Remove a bunch of dead code from webkitpy

Tools/Scripts/webkitpy/tool/bot/queueengine_unittest.py

-# Copyright (c) 2009 Google Inc. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-# 
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#     * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-# 
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-import datetime
-import os
-import shutil
-import tempfile
-import threading
-import unittest2 as unittest
-
-from webkitpy.common.system.executive import ScriptError
-from webkitpy.common.system.outputcapture import OutputCapture
-from webkitpy.tool.bot.queueengine import QueueEngine, QueueEngineDelegate, TerminateQueue
-
-
-class LoggingDelegate(QueueEngineDelegate):
-    def __init__(self, test):
-        self._test = test
-        self._callbacks = []
-        self._run_before = False
-        self.stop_message = None
-
-    expected_callbacks = [
-        'queue_log_path',
-        'begin_work_queue',
-        'should_continue_work_queue',
-        'next_work_item',
-        'work_item_log_path',
-        'process_work_item',
-        'should_continue_work_queue',
-        'stop_work_queue',
-    ]
-
-    def record(self, method_name):
-        self._callbacks.append(method_name)
-
-    def queue_log_path(self):
-        self.record("queue_log_path")
-        return os.path.join(self._test.temp_dir, "queue_log_path")
-
-    def work_item_log_path(self, work_item):
-        self.record("work_item_log_path")
-        return os.path.join(self._test.temp_dir, "work_log_path", "%s.log" % work_item)
-
-    def begin_work_queue(self):
-        self.record("begin_work_queue")
-
-    def should_continue_work_queue(self):
-        self.record("should_continue_work_queue")
-        if not self._run_before:
-            self._run_before = True
-            return True
-        return False
-
-    def next_work_item(self):
-        self.record("next_work_item")
-        return "work_item"
-
-    def process_work_item(self, work_item):
-        self.record("process_work_item")
-        self._test.assertEqual(work_item, "work_item")
-        return True
-
-    def handle_unexpected_error(self, work_item, message):
-        self.record("handle_unexpected_error")
-        self._test.assertEqual(work_item, "work_item")
-
-    def stop_work_queue(self, message):
-        self.record("stop_work_queue")
-        self.stop_message = message
-
-
-class RaisingDelegate(LoggingDelegate):
-    def __init__(self, test, exception):
-        LoggingDelegate.__init__(self, test)
-        self._exception = exception
-
-    def process_work_item(self, work_item):
-        self.record("process_work_item")
-        raise self._exception
-
-
-class FastQueueEngine(QueueEngine):
-    def __init__(self, delegate):
-        QueueEngine.__init__(self, "fast-queue", delegate, threading.Event())
-
-    # No sleep for the wicked.
-    seconds_to_sleep = 0
-
-    def _sleep(self, message):
-        pass
-
-
-class QueueEngineTest(unittest.TestCase):
-    def test_trivial(self):
-        delegate = LoggingDelegate(self)
-        self._run_engine(delegate)
-        self.assertEqual(delegate.stop_message, "Delegate terminated queue.")
-        self.assertEqual(delegate._callbacks, LoggingDelegate.expected_callbacks)
-        self.assertTrue(os.path.exists(os.path.join(self.temp_dir, "queue_log_path")))
-        self.assertTrue(os.path.exists(os.path.join(self.temp_dir, "work_log_path", "work_item.log")))
-
-    def test_unexpected_error(self):
-        delegate = RaisingDelegate(self, ScriptError(exit_code=3))
-        self._run_engine(delegate)
-        expected_callbacks = LoggingDelegate.expected_callbacks[:]
-        work_item_index = expected_callbacks.index('process_work_item')
-        # The unexpected error should be handled right after process_work_item starts
-        # but before any other callback.  Otherwise callbacks should be normal.
-        expected_callbacks.insert(work_item_index + 1, 'handle_unexpected_error')
-        self.assertEqual(delegate._callbacks, expected_callbacks)
-
-    def test_handled_error(self):
-        delegate = RaisingDelegate(self, ScriptError(exit_code=QueueEngine.handled_error_code))
-        self._run_engine(delegate)
-        self.assertEqual(delegate._callbacks, LoggingDelegate.expected_callbacks)
-
-    def _run_engine(self, delegate, engine=None, termination_message=None):
-        if not engine:
-            engine = QueueEngine("test-queue", delegate, threading.Event())
-        if not termination_message:
-            termination_message = "Delegate terminated queue."
-        expected_logs = "\n%s\n" % termination_message
-        OutputCapture().assert_outputs(self, engine.run, expected_logs=expected_logs)
-
-    def _test_terminating_queue(self, exception, termination_message):
-        work_item_index = LoggingDelegate.expected_callbacks.index('process_work_item')
-        # The terminating error should be handled right after process_work_item.
-        # There should be no other callbacks after stop_work_queue.
-        expected_callbacks = LoggingDelegate.expected_callbacks[:work_item_index + 1]
-        expected_callbacks.append("stop_work_queue")
-
-        delegate = RaisingDelegate(self, exception)
-        self._run_engine(delegate, termination_message=termination_message)
-
-        self.assertEqual(delegate._callbacks, expected_callbacks)
-        self.assertEqual(delegate.stop_message, termination_message)
-
-    def test_terminating_error(self):
-        self._test_terminating_queue(KeyboardInterrupt(), "User terminated queue.")
-        self._test_terminating_queue(TerminateQueue(), "TerminateQueue exception received.")
-
-    def test_now(self):
-        """Make sure there are no typos in the QueueEngine.now() method."""
-        engine = QueueEngine("test", None, None)
-        self.assertIsInstance(engine._now(), datetime.datetime)
-
-    def test_sleep_message(self):
-        engine = QueueEngine("test", None, None)
-        engine._now = lambda: datetime.datetime(2010, 1, 1)
-        expected_sleep_message = "MESSAGE Sleeping until 2010-01-01 00:02:00 (120 seconds)."
-        self.assertEqual(engine._sleep_message("MESSAGE"), expected_sleep_message)
-
-    def setUp(self):
-        self.temp_dir = tempfile.mkdtemp(suffix="work_queue_test_logs")
-
-    def tearDown(self):
-        shutil.rmtree(self.temp_dir)