|
import unittest |
|
import time |
|
|
|
from iterators import TimeoutIterator |
|
|
|
|
|
def iter_simple(): |
|
yield 1 |
|
yield 2 |
|
|
|
|
|
def iter_with_sleep(): |
|
yield 1 |
|
time.sleep(0.6) |
|
yield 2 |
|
time.sleep(0.4) |
|
yield 3 |
|
|
|
|
|
def iter_with_exception(): |
|
yield 1 |
|
yield 2 |
|
raise Exception |
|
yield 3 |
|
|
|
|
|
class TestTimeoutIterator(unittest.TestCase): |
|
|
|
def test_normal_iteration(self): |
|
i = iter_simple() |
|
it = TimeoutIterator(i) |
|
|
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), 2) |
|
|
|
self.assertRaises(StopIteration, next, it) |
|
self.assertRaises(StopIteration, next, it) |
|
|
|
def test_normal_iteration_for_loop(self): |
|
i = iter_simple() |
|
it = TimeoutIterator(i) |
|
iterResults = [] |
|
for x in it: |
|
iterResults.append(x) |
|
self.assertEqual(iterResults, [1, 2]) |
|
|
|
def test_timeout_block(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i) |
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), 2) |
|
self.assertEqual(next(it), 3) |
|
self.assertRaises(StopIteration, next, it) |
|
self.assertRaises(StopIteration, next, it) |
|
|
|
def test_timeout_block_for_loop(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i) |
|
iterResults = [] |
|
for x in it: |
|
iterResults.append(x) |
|
self.assertEqual(iterResults, [1, 2, 3]) |
|
|
|
def test_fixed_timeout(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i, timeout=0.5) |
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), it.get_sentinel()) |
|
|
|
self.assertEqual(next(it), 2) |
|
self.assertEqual(next(it), 3) |
|
self.assertRaises(StopIteration, next, it) |
|
|
|
def test_fixed_timeout_for_loop(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i, timeout=0.5) |
|
iterResults = [] |
|
for x in it: |
|
iterResults.append(x) |
|
self.assertEqual(iterResults, [1, it.get_sentinel(), 2, 3]) |
|
|
|
def test_timeout_update(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i, timeout=0.5) |
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), it.get_sentinel()) |
|
|
|
it.set_timeout(0.3) |
|
self.assertEqual(next(it), 2) |
|
self.assertEqual(next(it), it.get_sentinel()) |
|
|
|
self.assertEqual(next(it), 3) |
|
self.assertRaises(StopIteration, next, it) |
|
|
|
def test_custom_sentinel(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i, timeout=0.5, sentinel="END") |
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), "END") |
|
|
|
self.assertEqual(next(it), 2) |
|
self.assertEqual(next(it), 3) |
|
self.assertRaises(StopIteration, next, it) |
|
|
|
def test_feature_timeout_reset(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i, timeout=0.5, reset_on_next=True) |
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), 2) |
|
self.assertEqual(next(it), 3) |
|
self.assertRaises(StopIteration, next, it) |
|
|
|
def test_function_set_reset_on_next(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i, timeout=0.35, reset_on_next=False) |
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), it.get_sentinel()) |
|
it.set_reset_on_next(True) |
|
self.assertEqual(next(it), 2) |
|
self.assertEqual(next(it), 3) |
|
self.assertRaises(StopIteration, next, it) |
|
|
|
def test_iterator_raises_exception(self): |
|
i = iter_with_exception() |
|
it = TimeoutIterator(i, timeout=0.5, sentinel="END") |
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), 2) |
|
self.assertRaises(Exception, next, it) |
|
self.assertRaises(StopIteration, next, it) |
|
|
|
def test_interrupt_thread(self): |
|
i = iter_with_sleep() |
|
it = TimeoutIterator(i, timeout=0.5, sentinel="END") |
|
self.assertEqual(next(it), 1) |
|
self.assertEqual(next(it), it.get_sentinel()) |
|
it.interrupt() |
|
self.assertEqual(next(it), 2) |
|
self.assertRaises(StopIteration, next, it) |
|
|
