W3C home > Mailing lists > Public > www-dom-ts@w3.org > April 2001

RE: [General] Language-independent test representation

From: Arnold, Curt <Curt.Arnold@hyprotech.com>
Date: Tue, 24 Apr 2001 13:59:19 -0600
Message-ID: <B2C1451A181BD411B88A00E018C1C19C08ABF0@thor.aeathtl.com>
To: "'www-dom-ts@w3.org'" <www-dom-ts@w3.org>

> -----Original Message-----
> From: Mary Brady [mailto:mbrady@nist.gov]
> Sent: Tuesday, April 24, 2001 2:05 PM
> To: Arnold, Curt; www-dom-ts@w3.org
> Subject: Re: [General] Language-independent test representation
> Hi Curt,
> I've looked over some of the junit and jsunit tests and had 
> some questions.
> It appears that you have introduced some intermediate methods, such as
> getElementsByTagNameAndIndex, etc -- I'm curious as to why you did
> this.  As it turns out, we were just considering moving away from this
> approach in the NIST ECMAScript tests.  Although at one time I thought
> it better to have common methods/functions for tasks that 
> were repeated
> often, it has in the end made our ECMAScript tests much 
> harder to follow.
> The feedback that we have received seems to favor just using 
> the standard
> DOM calls, instead of having indirection inside the tests themselves.

The primary motivation was to encapsulate places where the language bindings
were substantially different.  For example, the base class as an
"int getLength(Node node)" that can be used to hide the differences between
the Java binding which would have been "node.getLength()" and the JavaScript
which would have been "node.length".  However, getElementByTagNameAndIndex
is really more of a convienience function.

> Am I right in assuming that you went through and hand-coded 
> all three of
> these solutions as opposed to any automated mechanisms?  I'm trying to
> understand the level of effort involved in converting what we already
> have --   We already have another 200 tests that
> have not yet been released that address namespace issues and 
> DOMExceptions.
> We also have the 600 HTML tests that have to be considered.

I'm not sure if you are talking about the conversion from the initial
NIST tests to a JUnit form or from JUnit to JSUnit and CppUnit.  The
conversion of the NIST tests to JUnit was pretty much a porting project,
however I was able to use regex replacement to get the source in pretty
good condition before manually going through each case.  It required me 
about 2 days to convert the existing 284 test cases.

The conversion of JUnit tests to JSUnit and CppUnit is highly automatable, 
though the first pass was done using a series of regex replacements and

> Have you used any of the graphical interfaces to run the 
> tests?  If so, do
> you have any comments?

Not extensively.  

The CppUnit graphical interface does not allow dynamic loading
of tests and is platform-specific (MFC), so I didn't really bother with it, preferring 
to concentrate on the command line driver.  

The JSUnit tests only run within a browser, 
basically you browse for an HTML file containing the tests and press run, a bar shows 
test progress and turns red if there are any failures or errors.  If you double click
on any error or failure, you get a description.  I haven't tested the JavaScript
tests since the release of JSUnit 1.2 which primarily added support for passing a
description as part of the assertion at my suggestion.  The current JSUnit code doesn't
take advantage of that new capability.

I haven't used the JUnit user interfaces, however I assume that they are pretty good.

> I can't seem to find the JSUNIT download -- I can browse the 
> repository
> and look at the source for the tests, but can't seem to find 
> the app area --
> I wanted to try this out in Mozilla.

You need to download JSUnit 1.2 from http://www.edwardh.com/jsunit/ and extract 
it into the domunit/jsunit directory (giving you a domunit/jsunit/jsunit/app directory).  
JSUnit is suppose to work with Mozilla provided you implement a method to return 
the names of all the test scripts (which I attempted to implement, but haven't tested).
You will need to modify DOMTestCaseConfig.js to appropriately invoke the Mozilla parser.

I'd also like to be able to test the Adobe SVG Viewer using the framework, but I haven't
spent anytime figuring out how to do that without messing up the modularization.
Received on Tuesday, 24 April 2001 16:11:18 UTC

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