test_mists.py
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| 1 | """Section 18 — Mists Stress Suite (Tier 4). |
| 2 | |
| 3 | Covers the three stress scenarios from the Phase 8 spec: |
| 4 | |
| 5 | Concurrent creates 50 mists created concurrently via asyncio.gather — |
| 6 | all must succeed with unique mist_ids; no DB-level |
| 7 | serialisation errors or integrity violations. |
| 8 | |
| 9 | Large explore 200 mists seeded directly into the DB; the explore |
| 10 | endpoint must return all of them across cursor-paginated |
| 11 | requests with correct total, no duplicates, and no |
| 12 | dropped rows. |
| 13 | |
| 14 | Fork chains Deep fork chain built to the platform maximum (depth 5) |
| 15 | via repeated POST /api/mists/{id}/fork calls; the chain |
| 16 | must complete without error and the depth-5 node must |
| 17 | carry fork_depth=5 and a populated fork_parent_id. |
| 18 | |
| 19 | All tests target the HTTP layer (AsyncClient) to exercise the full stack: |
| 20 | auth, validation, service, and ORM. |
| 21 | """ |
| 22 | from __future__ import annotations |
| 23 | |
| 24 | import asyncio |
| 25 | import secrets |
| 26 | import time |
| 27 | from datetime import datetime, timezone |
| 28 | |
| 29 | import pytest |
| 30 | from httpx import AsyncClient |
| 31 | from sqlalchemy.ext.asyncio import AsyncSession |
| 32 | |
| 33 | from musehub.core.genesis import compute_identity_id, compute_repo_id |
| 34 | from musehub.db.musehub_repo_models import MusehubRepo |
| 35 | from musehub.types.json_types import JSONObject, JSONValue, StrDict |
| 36 | |
| 37 | _OWNER = "testuser" # matches conftest._TEST_HANDLE |
| 38 | |
| 39 | |
| 40 | def _payload(**overrides: JSONValue) -> JSONObject: |
| 41 | base: JSONObject = { |
| 42 | "filename": f"stress_{secrets.token_hex(4)}.py", |
| 43 | "content": f"# stress test\nvalue = {secrets.token_hex(16)!r}\n", |
| 44 | "visibility": "public", |
| 45 | } |
| 46 | base.update(overrides) |
| 47 | return base |
| 48 | |
| 49 | |
| 50 | async def _create(client: AsyncClient, headers: StrDict, **overrides: JSONValue) -> JSONObject: |
| 51 | r = await client.post("/api/mists", json=_payload(**overrides), headers=headers) |
| 52 | assert r.status_code == 201, r.text |
| 53 | return dict(r.json()) |
| 54 | |
| 55 | |
| 56 | # ═══════════════════════════════════════════════════════════════════════════════ |
| 57 | # Concurrent creates |
| 58 | # ═══════════════════════════════════════════════════════════════════════════════ |
| 59 | |
| 60 | class TestConcurrentCreates: |
| 61 | """15 mists created concurrently — all must succeed, all IDs unique.""" |
| 62 | |
| 63 | @pytest.mark.anyio |
| 64 | async def test_concurrent_creates_all_succeed( |
| 65 | self, client: AsyncClient, auth_headers: StrDict |
| 66 | ) -> None: |
| 67 | n = 15 |
| 68 | |
| 69 | async def _one() -> JSONObject: |
| 70 | return await _create(client, auth_headers) |
| 71 | |
| 72 | results = await asyncio.gather(*[_one() for _ in range(n)]) |
| 73 | |
| 74 | assert len(results) == n, f"Expected {n} results, got {len(results)}" |
| 75 | ids = [r["mistId"] for r in results] |
| 76 | assert len(set(ids)) == n, ( |
| 77 | f"Expected {n} unique mist IDs, got {len(set(ids))} — " |
| 78 | "duplicate content across concurrent requests" |
| 79 | ) |
| 80 | |
| 81 | @pytest.mark.anyio |
| 82 | async def test_concurrent_creates_all_visible_in_list( |
| 83 | self, client: AsyncClient, auth_headers: StrDict |
| 84 | ) -> None: |
| 85 | """Created mists must all appear in the owner list.""" |
| 86 | unique_tag = secrets.token_hex(6) |
| 87 | n = 15 |
| 88 | |
| 89 | async def _one() -> str: |
| 90 | r = await _create(client, auth_headers, tags=[unique_tag]) |
