def testPF_get_progress(self):
"""
Tests set/get_progress of ProgressiveFuture
"""
f = ProgressiveFuture()
now = time.time()
start, end = now + 1, now + 2
# try to update progress
f.set_progress(start, end)
startf, endf = f.get_progress()
self.assertEqual(start, startf)
self.assertEqual(end, endf)
# "start" the task
f.set_running_or_notify_cancel()
startf, endf = f.get_progress()
self.assertLessEqual(startf, time.time())
self.assertEqual(end, endf)
time.sleep(0.1)
# "finish" the task
f.set_result(None)
self.assertTrue(f.done())
startf, endf = f.get_progress()
self.assertLessEqual(startf, time.time())
self.assertLessEqual(endf, time.time())
def testPF_get_progress(self):
"""
Tests set/get_progress of ProgressiveFuture
"""
f = ProgressiveFuture()
now = time.time()
start, end = now + 1, now + 2
# try to update progress
f.set_progress(start, end)
startf, endf = f.get_progress()
self.assertEqual(start, startf)
self.assertEqual(end, endf)
# "start" the task
f.set_running_or_notify_cancel()
startf, endf = f.get_progress()
self.assertLessEqual(startf, time.time())
self.assertEqual(end, endf)
time.sleep(0.1)
# "finish" the task
f.set_result(None)
self.assertTrue(f.done())
startf, endf = f.get_progress()
self.assertLessEqual(startf, time.time())
self.assertLessEqual(endf, time.time())
def test_progress(self):
"""Test progress update for future."""
self.start = None # for the caller
self.end = None # for the caller
now = time.time()
# start is default time now if not specified
future = ProgressiveFuture(end=now + 1)
future.task_canceller = self.cancel_task
# caller request future to indicate change in time estimation
future.add_update_callback(self.on_progress_update)
# update the progress
future.set_progress(end=now + 2)
# check end time was updated
self.assertEqual(self.end, now + 2)
# future not running yet, so start should be after "now"
self.assertGreaterEqual(self.start, now)
# "start" the task (set the future running)
future.set_running_or_notify_cancel()
# the progress should be updated and thus .start should be updated now with the current time
expected_start = time.time()
self.assertTrue(expected_start - 0.1 <= self.start <= expected_start)
time.sleep(0.1) # wait a bit
now = time.time()
# while running, update the estimated ending time
future.set_progress(end=now + 1)
# the progress should be updated and thus .end should be in 1 sec from now
expected_end = now + 1
self.assertTrue(expected_end - 0.1 <= self.end <= expected_end)
def test_progress(self):
"""Test progress update of future."""
self.start = None # for the caller
self.end = None # for the caller
fs = {}
f1 = ProgressiveFuture()
f1.task_canceller = self.cancel_task
f2 = ProgressiveFuture()
f2.task_canceller = self.cancel_task
fs[f1] = 10 # estimated duration in seconds
fs[f2] = 15 # estimated duration in seconds
time_creation_batch_future = time.time()
batch_future = ProgressiveBatchFuture(fs)
batch_future.add_update_callback(self.on_progress_update)
# check estimated time for batch future is sum of estimated time for sub-futures
self.assertEqual(self.end - self.start, fs[f1] + fs[f2])
# "start" the sub-tasks; the batch task is already started at creation
f1.set_running_or_notify_cancel()
now = time.time()
f1.set_progress(end=now + 2) # update the progress on one sub-future
# check that the estimated end time of the batch futures has been updated
expected_end = now + fs[f2] + 2
self.assertTrue(expected_end - 0.1 <= self.end <= expected_end + 0.1)
# check that the start of the batch future is after creation of batch future
self.assertGreaterEqual(self.start, time_creation_batch_future)
now = time.time()
f1.set_result(None) # set sub-future done
# check estimated time of batch future is equal to f2
expected_end = now + fs[f2]
self.assertTrue(expected_end - 0.1 <= self.end <= expected_end + 0.1)
f2.set_running_or_notify_cancel()
