def test_filter_one_thread(self):
# running one thread shouldn't affect ordering
lst = [1, 3, 3, 7]
exp = [1, 7]
res = paralleltools.filter(lambda x: x != 3, lst, threads=1)
assert res == exp, res
def test_filter_large_input(self):
func = lambda x: x > 100500
lst = random.sample(xrange(10 ** 6), 10 ** 5)
exp = filter(func, lst)
res = paralleltools.filter(func, lst)
assert set(res) == set(exp)
def test_filter_dying_thread(self):
def dying(el):
if el == 3:
raise Exception("This exception shouldn't fail the tests")
return func(el)
func = lambda x: x != 1
lst = [1, 2, 3, 4]
exp = [2, 4]
res = paralleltools.filter(dying, lst)
assert set(res) == set(exp), res
def test_sync_filter(self):
lst = [1, 3, 3, 7]
exp = [1, 7]
res = paralleltools.filter(lambda x: x != 3, lst)
assert set(res) == set(exp), res
def test_filter_many_threads(self):
lst = [1, 3, 3, 7]
exp = [1, 7]
res = paralleltools.filter(lambda x: x != 3, lst, threads=20)
assert set(res) == set(exp), res
def test_filter_zero_threads(self):
test_func = lambda: paralleltools.filter(lambda x: x, [], threads=0)
self.assertRaises(ValueError, test_func)
def test_filter_empty(self):
res = paralleltools.filter(lambda x: True, [])
assert len(res) == 0, res
