kiwi/tests/services/test_task_inference.py

164 lines
7.4 KiB
Python

"""Tests for app/services/task_inference.py"""
from __future__ import annotations
from unittest.mock import MagicMock, patch
import pytest
def _ok_resp(url: str = "http://node:8080", allocation_id: str = "alloc-123") -> MagicMock:
m = MagicMock()
m.status_code = 200
m.is_success = True
m.json.return_value = {
"url": url,
"allocation_id": allocation_id,
"gpu_id": 0,
"started": True,
"warm": False,
}
return m
def _err_resp(status_code: int, text: str = "error") -> MagicMock:
m = MagicMock()
m.status_code = status_code
m.is_success = False
m.text = text
return m
def test_task_allocate_yields_allocation_on_200(monkeypatch):
"""task_allocate() yields Allocation with url, allocation_id, service on 200."""
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
with patch("app.services.task_inference.httpx.post", return_value=_ok_resp()) as mock_post, \
patch("app.services.task_inference.httpx.delete") as mock_del:
from app.services.task_inference import task_allocate
with task_allocate("kiwi", "meal_plan", service_hint="cf-text") as alloc:
assert alloc.url == "http://node:8080"
assert alloc.allocation_id == "alloc-123"
assert alloc.service == "cf-text"
called_url = mock_post.call_args[0][0]
assert called_url == "http://coord:7700/api/inference/task"
mock_del.assert_called_once()
def test_task_allocate_uses_service_from_response_when_present(monkeypatch):
"""task_allocate() uses service from response dict over service_hint when available."""
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
resp = _ok_resp()
resp.json.return_value["service"] = "cf-vision"
with patch("app.services.task_inference.httpx.post", return_value=resp), \
patch("app.services.task_inference.httpx.delete"):
from app.services.task_inference import task_allocate
with task_allocate("kiwi", "ocr", service_hint="cf-docuvision") as alloc:
assert alloc.service == "cf-vision"
def test_task_allocate_404_raises_task_not_registered(monkeypatch):
"""task_allocate() raises TaskNotRegistered on coordinator 404."""
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
with patch("app.services.task_inference.httpx.post", return_value=_err_resp(404)):
from app.services.task_inference import task_allocate, TaskNotRegistered
with pytest.raises(TaskNotRegistered):
with task_allocate("kiwi", "meal_plan", service_hint="cf-text"):
pass
def test_task_allocate_503_raises_runtime_error(monkeypatch):
"""task_allocate() raises RuntimeError on non-404 coordinator errors."""
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
with patch("app.services.task_inference.httpx.post", return_value=_err_resp(503, "no GPU")):
from app.services.task_inference import task_allocate
with pytest.raises(RuntimeError, match="HTTP 503"):
with task_allocate("kiwi", "meal_plan", service_hint="cf-text"):
pass
def test_task_allocate_release_called_on_clean_exit(monkeypatch):
"""task_allocate() DELETEs the allocation on clean context exit."""
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
with patch("app.services.task_inference.httpx.post", return_value=_ok_resp(allocation_id="xyz")), \
patch("app.services.task_inference.httpx.delete") as mock_del:
from app.services.task_inference import task_allocate
with task_allocate("kiwi", "meal_plan", service_hint="cf-text"):
pass
release_url = mock_del.call_args[0][0]
assert "cf-text" in release_url
assert "xyz" in release_url
def test_task_allocate_release_called_when_inner_block_raises(monkeypatch):
"""task_allocate() DELETEs the allocation even when the inner block raises."""
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
with patch("app.services.task_inference.httpx.post", return_value=_ok_resp(allocation_id="abc")), \
patch("app.services.task_inference.httpx.delete") as mock_del:
from app.services.task_inference import task_allocate
with pytest.raises(ValueError):
with task_allocate("kiwi", "meal_plan", service_hint="cf-text"):
raise ValueError("inner error")
mock_del.assert_called_once()
def test_task_allocate_release_failure_is_swallowed(monkeypatch):
"""task_allocate() does not propagate DELETE failures."""
import httpx as _httpx
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
with patch("app.services.task_inference.httpx.post", return_value=_ok_resp()), \
patch("app.services.task_inference.httpx.delete",
side_effect=_httpx.RequestError("gone", request=MagicMock())):
from app.services.task_inference import task_allocate
with task_allocate("kiwi", "meal_plan", service_hint="cf-text") as alloc:
assert alloc.url == "http://node:8080"
# no exception raised
def test_task_allocate_no_orch_url_raises_runtime_error(monkeypatch):
"""task_allocate() raises RuntimeError when CF_ORCH_URL is not set."""
monkeypatch.delenv("CF_ORCH_URL", raising=False)
from app.services.task_inference import task_allocate
with pytest.raises(RuntimeError, match="CF_ORCH_URL"):
with task_allocate("kiwi", "meal_plan", service_hint="cf-text"):
pass
def test_task_allocate_network_error_raises_runtime_error(monkeypatch):
"""task_allocate() wraps httpx.RequestError in RuntimeError."""
import httpx as _httpx
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
with patch("app.services.task_inference.httpx.post",
side_effect=_httpx.RequestError("timeout", request=MagicMock())):
from app.services.task_inference import task_allocate
with pytest.raises(RuntimeError, match="unreachable"):
with task_allocate("kiwi", "meal_plan", service_hint="cf-text"):
pass
def test_task_allocate_malformed_json_raises_runtime_error(monkeypatch):
"""task_allocate() raises RuntimeError when coordinator returns non-JSON on 200."""
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
bad_resp = MagicMock()
bad_resp.status_code = 200
bad_resp.is_success = True
bad_resp.text = "<html>proxy error</html>"
bad_resp.json.side_effect = ValueError("not json")
with patch("app.services.task_inference.httpx.post", return_value=bad_resp):
from app.services.task_inference import task_allocate
with pytest.raises(RuntimeError, match="malformed"):
with task_allocate("kiwi", "meal_plan", service_hint="cf-text"):
pass
def test_task_allocate_missing_url_field_raises_runtime_error(monkeypatch):
"""task_allocate() raises RuntimeError when coordinator response is missing url field."""
monkeypatch.setenv("CF_ORCH_URL", "http://coord:7700")
bad_resp = MagicMock()
bad_resp.status_code = 200
bad_resp.is_success = True
bad_resp.text = '{"allocation_id": "x"}'
bad_resp.json.return_value = {"allocation_id": "x"} # missing "url"
with patch("app.services.task_inference.httpx.post", return_value=bad_resp):
from app.services.task_inference import task_allocate
with pytest.raises(RuntimeError, match="malformed"):
with task_allocate("kiwi", "meal_plan", service_hint="cf-text"):
pass