run-tests: teach Test instances whether they are in unittest mode
Tests executing in unittest mode behave a little differently. For
example, they report their results to a TestResult rather than just
printing. This patch paves the way for better integration of Test into
the unittest framework.
FROM centos
RUN yum install -y gcc
RUN yum install -y python-devel python-docutils
RUN yum install -y make
RUN yum install -y rpm-build
RUN yum install -y gettext
RUN yum install -y tar