✨ forks: helper skeleton, state, where and init (block 1.1)

This commit is contained in:
2026-10-16 12:29:36 +02:00
parent 670401d075
commit d36ac2fa32
4 changed files with 1836 additions and 0 deletions
@@ -63,3 +63,33 @@ Intake 2026-10-16 12:18 +0200, Athanor `claude-opus-5-5[1m]`. Start commit `83f6
| Block | Owner (model id) | Commit | Tokens (if known) |
|---|---|---|---|
### Block 1.1 — Skeleton, state, where, init
- Model: `claude-opus-5-5[1m]`
- Start / end: Fri Oct 16 12:20:48 +0200 2026 / Fri Oct 16 12:28:49 +0200 2026 (`date`; tests and gates finished by the end time, the note and commit followed)
- Done: New `plugins/spire/skills/forks/forks.py` (plan §2 PEP 723 header, stdlib only, LF): argparse dispatch for all 13 commands; exit codes 0/2/3/4 as constants; stdout = exactly one JSON object per call (argparse errors, `--help` and uncaught exceptions included); path normalisation (relative, `G:\`, `G:/`, `/g/…`, `/c/…`; POSIX `abspath`); state dir `<run without .md>-forks` with `.gitignore` (`raw/`, `*.lock`), `mcp-empty.json`, `jobs/ briefs/ notes/ results/ logs/ raw/`; `registry.json` `"schema": 1`; `RegistryLock` (create-exclusive, stale after 30 s, token-checked release); atomic temp-then-`os.replace` with `PermissionError` retries (40 × 50 ms) for writers and readers; `ledger_append` (caller holds the lock); `_now()` / `_iso()`; `pid_record` / `pid_alive` / `proc_ctime` (Windows `OpenProcess` + `GetProcessTimes`, POSIX `/proc/<pid>/stat`); `git()` always `git --no-optional-locks`; scrub constants (`SCRUB_DROP`, `SCRUB_DROP_PATTERNS`, `SCRUB_KEEP`, `SCRUB_PINNED` + `CLAUDE_CODE_EXECPATH`) and `scrubbed_env(binary)`; `supervisor_interpreter()` (C6); `SPAWN_METHOD` (`cim-hidden` / `setsid`); `where`; `init` (all launch fields and defaults, fingerprint sha256 of canonical JSON, config extras incl. `orphan_after` 1200 and `pings` on, idempotency, C8 admission, all validation before any write). Launching and Phase 1 commands return `{"error":"not implemented","block":"1.2"}`, Phase 2 ones `{"phase":2}`, exit 2. New `preamble.md` (digest content, short). New `tests/test_forks.py` (PEP 723 + `unittest`, imports `forks.py` by path, 52 tests: path forms, state-dir derivation, scrub, lock contention in-process and across processes, stale-lock recovery by `at`, by mtime and under an injected `_now`, safe release after takeover, replace while a reader holds the target (retried, `attempts > 1` asserted on Windows), registry schema, ledger, pid + ctime, `init` defaults / idempotency / change before and after a fake base / bad model ids / `plan` / unknown mode and effort / missing binary / agent, C8 exact / `[1m]` strip / family alias / no list / unlisted → exit 2 naming the files with settings untouched, `where` via `uv run` with a stub and with the host binary, error-case stdout invariant via `uv run`, unknown command, not implemented, `--help`, internal error, N3 guard). Stub binary generated at test runtime in `tempfile` (`.cmd` on Windows); `USER_SETTINGS_PATH` monkeypatched to a temp file, so no test reads `~/.claude`.
- Gates:
- G-unit `uv run plugins/spire/skills/forks/tests/test_forks.py` → exit 0, `Ran 52 tests in 3.173s` / `OK`.
- G-where `uv run plugins/spire/skills/forks/forks.py where` → exit 0; stdout 1 line, a JSON object, `ok: true` (binary `CLAUDE_CODE_EXECPATH` 2.1.299, Python 3.13.1, uv 0.5.13, git 2.34.1.windows.1, `spawn: cim-hidden`). uv's `Reading inline script metadata…` line goes to stderr.
