Files

294 lines
12 KiB
Python

"""Contract tests for the local-models dashboard routes (Rollout 4).
Real FastAPI TestClient against the real router; the runtime pieces
underneath are exercised against temp HERMES_HOME (autouse fixture). Network
downloads are stubbed at the urllib boundary — never live."""
from __future__ import annotations
import io
import json
import time
from pathlib import Path
import pytest
from fastapi.testclient import TestClient
@pytest.fixture
def client(tmp_path, monkeypatch):
monkeypatch.setenv("HERMES_HOME", str(tmp_path / ".hermes"))
from hermes_cli import web_server
test_client = TestClient(web_server.app)
# Same auth pattern as the git-route tests: present the session token.
test_client.headers[web_server._SESSION_HEADER_NAME] = web_server._SESSION_TOKEN
return test_client
def test_local_models_routes_require_auth(tmp_path, monkeypatch):
monkeypatch.setenv("HERMES_HOME", str(tmp_path / ".hermes"))
from hermes_cli import web_server
unauth = TestClient(web_server.app)
assert unauth.get("/api/local-models/status").status_code == 401
def _write_fake_gguf(path: Path, size: int = 1024) -> None:
path.parent.mkdir(parents=True, exist_ok=True)
path.write_bytes(b"GGUF" + b"\x00" * size)
# ── status ───────────────────────────────────────────────────
def test_status_shape_and_defaults(client):
r = client.get("/api/local-models/status")
assert r.status_code == 200
data = r.json()
# Contract: every key the pane's first paint needs, present and typed.
assert isinstance(data["enabled"], bool)
assert isinstance(data["tag"], str) and data["tag"].startswith("b")
assert isinstance(data["runtime_installed"], bool)
assert isinstance(data["server_running"], bool)
assert isinstance(data["models"], list)
def test_status_lists_staged_models_with_labels(client, tmp_path):
from hermes_cli.local_runtime.bootstrap import models_dir
_write_fake_gguf(models_dir() / "Some-Model.gguf", size=2048)
data = client.get("/api/local-models/status").json()
ids = [m["id"] for m in data["models"]]
assert "Some-Model" in ids
row = data["models"][ids.index("Some-Model")]
assert row["size_bytes"] > 0
assert row["size_label"].endswith("GB")
# ── hardware ─────────────────────────────────────────────────
def test_hardware_plain_facts(client):
data = client.get("/api/local-models/hardware").json()
assert isinstance(data["uma"], bool)
assert data["ram_total_bytes"] > 0
assert data["vram_total_bytes"] >= 0
# GPU fields are None-able (non-NVIDIA machines) but must exist.
assert "gpu_name" in data and "gpu_util_percent" in data and "vram_used_bytes" in data
# ── catalog ──────────────────────────────────────────────────
def test_catalog_prices_every_entry_for_this_machine(client):
data = client.get("/api/local-models/catalog").json()
assert len(data["models"]) >= 3
for row in data["models"]:
# The three user questions, answered on every row:
assert row["size_label"].endswith("GB") # how big
assert isinstance(row["fits"], bool) # will it fit
assert row["fit_summary"] # what shape
if row["fits"]:
assert row["start_window"] >= 1
assert row["start_window_label"].endswith("K")
else:
assert "memory" in row["fit_summary"].lower()
assert isinstance(row["downloaded"], bool)
def test_catalog_never_hides_unaffordable_models(client, monkeypatch):
"""Unaffordable entries stay visible with a plain reason — hiding them
is how users conclude the feature is broken."""
from hermes_cli.local_runtime.estimator import HardwareBudget
tiny = HardwareBudget(usable_vram_bytes=1 << 30, total_device_bytes=1 << 30,
ram_available_bytes=1 << 30)
monkeypatch.setattr("hermes_cli.local_runtime.hardware.probe_budget",
lambda **kw: tiny)
data = client.get("/api/local-models/catalog").json()
from hermes_cli.local_runtime.catalog import CATALOG
assert len(data["models"]) == len(CATALOG)
refused = [m for m in data["models"] if not m["fits"]]
assert refused, "a 1 GiB machine must refuse the 20 GB models"
for row in refused:
assert row["fit_detail"] or row["fit_summary"]
# ── downloads ────────────────────────────────────────────────
def test_download_unknown_model_404s(client):
r = client.post("/api/local-models/download", json={"model_id": "nope"})
assert r.status_code == 404
def test_download_short_of_server_length_errors_and_cleans_up(client, monkeypatch):
"""Catalog sizes are advisory (upstream re-uploads may make them
stale — a mismatch against the CATALOG must not fail a download).
