forked from spotify/luigi
/
range_test.py
655 lines (546 loc) · 24.5 KB
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range_test.py
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# -*- coding: utf-8 -*-
#
# Copyright 2012-2015 Spotify AB
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import datetime
import fnmatch
from helpers import unittest
import luigi
import mock
from luigi.mock import MockTarget, MockFileSystem
from luigi.tools.range import (RangeDaily, RangeDailyBase, RangeEvent, RangeHourly, RangeHourlyBase, _constrain_glob,
_get_filesystems_and_globs)
class CommonDateHourTask(luigi.Task):
dh = luigi.DateHourParameter()
def output(self):
return MockTarget(self.dh.strftime('/n2000y01a05n/%Y_%m-_-%daww/21mm%Hdara21/ooo'))
class CommonDateTask(luigi.Task):
d = luigi.DateParameter()
def output(self):
return MockTarget(self.d.strftime('/n2000y01a05n/%Y_%m-_-%daww/21mm01dara21/ooo'))
task_a_paths = [
'TaskA/2014-03-20/18',
'TaskA/2014-03-20/21',
'TaskA/2014-03-20/23',
'TaskA/2014-03-21/00',
'TaskA/2014-03-21/00.attempt.1',
'TaskA/2014-03-21/00.attempt.2',
'TaskA/2014-03-21/01',
'TaskA/2014-03-21/02',
'TaskA/2014-03-21/03.attempt-temp-2014-03-21T13-22-58.165969',
'TaskA/2014-03-21/03.attempt.1',
'TaskA/2014-03-21/03.attempt.2',
'TaskA/2014-03-21/03.attempt.3',
'TaskA/2014-03-21/03.attempt.latest',
'TaskA/2014-03-21/04.attempt-temp-2014-03-21T13-23-09.078249',
'TaskA/2014-03-21/12',
'TaskA/2014-03-23/12',
]
task_b_paths = [
'TaskB/no/worries2014-03-20/23',
'TaskB/no/worries2014-03-21/01',
'TaskB/no/worries2014-03-21/03',
'TaskB/no/worries2014-03-21/04.attempt-yadayada',
'TaskB/no/worries2014-03-21/05',
]
mock_contents = task_a_paths + task_b_paths
expected_a = [
'TaskA(dh=2014-03-20T17)',
'TaskA(dh=2014-03-20T19)',
'TaskA(dh=2014-03-20T20)',
]
# expected_reverse = [
# ]
expected_wrapper = [
'CommonWrapperTask(dh=2014-03-21T00)',
'CommonWrapperTask(dh=2014-03-21T02)',
'CommonWrapperTask(dh=2014-03-21T03)',
'CommonWrapperTask(dh=2014-03-21T04)',
'CommonWrapperTask(dh=2014-03-21T05)',
]
class TaskA(luigi.Task):
dh = luigi.DateHourParameter()
def output(self):
return MockTarget(self.dh.strftime('TaskA/%Y-%m-%d/%H'))
class TaskB(luigi.Task):
dh = luigi.DateHourParameter()
complicator = luigi.Parameter()
def output(self):
return MockTarget(self.dh.strftime('TaskB/%%s%Y-%m-%d/%H') % self.complicator)
class TaskC(luigi.Task):
dh = luigi.DateHourParameter()
def output(self):
return MockTarget(self.dh.strftime('not/a/real/path/%Y-%m-%d/%H'))
class CommonWrapperTask(luigi.WrapperTask):
dh = luigi.DateHourParameter()
def requires(self):
yield TaskA(dh=self.dh)
yield TaskB(dh=self.dh, complicator='no/worries') # str(self.dh) would complicate beyond working
def mock_listdir(contents):
def contents_listdir(_, glob):
for path in fnmatch.filter(contents, glob + '*'):
yield path
return contents_listdir
def mock_exists_always_true(_, _2):
yield True
def mock_exists_always_false(_, _2):
yield False
class ConstrainGlobTest(unittest.TestCase):
def test_limit(self):
glob = '/[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9]/[0-9][0-9]'