- Deviations from plan (digest):
- Argument sets for the 1.2 commands are already declared in argparse from the digest (`train --base --brief [--block --phase]`, `fork --base --block --brief [--phase --mode --paths --max-minutes --max-budget-usd --force]`, `continue --job --brief [--max-minutes]`, `wait [jobs] --all --any --timeout`, `expire --base|--all`, `kill --job`, `_supervise --job`). 1.2 may change them.
- The N3 guard is already in the dispatch for `train`, `fork`, `continue`, `rebase` (exit 2 before "not implemented" when `SPIRE_FORKS_CHILD` is set); `tick` left for Phase 2.
- `--help` returns `{"help": …, "commands": […]}` on stdout with exit 0 (keeps the invariant). Unknown extra arguments are a usage error (exit 2), except on the Phase 2 stubs, which tolerate them until Phase 2.
- Uncaught exceptions: exit 2, `{"error":"internal error","type","detail"}`, traceback on stderr (the digest defines no code for it).
- `init` takes more flags than the digest lists: `--ttl-s`, `--stall-after-s`, and one per threshold (`--rebase-commits`, `--rebase-lines`, `--rebase-delta-tokens`, `--max-base-tokens`, `--max-rebases`). Thresholds sit nested under `config.thresholds`. Config also carries `binary_resolved_by` and `model_admission` (how, not what; ignored by the change comparison).
- `where` takes an optional `--binary` (tests use a stub) and also reports `python.supervisor_interpreter`, `platform`, `scrub.drop_patterns`; on failure it carries both `reason` and `error`.
- `preamble.md` adds two lines beyond the digest: "nobody can answer a question mid-run" and "never push, rebase or reset" (mirrors the deny list).
- Flagged for review:
- `--effort` is restricted to `low|medium|high|xhigh|max` and `--permission-mode` to `default|acceptEdits|dontAsk|bypassPermissions|auto` (`plan` refused). Both sets are assumed, not checked against `claude --help`.
- Fingerprint launch dict: `model, effort, permission_mode, tools, allowed_tools, disallowed_tools, mcp {strict, config path}, append_system_prompt {path, sha256}, agent {name, path, sha256} | null, cwd, binary {path, version, size, mtime}, env.pinned` (only the two TTL/autoupdater vars; `SPIRE_FORKS_CHILD` and `CLAUDE_CODE_EXECPATH` are added at launch by `scrubbed_env`, outside the hash). The mcp config path is per run, so the hash differs between runs by construction.
- `--allowed-tools` / `--disallowed-tools` are repeatable lists and each value is also split on commas outside parentheses (`Bash(a,b)` stays one rule).
- Stale-lock breaking re-reads the lock and removes it only if unchanged; two breakers racing still have a narrow window. Release removes the lock only if its token is still ours. Lock wait is 45 s (longer than the 30 s stale age).
- C8: an unreadable or invalid settings file is skipped with a stderr note; `availableModels: []` counts as a list that admits nothing.
- Host env has `ANTHROPIC_BASE_URL`; it is on neither list, so it is kept for the child and listed under `scrub.unknown` by `where` (the P0 probes kept it too and auth worked). The coordinator may want it on a list.
- `pid_alive` treats `ERROR_ACCESS_DENIED` from `OpenProcess` as alive with an unverifiable creation time.
- Git Bash paths whose first segment is not a single letter (`/tmp/x`) are treated as rooted on the cwd's drive, not mapped to Git's install dir.
- The model regex is the digest's; it admits ids like `claude-sonnet` with no version.
- Left for later: everything the digest assigns to 1.2 (templates, launch, supervise, results, ledger lines, `wait`/`list`/`expire`/`kill`, no-visible-window test, `run.last_orchestrator_call_at`); Phase 2 commands.
- Expected broken: `train`, `fork`, `continue`, `wait`, `list`, `expire`, `kill`, `_supervise` exit 2 "not implemented" (block 1.2); `rebase`, `usage`, `tick` (Phase 2).
- Commits: see the follow-up hash commit below.
