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import asyncio
import unittest
import unittest.mock
from aiohttp import streams
class TestFlowControlStreamReader(unittest.TestCase):
def setUp(self):
self.stream = unittest.mock.Mock()
self.transp = self.stream.transport
self.loop = asyncio.new_event_loop()
asyncio.set_event_loop(None)
def tearDown(self):
self.loop.close()
def _make_one(self, *args, **kwargs):
return streams.FlowControlStreamReader(
self.stream, limit=1, loop=self.loop, *args, **kwargs)
def test_read(self):
r = self._make_one()
r.paused = True
r.feed_data(b'da', 2)
res = self.loop.run_until_complete(r.read(1))
self.assertEqual(res, b'd')
self.assertTrue(self.transp.resume_reading.called)
def test_readline(self):
r = self._make_one()
r.paused = True
r.feed_data(b'data\n', 5)
res = self.loop.run_until_complete(r.readline())
self.assertEqual(res, b'data\n')
self.assertTrue(self.transp.resume_reading.called)
def test_readany(self):
r = self._make_one()
r.paused = True
r.feed_data(b'data', 4)
res = self.loop.run_until_complete(r.readany())
self.assertEqual(res, b'data')
self.assertTrue(self.transp.resume_reading.called)
def test_readexactly(self):
r = self._make_one()
r.paused = True
r.feed_data(b'datadata', 8)
res = self.loop.run_until_complete(r.readexactly(2))
self.assertEqual(res, b'da')
self.assertTrue(self.transp.resume_reading.called)
def test_feed_data(self):
r = self._make_one()
r._stream.paused = False
r.feed_data(b'datadata', 8)
self.assertTrue(self.transp.pause_reading.called)
class FlowControlMixin:
def test_resume_on_init(self):
stream = unittest.mock.Mock()
stream.paused = True
streams.FlowControlDataQueue(stream, limit=1, loop=self.loop)
self.assertTrue(stream.transport.resume_reading.called)
self.assertFalse(stream.paused)
def test_no_transport_in_init(self):
stream = unittest.mock.Mock()
stream.paused = True
stream.transport = None
streams.FlowControlDataQueue(stream, limit=1, loop=self.loop)
self.assertTrue(stream.paused)
def test_feed_no_waiter(self):
out = self._make_one()
out.feed_data(object(), 100)
self.assertTrue(self.stream.transport.pause_reading.called)
def test_feed_no_transport(self):
self.stream.transport = None
out = self._make_one()
self.stream.paused = False
out.feed_data(object(), 100)
self.assertFalse(self.stream.paused)
def test_feed_with_waiter(self):
self.stream.paused = False
out = self._make_one()
read_task = asyncio.Task(out.read(), loop=self.loop)
def cb():
out.feed_data(object(), 100)
self.loop.call_soon(cb)
self.loop.run_until_complete(read_task)
self.assertFalse(self.stream.transport.pause_reading.called)
self.assertFalse(self.stream.paused)
def test_resume_on_read(self):
out = self._make_one()
out.feed_data(object(), 100)
self.assertTrue(self.stream.paused)
self.loop.run_until_complete(out.read())
self.assertTrue(self.stream.transport.resume_reading.called)
self.assertFalse(self.stream.paused)
def test_resume_on_read_no_transport(self):
item = object()
out = self._make_one()
out.feed_data(item, 100)
self.assertTrue(self.stream.paused)
self.stream.transport = None
res = self.loop.run_until_complete(out.read())
self.assertIs(res, item)
self.assertTrue(self.stream.paused)
def test_no_resume_on_read(self):
out = self._make_one()
out.feed_data(object(), 100)
out.feed_data(object(), 100)
out.feed_data(object(), 100)
self.assertTrue(self.stream.paused)
self.stream.transport.reset_mock()
self.loop.run_until_complete(out.read())
self.assertFalse(self.stream.transport.resume_reading.called)
self.assertTrue(self.stream.paused)
def test_pause_on_read(self):
out = self._make_one()
out._buffer.append((object(), 100))
out._buffer.append((object(), 100))
out._buffer.append((object(), 100))
out._size = 300
self.stream.paused = False
self.loop.run_until_complete(out.read())
self.assertTrue(self.stream.transport.pause_reading.called)
self.assertTrue(self.stream.paused)
def test_no_pause_on_read(self):
item = object()
out = self._make_one()
out._buffer.append((item, 100))
out._size = 100
self.stream.paused = False
res = self.loop.run_until_complete(out.read())
self.assertIs(res, item)
self.assertFalse(self.stream.transport.pause_reading.called)
self.assertFalse(self.stream.paused)
def test_no_pause_on_read_no_transport(self):
item = object()
out = self._make_one()
out._buffer.append((item, 100))
out._buffer.append((object(), 100))
out._buffer.append((object(), 100))
out._size = 300
self.stream.paused = False
self.stream.transport = None
res = self.loop.run_until_complete(out.read())
self.assertIs(res, item)
self.assertFalse(self.stream.paused)
class TestFlowControlDataQueue(unittest.TestCase, FlowControlMixin):
def setUp(self):
self.stream = unittest.mock.Mock()
self.loop = asyncio.new_event_loop()
asyncio.set_event_loop(None)
def tearDown(self):
self.loop.close()
def _make_one(self, *args, **kwargs):
return streams.FlowControlDataQueue(
self.stream, limit=1, loop=self.loop, *args, **kwargs)
class TestFlowControlChunksQueue(unittest.TestCase, FlowControlMixin):
def setUp(self):
self.stream = unittest.mock.Mock()
self.loop = asyncio.new_event_loop()
asyncio.set_event_loop(None)
def tearDown(self):
self.loop.close()
def _make_one(self, *args, **kwargs):
return streams.FlowControlChunksQueue(
self.stream, limit=1, loop=self.loop, *args, **kwargs)
def test_read_eof(self):
out = self._make_one()
read_task = asyncio.Task(out.read(), loop=self.loop)
def cb():
out.feed_eof()
self.loop.call_soon(cb)
self.loop.run_until_complete(read_task)
self.assertTrue(out.at_eof())
def test_read_until_eof(self):
item = object()
out = self._make_one()
out.feed_data(item, 1)
out.feed_eof()
data = self.loop.run_until_complete(out.read())
self.assertIs(data, item)
thing = self.loop.run_until_complete(out.read())
self.assertEqual(thing, b'')
self.assertTrue(out.at_eof())
def test_readany(self):
out = self._make_one()
self.assertIs(out.read.__func__, out.readany.__func__)
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