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9d5bc33 6f9a7df 9d5bc33 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 | from __future__ import annotations
import asyncio
import importlib.util
import sys
import types
from pathlib import Path
from types import SimpleNamespace
import pytest
ROOT = Path(__file__).resolve().parents[2]
_ISOLATED_MODULE_NAMES = (
"headroom.proxy",
"headroom.proxy.handlers",
"httpx",
"fastapi.responses",
"tests.headroom_proxy_handlers_openai",
"tests.headroom_proxy_handlers_streaming",
)
@pytest.fixture(autouse=True)
def restore_isolated_modules() -> None:
saved_modules = {name: sys.modules.get(name) for name in _ISOLATED_MODULE_NAMES}
try:
yield
finally:
for name in _ISOLATED_MODULE_NAMES:
sys.modules.pop(name, None)
for name, module in saved_modules.items():
if module is not None:
sys.modules[name] = module
def _load_handler_module(monkeypatch: pytest.MonkeyPatch, module_name: str, relative_path: str):
proxy_pkg = types.ModuleType("headroom.proxy")
proxy_pkg.__path__ = [str(ROOT / "headroom" / "proxy")]
monkeypatch.setitem(sys.modules, "headroom.proxy", proxy_pkg)
handlers_pkg = types.ModuleType("headroom.proxy.handlers")
handlers_pkg.__path__ = [str(ROOT / "headroom" / "proxy" / "handlers")]
monkeypatch.setitem(sys.modules, "headroom.proxy.handlers", handlers_pkg)
httpx_mod = types.ModuleType("httpx")
httpx_mod.ConnectError = type("ConnectError", (Exception,), {})
httpx_mod.ConnectTimeout = type("ConnectTimeout", (Exception,), {})
httpx_mod.PoolTimeout = type("PoolTimeout", (Exception,), {})
monkeypatch.setitem(sys.modules, "httpx", httpx_mod)
responses_mod = types.ModuleType("fastapi.responses")
class Response:
def __init__(self, content=None, status_code: int = 200, headers=None, media_type=None):
self.content = content
self.status_code = status_code
self.headers = headers or {}
self.media_type = media_type
class StreamingResponse(Response):
pass
class JSONResponse(Response):
pass
responses_mod.Response = Response
responses_mod.StreamingResponse = StreamingResponse
responses_mod.JSONResponse = JSONResponse
monkeypatch.setitem(sys.modules, "fastapi.responses", responses_mod)
spec = importlib.util.spec_from_file_location(module_name, ROOT / relative_path)
assert spec is not None and spec.loader is not None
module = importlib.util.module_from_spec(spec)
monkeypatch.setitem(sys.modules, module_name, module)
spec.loader.exec_module(module)
return module
def test_openai_passthrough_applies_copilot_auth(monkeypatch: pytest.MonkeyPatch) -> None:
openai_mod = _load_handler_module(
monkeypatch,
"tests.headroom_proxy_handlers_openai",
"headroom/proxy/handlers/openai.py",
)
seen: dict[str, object] = {}
async def fake_apply(headers: dict[str, str], *, url: str) -> dict[str, str]:
seen["headers"] = dict(headers)
seen["url"] = url
return {"Authorization": "Bearer upstream-token"}
monkeypatch.setattr(openai_mod, "apply_copilot_api_auth", fake_apply)
class Dummy(openai_mod.OpenAIHandlerMixin):
def __init__(self) -> None:
self.metrics = SimpleNamespace(record_request=self._record_request)
self.http_client = SimpleNamespace(request=self._request)
async def _record_request(self, **kwargs) -> None: # noqa: ANN003
return None
async def _request(self, **kwargs): # noqa: ANN003
seen["request_kwargs"] = kwargs
return SimpleNamespace(headers={}, content=b"{}", status_code=200)
request = SimpleNamespace(
url=SimpleNamespace(path="/v1/models", query=""),
headers={
"authorization": "Bearer downstream",
"host": "localhost",
"accept-encoding": "gzip",
},
method="GET",
body=lambda: None,
)
async def body() -> bytes:
return b""
request.body = body
handler = Dummy()
response = asyncio.run(
handler.handle_passthrough(
request,
"https://api.githubcopilot.com",
"models",
"openai",
)
)
assert seen["url"] == "https://api.githubcopilot.com/models"
assert seen["request_kwargs"]["headers"] == {"Authorization": "Bearer upstream-token"}
assert response.status_code == 200
def test_streaming_response_applies_copilot_auth(monkeypatch: pytest.MonkeyPatch) -> None:
streaming_mod = _load_handler_module(
monkeypatch,
"tests.headroom_proxy_handlers_streaming",
"headroom/proxy/handlers/streaming.py",
)
seen: dict[str, object] = {}
async def fake_apply(headers: dict[str, str], *, url: str) -> dict[str, str]:
seen["headers"] = dict(headers)
seen["url"] = url
return {"Authorization": "Bearer upstream-token"}
monkeypatch.setattr(streaming_mod, "apply_copilot_api_auth", fake_apply)
class Dummy(streaming_mod.StreamingMixin):
def __init__(self) -> None:
self.memory_handler = None
self.config = SimpleNamespace(
retry_max_attempts=1,
retry_base_delay_ms=1,
retry_max_delay_ms=1,
)
self.http_client = SimpleNamespace(
build_request=self._build_request,
send=self._send,
)
def _build_request(self, method: str, url: str, json: dict, headers: dict): # noqa: ANN003, A002
seen["request"] = {
"method": method,
"url": url,
"json": json,
"headers": headers,
}
return SimpleNamespace()
async def _send(self, request, stream: bool): # noqa: ANN001, ANN003
return SimpleNamespace(headers={}, status_code=200)
handler = Dummy()
response = asyncio.run(
handler._stream_response(
url="https://api.githubcopilot.com/v1/responses",
headers={"authorization": "Bearer downstream"},
body={"model": "gpt-4o"},
provider="openai",
model="gpt-4o",
request_id="req-test",
original_tokens=0,
optimized_tokens=0,
tokens_saved=0,
transforms_applied=[],
tags={},
optimization_latency=0.0,
)
)
assert seen["url"] == "https://api.githubcopilot.com/v1/responses"
assert seen["request"]["headers"] == {"Authorization": "Bearer upstream-token"}
assert response.status_code == 200
|