File diff suppressed because it is too large Load Diff
+9
View File
@@ -0,0 +1,9 @@
# Headless implementer (spire:forks)
You run headless under `claude -p`. You are trained once on a build, then forked once per block; any session of yours may later be resumed or forked again. Nobody can answer a question mid-run: decide, act, and record what you decided.
- Do the work yourself. Never dispatch agents, and never start `claude` or the forks helper (`forks.py`).
- Never use `run_in_background` on Bash. Run every command in the foreground.
- Stage and commit by explicit paths only, and only when your brief says this fork commits. Never push, rebase or reset.
- Write gate and test output to `.txt` files under the state dir's `logs/` folder (the brief names the state dir).
- When you finish a block, write the handoff note to the path the brief names, in the run-log handoff-note format (`plugins/spire/skills/implementation/references/run-log.md` in the Spire plugin), and stamp your exact model id.
@@ -0,0 +1,673 @@
# /// script
# requires-python = ">=3.10"
# dependencies = []
# ///
"""Unit tests for the spire:forks helper.
Run from the repo root: `uv run plugins/spire/skills/forks/tests/test_forks.py`.
Imports forks.py by path. Everything generated (stub binary, state dirs, settings files)
lives under `tempfile`; nothing touches ~/.claude or the repo's own state.
"""
from __future__ import annotations
import contextlib
import importlib.util
import io
import json
import os
import shutil
import subprocess
import sys
import tempfile
import threading
import time
import unittest
from unittest import mock
HERE = os.path.dirname(os.path.abspath(__file__))
FORKS_PY = os.path.join(os.path.dirname(HERE), "forks.py")
def _load_forks():
spec = importlib.util.spec_from_file_location("forks", FORKS_PY)
mod = importlib.util.module_from_spec(spec)
sys.modules["forks"] = mod
spec.loader.exec_module(mod)
return mod
forks = _load_forks()
IS_WINDOWS = os.name == "nt"
STUB_VERSION = "2.1.999"
def make_stub_binary(d: str, version: str = STUB_VERSION) -> str:
"""A fake `claude` that answers --version. Generated at runtime (A18), never committed."""
if IS_WINDOWS:
p = os.path.join(d, "claude-stub.cmd")
with open(p, "w", newline="\r\n") as f:
f.write("@echo off\necho %s (Claude Code stub)\n" % version)
else:
p = os.path.join(d, "claude-stub")
with open(p, "w", newline="\n") as f:
f.write("#!/bin/sh\necho '%s (Claude Code stub)'\n" % version)
os.chmod(p, 0o755)
return p
def call(argv):
"""Run forks.main in-process. Returns (exit code, parsed JSON, raw stdout)."""
out, err = io.StringIO(), io.StringIO()
with contextlib.redirect_stdout(out), contextlib.redirect_stderr(err):
code = forks.main(list(argv))
raw = out.getvalue()
return code, json.loads(raw), raw
def child_env():
env = dict(os.environ)
env.pop(forks.CHILD_MARKER, None)
return env
class Base(unittest.TestCase):
def setUp(self):
self.tmp = tempfile.mkdtemp(prefix="forks-test-")
self.addCleanup(shutil.rmtree, self.tmp, ignore_errors=True)
env_patch = mock.patch.dict(os.environ)
env_patch.start()
self.addCleanup(env_patch.stop)
os.environ.pop(forks.CHILD_MARKER, None)
def assert_one_json_line(self, raw: str):
self.assertTrue(raw.endswith("\n"), repr(raw[-40:]))
self.assertEqual(raw.count("\n"), 1, raw)
