| 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) |
|
|
