I am trying to use Dialog handler twice in a function. For first time it executes well but on second time it hangs the system with dialog box open and showing Ok and Cancel butoon but never able to click it. Also it times out with an error "Dialog not available within 60 seconds"
Dim cdhPopup As ConfirmDialogHandler
cdhPopup = New ConfirmDialogHandler()
If (ie.Button(Find.ById("btnDelete")).Exists) Then
'Cancel the booking '
ie.AddDialogHandler(cdhPopup)
ie.Button(Find.ById("btnDelete")).ClickNoWait()
cdhPopup.WaitUntilExists()
cdhPopup.OKButton.Click()
ie.WaitForComplete() 'Wait for page to finish loading '
Else
Assert.Fail("Could not found the Cancel Button")
End If
Using this at 2 places in my code, First time it executes fine and second time within same function it gives dialog not available whereas it is available error.
My best guess is that in the second pass you are again calling
ie.AddDialogHandler(cdhPopup), thereby registering it a second time, which is somehow crashing the program when the handlers are invoked (cross thread access to internal variables maybe?)
You should perform a check if the handler is registered, and only register it if it isn't.
Related
I have a problem waiting for an iframe to exist on page after entering a date range and I would rather not use sleep. I am using ruby/watir
I have tried solutions like this -
wait_until(10, "iFrame has not loaded") do
#browser.iframe(id: "dtl00_DP1_content").exists?
end
but this simply returns this error - Selenium::WebDriver::Error::NoSuchWindowError: no such window
So how do I wait for an iframe that does not yet exist please?
I am not sure whether you only want to wait for an Iframe, If you want to perform any operation on an element which is present in the iframe, then you could do as I mentioned in my comment.
#browser.iframe(name: "something").text_field(name: "username").set 'raja'
Or If you still wait for an iframe to appear, then write the following code
#browser.wait_until { #browser.iframe(id: "dtl00_DP1_content").exists? }
The above code waits for 30 seconds, but If you want to increase the time to wait, then write the following code, the following code would wait fo 50 seconds.
#browser.wait_until(timeout: 50) { #browser.iframe(id: "dtl00_DP1_content").exists? }
Background:
I have a JAVA application on which we run our Test Complete scripts(We have recently moved from UFT to TestComplete, so TC is a bit new for us). The scripting language used is VBScript.
Issue:
In order to handle the slow application behavior, I have created a function which waits for an object to get loaded and become visible on the screen before any operation is performed on that object. But, at times, the function does not work. By this, I mean that even though the object is loaded and is visible on the screen, the function still keeps on waiting for the object i.e., uiObject.exists keeps on returning false due to which it keeps on waiting until the timeout value is reached. Has someone here faced this issue before?
Paramter values passed:
uiObject = Aliases.ParentObj.Login_Window
intMaxTimeOut = 120
Code
'============================================================================================================
'Function Name: fn_waitForObject
'Purpose: To wait for an object to exist and become visible on screen
'Creation Date: 04-06-2018
'Return type: true, if the object exists and is visible; false, if the object doesn't exist
'Parameters: uiObject - The object for which the script waits to get visible on screen
' intMaxTimeOut - Maximum timeout in seconds
'============================================================================================================
function fn_waitForObject(uiObject,intMaxTimeOut)
Dim intCounter : intCounter = 0
Do While (intCounter < intMaxTimeOut)
If uiObject.exists then
Exit Do
Else
intCounter = intCounter + 1
delay 1000
End If
Loop
'If the object exists, make sure that it is visible on screen
If uiObject.exists then
Do While (intCounter < intMaxTimeOut)
If uiObject.visibleonscreen then
Log.Message "The object """&uiObject.toString&""" exists and is visible on screen"
Exit Do
Else
intCounter = intCounter + 1
delay 1000
End If
Loop
End If
fn_waitForObject = uiObject.visibleonscreen
End Function
Object Spy
Maybe the information on this link can help you!
whats is the difference between UIObject and UIObject2 other than UIAutomator 2.0 version name?
What is the actual error saying in TC?
Have you seen this link? https://support.smartbear.com/testcomplete/docs/app-objects/common-tasks/waiting-process-or-window-activation.html
I would also suggest trying to use the record keyword test, then convert it to script
For now you could increase your max timeout value, but your while loop will still have a hard upper limit. I recommend using one of the methods listed in the article above, as they will make TestComplete wait until your process/objects have fully loaded, no matter how much time has passed. That way, you won't run into your current problem anymore.
It is the Name Mapping creating a 2nd version of the same object.
Go into the Name Mapping and edit the properties to only use static properties, so new versions of the same UIObject are not being created.
I am following this tutorial here: http://www.sbin.org/doc/Xlib/chapt_16.html
Here is the image of the tutorial:
Here is my code: (it is in another thread from which I called XInitThreads - I know using threads and X is bad, I know I should be on the main thread, but just wondering if possible)
var ev = XEvent();
var rez_XMaskEvent = XMaskEvent(cachedXOpenDisplay(), ButtonPressMask | ButtonReleaseMask, ev.address());
console.log('rez_XMaskEvent:', rez_XMaskEvent);
console.log('ev:', ev);
ButtonPressMask is 4
ButtonReleaseMask is 8
So XMaskEvent is blocking, but whenever I press my mouse button it is not catching it. Shouldn't it unblock and get to the console.log line?
Do I need to run an event loop somehow in this thread?