paths = [(datetime.datetime(2013, 12, 31, 5) + datetime.timedelta(hours=h)).strftime('/%Y/%m/%d/%H') for h in range(40)]
self.assertEqual(sorted(_constrain_glob(glob, paths)), [
'/2013/12/31/[0-2][0-9]',
'/2014/01/01/[0-2][0-9]',
])
paths.pop(26)
self.assertEqual(sorted(_constrain_glob(glob, paths, 6)), [
'/2013/12/31/0[5-9]',
'/2013/12/31/1[0-9]',
'/2013/12/31/2[0-3]',
'/2014/01/01/0[012345689]',
'/2014/01/01/1[0-9]',
'/2014/01/01/2[0]',
])
self.assertEqual(sorted(_constrain_glob(glob, paths[:7], 10)), [
'/2013/12/31/05',
'/2013/12/31/06',
'/2013/12/31/07',
'/2013/12/31/08',
'/2013/12/31/09',
'/2013/12/31/10',
'/2013/12/31/11',
])
def test_no_wildcards(self):
glob = '/2014/01'
paths = '/2014/01'
self.assertEqual(_constrain_glob(glob, paths), [
'/2014/01',
])
def datetime_to_epoch(dt):
td = dt - datetime.datetime(1970, 1, 1)
return td.days * 86400 + td.seconds + td.microseconds / 1E6
class RangeDailyBaseTest(unittest.TestCase):
maxDiff = None
def setUp(self):
# yucky to create separate callbacks; would be nicer if the callback received an instance of a subclass of Event, so one callback could accumulate all types
@RangeDailyBase.event_handler(RangeEvent.DELAY)
def callback_delay(*args):
self.events.setdefault(RangeEvent.DELAY, []).append(args)
@RangeDailyBase.event_handler(RangeEvent.COMPLETE_COUNT)
def callback_complete_count(*args):
self.events.setdefault(RangeEvent.COMPLETE_COUNT, []).append(args)
@RangeDailyBase.event_handler(RangeEvent.COMPLETE_FRACTION)
def callback_complete_fraction(*args):
self.events.setdefault(RangeEvent.COMPLETE_FRACTION, []).append(args)
self.events = {}
def test_consistent_formatting(self):
task = RangeDailyBase(of='CommonDateTask',
start=datetime.date(2016, 1, 1))
self.assertEqual(task._format_range([datetime.datetime(2016, 1, 2, 13), datetime.datetime(2016, 2, 29, 23)]), '[2016-01-02, 2016-02-29]')
def _empty_subcase(self, kwargs, expected_events):
calls = []
class RangeDailyDerived(RangeDailyBase):
def missing_datetimes(*args):
calls.append(args)
return args[-1][:5]
task = RangeDailyDerived(of='CommonDateTask',
**kwargs)
self.assertEqual(task.requires(), [])
self.assertEqual(calls, [])
self.assertEqual(task.requires(), [])
self.assertEqual(calls, []) # subsequent requires() should return the cached result, never call missing_datetimes
self.assertEqual(self.events, expected_events)
self.assertTrue(task.complete())
def test_stop_before_days_back(self):
# nothing to do because stop is earlier
self._empty_subcase(
{
'now': datetime_to_epoch(datetime.datetime(2015, 1, 1, 4)),
'stop': datetime.date(2014, 3, 20),
'days_back': 4,
'days_forward': 20,
'reverse': True,
},
{
'event.tools.range.delay': [
('CommonDateTask', 0),
],
'event.tools.range.complete.count': [
('CommonDateTask', 0),
],
'event.tools.range.complete.fraction': [
('CommonDateTask', 1.),
],
}
)
def _nonempty_subcase(self, kwargs, expected_finite_datetimes_range, expected_requires, expected_events):
calls = []
class RangeDailyDerived(RangeDailyBase):
def missing_datetimes(*args):
calls.append(args)
return args[-1][:7]
task = RangeDailyDerived(of='CommonDateTask',
**kwargs)
self.assertEqual(list(map(str, task.requires())), expected_requires)
