comparison tests/run-tests.py @ 22839:9f0f50c63e16

run-tests: more accurate/helpful message than "diff generation failed"

Diff generation didn't really fail, it recognized that an hg serve server has
failed to start, and thus skipped the diff generation intentionally.

The most common reason for a server to fail to start is that the port was
already in use, so output HGPORT as well, to help finding it (since pgrep -f
'hg serve' is not sufficient, if the command line is something like 'hg -R main
serve')

22838:9a20f53e436f

            pass
        elif self._options.view:
            os.system("%s %s %s" %
                      (self._options.view, test.refpath, test.errpath))
        else:
            failed, lines = getdiff(expected, got,
                                    test.refpath, test.errpath)
            if failed:
                self.addFailure(test, 'diff generation failed')
            else:
                self.stream.write('\n')
                for line in lines:
                    self.stream.write(line)
                self.stream.flush()

22839:9f0f50c63e16

            pass
        elif self._options.view:
            os.system("%s %s %s" %
                      (self._options.view, test.refpath, test.errpath))
        else:
            servefail, lines = getdiff(expected, got,
                                       test.refpath, test.errpath)
            if servefail:
                self.addFailure(
                    test,
                    'server failed to start (HGPORT=%s)' % test._startport)
            else:
                self.stream.write('\n')
                for line in lines:
                    self.stream.write(line)
                self.stream.flush()