| 91 | return r["mistId"] |
| 92 | |
| 93 | created_ids = set(await asyncio.gather(*[_one() for _ in range(n)])) |
| 94 | |
| 95 | # Paginate the owner list and collect all IDs with our tag. |
| 96 | found: set[str] = set() |
| 97 | cursor: str | None = None |
| 98 | while True: |
| 99 | params: JSONObject = {"limit": 100} |
| 100 | if cursor: |
| 101 | params["cursor"] = cursor |
| 102 | r = await client.get(f"/api/{_OWNER}/mists", params=params) |
| 103 | assert r.status_code == 200 |
| 104 | body = r.json() |
| 105 | for m in body["mists"]: |
| 106 | if unique_tag in (m.get("tags") or []): |
| 107 | found.add(m["mistId"]) |
| 108 | cursor = body.get("nextCursor") |
| 109 | if not cursor: |
| 110 | break |
| 111 | |
| 112 | assert created_ids == found, ( |
| 113 | f"Created {len(created_ids)} mists but found {len(found)} with tag" |
| 114 | ) |
| 115 | |
| 116 | |
| 117 | # ═══════════════════════════════════════════════════════════════════════════════ |
| 118 | # Large explore — 200 mist seed + full pagination |
| 119 | # ═══════════════════════════════════════════════════════════════════════════════ |
| 120 | |
| 121 | class TestLargeExplore: |
| 122 | """Seed 200 mists directly into the DB then paginate explore to collect all.""" |
| 123 | |
| 124 | @pytest.mark.anyio |
| 125 | async def test_200_mist_explore_no_duplicates( |
| 126 | self, client: AsyncClient, db_session: AsyncSession |
| 127 | ) -> None: |
| 128 | from muse.plugins.mist.plugin import compute_mist_id |
| 129 | from musehub.services.musehub_mists import create_mist as _svc_create |
| 130 | |
| 131 | # Use a unique artifact_type so this test's rows are isolated. |
| 132 | unique_type = f"stress_{secrets.token_hex(4)}" |
| 133 | n = 200 |
| 134 | |
| 135 | _stress_owner_id = compute_identity_id(b"stressuser") |
| 136 | for i in range(n): |
| 137 | content = f"# stress explore {i}\nvalue = {secrets.token_hex(16)!r}\n" |
| 138 | mid = compute_mist_id(content.encode()) |
| 139 | _slug = f"mist_{mid}" |
| 140 | _created_at = datetime.now(tz=timezone.utc) |
| 141 | repo = MusehubRepo( |
| 142 | repo_id=compute_repo_id(_stress_owner_id, _slug, "code", _created_at.isoformat()), |
| 143 | name=f"repo_{mid}", owner="stressuser", slug=_slug, |
| 144 | visibility="public", owner_user_id=_stress_owner_id, |
| 145 | created_at=_created_at, updated_at=_created_at, |
| 146 | ) |
| 147 | db_session.add(repo) |
| 148 | await db_session.flush() |
| 149 | await _svc_create( |
| 150 | db_session, |
| 151 | mist_id=mid, |
| 152 | filename=f"stress_{i:04d}.py", |
| 153 | content=content, |
| 154 | owner="stressuser", |
| 155 | repo_id=str(repo.repo_id), |
| 156 | artifact_type=unique_type, |
| 157 | ) |
| 158 | await db_session.commit() |
| 159 | |
| 160 | # Paginate through all pages and collect IDs. |
| 161 | collected: list[str] = [] |
| 162 | cursor: str | None = None |
| 163 | pages = 0 |
| 164 | |
| 165 | while True: |
| 166 | params: JSONObject = { |
| 167 | "artifact_type": unique_type, |
| 168 | "limit": 20, |
| 169 | } |
| 170 | if cursor: |
| 171 | params["cursor"] = cursor |
| 172 | r = await client.get("/api/mists/explore", params=params) |
| 173 | assert r.status_code == 200, r.text |
| 174 | body = r.json() |
| 175 | collected.extend(m["mistId"] for m in body["mists"]) |
| 176 | cursor = body.get("nextCursor") |
| 177 | pages += 1 |
| 178 | if not cursor: |
| 179 | break |
| 180 | |
| 181 | assert len(collected) == n, ( |
| 182 | f"Expected {n} mists, collected {len(collected)} across {pages} page(s)" |
| 183 | ) |
| 184 | assert len(set(collected)) == n, ( |
| 185 | f"Duplicate IDs in paginated explore output ({len(collected) - len(set(collected))} dups)" |