self.assertEqual(calls[0][1], CommonDateTask)
self.assertEqual((min(calls[0][2]), max(calls[0][2])), expected_finite_datetimes_range)
self.assertEqual(list(map(str, task.requires())), expected_requires)
self.assertEqual(len(calls), 1) # subsequent requires() should return the cached result, not call missing_datetimes again
self.assertEqual(self.events, expected_events)
self.assertFalse(task.complete())
def test_start_long_before_long_days_back_and_with_long_days_forward(self):
self._nonempty_subcase(
{
'now': datetime_to_epoch(datetime.datetime(2017, 10, 22, 12, 4, 29)),
'start': datetime.date(2011, 3, 20),
'stop': datetime.date(2025, 1, 29),
'task_limit': 4,
'days_back': 3 * 365,
'days_forward': 3 * 365,
},
(datetime.datetime(2014, 10, 24), datetime.datetime(2020, 10, 21)),
[
'CommonDateTask(d=2014-10-24)',
'CommonDateTask(d=2014-10-25)',
'CommonDateTask(d=2014-10-26)',
'CommonDateTask(d=2014-10-27)',
],
{
'event.tools.range.delay': [
('CommonDateTask', 3750),
],
'event.tools.range.complete.count': [
('CommonDateTask', 5057),
],
'event.tools.range.complete.fraction': [
('CommonDateTask', 5057. / (5057 + 7)),
],
}
)
class RangeHourlyBaseTest(unittest.TestCase):
maxDiff = None
def setUp(self):
# yucky to create separate callbacks; would be nicer if the callback received an instance of a subclass of Event, so one callback could accumulate all types
@RangeHourlyBase.event_handler(RangeEvent.DELAY)
def callback_delay(*args):
self.events.setdefault(RangeEvent.DELAY, []).append(args)
@RangeHourlyBase.event_handler(RangeEvent.COMPLETE_COUNT)
def callback_complete_count(*args):
self.events.setdefault(RangeEvent.COMPLETE_COUNT, []).append(args)
@RangeHourlyBase.event_handler(RangeEvent.COMPLETE_FRACTION)
def callback_complete_fraction(*args):
self.events.setdefault(RangeEvent.COMPLETE_FRACTION, []).append(args)
self.events = {}
def test_consistent_formatting(self):
task = RangeHourlyBase(of='CommonDateHourTask',
start=datetime.datetime(2016, 1, 1))
self.assertEqual(task._format_range([datetime.datetime(2016, 1, 2, 13), datetime.datetime(2016, 2, 29, 23)]), '[2016-01-02T13, 2016-02-29T23]')
def _empty_subcase(self, kwargs, expected_events):
calls = []
class RangeHourlyDerived(RangeHourlyBase):
def missing_datetimes(*args):
calls.append(args)
return args[-1][:5]
task = RangeHourlyDerived(of='CommonDateHourTask',
**kwargs)
self.assertEqual(task.requires(), [])
self.assertEqual(calls, [])
self.assertEqual(task.requires(), [])
self.assertEqual(calls, []) # subsequent requires() should return the cached result, never call missing_datetimes
self.assertEqual(self.events, expected_events)
self.assertTrue(task.complete())
def test_start_after_hours_forward(self):
# nothing to do because start is later
self._empty_subcase(
{
'now': datetime_to_epoch(datetime.datetime(2000, 1, 1, 4)),
'start': datetime.datetime(2014, 3, 20, 17),
'hours_back': 4,
'hours_forward': 20,
},
{
'event.tools.range.delay': [
('CommonDateHourTask', 0),
],
'event.tools.range.complete.count': [
('CommonDateHourTask', 0),
],
'event.tools.range.complete.fraction': [
('CommonDateHourTask', 1.),
],
}
)
def _nonempty_subcase(self, kwargs, expected_finite_datetimes_range, expected_requires, expected_events):
calls = []
class RangeHourlyDerived(RangeHourlyBase):
def missing_datetimes(*args):
calls.append(args)
return args[-1][:7]
task = RangeHourlyDerived(of='CommonDateHourTask',
**kwargs)
self.assertEqual(list(map(str, task.requires())), expected_requires)
self.assertEqual(calls[0][1], CommonDateHourTask)
self.assertEqual((min(calls[0][2]), max(calls[0][2])), expected_finite_datetimes_range)
self.assertEqual(list(map(str, task.requires())), expected_requires)
self.assertEqual(len(calls), 1) # subsequent requires() should return the cached result, not call missing_datetimes again
self.assertEqual(self.events, expected_events)
self.assertFalse(task.complete())
def test_start_long_before_hours_back(self):
self._nonempty_subcase(
{
'now': datetime_to_epoch(datetime.datetime(2000, 1, 1, 4)),
'start': datetime.datetime(1960, 3, 2, 1),
'hours_back': 5,
'hours_forward': 20,
},
(datetime.datetime(1999, 12, 31, 23), datetime.datetime(2000, 1, 1, 23)),
[
'CommonDateHourTask(dh=1999-12-31T23)',
'CommonDateHourTask(dh=2000-01-01T00)',
'CommonDateHourTask(dh=2000-01-01T01)',
'CommonDateHourTask(dh=2000-01-01T02)',
'CommonDateHourTask(dh=2000-01-01T03)',
'CommonDateHourTask(dh=2000-01-01T04)',
'CommonDateHourTask(dh=2000-01-01T05)',
],
{
'event.tools.range.delay': [
('CommonDateHourTask', 25), # because of short hours_back we're oblivious to those 40 preceding years
],
'event.tools.range.complete.count': [
('CommonDateHourTask', 349192),
],
'event.tools.range.complete.fraction': [
('CommonDateHourTask', 349192. / (349192 + 7)),
],
}
)
def test_start_after_long_hours_back(self):
self._nonempty_subcase(
{
'now': datetime_to_epoch(datetime.datetime(2014, 10, 22, 12, 4, 29)),
'start': datetime.datetime(2014, 3, 20, 17),
'task_limit': 4,
'hours_back': 365 * 24,
},
(datetime.datetime(2014, 3, 20, 17), datetime.datetime(2014, 10, 22, 12)),
[
'CommonDateHourTask(dh=2014-03-20T17)',
'CommonDateHourTask(dh=2014-03-20T18)',
'CommonDateHourTask(dh=2014-03-20T19)',
'CommonDateHourTask(dh=2014-03-20T20)',
],
{
'event.tools.range.delay': [
('CommonDateHourTask', 5180),
],
'event.tools.range.complete.count': [
('CommonDateHourTask', 5173),
],
'event.tools.range.complete.fraction': [
('CommonDateHourTask', 5173. / (5173 + 7)),
],
}
)
def test_start_long_before_long_hours_back_and_with_long_hours_forward(self):
self._nonempty_subcase(
{
'now': datetime_to_epoch(datetime.datetime(2017, 10, 22, 12, 4, 29)),
'start': datetime.datetime(2011, 3, 20, 17),
'task_limit': 4,
'hours_back': 3 * 365 * 24,
'hours_forward': 3 * 365 * 24,
},
(datetime.datetime(2014, 10, 23, 13), datetime.datetime(2020, 10, 21, 12)),
[
'CommonDateHourTask(dh=2014-10-23T13)',
'CommonDateHourTask(dh=2014-10-23T14)',
'CommonDateHourTask(dh=2014-10-23T15)',
'CommonDateHourTask(dh=2014-10-23T16)',
],
{
'event.tools.range.delay': [
('CommonDateHourTask', 52560),
],
'event.tools.range.complete.count': [
('CommonDateHourTask', 84061),
],
'event.tools.range.complete.fraction': [
('CommonDateHourTask', 84061. / (84061 + 7)),
],
}
)
class FilesystemInferenceTest(unittest.TestCase):
def _test_filesystems_and_globs(self, datetime_to_task, datetime_to_re, expected):
actual = list(_get_filesystems_and_globs(datetime_to_task, datetime_to_re))
self.assertEqual(len(actual), len(expected))
for (actual_filesystem, actual_glob), (expected_filesystem, expected_glob) in zip(actual, expected):
self.assertTrue(isinstance(actual_filesystem, expected_filesystem))
self.assertEqual(actual_glob, expected_glob)
def test_date_glob_successfully_inferred(self):
self._test_filesystems_and_globs(
lambda d: CommonDateTask(d),
lambda d: d.strftime('(%Y).*(%m).*(%d)'),
[
(MockFileSystem, '/n2000y01a05n/[0-9][0-9][0-9][0-9]_[0-9][0-9]-_-[0-9][0-9]aww/21mm01dara21'),
]
)
def test_datehour_glob_successfully_inferred(self):
self._test_filesystems_and_globs(
lambda d: CommonDateHourTask(d),
lambda d: d.strftime('(%Y).*(%m).*(%d).*(%H)'),
[
(MockFileSystem, '/n2000y01a05n/[0-9][0-9][0-9][0-9]_[0-9][0-9]-_-[0-9][0-9]aww/21mm[0-9][0-9]dara21'),
]
)
def test_wrapped_datehour_globs_successfully_inferred(self):
self._test_filesystems_and_globs(
lambda d: CommonWrapperTask(d),
lambda d: d.strftime('(%Y).*(%m).*(%d).*(%H)'),
[
(MockFileSystem, 'TaskA/[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]'),
(MockFileSystem, 'TaskB/no/worries[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]'),
]
)
def test_inconsistent_output_datehour_glob_not_inferred(self):
class InconsistentlyOutputtingDateHourTask(luigi.Task):
dh = luigi.DateHourParameter()
def output(self):
base = self.dh.strftime('/even/%Y%m%d%H')
if self.dh.hour % 2 == 0:
return MockTarget(base)
else:
return {
'spi': MockTarget(base + '/something.spi'),
'spl': MockTarget(base + '/something.spl'),
}
def test_raise_not_implemented():
list(_get_filesystems_and_globs(
lambda d: InconsistentlyOutputtingDateHourTask(d),
lambda d: d.strftime('(%Y).*(%m).*(%d).*(%H)')))
self.assertRaises(NotImplementedError, test_raise_not_implemented)
def test_wrapped_inconsistent_datehour_globs_not_inferred(self):
class InconsistentlyParameterizedWrapperTask(luigi.WrapperTask):
dh = luigi.DateHourParameter()
def requires(self):
yield TaskA(dh=self.dh - datetime.timedelta(days=1))
yield TaskB(dh=self.dh, complicator='no/worries')
def test_raise_not_implemented():
list(_get_filesystems_and_globs(
lambda d: InconsistentlyParameterizedWrapperTask(d),
lambda d: d.strftime('(%Y).*(%m).*(%d).*(%H)')))
self.assertRaises(NotImplementedError, test_raise_not_implemented)
class RangeDailyTest(unittest.TestCase):
def test_bulk_complete_correctly_interfaced(self):
class BulkCompleteDailyTask(luigi.Task):
d = luigi.DateParameter()
@classmethod
def bulk_complete(self, parameter_tuples):
return list(parameter_tuples)[:-2]
def output(self):
raise RuntimeError("Shouldn't get called while resolving deps via bulk_complete")
task = RangeDaily(now=datetime_to_epoch(datetime.datetime(2015, 12, 1)),
of='BulkCompleteDailyTask',
start=datetime.date(2015, 11, 1),
stop=datetime.date(2015, 12, 1))
expected = [
'BulkCompleteDailyTask(d=2015-11-29)',
'BulkCompleteDailyTask(d=2015-11-30)',
]
actual = [t.task_id for t in task.requires()]
self.assertEqual(actual, expected)
@mock.patch('luigi.mock.MockFileSystem.listdir',
new=mock_listdir([
'/data/2014/p/v/z/2014_/_03-_-21octor/20/ZOOO',
'/data/2014/p/v/z/2014_/_03-_-23octor/20/ZOOO',
'/data/2014/p/v/z/2014_/_03-_-24octor/20/ZOOO',
]))
@mock.patch('luigi.mock.MockFileSystem.exists',
new=mock_exists_always_true)
def test_missing_tasks_correctly_required(self):
class SomeDailyTask(luigi.Task):
d = luigi.DateParameter()
def output(self):
return MockTarget(self.d.strftime('/data/2014/p/v/z/%Y_/_%m-_-%doctor/20/ZOOO'))
task = RangeDaily(now=datetime_to_epoch(datetime.datetime(2016, 4, 1)),
of='SomeDailyTask',
start=datetime.date(2014, 3, 20),
task_limit=3,
days_back=3 * 365)
expected = [
'SomeDailyTask(d=2014-03-20)',
'SomeDailyTask(d=2014-03-22)',
'SomeDailyTask(d=2014-03-25)',
]
actual = [t.task_id for t in task.requires()]
self.assertEqual(actual, expected)
class RangeHourlyTest(unittest.TestCase):
@mock.patch('luigi.mock.MockFileSystem.listdir', new=mock_listdir(mock_contents)) # fishy to mock the mock, but MockFileSystem doesn't support globs yet
@mock.patch('luigi.mock.MockFileSystem.exists',
new=mock_exists_always_true)
def test_missing_tasks_correctly_required(self):
for task_path in task_a_paths:
MockTarget(task_path)
task = RangeHourly(now=datetime_to_epoch(datetime.datetime(2016, 4, 1)),
of='TaskA',
start=datetime.datetime(2014, 3, 20, 17),
task_limit=3,
hours_back=3 * 365 * 24) # this test takes a few seconds. Since stop is not defined, finite_datetimes constitute many years to consider
actual = [t.task_id for t in task.requires()]
self.assertEqual(actual, expected_a)
@mock.patch('luigi.mock.MockFileSystem.listdir', new=mock_listdir(mock_contents))
@mock.patch('luigi.mock.MockFileSystem.exists',
new=mock_exists_always_true)
def test_missing_wrapper_tasks_correctly_required(self):
task = RangeHourly(
now=datetime_to_epoch(datetime.datetime(2040, 4, 1)),
of='CommonWrapperTask',
start=datetime.datetime(2014, 3, 20, 23),
stop=datetime.datetime(2014, 3, 21, 6),
hours_back=30 * 365 * 24)
actual = [t.task_id for t in task.requires()]
self.assertEqual(actual, expected_wrapper)
def test_bulk_complete_correctly_interfaced(self):
class BulkCompleteHourlyTask(luigi.Task):
dh = luigi.DateHourParameter()
@classmethod
def bulk_complete(cls, parameter_tuples):
return parameter_tuples[:-2]
def output(self):
raise RuntimeError("Shouldn't get called while resolving deps via bulk_complete")
task = RangeHourly(now=datetime_to_epoch(datetime.datetime(2015, 12, 1)),
of='BulkCompleteHourlyTask',
start=datetime.datetime(2015, 11, 1),
stop=datetime.datetime(2015, 12, 1))
expected = [
'BulkCompleteHourlyTask(dh=2015-11-30T22)',
'BulkCompleteHourlyTask(dh=2015-11-30T23)',
]
actual = [t.task_id for t in task.requires()]
self.assertEqual(actual, expected)
@mock.patch('luigi.mock.MockFileSystem.exists',
new=mock_exists_always_false)
def test_missing_directory(self):
task = RangeHourly(now=datetime_to_epoch(
datetime.datetime(2014, 4, 1)),
of='TaskC',
start=datetime.datetime(2014, 3, 20, 23),
stop=datetime.datetime(2014, 3, 21, 1))
self.assertFalse(task.complete())
expected = [
'TaskC(dh=2014-03-20T23)',
'TaskC(dh=2014-03-21T00)']
self.assertEqual([t.task_id for t in task.requires()], expected)