diff options
Diffstat (limited to 'packages/meshbay-node/tests')
| -rw-r--r-- | packages/meshbay-node/tests/test_packaging_win.py | 21 | ||||
| -rw-r--r-- | packages/meshbay-node/tests/test_proactor_udp.py | 150 |
2 files changed, 171 insertions, 0 deletions
diff --git a/packages/meshbay-node/tests/test_packaging_win.py b/packages/meshbay-node/tests/test_packaging_win.py index 6ee4891..0110b6c 100644 --- a/packages/meshbay-node/tests/test_packaging_win.py +++ b/packages/meshbay-node/tests/test_packaging_win.py @@ -1497,6 +1497,27 @@ def test_msix_gives_the_cli_an_execution_alias_and_the_windows_it_needs(): assert 'xmlns:uap5="http://schemas.microsoft.com/appx/manifest/uap/windows10/5"' in xml +def test_msix_gives_the_command_line_client_an_alias_of_its_own_application(): + """An Application may declare one windows.appExecutionAlias extension. + meshbay-node.exe has the app's; a second one beside it for meshbay-cli.exe + made makeappx refuse the whole package ("must only be declared once"), at + the very end of a Store build. The client is an Application of its own, + kept out of the Start menu, with its alias and its firewall rule.""" + xml = MSIX_MANIFEST_XML.read_text(encoding="utf-8") + ext = MSIX_EXTENSIONS_XML.read_text(encoding="utf-8") + assert ext.count('Category="windows.appExecutionAlias"') == 1 + apps = re.findall(r"<Application\b.*?</Application>", xml, re.S) + for app in apps: + assert app.count('Category="windows.appExecutionAlias"') <= 1, app[:80] + [cli] = [a for a in apps if 'Executable="app\\resources\\node-runtime\\meshbay-cli.exe"' + in a.split(">", 1)[0]] + assert 'AppListEntry="none"' in cli + assert 'Alias="meshbay-cli.exe"' in cli + package_level = xml.split("</Applications>", 1)[1] + rule = package_level.split('Executable="app\\resources\\node-runtime\\meshbay-cli.exe"', 1) + assert len(rule) == 2 and 'IPProtocol="UDP"' in rule[1].split("</desktop2:", 1)[0] + + def test_the_node_runtime_has_a_windowless_daemon_beside_the_cli(): spec = (WIN / "meshbay-node.spec").read_text(encoding="utf-8") windowless = spec.split('name="meshbay-nodew"', 1) diff --git a/packages/meshbay-node/tests/test_proactor_udp.py b/packages/meshbay-node/tests/test_proactor_udp.py new file mode 100644 index 0000000..0b22b4e --- /dev/null +++ b/packages/meshbay-node/tests/test_proactor_udp.py @@ -0,0 +1,150 @@ +""" +On Windows the node's datagrams go straight through the socket, not one +overlapped operation per datagram and per turn of the loop (`proactor_udp.py`). + +Run on a real ProactorEventLoop, which only Windows has. +""" + +import asyncio +import socket +import sys +import time + +import pytest +from meshbay_node.transport.webrtc import proactor_udp + +pytestmark = pytest.mark.skipif(sys.platform != "win32", reason="the proactor is Windows'") + +N = 2000 + + +class _Collect(asyncio.DatagramProtocol): + def __init__(self, raise_on: int = -1): + self.got: list[int] = [] + self.raise_on = raise_on + self.all = asyncio.get_running_loop().create_future() + + def datagram_received(self, data, addr): + self.got.append(int.from_bytes(data[:4], "big")) + if len(self.got) == N and not self.all.done(): + self.all.set_result(None) + if len(self.got) == self.raise_on: + raise RuntimeError("a protocol's own bug") + + +class _Refusing(socket.socket): + """A socket that refuses a send every so often, as a full buffer does, and + can answer one read with the reset an ICMP port unreachable leaves. The + overlapped path works by handle and never calls these.""" + + def __init__(self, every: int = 0, reset_once: bool = False): + super().