'L{LogBeginner.beginLoggingTo} will leave the existing stdout/stderr in
place if it has been told not to replace them.'

def test_beginLoggingToDontRedirect(self):

    oldOut = self.sysModule.stdout
    oldErr = self.sysModule.stderr
    self.beginner.beginLoggingTo((), redirectStandardIO=False)
    self.assertIs(self.sysModule.stdout, oldOut)
    self.assertIs(self.sysModule.stderr, oldErr)
