New realism_config table (uuid PK + unique key) + two repo methods (get/set) backs an admin-only GET/PUT /api/v1/realism/config surface. The planner now exposes apply_payload(payload) / current_payload() / reset_to_defaults() and reads its weights through mutable module globals; pick() resolves the live values each call. Validation catches negative weights, zero totals, out-of-range canary_probability, unknown content_class names, and silently drops cross-list entries (canary class on the user list, etc). The orchestrator worker calls _refresh_realism_config(repo) on startup and every 5 ticks (~5min at 60s interval). Operator changes land within one refresh window with no bus signal — the simpler path for a knob whose latency tolerance is minutes.
110 lines
3.6 KiB
Python
110 lines
3.6 KiB
Python
"""GET/PUT /api/v1/realism/config — operator-tunable weights."""
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from __future__ import annotations
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import json
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from unittest.mock import AsyncMock, patch
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import pytest
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from fastapi import HTTPException
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from decnet.realism import planner
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@pytest.fixture(autouse=True)
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def _reset_planner():
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yield
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planner.reset_to_defaults()
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@pytest.mark.asyncio
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async def test_get_returns_defaults_when_no_row():
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from decnet.web.router.realism.api_config import get_config
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with patch("decnet.web.router.realism.api_config.repo") as mock_repo:
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mock_repo.get_realism_config = AsyncMock(return_value=None)
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result = await get_config(user={"uuid": "u", "role": "viewer"})
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assert result["canary_probability"] == pytest.approx(0.03)
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assert result["user_class_weights"]
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@pytest.mark.asyncio
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async def test_get_hydrates_from_db_row():
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from decnet.web.router.realism.api_config import get_config
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stored = json.dumps({"canary_probability": 0.10})
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with patch("decnet.web.router.realism.api_config.repo") as mock_repo:
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mock_repo.get_realism_config = AsyncMock(
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return_value={"key": "weights", "value": stored},
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)
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result = await get_config(user={"uuid": "u", "role": "viewer"})
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assert result["canary_probability"] == pytest.approx(0.10)
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@pytest.mark.asyncio
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async def test_get_serves_defaults_when_stored_payload_invalid():
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"""Stored JSON parsed but failed planner validation: log + serve
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defaults rather than 500."""
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from decnet.web.router.realism.api_config import get_config
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stored = json.dumps({"canary_probability": 9.0})
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with patch("decnet.web.router.realism.api_config.repo") as mock_repo:
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mock_repo.get_realism_config = AsyncMock(
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return_value={"key": "weights", "value": stored},
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)
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result = await get_config(user={"uuid": "u", "role": "viewer"})
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assert result["canary_probability"] == pytest.approx(0.03)
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@pytest.mark.asyncio
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async def test_put_persists_and_returns_snapshot():
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from decnet.web.router.realism.api_config import put_config
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with patch("decnet.web.router.realism.api_config.repo") as mock_repo:
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mock_repo.set_realism_config = AsyncMock()
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result = await put_config(
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body={"canary_probability": 0.20},
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user={"uuid": "u", "role": "admin", "username": "anti"},
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)
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assert result["canary_probability"] == pytest.approx(0.20)
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mock_repo.set_realism_config.assert_awaited_once()
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args, _ = mock_repo.set_realism_config.call_args
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assert args[0] == "weights"
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persisted = json.loads(args[1])
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assert persisted["canary_probability"] == pytest.approx(0.20)
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@pytest.mark.asyncio
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async def test_put_returns_400_on_invalid_payload():
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from decnet.web.router.realism.api_config import put_config
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with patch("decnet.web.router.realism.api_config.repo") as mock_repo:
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mock_repo.set_realism_config = AsyncMock()
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with pytest.raises(HTTPException) as exc:
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await put_config(
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body={"canary_probability": 9.0},
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user={"uuid": "u", "role": "admin", "username": "anti"},
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)
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assert exc.value.status_code == 400
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# No DB write on validation failure.
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mock_repo.set_realism_config.assert_not_called()
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@pytest.mark.asyncio
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async def test_put_rejects_non_dict_body():
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from decnet.web.router.realism.api_config import put_config
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with pytest.raises(HTTPException) as exc:
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await put_config(
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body=[1, 2, 3], # type: ignore[arg-type]
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user={"uuid": "u", "role": "admin", "username": "anti"},
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)
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assert exc.value.status_code == 400
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