| 186 | ) |
| 187 | |
| 188 | @pytest.mark.anyio |
| 189 | async def test_large_explore_total_count_accurate( |
| 190 | self, client: AsyncClient, db_session: AsyncSession |
| 191 | ) -> None: |
| 192 | """The total field on the first page must reflect the full seed count.""" |
| 193 | from muse.plugins.mist.plugin import compute_mist_id |
| 194 | from musehub.services.musehub_mists import create_mist as _svc_create |
| 195 | |
| 196 | unique_type = f"cnt_{secrets.token_hex(4)}" |
| 197 | n = 50 |
| 198 | |
| 199 | _count_owner_id = compute_identity_id(b"countuser") |
| 200 | for i in range(n): |
| 201 | content = f"# count check {i} {secrets.token_hex(16)}" |
| 202 | mid = compute_mist_id(content.encode()) |
| 203 | _slug = f"rcm_{mid}" |
| 204 | _created_at = datetime.now(tz=timezone.utc) |
| 205 | repo = MusehubRepo( |
| 206 | repo_id=compute_repo_id(_count_owner_id, _slug, "code", _created_at.isoformat()), |
| 207 | name=f"rc_{mid}", owner="countuser", slug=_slug, |
| 208 | visibility="public", owner_user_id=_count_owner_id, |
| 209 | created_at=_created_at, updated_at=_created_at, |
| 210 | ) |
| 211 | db_session.add(repo) |
| 212 | await db_session.flush() |
| 213 | await _svc_create( |
| 214 | db_session, |
| 215 | mist_id=mid, |
| 216 | filename=f"count_{i}.py", |
| 217 | content=content, |
| 218 | owner="countuser", |
| 219 | repo_id=str(repo.repo_id), |
| 220 | artifact_type=unique_type, |
| 221 | ) |
| 222 | await db_session.commit() |
| 223 | |
| 224 | r = await client.get( |
| 225 | "/api/mists/explore", |
| 226 | params={"artifact_type": unique_type, "limit": 10}, |
| 227 | ) |
| 228 | assert r.status_code == 200 |
| 229 | body = r.json() |
| 230 | assert body["total"] == n, ( |
| 231 | f"total={body['total']} but seeded {n} mists with type={unique_type!r}" |
| 232 | ) |
| 233 | |
| 234 | @pytest.mark.anyio |
| 235 | async def test_large_explore_under_2s( |
| 236 | self, client: AsyncClient, db_session: AsyncSession |
| 237 | ) -> None: |
| 238 | """First-page explore of 200+ mists must respond in under 2 seconds.""" |
| 239 | from muse.plugins.mist.plugin import compute_mist_id |
| 240 | from musehub.services.musehub_mists import create_mist as _svc_create |
| 241 | |
| 242 | unique_type = f"perf_{secrets.token_hex(4)}" |
| 243 | n = 100 |
| 244 | |
| 245 | _perf_owner_id = compute_identity_id(b"perfuser") |
| 246 | for i in range(n): |
| 247 | content = f"# perf {i} {secrets.token_hex(16)}" |
| 248 | mid = compute_mist_id(content.encode()) |
| 249 | _slug = f"pm_{mid}" |
| 250 | _created_at = datetime.now(tz=timezone.utc) |
| 251 | repo = MusehubRepo( |
| 252 | repo_id=compute_repo_id(_perf_owner_id, _slug, "code", _created_at.isoformat()), |
| 253 | name=f"p_{mid}", owner="perfuser", slug=_slug, |
| 254 | visibility="public", owner_user_id=_perf_owner_id, |
| 255 | created_at=_created_at, updated_at=_created_at, |
| 256 | ) |
| 257 | db_session.add(repo) |
| 258 | await db_session.flush() |
| 259 | await _svc_create( |
| 260 | db_session, |
| 261 | mist_id=mid, |
| 262 | filename=f"perf_{i}.py", |
| 263 | content=content, |
| 264 | owner="perfuser", |
| 265 | repo_id=str(repo.repo_id), |
| 266 | artifact_type=unique_type, |
| 267 | ) |
| 268 | await db_session.commit() |
| 269 | |
| 270 | start = time.monotonic() |
| 271 | r = await client.get( |
| 272 | "/api/mists/explore", |
| 273 | params={"artifact_type": unique_type, "limit": 20}, |
| 274 | ) |
| 275 | elapsed = time.monotonic() - start |
| 276 | |
| 277 | assert r.status_code == 200 |
| 278 | assert elapsed < 2.0, f"Explore took {elapsed:.3f}s — expected < 2s" |
| 279 | |
| 280 | |
| 281 | # ═══════════════════════════════════════════════════════════════════════════════ |
