comparison tests/run-tests.py @ 21735:5ee547fdb0be

run-tests: produce error on running a failing test

This patch fixes a regression recently introduced by a refactoring (see
92a6b16c9186 and about 200 previous changesets from Gregory Szorc).  It produce
an error message everytime with a test filename which gets fail while testing
except at one condition when '--nodiff' option is enabled.

21734:34e0bd895afc

    def addFailure(self, test, reason):
        self.failures.append((test, reason))

        if self._options.first:
            self.stop()

    def addError(self, *args, **kwargs):
        super(TestResult, self).addError(*args, **kwargs)

        if self._options.first:

21735:5ee547fdb0be

    def addFailure(self, test, reason):
        self.failures.append((test, reason))

        if self._options.first:
            self.stop()
        else:
            if not self._options.nodiff:
                self.stream.write('\nERROR: %s output changed\n' % test)

    def addError(self, *args, **kwargs):
        super(TestResult, self).addError(*args, **kwargs)

        if self._options.first: