bazarr/libs/tqdm/tests/tests_concurrent.py

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"""
Tests for `tqdm.contrib.concurrent`.
"""
from warnings import catch_warnings
from tqdm.contrib.concurrent import thread_map, process_map
from tests_tqdm import with_setup, pretest, posttest, SkipTest, StringIO, \
closing
def incr(x):
"""Dummy function"""
return x + 1
@with_setup(pretest, posttest)
def test_thread_map():
"""Test contrib.concurrent.thread_map"""
with closing(StringIO()) as our_file:
a = range(9)
b = [i + 1 for i in a]
try:
assert thread_map(lambda x: x + 1, a, file=our_file) == b
except ImportError:
raise SkipTest
assert thread_map(incr, a, file=our_file) == b
@with_setup(pretest, posttest)
def test_process_map():
"""Test contrib.concurrent.process_map"""
with closing(StringIO()) as our_file:
a = range(9)
b = [i + 1 for i in a]
try:
assert process_map(incr, a, file=our_file) == b
except ImportError:
raise SkipTest
def test_chunksize_warning():
"""Test contrib.concurrent.process_map chunksize warnings"""
try:
from unittest.mock import patch
except ImportError:
raise SkipTest
for iterables, should_warn in [
([], False),
(['x'], False),
([()], False),
(['x', ()], False),
(['x' * 1001], True),
(['x' * 100, ('x',) * 1001], True),
]:
with patch('tqdm.contrib.concurrent._executor_map'):
with catch_warnings(record=True) as w:
process_map(incr, *iterables)
assert should_warn == bool(w)