xmltooling, wheezy and skipping tests

[Etienne Dysli-Metref]

I've hit a nastier obstacle while backporting xmltooling for wheezy:
tests that use the network are skipped, but skipping tests is only
supported since cxxtest 4.2 and wheezy has 4.0 (jessie has 4.3). So the
code in Enable-skipping-tests-which-require-network-access.patch cannot
use the TS_SKIP macro.

The following workarounds come to my mind:
- Backport cxxtest to wheezy, but this is walking straight into
dependency hell.
- Undo Enable-skipping-tests-which-require-network-access.patch, but the
tests will then likely fail on the build servers, preventing the package
from building.
- Fake the tests passing with something like:
    void skipNetworked() {
        if (getenv("XMLTOOLINGTEST_SKIP_NETWORKED")) {
            TS_WARN("requires network access");
            TS_ASSERT(1);
        }
    }
  but I don't like lying in unit tests...

What do you guys think?

  Etienne

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