The server's own declared length is the only completeness check:
fewer bytes than the server promised means a dropped connection, so
the job errors and nothing is staged."""
class FakeResponse(io.BytesIO):
# Body is 17 bytes; the server promises 32 — a truncated stream.
headers = {"Content-Length": "32"}
def __enter__(self):
return self
def __exit__(self, *a):
return False
monkeypatch.setattr("urllib.request.urlopen",
lambda *a, **k: FakeResponse(b"not the real body"))
# Pin a generous budget: variant selection prices against the machine
# running the test, and a GPU-less CI runner honestly refuses every
# build (409) — this test is about the download path, not selection.
from hermes_cli.local_runtime.estimator import HardwareBudget
budget = HardwareBudget(usable_vram_bytes=64 << 30,
total_device_bytes=64 << 30,
ram_available_bytes=64 << 30)
monkeypatch.setattr("hermes_cli.local_runtime.hardware.probe_budget",
lambda **kw: budget)
from hermes_cli.local_runtime.catalog import CATALOG
entry_id = CATALOG[0].id
r = client.post("/api/local-models/download", json={"model_id": entry_id})
assert r.status_code == 200
job_id = r.json()["job_id"]
assert job_id
deadline = time.time() + 10
status = None
while time.time() < deadline:
status = client.get(f"/api/local-models/jobs/{job_id}").json()
if status["status"] in ("done", "error"):
break
time.sleep(0.05)
assert status is not None and status["status"] == "error"
assert "bytes" in status["error"].lower()
from hermes_cli.local_runtime.bootstrap import models_dir
assert not (models_dir() / f"{entry_id}.gguf").exists()
assert not (models_dir() / f"{entry_id}.part").exists()
def test_download_already_downloaded_short_circuits(client, monkeypatch):
from hermes_cli.local_runtime.bootstrap import models_dir
from hermes_cli.local_runtime.catalog import CATALOG, select_variant
from hermes_cli.local_runtime.estimator import HardwareBudget
# Pin the budget so the selected variant is deterministic in the test.
budget = HardwareBudget(usable_vram_bytes=64 << 30, total_device_bytes=64 << 30,
ram_available_bytes=64 << 30)
monkeypatch.setattr("hermes_cli.local_runtime.hardware.probe_budget",
lambda **kw: budget)
choice = select_variant(CATALOG[0], budget)
assert choice is not None
_write_fake_gguf(models_dir() / choice.variant.files[0].local_name)
r = client.post("/api/local-models/download", json={"model_id": CATALOG[0].id})
assert r.status_code == 200
assert r.json()["already_downloaded"] is True
def test_delete_model(client):
from hermes_cli.local_runtime.bootstrap import models_dir
_write_fake_gguf(models_dir() / "Doomed.gguf")
assert client.delete("/api/local-models/models/Doomed").status_code == 200
assert not (models_dir() / "Doomed.gguf").exists()
assert client.delete("/api/local-models/models/Doomed").status_code == 404
# ── runtime install ──────────────────────────────────────────
def test_runtime_install_rejects_impossible_combo(client, monkeypatch):
"""Impossible platform/backend combos fail the POST itself with the
resolver's honest message — not a background job that dies silently.
(win-arm64-vulkan; the old cuda case became real upstream at ~b1036x.)"""
monkeypatch.setattr(
"hermes_cli.local_runtime.binaries._host_os_arch", lambda: ("win", "arm64"))
r = client.post("/api/local-models/runtime/install", json={"backend": "vulkan"})
assert r.status_code == 400
assert "arm64" in r.json()["detail"]
def test_job_poll_unknown_404s(client):
assert client.get("/api/local-models/jobs/deadbeef").status_code == 404
def test_eject_without_supervisor_is_not_a_500(client, monkeypatch):
"""Eject on an ADOPTED server (no in-process supervisor — the shape
every backend restart produces, since boot adopts the running server
via the state file) must route through the persisted endpoint, not
crash. Regression: _state_endpoint was only imported inside the
status route, so eject raised NameError -> 500 for every adopted-
server session."""
monkeypatch.setattr(
"hermes_cli.local_runtime.bootstrap.get_supervisor", lambda: None)
# No running server either: the route must answer 409 (no server),
# never a NameError 500.
monkeypatch.setattr(
"hermes_cli.web_routers.local_models._state_endpoint", lambda: None)
r = client.post("/api/local-models/eject", json={"model_id": "anything"})
assert r.status_code == 409, (r.status_code, r.text)
def test_download_tolerates_stale_catalog_size(client, monkeypatch):
"""Upstream re-uploads make catalog sizes stale; a download whose
delivered bytes are self-consistent with the SERVER's declared length
must succeed even when the catalog said something else. (This is the
tolerance the sha removal was for — being out of date must not break
downloads.)"""
body = b"x" * 48 # server-consistent: Content-Length == body length
class FakeResponse(io.BytesIO):
headers = {"Content-Length": str(len(body))}
def __enter__(self):
return self
def __exit__(self, *a):
return False
monkeypatch.setattr("urllib.request.urlopen",
lambda *a, **k: FakeResponse(body))
from hermes_cli.local_runtime.estimator import HardwareBudget
budget = HardwareBudget(usable_vram_bytes=64 << 30,
total_device_bytes=64 << 30,
ram_available_bytes=64 << 30)
monkeypatch.setattr("hermes_cli.local_runtime.hardware.probe_budget",
lambda **kw: budget)
# Keep the post-download server bounce out of this unit.
monkeypatch.setattr(
"hermes_cli.local_runtime.bootstrap.refresh_local_runtime",
lambda: False)
from hermes_cli.local_runtime.catalog import CATALOG
# Catalog size for this entry is in the tens of GB — wildly stale
# versus our 48-byte body. The download must still land.
entry_id = CATALOG[0].id
r = client.post("/api/local-models/download", json={"model_id": entry_id})
assert r.status_code == 200
job_id = r.json()["job_id"]
deadline = time.time() + 10
status = None
while time.time() < deadline:
status = client.get(f"/api/local-models/jobs/{job_id}").json()
if status["status"] in ("done", "error"):
break
time.sleep(0.05)
assert status is not None and status["status"] == "done", status.get("error")