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|
from __future__ import annotations
from textwrap import dedent
from pytest import Pytester
import pytest_asyncio.plugin
def test_unused_tcp_port_selects_unused_port(pytester: Pytester):
pytester.makepyfile(
dedent(
"""\
import asyncio
import pytest
@pytest.mark.asyncio
async def test_unused_port_fixture(unused_tcp_port):
async def closer(_, writer):
writer.close()
server1 = await asyncio.start_server(
closer, host="localhost", port=unused_tcp_port
)
with pytest.raises(IOError):
await asyncio.start_server(
closer, host="localhost", port=unused_tcp_port
)
server1.close()
await server1.wait_closed()
"""
)
)
def test_unused_udp_port_selects_unused_port(pytester: Pytester):
pytester.makepyfile(
dedent(
"""\
@pytest.mark.asyncio
async def test_unused_udp_port_fixture(unused_udp_port):
class Closer:
def connection_made(self, transport):
pass
def connection_lost(self, *arg, **kwd):
pass
event_loop = asyncio.get_running_loop()
transport1, _ = await event_loop.create_datagram_endpoint(
Closer,
local_addr=("127.0.0.1", unused_udp_port),
reuse_port=False,
)
with pytest.raises(IOError):
await event_loop.create_datagram_endpoint(
Closer,
local_addr=("127.0.0.1", unused_udp_port),
reuse_port=False,
)
transport1.abort()
"""
)
)
def test_unused_tcp_port_factory_selects_unused_port(pytester: Pytester):
pytester.makepyfile(
dedent(
"""\
@pytest.mark.asyncio
async def test_unused_port_factory_fixture(unused_tcp_port_factory):
async def closer(_, writer):
writer.close()
port1, port2, port3 = (
unused_tcp_port_factory(),
unused_tcp_port_factory(),
unused_tcp_port_factory(),
)
server1 = await asyncio.start_server(
closer, host="localhost", port=port1
)
server2 = await asyncio.start_server(
closer, host="localhost", port=port2
)
server3 = await asyncio.start_server(
closer, host="localhost", port=port3
)
for port in port1, port2, port3:
with pytest.raises(IOError):
await asyncio.start_server(closer, host="localhost", port=port)
server1.close()
await server1.wait_closed()
server2.close()
await server2.wait_closed()
server3.close()
await server3.wait_closed()
"""
)
)
def test_unused_udp_port_factory_selects_unused_port(pytester: Pytester):
pytester.makepyfile(
dedent(
"""\
@pytest.mark.asyncio
async def test_unused_udp_port_factory_fixture(unused_udp_port_factory):
class Closer:
def connection_made(self, transport):
pass
def connection_lost(self, *arg, **kwd):
pass
port1, port2, port3 = (
unused_udp_port_factory(),
unused_udp_port_factory(),
unused_udp_port_factory(),
)
event_loop = asyncio.get_running_loop()
transport1, _ = await event_loop.create_datagram_endpoint(
Closer,
local_addr=("127.0.0.1", port1),
reuse_port=False,
)
transport2, _ = await event_loop.create_datagram_endpoint(
Closer,
local_addr=("127.0.0.1", port2),
reuse_port=False,
)
transport3, _ = await event_loop.create_datagram_endpoint(
Closer,
local_addr=("127.0.0.1", port3),
reuse_port=False,
)
for port in port1, port2, port3:
with pytest.raises(IOError):
await event_loop.create_datagram_endpoint(
Closer,
local_addr=("127.0.0.1", port),
reuse_port=False,
)
transport1.abort()
transport2.abort()
transport3.abort()
"""
)
)
def test_unused_port_factory_duplicate(unused_tcp_port_factory, monkeypatch):
"""Test correct avoidance of duplicate ports."""
counter = 0
def mock_unused_tcp_port(_ignored):
"""Force some duplicate ports."""
nonlocal counter
counter += 1
if counter < 5:
return 10000
else:
return 10000 + counter
monkeypatch.setattr(pytest_asyncio.plugin, "_unused_port", mock_unused_tcp_port)
assert unused_tcp_port_factory() == 10000
assert unused_tcp_port_factory() > 10000
def test_unused_udp_port_factory_duplicate(unused_udp_port_factory, monkeypatch):
"""Test correct avoidance of duplicate UDP ports."""
counter = 0
def mock_unused_udp_port(_ignored):
"""Force some duplicate ports."""
nonlocal counter
counter += 1
if counter < 5:
return 10000
else:
return 10000 + counter
monkeypatch.setattr(pytest_asyncio.plugin, "_unused_port", mock_unused_udp_port)
assert unused_udp_port_factory() == 10000
assert unused_udp_port_factory() > 10000
|
