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# coding: utf8 |
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# Copyright 2013-2018 Vincent Jacques <[email protected]> |
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from __future__ import division, absolute_import, print_function |
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import ctypes |
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import multiprocessing |
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import subprocess |
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import sys |
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import tempfile |
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import time |
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import unittest |
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try: |
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import unittest.mock |
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except ImportError: # Not unittested: test code for Python 2 |
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import mock |
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unittest.mock = mock |
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from ActionTree import * |
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libc = ctypes.CDLL(None) |
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# No multiprocessing.Barrier in Python 2, so we build our own |
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class Barrier: |
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def __init__(self, expected_processes): |
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self.__expected_processes = expected_processes |
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self.__waiting_processes = multiprocessing.Value("i", 0) |
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self.__barrier = multiprocessing.Semaphore(0) |
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def wait(self): |
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with self.__waiting_processes.get_lock(): |
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self.__waiting_processes.value += 1 |
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if self.__waiting_processes.value == self.__expected_processes: |
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self.__barrier.release() |
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self.__barrier.acquire() |
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self.__barrier.release() |
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# multiprocessing.Semaphores are not picklable, so we pickle their ids and retrieve them from this dict. |
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# We don't deallocate them so we do leak some resources, but we accept that in unit tests. |
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barriers = {} |
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class TestAction(Action): |
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def __init__( |
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self, label, |
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exception, return_value, barrier_id, |
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events_file, end_event, |
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print_on_stdout, print_on_stderr, puts_on_stdout, echo_on_stdout, |
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accept_failed_dependencies, |
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): |
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super(TestAction, self).__init__(label=label, accept_failed_dependencies=accept_failed_dependencies) |
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self.__exception = exception |
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self.__return_value = return_value |
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self.__barrier_id = barrier_id |
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self.__events_file = events_file |
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self.__end_event = end_event |
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self.__print_on_stdout = print_on_stdout |
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self.__print_on_stderr = print_on_stderr |
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self.__puts_on_stdout = puts_on_stdout |
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self.__echo_on_stdout = echo_on_stdout |
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def __repr__(self): |
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return "<TestAction {}>".format(self.label) |
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def do_execute(self, dependency_statuses): |
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for d in self.dependencies: |
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assert self.accept_failed_dependencies or dependency_statuses[d].status == SUCCESSFUL |
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with open(self.__events_file, "a") as f: |
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f.write("{}\n".format(str(self.label).lower())) |
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if self.__barrier_id: |
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barriers[self.__barrier_id].wait() |
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if self.__end_event: |
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with open(self.__events_file, "a") as f: |
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f.write("{}\n".format(str(self.label).upper())) |
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if isinstance(self.__print_on_stdout, str): |
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print(self.__print_on_stdout) |
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elif isinstance(self.__print_on_stdout, list): |
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for (p, d) in self.__print_on_stdout: |
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print(p) |
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sys.stdout.flush() |
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time.sleep(d) |
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if self.__print_on_stderr: |
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print(self.__print_on_stderr, file=sys.stderr) |
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if self.__puts_on_stdout: |
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libc.puts(self.__puts_on_stdout) |
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if self.__echo_on_stdout: |
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subprocess.check_call(["echo", self.__echo_on_stdout]) |
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if self.__exception: |
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raise self.__exception |
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else: |
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return self.__return_value |
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class ActionTreeTestCase(unittest.TestCase): |
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def setUp(self): |
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# print(self.id()) |
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(fd, events_file) = tempfile.mkstemp() |
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os.close(fd) |
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self.__events_file = events_file |
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def tearDown(self): |
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os.unlink(self.__events_file) |
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def _action( |
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self, label, |
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exception=None, return_value=None, barrier=None, |
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end_event=False, |
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print_on_stdout=None, print_on_stderr=None, puts_on_stdout=None, echo_on_stdout=None, |
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accept_failed_dependencies=False, |
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*args, **kwds |
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): |
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return TestAction( |
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label, |
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exception, return_value, barrier, |
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self.__events_file, end_event, |
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print_on_stdout, print_on_stderr, puts_on_stdout, echo_on_stdout, |
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accept_failed_dependencies, |
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*args, **kwds |
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) |
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def _barrier(self, n): |
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barrier = Barrier(n) |
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barrier_id = id(barrier) |
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barriers[barrier_id] = barrier |
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return barrier_id |
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def assertEventsEqual(self, groups): |
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with open(self.__events_file) as f: |
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events = [line.strip() for line in f.readlines()] |
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for group in groups.split(" "): |
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self.assertEqual(sorted(group), sorted(events[:len(group)])) |
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events = events[len(group):] |
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self.assertEqual(events, []) |
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def assertEventsIn(self, expected_events): |
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with open(self.__events_file) as f: |
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events = [line.strip() for line in f.readlines()] |
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self.assertIn(events, expected_events) |
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# class TestHooks(Hooks): |
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# def action_pending(self, time, action): |
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# print("action_pending", time, action.label) |
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# def action_ready(self, time, action): |
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# print("action_ready", time, action.label) |
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# def action_canceled(self, time, action): |
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# print("action_canceled", time, action.label) |
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# def action_started(self, time, action): |
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# print("action_started", time, action.label) |
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# def action_printed(self, time, action, text): |
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# print("action_printed", time, action.label, text) |
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# def action_successful(self, time, action, return_value): |
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# print("action_successful", time, action.label, return_value) |
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# def action_failed(self, time, action, exception): |
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# print("action_failed", time, action.label, exception) |
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