obj = json.loads(raw)
self.assertIsInstance(obj, dict)
return obj
# --------------------------------------------------------------------------------------
class PathTests(Base):
def test_windows_forms(self):
cwd = "G:\\dev\\proj"
cases = {
"docs\\a.md": "G:\\dev\\proj\\docs\\a.md",
"docs/a.md": "G:\\dev\\proj\\docs\\a.md",
"G:\\x\\y.md": "G:\\x\\y.md",
"G:/x/y.md": "G:\\x\\y.md",
"g:/x/y.md": "G:\\x\\y.md",
"/g/x/y.md": "G:\\x\\y.md",
"/c/Users/me": "C:\\Users\\me",
"/c": "C:\\",
"/c/": "C:\\",
"../other/./z.md": "G:\\dev\\other\\z.md",
"\\rooted\\a": "G:\\rooted\\a",
"/tmp/x": "G:\\tmp\\x", # not a drive form: rooted on the cwd's drive
" G:/x/y.md ": "G:\\x\\y.md",
}
for src, want in cases.items():
with self.subTest(src=src):
self.assertEqual(forks.norm_path(src, cwd=cwd, windows=True), want)
def test_windows_cwd_in_gitbash_form(self):
self.assertEqual(forks.norm_path("a.md", cwd="/g/dev/proj", windows=True), "G:\\dev\\proj\\a.md")
def test_posix_forms(self):
cwd = "/home/u/proj"
self.assertEqual(forks.norm_path("a/b.md", cwd=cwd, windows=False), "/home/u/proj/a/b.md")
self.assertEqual(forks.norm_path("/abs/x.md", cwd=cwd, windows=False), "/abs/x.md")
self.assertEqual(forks.norm_path("../z", cwd=cwd, windows=False), "/home/u/z")
def test_native_relative(self):
self.assertEqual(os.path.normcase(forks.norm_path("x/y.md")),
os.path.normcase(os.path.abspath(os.path.join("x", "y.md"))))
def test_empty_refused(self):
with self.assertRaises(forks.ForksError):
forks.norm_path(" ")
@unittest.skipUnless(IS_WINDOWS, "Windows path forms")
def test_state_dir_windows_forms(self):
want = "G:\\w\\reports\\2026-10-16-08-x-run-forks"
for src in ("G:\\w\\reports\\2026-10-16-08-x-run.md", "G:/w/reports/2026-10-16-08-x-run.md",
"/g/w/reports/2026-10-16-08-x-run.md"):
with self.subTest(src=src):
self.assertEqual(forks.state_dir_for(src), want)
def test_state_dir_relative(self):
got = forks.state_dir_for(os.path.join("reports", "2026-10-16-08-x-run.md"))
self.assertEqual(os.path.normcase(got),
os.path.normcase(os.path.abspath(os.path.join("reports", "2026-10-16-08-x-run-forks"))))
def test_state_dir_needs_md(self):
with self.assertRaises(forks.ForksError) as cm:
forks.state_dir_for(os.path.join(self.tmp, "run.txt"))
self.assertEqual(cm.exception.code, 2)
# --------------------------------------------------------------------------------------
class ScrubTests(Base):
def test_scrubbed_env(self):
venv = os.path.join(self.tmp, "venv")
keep_dir = os.path.join(self.tmp, "bin")
host = {
"CLAUDE_CODE_MESSAGING_SOCKET": "s", "CLAUDE_CODE_SESSION_ID": "x", "CLAUDE_EFFORT": "high",
"ANTHROPIC_API_KEY": "k", "ANTHROPIC_DEFAULT_OPUS_MODEL": "m", "UV_CACHE_DIR": "c",
"VIRTUAL_ENV": venv, "CLAUDECODE": "1", "CLAUDE_CODE_CHILD_SESSION": "1", "AI_AGENT": "a",
"CLAUDE_PID": "1", "ANTHROPIC_BASE_URL": "u", "HOME": "h",
"CLAUDE_CODE_PROMPT_CACHE_TTL": "5m", "CLAUDE_CODE_EXECPATH": "old",
"PATH": os.pathsep.join([os.path.join(venv, "Scripts"), keep_dir]),
}
env = forks.scrubbed_env("BIN", environ=host)
for k in ("CLAUDE_CODE_MESSAGING_SOCKET", "CLAUDE_CODE_SESSION_ID", "CLAUDE_EFFORT",
"ANTHROPIC_API_KEY", "ANTHROPIC_DEFAULT_OPUS_MODEL", "UV_CACHE_DIR", "VIRTUAL_ENV"):
self.assertNotIn(k, env)
for k in ("CLAUDECODE", "CLAUDE_CODE_CHILD_SESSION", "AI_AGENT", "CLAUDE_PID",
