Run a single test
The full test suite requires ~45mn. You can run one single test with:
ant ... test -Dtest.name='**/TestSendFile*'
You can run ant manually or temporarily edit debian/rules.
Skip test suite
export DEB_BUILD_OPTIONS=nocheck
Technicalities aside, if the current version doesn't pass the test suite, one may skip the test suite for new uploads, provided no additional failures occur 1.