# check time of batch future is still equal to f2 as future just started
expected_end = now + fs[f2]
self.assertTrue(expected_end - 0.1 <= self.end <= expected_end + 0.1)
now = time.time()
f2.set_progress(end=now + 10) # update the progress on one sub-future
# check that the estimated end time of the batch futures has been updated
expected_end = now + 10
self.assertTrue(expected_end - 0.1 <= self.end <= expected_end + 0.1)
f2.set_result(None) # set sub-future done
# check batch future automatically finished when all sub-futures finished
self.assertTrue(batch_future.done())
self.assertIsNone(
batch_future.result()) # result of successful batch future is None
def testProgressiveFuture(self):
"""
Only tests a simple ProgressiveFuture
"""
self.cancelled = 0
self.start = None
self.end = None
future = ProgressiveFuture()
future.task_canceller = self.cancel_task
now = time.time()
# try to update progress
future.set_progress(end=now + 1)
future.add_update_callback(self.on_progress_update)
future.set_progress(end=now + 2) # should say about 2 s left
self.assertEqual(self.end, now + 2)
# before being started, start should always be (a bit) in the future
self.assertGreaterEqual(self.start, now)
# "start" the task
future.set_running_or_notify_cancel()
self.assertTrue(0 <= time.time() - self.start < 0.1)
time.sleep(0.1)
now = time.time()
future.set_progress(end=now + 1)
self.assertTrue(0.9 <= self.end - time.time() < 1)
# try to cancel while running
future.cancel()
self.assertTrue(future.cancelled())
self.assertRaises(CancelledError, future.result, 1)
self.assertLessEqual(self.end, time.time())
self.assertEqual(self.cancelled, 1)
def testProgressiveFuture(self):
"""
Only tests a simple ProgressiveFuture
"""
self.cancelled = 0
self.start = None
self.end = None
future = ProgressiveFuture()
future.task_canceller = self.cancel_task
now = time.time()
# try to update progress
future.set_progress(end=now + 1)
future.add_update_callback(self.on_progress_update)
future.set_progress(end=now + 2) # should say about 2 s left
self.assertEqual(self.end, now + 2)
# before being started, start should always be (a bit) in the future
self.assertGreaterEqual(self.start, now)
# "start" the task
future.set_running_or_notify_cancel()
self.assertTrue(0 <= time.time() - self.start < 0.1)
time.sleep(0.1)
now = time.time()
future.set_progress(end=now + 1)
self.assertTrue(0.9 <= self.end - time.time() < 1)
# try to cancel while running
future.cancel()
self.assertTrue(future.cancelled())
self.assertRaises(CancelledError, future.result, 1)
self.assertLessEqual(self.end, time.time())
self.assertEqual(self.cancelled, 1)
def test_get_progress(self):
"""Tests retrieving the progress from the future."""
f = ProgressiveFuture()
now = time.time()
start, end = now + 1, now + 2
f.set_progress(start, end) # update progress
start_f, end_f = f.get_progress() # retrieve progress
# check progress returned is same as progress set beforehand
self.assertEqual(start, start_f)
self.assertEqual(end, end_f)
# "start" the task (set the future running)
f.set_running_or_notify_cancel() # updates start and end
start_f, end_f = f.get_progress() # retrieve the progress
now = time.time()
# check that start is a tiny bit before now
self.assertLessEqual(start_f, time.time())
# check that expected duration is still 1s as task should take 1s
self.assertAlmostEqual(start_f + 1, end_f)
# check that the estimated end time of the futures has been updated
expected_end = now + 1
self.assertTrue(expected_end - 0.1 <= end_f <=
expected_end + 0.1) # end should be 1s in the future
time.sleep(0.1) # wait a bit
# "finish" the task
f.set_result(None)
self.assertTrue(f.done())
start_f, end_f = f.get_progress()
# check that start is now in the past as future started in the past
self.assertLessEqual(start_f, time.time())
# check that end is also now in the past as future already finished
self.assertLessEqual(end_f, time.time())