__init__(socket.AF_INET, socket.SOCK_DGRAM) + self.every, self.calls, self.reset_once = every, 0, reset_once + + def sendto(self, data, addr): + self.calls += 1 + if self.every and self.calls % self.every == 0: + raise BlockingIOError + return super().sendto(data, addr) + + def recvfrom(self, n): + if self.reset_once: + self.reset_once = False + raise ConnectionResetError(10054, "port unreachable") + return super().recvfrom(n) + + +def _busy_turns(ms: float): + """A loop with other work to do: every turn takes `ms` longer.""" + async def busy(): + while True: + end = time.perf_counter() + ms / 1000 + while time.perf_counter() < end: + pass + await asyncio.sleep(0) + return asyncio.ensure_future(busy()) + + +async def _exchange(*, refuse_every=0, reset_once=False, raise_on=-1, busy_ms=0.0): + """N datagrams from one proactor transport to another on loopback: what + arrived in what order, and how many overlapped sends and reads it took.""" + loop = asyncio.get_running_loop() + rsock = _Refusing(reset_once=reset_once) + rsock.setsockopt(socket.SOL_SOCKET, socket.SO_RCVBUF, 8 << 20) + rsock.bind(("127.0.0.1", 0)) + rtr, rx = await loop.create_datagram_endpoint(lambda: _Collect(raise_on), sock=rsock) + tsock = _Refusing(refuse_every) + tsock.bind(("127.0.0.1", 0)) + tx, _ = await loop.create_datagram_endpoint(asyncio.DatagramProtocol, sock=tsock) + counts = {"sendto": 0, "recvfrom": 0} + originals = {name: getattr(loop._proactor, name) for name in counts} + + def counting(name): + def call(*a, **kw): + counts[name] += 1 + return originals[name](*a, **kw) + return call + for name in counts: + setattr(loop._proactor, name, counting(name)) + errors = [] + loop.set_exception_handler(lambda _loop, ctx: errors.append(ctx)) + busy = _busy_turns(busy_ms) if busy_ms else None + try: + dest = rsock.getsockname() + for i in range(N): + tx.sendto(i.to_bytes(4, "big") * 50, dest) + if i % 50 == 49: + await asyncio.sleep(0) + await asyncio.wait_for(rx.all, 20) + return rx.got, counts, errors + finally: + if busy: + busy.cancel() + for name, fn in originals.items(): + setattr(loop._proactor, name, fn) + tx.close() + rtr.close() + + +def _run(**kw): + return asyncio.run(_exchange(**kw), loop_factory=asyncio.ProactorEventLoop) + + +def test_the_transport_is_patched(): + cls = asyncio.proactor_events._ProactorDatagramTransport + assert cls.sendto is proactor_udp.sendto + assert cls._loop_reading is proactor_udp._loop_reading + + +def test_datagrams_go_straight_out_in_order(): + got, counts, _ = _run() + assert got == list(range(N)) + assert counts["sendto"] == 0 + + +def test_what_the_socket_refuses_is_queued_and_order_is_kept(): + """A refusal sends that datagram the overlapped way, and the ones after it + wait behind it rather than overtake it.""" + got, counts, _ = _run(refuse_every=97) + assert got == list(range(N)) + assert counts["sendto"] >= N // 97 + + +def test_a_busy_loop_reads_everything_waiting_in_order(): + """Unpatched, this loop read one datagram a turn: about 2,000 a second + whatever was waiting, and the kernel dropped the rest.""" + got, counts, _ = _run(busy_ms=2) + assert got == list(range(N)) + assert counts["recvfrom"] < N // 10 + + +def test_a_port_unreachable_on_a_direct_read_is_skipped(): + got, _, errors = _run(reset_once=True, busy_ms=2) + assert got == list(range(N)) + assert not errors + + +def test_a_protocol_that_raises_does_not_end_the_reading(): + got, _, errors = _run(raise_on=10) + assert got == list(range(N)) + assert [str(e["exception"]) for e in errors] == ["a protocol's own bug"] |