Thanks
I'm not 100% sure here but I feel this could be your problem:
You probably can't do this from JavaScript without some extra precautions. JavaScript in the browser is single-threaded. That means you're holding a lock and no other JavaScript can run. Your problem is a) you're using threads and b) "If the event you requested is not in the queue, XMaskEvent flushes the output buffer and blocks until one is received." (see the man page)
That means XMaskEvent blocks since the button hasn't been pressed, yet. And your browser can't execute JavaScript anymore. If there is an event in the queue which would trigger some JavaScript, the browser will lock up.
I have an Internet Transfer Control on a form called "inetFTP". After I call
inetFTP.Execute , "Get " & "test.zip" & " " & "C:/test.zip"
I want to pause the code execution until the download is finished, so there wouldn't be any other code operating on the file afterwards that could encounter problems. Is there a way to do that?
Normally you'd use the control's StateChanged event and monitor for at least the icError and icResponseCompleted states.
But in real programs it is often necessary to use this along with a Timer control and an elapsed time counter and cancellation flag. You'll want to be sure you don't miss any state changes (some don't seem to fire the event if they occur in quick succession), to handle timeouts, to cancel long running operations, etc.
I suspect there are some long standing bugs in the control that have never been ironed out, which is why StateChanged isn't as reliable as one might hope. Some of this may relate to inherent quirks or race conditions in the session-oriented FTP protocol. HTTP operations seem quite a bit more deterministic.
From there you'd need to change your program flow to properly fit the model of a Windows program.
A long running async operation can be started, but then there is only so much more "worth doing" in most cases until you get a completion signal (or an abort, etc.).
So you do that Execute and then exit the event handler you are running in. Once completion is signaled you resume processing in that completion event handler.
VB6 is not QBasic, and Windows is not DOS.
You can use a Timer (VBA.DateTime.Timer), see below:
Dim PauseTime As Single, start As Single
PauseTime = 2 ' pause the execution of code for two (2) seconds:
start = Timer
Do While Timer < start + PauseTime
DoEvents
Loop
I found the answer. I should insert
Do While inetFTP.StillExecuting
DoEvents
Loop
and this loops until the Internet Transfer Control finishes it job.
What does "DoEvents" do in vb6 ?
Why do I get the error message "Out of stack space" ? What does it mean ?
DoEvents() allows other Windows messages to be processed.
The reason you get an out of stack space error is probably because DoEvents() is allowing events to occur that call your code again, which again calls DoEvents(), and so on until the stack space, which tracks the return addresses for all these calls, has run out.
In general, I do not recommend using DoEvents() due to problems like these and the fact that it violates the overall event-driven design of Windows.
A slightly different way of looking at DoEvents is that it flushes the events in the event queue. If your sub or function triggers an event, that event handler becomes a sub that is in line to run as soon as your sub/function is finished. DoEvents says to run that event handler sub now, instead of waiting till the end of your sub.
While I agree in spirit with Jonathon about not using DoEvents, I would temper his statement by saying I only recommend using it if you know exactly why, and know all of the repercussions of changing the order of the event queue this way. Most often, DoEvents is indicated when you want to update your screen in some way from within the context of a subroutine, before the subroutine is finished executing.
An example of this is when you are using the ProgressBar control. Suppose you are iterating through several thousand records, and want to provide feedback to the user as to how far along you are by updating a progress bar. You might interrupt your loop every hundred records and change the value on the progressbar control. However (unless you do something about it) you won't see the change on the screen until after the progressbar's change event handler runs, and that handler won't run until your sub is done executing. It will just get put in the event queue. The way to force the change event to run immediately, suspending your sub, is to call DoEvents. This will flush all existing events from the queue--in this case your progressbar's change event--and will update the progressbar control on the screen.
Now, "out of stack space" basically means that you've been caught in an endless loop of function calls. The most basic way to cause that is this:
Public sub MySub()
MySub
End Sub
And then call MySub from somewhere. You'll get an out of stack space error. If you look at the Call Stack, you'll see a very long line of calls to MySub.
A well-known real-world example of this would happen in older versions of VB:
Public Sub TextBoxArray_LostFocus(index as Integer)
If TextBoxArray(index) = "" Then
TextBoxArray(index).SetFocus
MsgBox "Please enter a value"
End If
End Sub
This situation assumes two members of a TextBox control array called TextBoxArray. Now, if the user starts with the first one (index 0) and moves to the second one (index 1) then index 0's LostFocus event will fire. However, VB would also internally set the focus to the index 1 box. Then the code would set the focus back to index 0, firing index 1's LostFocus event! You're caught in a loop. They fixed that in VB5 or 6 by waiting to set the focus until the LostFocus event was done executing.
I would clarify Johnathon's answer in that it pumps that VB message loop and allows the VB Runtime to process windows messages, which is the opposite of Sleep which allows for Windows to process its events (not necessary in the world of Multicore CPUs and true multitasking OS's but when VB6 was written Windows 9x was the dominant OS and a hard loop that only had DoEvents in it would spike the CPU usage to 100%). So seeing things like
While fDoneFile = False
DoEvents
Sleep 55
Wend
was a common pattern throughout the VB6 world.
As stated else where, DoEvents allows other events in your application to fire. Here's an example of how you can use DoEvents without the "Out of stack space" issue. This makes sure you don't run through the code multiple times by using a Boolean to indicate the code is running.
Sub Example()
'Create static variable to indicate the sub is running.
Static isRunning As Boolean
'Exit the sub if isRunning
If isRunning Then Exit Sub
'Indicate sub is running
isRunning = True
'Sub does stuff
DoEvents
'Ends up calling sub again
Example 'Added just to prove via testing.
'Indicate sub is no longer runningrunning
isRunning = False
End Sub