example of this functionality to inject a script into a page before it reaches a webbrowser.
import os
from seleniumwire import webdriver
from gzip import compress, decompress
from urllib.parse import urlparse
from lxml import html
from lxml.etree import ParserError
from lxml.html import builder
script_elem_to_inject = builder.SCRIPT('alert("injected")')
def inject(req, req_body, res, res_body):
# various checks to make sure we're only injecting the script on appropriate responses
# we check that the content type is HTML, that the status code is 200, and that the encoding is gzip
if res.headers.get_content_subtype() != 'html' or res.status != 200 or res.getheader('Content-Encoding') != 'gzip':
return None
try:
parsed_html = html.fromstring(decompress(res_body))
except ParserError:
return None
try:
parsed_html.head.insert(0, script_elem_to_inject)
except IndexError: # no head element
return None
return compress(html.tostring(parsed_html))
drv = webdriver.Firefox(seleniumwire_options={'custom_response_handler': inject})
drv.header_overrides = {'Accept-Encoding': 'gzip'} # ensure we only get gzip encoded responses
Another way in general to control a browser remotely and be able to inject a script before the pages content loads would be to use a library based on a separate protocol entirely, eg: Chrome DevTools Protocol. The most fully featured I know of is playwright

If you want to inject something into the html of a page before it gets parsed and executed by the browser I would suggest that you use a proxy such as Mitmproxy.

If you cannot modify the page content, you may use a proxy, or use a content script in an extension installed in your browser. Doing it within selenium you would write some code that injects the script as one of the children of an existing element, but you won't be able to have it run before the page is loaded (when your driver's get() call returns.)
String name = (String) ((JavascriptExecutor) driver).executeScript(
"(function () { ... })();" ...
The documentation leaves unspecified the moment at which the code would start executing. You would want it to before the DOM starts loading so that guarantee might only be satisfiable with the proxy or extension content script route.
If you can instrument your page with a minimal harness, you may detect the presence of a special url query parameter and load additional content, but you need to do so using an inline script. Pseudocode:
<html>
<head>
<script type="text/javascript">
(function () {
if (location && location.href && location.href.indexOf("SELENIUM_TEST") >= 0) {
var injectScript = document.createElement("script");
injectScript.setAttribute("type", "text/javascript");
//another option is to perform a synchronous XHR and inject via innerText.
injectScript.setAttribute("src", URL_OF_EXTRA_SCRIPT);
document.documentElement.appendChild(injectScript);
//optional. cleaner to remove. it has already been loaded at this point.
document.documentElement.removeChild(injectScript);
}
})();
</script>
...

so I know it's been a few years, but I've found a way to do this without modifying the webpage's content and without using a proxy! I'm using the nodejs version, but presumably the API is consistent for other languages as well. What you want to do is as follows
const {Builder, By, Key, until, Capabilities} = require('selenium-webdriver');
const capabilities = new Capabilities();
capabilities.setPageLoadStrategy('eager'); // Options are 'eager', 'none', 'normal'
let driver = await new Builder().forBrowser('firefox').setFirefoxOptions(capabilities).build();
await driver.get('http://example.com');
driver.executeScript(\`
console.log('hello'
\`)
That 'eager' option works for me. You may need to use the 'none' option.
Documentation: https://seleniumhq.github.io/selenium/docs/api/javascript/module/selenium-webdriver/lib/capabilities_exports_PageLoadStrategy.html
EDIT: Note that the 'eager' option has not been implemented in Chrome yet...

How to completely read a site that contains javascript from an android service?

I'm trying to read a node from a website that contains java script.
In VB .NET I just use the following code:
Dim listSpan As IHTMLElementCollection = bodyel.getElementsByTagName("span")
For Each spanItem As IHTMLElement In listSpan
If spanItem.className & "" = "span_name" Then
If Not spanItem.innerText Is Nothing Then
str_result = spanItem.innerText.ToString
Console.WriteLine("Found it: " & str_result)
Else
str_result = "NO"
Console.WriteLine("Not Found")
Console.Beep(500, 500)
End If
End If
Next
But I just can't find a way to convert this code to work in Android service. (Java).
I tried Jsoup but Jsoup is only reading the "view source code" elements and not the javascript results as html.
try {
Document doc = Jsoup.connect(str_link).get();
Elements links = doc.select("span_name");
for(Element link : links) {
String result = link.text();
Log.d("TMA Service","result: " + result);
list.add(title);
}
I mean. This code in VB can find everything. (just like if I right click in an element using google chrome and select "Inspect Element". This shows everything and I'd like to know how to get this data with Android.
CAN SOME ONE GIVE ME AN EXAMPLE?
Thanks.

Unfortunately you can't handle Javascript and dynamic content with Jsoup. Please see my answer here for more information and some examples of Java libraries, that may help you here.
Edit:
HtmlUnit - Getting started (section Getting started)
HtmlUnit: A Simple Example: Check Yahoo Email
How to use HtmlUnit in Java?
HtmlUnit: A Quick Introduction
HtmlUnit – A quick introduction
Getting started with HtmlUnit

how to execute javascript in delphi?

I am coding a small app ,in middle i struck at some point where i have to execute javascript to get my data ?
in my process ,i have to login to some url and then go to some page and have to get data from that . i done all this with indy idhttp ,i got all info except one column which needs javascript to get value ,then i tried using twebbowser to make it work for me ,but how can i use cookies to enabled to webbrowser ?
i navigated browserto('http://mysite.com/login.php user and pass ') ,well its loged in and then i tried to access next link like ('http://mysite.com/link1/example.php')but it directing to login page :(
any help appreciated :)

What is your question now? In the title you ask how to execute JavaScript. Try the following:
uses
MSHTML_TLB, SHDocVw, ShellAPI;
function ExecuteScript(doc: IHTMLDocument2; script: string; language: string): Boolean;
var
win: IHTMLWindow2;
Olelanguage: Olevariant;
begin
if doc <> nil then
begin
try
win := doc.parentWindow;
if win <> nil then
begin
try
Olelanguage := language;
win.ExecScript(script, Olelanguage);
finally
win := nil;
end;
end;
finally
doc := nil;
end;
end;
end;
Sample usage:
IDoc: IHTMLDocument2;
Webbrowser1.Document.QueryInterface(IHTMLDocument2, iDoc);
ExecuteScript(iDoc, 'document.login.submit()', 'JavaScript');
(This, and more, can be found here).
Then in the text you ask how to use cookies (when using TWebBrowser this should happen automatically). When using Indy HTTP, you just have to attach a TIdCookieManager to your TIdHTTPClient instance, thats all (but you probably don't want to use that anyway, due to the script requirement....)

Your best bet would be to automate IE itself. Grab a copy of embeddedwb, drop on a form and navigate to the url which you need to execute something. There is a document property of the component which returns an OLEVariant, use this to execute a DHTML style statement.. something like document.form.submit;.
You can easily hide the window used for automation, one technique I have used is to place it on a new page on a page control, add a second page to display the status, then show the status page and hide the tabs.