| 282 | # Fork chains |
| 283 | # ═══════════════════════════════════════════════════════════════════════════════ |
| 284 | |
| 285 | class TestForkChains: |
| 286 | """Full-depth fork chain built via HTTP; structural invariants verified.""" |
| 287 | |
| 288 | @pytest.mark.anyio |
| 289 | async def test_fork_chain_depth_and_parent_ids( |
| 290 | self, client: AsyncClient, auth_headers: StrDict |
| 291 | ) -> None: |
| 292 | """Each fork has the correct fork_parent_id and fork_depth.""" |
| 293 | root = await _create(client, auth_headers) |
| 294 | root_id = root["mistId"] |
| 295 | |
| 296 | chain = [root_id] |
| 297 | for depth in range(1, 6): |
| 298 | r = await client.post( |
| 299 | f"/api/mists/{chain[-1]}/fork", headers=auth_headers |
| 300 | ) |
| 301 | assert r.status_code == 201, ( |
| 302 | f"Fork at depth {depth} failed: {r.status_code} {r.text}" |
| 303 | ) |
| 304 | fork_id = r.json()["mistId"] |
| 305 | chain.append(fork_id) |
| 306 | |
| 307 | # Verify each fork's metadata. |
| 308 | for depth in range(1, 6): |
| 309 | r = await client.get(f"/api/mists/{chain[depth]}") |
| 310 | assert r.status_code == 200 |
| 311 | body = r.json() |
| 312 | assert body["forkParentId"] == chain[depth - 1], ( |
| 313 | f"Depth {depth}: forkParentId={body['forkParentId']!r}, " |
| 314 | f"expected {chain[depth - 1]!r}" |
| 315 | ) |
| 316 | assert body["forkDepth"] == depth, ( |
| 317 | f"Depth {depth}: forkDepth={body['forkDepth']!r}, expected {depth}" |
| 318 | ) |
| 319 | |
| 320 | @pytest.mark.anyio |
| 321 | async def test_fork_inherits_content_and_filename( |
| 322 | self, client: AsyncClient, auth_headers: StrDict |
| 323 | ) -> None: |
| 324 | root = await _create( |
| 325 | client, auth_headers, |
| 326 | content=f"def root_fn(): return 'root'\n{secrets.token_hex(16)}", |
| 327 | filename="root.py", |
| 328 | ) |
| 329 | r = await client.post( |
| 330 | f"/api/mists/{root['mistId']}/fork", headers=auth_headers |
| 331 | ) |
| 332 | assert r.status_code == 201 |
| 333 | fork_id = r.json()["mistId"] |
| 334 | |
| 335 | r2 = await client.get(f"/api/mists/{fork_id}") |
| 336 | assert r2.status_code == 200 |
| 337 | body = r2.json() |
| 338 | assert body["content"] == root["content"] |
| 339 | assert body["filename"] == root["filename"] |
| 340 | |
| 341 | @pytest.mark.anyio |
| 342 | async def test_fork_count_increments_on_parent( |
| 343 | self, client: AsyncClient, auth_headers: StrDict |
| 344 | ) -> None: |
| 345 | root = await _create(client, auth_headers) |
| 346 | initial_forks = root.get("forkCount", 0) |
| 347 | |
| 348 | for _ in range(3): |
| 349 | r = await client.post( |
| 350 | f"/api/mists/{root['mistId']}/fork", headers=auth_headers |
| 351 | ) |
| 352 | assert r.status_code == 201 |
| 353 | |
| 354 | r = await client.get(f"/api/mists/{root['mistId']}") |
| 355 | assert r.status_code == 200 |
| 356 | assert r.json()["forkCount"] == initial_forks + 3 |
| 357 | |
| 358 | @pytest.mark.anyio |
| 359 | async def test_fork_chain_completes_under_5s( |
| 360 | self, client: AsyncClient, auth_headers: StrDict |
| 361 | ) -> None: |
| 362 | """Building a full 5-fork chain must complete in under 5 seconds.""" |
| 363 | root = await _create(client, auth_headers) |
| 364 | current_id = root["mistId"] |
| 365 | |
| 366 | start = time.monotonic() |
| 367 | for _ in range(5): |
| 368 | r = await client.post( |
| 369 | f"/api/mists/{current_id}/fork", headers=auth_headers |
| 370 | ) |
| 371 | assert r.status_code == 201 |
| 372 | current_id = r.json()["mistId"] |
| 373 | elapsed = time.monotonic() - start |
| 374 | |
| 375 | assert elapsed < 5.0, f"Fork chain took {elapsed:.3f}s — expected < 5s" |