How to use launch_tails method in autotest

Best Python code snippet using autotest_python

monitors_util_unittest.py

Source:monitors_util_unittest.py

...118        po.wait()119    def test_follow_files_nostate(self):120        follow_paths = [self.logfile_path]121        lastlines_dirpath = tempfile.mkdtemp()122        procs, pipes = monitors_util.launch_tails(123            follow_paths, lastlines_dirpath)124        lines, bad_pipes = monitors_util.poll_tail_pipes(125            pipes, lastlines_dirpath)126        first_shouldmatch = '[%s]\t%s' % (127            self.logfile_path, self.lastline)128        self.assertEquals(lines[0], first_shouldmatch)129        monitors_util.snuff(procs.values())130    def test_follow_files(self):131        follow_paths = [self.logfile_path]132        procs, pipes = monitors_util.launch_tails(133            follow_paths, self.lastlines_dirpath)134        lines, bad_pipes = monitors_util.poll_tail_pipes(135            pipes, self.lastlines_dirpath)136        first_shouldmatch = '[%s]\t%s' % (137            self.logfile_path, self.line_after_lastline_seen)138        self.assertEquals(lines[0], first_shouldmatch)139        monitors_util.snuff(procs.values())140        last_shouldmatch = '[%s]\t%s' % (self.logfile_path, self.lastline)141        self.assertEquals(lines[-1], last_shouldmatch)142if __name__ == '__main__':...

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