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"""Tests for aiohttp/http_writer.py"""
import zlib
from unittest import mock
import pytest
from aiohttp import http
from aiohttp.test_utils import make_mocked_coro
@pytest.fixture
def buf():
return bytearray()
@pytest.fixture
def transport(buf):
transport = mock.Mock()
def write(chunk):
buf.extend(chunk)
transport.write.side_effect = write
transport.is_closing.return_value = False
return transport
@pytest.fixture
def protocol(loop, transport):
protocol = mock.Mock(transport=transport)
protocol._drain_helper = make_mocked_coro()
return protocol
def test_payloadwriter_properties(transport,
protocol, loop) -> None:
writer = http.StreamWriter(protocol, loop)
assert writer.protocol == protocol
assert writer.transport == transport
async def test_write_payload_eof(transport, protocol, loop) -> None:
write = transport.write = mock.Mock()
msg = http.StreamWriter(protocol, loop)
await msg.write(b'data1')
await msg.write(b'data2')
await msg.write_eof()
content = b''.join([c[1][0] for c in list(write.mock_calls)])
assert b'data1data2' == content.split(b'\r\n\r\n', 1)[-1]
async def test_write_payload_chunked(buf, protocol, transport, loop) -> None:
msg = http.StreamWriter(protocol, loop)
msg.enable_chunking()
await msg.write(b'data')
await msg.write_eof()
assert b'4\r\ndata\r\n0\r\n\r\n' == buf
async def test_write_payload_chunked_multiple(buf,
protocol,
transport, loop) -> None:
msg = http.StreamWriter(protocol, loop)
msg.enable_chunking()
await msg.write(b'data1')
await msg.write(b'data2')
await msg.write_eof()
assert b'5\r\ndata1\r\n5\r\ndata2\r\n0\r\n\r\n' == buf
async def test_write_payload_length(protocol, transport, loop) -> None:
write = transport.write = mock.Mock()
msg = http.StreamWriter(protocol, loop)
msg.length = 2
await msg.write(b'd')
await msg.write(b'ata')
await msg.write_eof()
content = b''.join([c[1][0] for c in list(write.mock_calls)])
assert b'da' == content.split(b'\r\n\r\n', 1)[-1]
async def test_write_payload_chunked_filter(protocol, transport, loop) -> None:
write = transport.write = mock.Mock()
msg = http.StreamWriter(protocol, loop)
msg.enable_chunking()
await msg.write(b'da')
await msg.write(b'ta')
await msg.write_eof()
content = b''.join([c[1][0] for c in list(write.mock_calls)])
assert content.endswith(b'2\r\nda\r\n2\r\nta\r\n0\r\n\r\n')
async def test_write_payload_chunked_filter_mutiple_chunks(
protocol,
transport,
loop):
write = transport.write = mock.Mock()
msg = http.StreamWriter(protocol, loop)
msg.enable_chunking()
await msg.write(b'da')
await msg.write(b'ta')
await msg.write(b'1d')
await msg.write(b'at')
await msg.write(b'a2')
await msg.write_eof()
content = b''.join([c[1][0] for c in list(write.mock_calls)])
assert content.endswith(
b'2\r\nda\r\n2\r\nta\r\n2\r\n1d\r\n2\r\nat\r\n'
b'2\r\na2\r\n0\r\n\r\n')
compressor = zlib.compressobj(wbits=-zlib.MAX_WBITS)
COMPRESSED = b''.join([compressor.compress(b'data'), compressor.flush()])
async def test_write_payload_deflate_compression(protocol,
transport, loop) -> None:
write = transport.write = mock.Mock()
msg = http.StreamWriter(protocol, loop)
msg.enable_compression('deflate')
await msg.write(b'data')
await msg.write_eof()
chunks = [c[1][0] for c in list(write.mock_calls)]
assert all(chunks)
content = b''.join(chunks)
assert COMPRESSED == content.split(b'\r\n\r\n', 1)[-1]
async def test_write_payload_deflate_and_chunked(
buf,
protocol,
transport,
loop):
msg = http.StreamWriter(protocol, loop)
msg.enable_compression('deflate')
msg.enable_chunking()
await msg.write(b'da')
await msg.write(b'ta')
await msg.write_eof()
assert b'6\r\nKI,I\x04\x00\r\n0\r\n\r\n' == buf
async def test_write_drain(protocol, transport, loop) -> None:
msg = http.StreamWriter(protocol, loop)
msg.drain = make_mocked_coro()
await msg.write(b'1' * (64 * 1024 * 2), drain=False)
assert not msg.drain.called
await msg.write(b'1', drain=True)
assert msg.drain.called
assert msg.buffer_size == 0
async def test_write_calls_callback(protocol, transport, loop) -> None:
on_chunk_sent = make_mocked_coro()
msg = http.StreamWriter(
protocol, loop,
on_chunk_sent=on_chunk_sent
)
chunk = b'1'
await msg.write(chunk)
assert on_chunk_sent.called
assert on_chunk_sent.call_args == mock.call(chunk)
async def test_write_eof_calls_callback(protocol, transport, loop) -> None:
on_chunk_sent = make_mocked_coro()
msg = http.StreamWriter(
protocol, loop,
on_chunk_sent=on_chunk_sent
)
chunk = b'1'
await msg.write_eof(chunk=chunk)
assert on_chunk_sent.called
assert on_chunk_sent.call_args == mock.call(chunk)
async def test_write_to_closing_transport(protocol, transport, loop) -> None:
msg = http.StreamWriter(protocol, loop)
await msg.write(b'Before closing')
transport.is_closing.return_value = True
with pytest.raises(ConnectionResetError):
await msg.write(b'After closing')
async def test_drain(protocol, transport, loop) -> None:
msg = http.StreamWriter(protocol, loop)
await msg.drain()
assert protocol._drain_helper.called
async def test_drain_no_transport(protocol, transport, loop) -> None:
msg = http.StreamWriter(protocol, loop)
msg._protocol.transport = None
await msg.drain()
assert not protocol._drain_helper.called
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