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[Htmlunit-user] Re: Javascript problem
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From: Marc G. <mgu...@ya...> - 2005-04-26 08:07:03
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Hi Dave,
the problem seems to come from the syntax "function window::onLoad()". Trying following code:
<html><head><title>foo</title>
<script>
function window::onLoad()
{
alert("toto");
}
</script>
</head>
<body>
</body>
</html>
in Mozilla, Firefox and IE, it only works with IE and I get the same errors in Mozilla and Firefox as the one reported
by htmlunit. Therefore I guess that your server generates other javascript for an non IE browser. What happens if you
simulate Mozilla with htmlunit to visit your page?
I have to say that it is the first time that I see this syntax but htmlunit should support it when simulating IE as it
is supported by IE. Not sure of Rhino (the underlying javascript engine) can do it. Please open a bug issue for it.
If you want to simulate IE and can't change the js delivered by the server, you can write a ScriptPreProcessor to adapt
the js before it is executed by htmlunit changing for instance
function window::onLoad() { IE_OnLoad(); }
to
window.onload = function() { IE_OnLoad(); }
Marc.
Dave Kosenko wrote:
> I'm trying to set up some unit tests against a web site whose pages have
> been
> instrumented for the purposes of performance monitoring. This
> instrumentation is
> done via javascript. Accessing the instrumented pages using several
> browsers
> (Firefox, IE) render them just fine with no errors. But when I grab the
> pages via
> htmlunit, I get exceptions on the syntax of some of the javascript.
>
> Apr 25, 2005 12:55:38 PM
> com.gargoylesoftware.htmlunit.javascript.StrictErrorReporter error
> SEVERE: error: message=[missing ( before function parameters.]
> sourceName=[Embedded script]
> line=[1] lineSource=[function window::onLoad() { IE_OnLoad(); } function
> window::onBeforeUnload() { IE_OnBeforeUnLoad(); }] lineOffset=[17]
> Got an exception
> Wrapped com.gargoylesoftware.htmlunit.ScriptException: Wrapped
> com.gargoylesoftware.htmlunit.ScriptException: missing ( before function
> parameters. (Embedded script#1)
> (http://rattle:82/veritas_i4t_agents/pssift_s1.js#352)
>
> The script does a writeln into the page of the code above, namely:
>
> function window::onLoad() { IE_OnLoad(); } function
> window::onBeforeUnload() { IE_OnBeforeUnLoad(); }
>
> This is not code I have written or really have control over so changing the
> source is really not an option. What I'm at a loss to understand is why
> this
> causes an exception in html unit and not in other browsers, esp
> Firefox? Does
> anyone who know javascript well know if the above is valid?
>
> My bad java code is included below in case I've done anything dumb
> there. Oh and
> the same problem occurs with various values for the browser version.
>
> import junit.framework.TestCase;
> import com.gargoylesoftware.htmlunit.*;
> import com.gargoylesoftware.htmlunit.html.*;
> import java.net.*;
>
> public class test1 extends TestCase {
>
> public static void main(String[] args) {
>
> System.setProperty("com.gargoylesoft.htmlunit.javascript", "debug");
> System.out.println("Start test:");
> System.out.println("Using URL="+args[0]);
> for (int i=0; i<=100000; i++){
> System.out.print("Run: ");
> System.out.println(i);
> try {
> testSearch(args[0]);
> } catch (Exception e){
> System.out.println("Got an exception");
> System.out.println(e.getMessage());
> }
> }
> }
>
> public static void testSearch(String urltouse) throws Exception {
> final WebClient webClient = new
> WebClient(BrowserVersion.INTERNET_EXPLORER_6_0);
> final URL url = new URL(urltouse);
> final HtmlPage page = (HtmlPage)webClient.getPage(url);
> }
>
>
> }
>
> Thanks,
> Dave
>
>
>
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