A wrapper to start a python script with timeout. To test the actual models even without GPUs we simply start them and test whether they survive a certain amount of time "timeout". This allows to test if all imports are correct and the computation graph can be built without run the e
| 9 | |
| 10 | |
| 11 | class PythonScript(threading.Thread): |
| 12 | """A wrapper to start a python script with timeout. |
| 13 | |
| 14 | To test the actual models even without GPUs we simply start them and |
| 15 | test whether they survive a certain amount of time "timeout". This allows to |
| 16 | test if all imports are correct and the computation graph can be built without |
| 17 | run the entire model on the CPU. |
| 18 | |
| 19 | Attributes: |
| 20 | cmd (str): command to execute the example with all flags (including python) |
| 21 | p: process handle |
| 22 | timeout (int): timeout in seconds |
| 23 | """ |
| 24 | def __init__(self, cmd, timeout): |
| 25 | """Prepare a python script |
| 26 | |
| 27 | Args: |
| 28 | cmd (str): command to execute the example with all flags (including python) |
| 29 | timeout (int): time in seconds the script has to survive |
| 30 | """ |
| 31 | threading.Thread.__init__(self) |
| 32 | self.cmd = cmd |
| 33 | self.timeout = timeout |
| 34 | |
| 35 | def run(self): |
| 36 | self.p = subprocess.Popen(shlex.split(self.cmd), stderr=subprocess.PIPE, stdout=subprocess.PIPE) |
| 37 | self.out, self.err = self.p.communicate() |
| 38 | |
| 39 | def execute(self): |
| 40 | """Execute python script in other process. |
| 41 | |
| 42 | Raises: |
| 43 | SurviveException: contains the error message of the script if it terminated before timeout |
| 44 | """ |
| 45 | self.start() |
| 46 | self.join(self.timeout) |
| 47 | |
| 48 | if self.is_alive(): |
| 49 | self.p.terminate() |
| 50 | self.p.kill() # kill -9 |
| 51 | self.join() |
| 52 | else: |
| 53 | # something unexpected happend here, this script was supposed to survive at least the timeout |
| 54 | if len(self.err) > 0: |
| 55 | output = u"STDOUT: \n\n\n" + self.out.decode('utf-8') |
| 56 | output += u"\n\n\n STDERR: \n\n\n" + self.err.decode('utf-8') |
| 57 | raise AssertionError(output) |
| 58 | |
| 59 | |
| 60 | class TestPythonScript(unittest.TestCase): |