In FF4 Actions.InvokeScript is broken for arrays

[Alexey Ivanov]

Hello

to reproduce use this code:

var actions = Manager.Current.ActiveBrowser.Actions;
actions.InvokeScript("window.my_list=[1,2,3]");
var list = actions.InvokeScript<IList>("window.my_list"); // here

In IE and FF3: object[3] { 1, 2, 3}
In FF4: empty array object[0]

Fix please

[Stoich]

Hi Alexey Ivanov,

       could you please also provide the javascript against which we can reproduce this issue. Please create a small sample page with the javascript code and we'll analyze the problem.

Greetings,
Stoich
the Telerik team

[Alexey Ivanov]

Stoich, you can use code that I shown in my prev message with any html page.
As you can see, it first creates an array and then reads it back.

[Stoich]

Hello Alexey,
    I've logged this as a bug and you can track its progress here:
http://www.telerik.com/support/pits.aspx#/public/test-studio/6501
My guess is that this issue is related to the way FF4 interprets Javascript code and it's not related to our product at all. However, our developers will have to determine whether this is really the case.

Kind regards,
Stoich
the Telerik team

[Alexey Ivanov]

Thanks Stoich.
I think your developers will be able to find a way around this :)

[Stoich]

Hi Alexey,
      would you please describe your use case. We're currently discussing the issue with our developers. We would like to learn a bit more about the functionality you're trying to achieve. We might be able to assist you in finding an alternative way to handle your automation task.

Regards,
Stoich
the Telerik team

[Alexey Ivanov]

My use case:
On the page I have a javascript function which returns an array. I check items of this array.
I understand that I might join items with separators and check the string.
But why not to make the script API uniform on your side? Moreover it worked earlier.

[Stoich]

Hello Alexey,
  the issue is probably related to a change in FF4+’s Javascript handling.

Firefox seems to be treating the list as a map, and returning a JSON-encoded version of it. You can probably work around it by not casting the result to IList and handling the JSON value yourself.

Greetings,
Stoich
the Telerik team

[Alexey Ivanov]

Regarding "can probably work around":
would you please show me a simple example?

InvokeScript returns an array. I cannot figure out how to treat it as JSON and parse manually.

[Cody]

Hi Alexey Ivanov,

It took a little research but here's how to get at the array and it's contents/values:

var actions = Manager.Current.ActiveBrowser.Actions;
JsonObject result = actions.InvokeScript <JsonObject>("window.my_list=[1,2,3]");
JsonArray arr = (JsonArray)result["root"];
for (int i = 0; i < 3; i++)
{
    double val = arr[i];
    Log.WriteLine(val.ToString());
}

Regards,
Cody
the Telerik team

[Alexey Ivanov]

Thank you Cody for this information.
Is there anything preventing you from including this to the WebAii library code?
It would make the InvokeScript API consistent among browsers.

[Cody]

Hello Alexey Ivanov,

We will add it to this page of our online documentation.

Kind regards,
Cody
the Telerik team