'Filename to grep for test cases (-*- test-case-name).'

def opt_testmodule(self, filename):

    if (not os.path.isfile(filename)):
        sys.stderr.write(("File    %r    doesn't    exist\n" % (filename,)))
        return
    filename = os.path.abspath(filename)
    if isTestFile(filename):
        self['tests'].append(filename)
    else:
        self['tests'].extend(getTestModules(filename))
