I need to call async JavaScript function at get the function value in Selenium. I tried but I am getting Script timeout error.
My JavaScript Code is
async function SnapScreen() {
var node = document.getElementById("videoContainer");
var result = await domtoimage.toPng(node);
console.log(result);
return result;
}
I have tried
1) Driver?.ExecuteJavaScript("ScreenToBase64()");
2) IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
var obj = js.ExecuteAsyncScript(script, args);
I am getting Script Timeout and never ge the value back.
3) var wait = new WebDriverWait(Driver, TimeSpan.FromMinutes(3));
var data = wait.Until(driver => driver.ExecuteJavaScript<T>(script, args));
4) var wait = new WebDriverWait(Driver, TimeSpan.FromMinutes(3));
IJavaScriptExecutor js = (IJavaScriptExecutor)driver;
var data = wait.Until(driver => js.ExecuteAsyncScript(script, args));
and my Driver and EdgeOptions are
var timeSpan = TimeSpan.FromMinutes(3);
var edgeDriverService = EdgeDriverService.CreateDefaultService(Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location));
edgeDriverService.HideCommandPromptWindow = true;
var edgeOptions = new EdgeOptions { PageLoadStrategy = PageLoadStrategy.Eager };
edgeOptions.AddArgument("headless");
edgeOptions.AddArgument("no-sandbox");
edgeOptions.AddArgument("enable-javascript");
edgeOptions.AddArgument("inprivate");
edgeOptions.AddArgument("whitelisted-ips=\"\"");
Driver = new EdgeDriver(edgeDriverService, edgeOptions, timeSpan);
Driver.Manage().Window.Size = new System.Drawing.Size(1920, 1080);
Driver.Manage().Timeouts().AsynchronousJavaScript.Add(timeSpan);
Driver.Manage().Timeouts().ImplicitWait.Add(timeSpan);
Driver.Manage().Timeouts().PageLoad.Add(timeSpan);
I want to like the method or extension like following
var result=await Driver.ExecuteJavaScriptAsync<T>(script,args)
(or)
var result=await Driver.ExecuteJavaScriptAsync<T>(script,waitTime,args)
So that I can use it in the future.
For more reference my backend is blazor.
CodePudding user response:
For non-async you have to "return" the data.
return ScreenToBase64()
For async arguments[0] (or higher if you pass variables) should be the resolver so you want to:
ScreenToBase64().then(arguments[0])