DOM load from file & access via DOM API on the server side - possible?

grigorio

Hi,

Can I access a html file, read from disk into a DOM representation, from sahi scripts, on the SERVER side?

It's easy to do on the client side.

But we need to compare innerHtml content of the given html elements with given id between TWO html-files DUMPED via browser-side DOM API earlier - that's our tests' business logic specific.

Now we use javascript's regexp API and sahi's _readFile API to filter out and compare two html files.

But we need to find out html elements in the file dumped, by their html 'id' or 'name' attribute values - and compare these innerHtml parts.

Is it possible in Sahi?

narayan

Hi Grigorio,
The trick is to load the two files into the DOM.
One possible solution:

1) Create an html file with two divs with ids "leftDiv" and "rightDiv"
2) navigate to that file, and then do this:

var $firstDump = _readFile("firstDump.html");
_call(document.getElementById("leftDiv").innerHTML = $firstDump);

var $secondDump = _readFile("secondDump.html");
_call(document.getElementById("rightDiv").innerHTML = $secondDump);

Now all elements will be available in the dom. To differentiate elements of the same id, use

_textbox("myId", _in(_div("leftDiv")))
vs
_textbox("myId", _in(_div("rightDiv")))

Hope that helps.

Regards,
Narayan

grigorio

narayan wrote:

var $firstDump = _readFile("firstDump.html");
_call(document.getElementById("leftDiv").innerHTML = $firstDump);

var $secondDump = _readFile("secondDump.html");
_call(document.getElementById("rightDiv").innerHTML = $secondDump);

Hope that helps.

Regards,
Narayan

Thank you, that does help. One question - as I guess - please confirm - is html comparision being made by Browser DOM engine? If it is, that's fine.

narayan

We will need to write some browser function to compare the htmls.

<browser>
function compareDOMs(div1, div2){
  // iterate over div1.childNodes and compare each div1.childNode[i] with div2.childNodes[i]
  // return true or false
}
</browser>

_assertTrue(compareDOMs(_div("leftDiv"), _div("rightDiv")))

grigorio

narayan wrote:

We will need to write some browser function to compare the htmls.

I've tried your trick - it seems to work, but one bad thing - browser's DOM engine does RENDER DOM-html to be compared. It's too slow...

If you will write a DOM-from-file compare function as _sahi call, try not to use browser's dom engine, but something that does not render DOM while in compare.

As I suppose for our purposes, I will try to call external JScript-scripts under Windows Host Scripting subsystem (as Windows XP professional distrib. and later contains Windows Host Scripting).

May you advise another appoach?

narayan

Hi Grigorio,

Unless the HTML is huge, it should not be very slow. After all, it is just twice the elements as the original page. Windows Scripting Host will not help here. It can execute JScript, not render HTML.

Regards,
Narayan