[OpenLayers-Dev] Testing for equivalence in XML with xml_eq

[Erik Uzureau]

On 2/22/08, Tim Schaub <tschaub at openplans.org> wrote:
> Hey-
>
> Erik Uzureau wrote:
> > Tim, this is a nice new addition to the testing suite. Great work!
> >
> > a) do you think you could put a copy of this email in a wiki
> > somewhere? It would probably be nice to be able to refer back to this
> > in the future
>
> Sure.  Without a more appropriate place (but wiki's aren't really about
> appropriate places are they?) to put it, I've added some stuff to the
> WritingUnitTests page:
>
> http://trac.openlayers.org/wiki/WritingUnitTests#ModificationstoTest.AnotherWay

perfect. nice one!


> If anybody else wants to document any other changes to testing stuff
> [1], it could be tacked on there.
>
> >
> > b) have you contacted the Test.Anotherway people to see if they would
> > be interested in a patch?
> >
>
> Well, let's see how it works for us before we go trying to sell it.

am I wrong in _assuming_ that your code actually works? :-)

seriously, in the spirit of open source big love, it would be at least
worthy of mentioning it to them on their mailing lists or something.
it seems like a good addition to the test suite and i imagine they
woul be interested

--e





> Tim
>
> > Erik
> >
> > On 2/22/08, Tim Schaub wrote:
> >> Hey-
> >>
> >> So, I assume that the people for whom this is relevant already read
> >> commit messages, but I thought I'd document an addition to our testing
> >> framework here anyway.
> >>
> >> If you're writing tests for anything that does parsing of XML, I've
> >> added a method to Test.AnotherWay test objects that will be useful.  The
> >> new xml_eq method is similar to html_eq except it works for generic xml
> >> (and works in Safari and FF3 where html_eq fails).
> >>
> >> Use is pretty straightforward.  You can compare element nodes to element
> >> nodes, nodes to strings, or strings to strings.
> >>
> >> I added a single script to our run-tests.html page that extends
> >> Test.AnotherWay:
> >> http://trac.openlayers.org/browser/trunk/openlayers/tests/xml_eq.js
> >>
> >> Though I grimace when I see this much code in email, I'll paste a couple
> >> examples:
> >>
> >> // Pretend we're on a test page in a test function
> >> var format = new OpenLayers.Format.XML();
> >> var doc, got, exp;
> >>
> >> // Create a doc and check that root is equivalent to some string
> >> doc = format.read(
> >>     "<chicken>soup</chicken>"
> >> );
> >> got = doc.documentElement;
> >> exp = "<chicken>soup</chicken>";
> >> t.xml_eq(got, exp, "passes");
> >>
> >> // See what happens with bad expectations
> >> exp = "<chicken>fat</chicken>";
> >> t.xml_eq(got, exp, "fails");
> >> // Fails with the following message:
> >> // Bad child 0 for element chicken: Node value mismatch: got soup
> >> // but expected fat
> >>
> >> // Test xml with different namespace aliases
> >> got = "<foo:chicken xmlns:foo='namespace'>soup</foo:chicken>";
> >> exp = "<bar:chicken xmlns:bar='namespace'>soup</bar:chicken>";
> >> t.xml_eq(got, exp, "passes");
> >>
> >> // Assert that prefixes are equal
> >> t.xml_eq(got, exp, "fails", {prefix: true});
> >> // Fails with the following message:
> >> // Node name mismatch: got foo:chicken but expected bar:chicken
> >>
> >>
> >> Etc.
> >>
> >> Tim
> >>
> >> _______________________________________________
> >> Dev mailing list
> >> Dev at openlayers.org
> >> http://openlayers.org/mailman/listinfo/dev
> >>
> >
> > !DSPAM:4033,47bf4b4d47441030819293!
> >
>
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