"ANTHROPIC_BASE_URL", "HOME"):
self.assertEqual(env[k], host[k])
self.assertEqual(env["CLAUDE_CODE_PROMPT_CACHE_TTL"], "1h")
self.assertEqual(env["DISABLE_AUTOUPDATER"], "1")
self.assertEqual(env["SPIRE_FORKS_CHILD"], "1")
self.assertEqual(env["CLAUDE_CODE_EXECPATH"], "BIN")
self.assertEqual(env["PATH"], keep_dir)
def test_unknown(self):
host = {"CLAUDECODE": "1", "CLAUDE_EFFORT": "x", "CLAUDE_CODE_NEW_THING": "1",
"ANTHROPIC_BASE_URL": "u", "OTHER": "1", "CLAUDE_CODE_EXECPATH": "p"}
self.assertEqual(forks.scrub_unknown(host), ["ANTHROPIC_BASE_URL", "CLAUDE_CODE_NEW_THING"])
# --------------------------------------------------------------------------------------
class LockTests(Base):
def setUp(self):
super().setUp()
self.state = os.path.join(self.tmp, "st")
os.makedirs(self.state)
def test_contention_times_out(self):
with forks.RegistryLock(self.state):
t0 = time.monotonic()
with self.assertRaises(forks.ForksError) as cm:
forks.RegistryLock(self.state, timeout=0.3).acquire()
self.assertGreaterEqual(time.monotonic() - t0, 0.25)
self.assertEqual(cm.exception.payload["error"], "registry locked")
with forks.RegistryLock(self.state, timeout=0.3):
pass
self.assertFalse(os.path.exists(forks.lock_path(self.state)))
def test_waiter_gets_lock_after_release(self):
l1 = forks.RegistryLock(self.state).acquire()
threading.Timer(0.2, l1.release).start()
t0 = time.monotonic()
with forks.RegistryLock(self.state, timeout=5) as l2:
self.assertGreaterEqual(time.monotonic() - t0, 0.15)
self.assertFalse(l2.broke_stale)
def test_contention_across_processes(self):
code = ("import importlib.util,sys;"
"s=importlib.util.spec_from_file_location('forks',sys.argv[1]);m=importlib.util.module_from_spec(s);"
"s.loader.exec_module(m)\n"
"try:\n m.RegistryLock(sys.argv[2],timeout=0.3).acquire(); sys.exit(0)\n"
"except m.ForksError: sys.exit(7)\n")
with forks.RegistryLock(self.state):
r = subprocess.run([sys.executable, "-c", code, FORKS_PY, self.state], capture_output=True)
self.assertEqual(r.returncode, 7, r.stderr)
def test_stale_lock_broken(self):
with open(forks.lock_path(self.state), "w") as f:
json.dump({"pid": 1, "at": time.time() - (forks.LOCK_STALE_S + 1), "token": "old"}, f)
with forks.RegistryLock(self.state, timeout=2) as lk:
self.assertTrue(lk.broke_stale)
with open(forks.lock_path(self.state)) as f:
self.assertEqual(json.load(f)["token"], lk.token)
def test_garbage_stale_lock_broken_by_mtime(self):
p = forks.lock_path(self.state)
with open(p, "w") as f:
f.write("")
old = time.time() - (forks.LOCK_STALE_S + 5)
os.utime(p, (old, old))
with forks.RegistryLock(self.state, timeout=2) as lk:
self.assertTrue(lk.broke_stale)
def test_fresh_lock_not_broken(self):
with open(forks.lock_path(self.state), "w") as f:
json.dump({"pid": 1, "at": time.time() - 5, "token": "other"}, f)
with self.assertRaises(forks.ForksError):
forks.RegistryLock(self.state, timeout=0.3).acquire()
def test_stale_under_injected_clock_and_safe_release(self):
l1 = forks.RegistryLock(self.state).acquire()
real = time.time()
with mock.patch.object(forks, "_now", lambda: real + forks.LOCK_STALE_S + 1):
l2 = forks.RegistryLock(self.state, timeout=2).acquire()
self.assertTrue(l2.broke_stale)
l1.release() # must not remove l2's lock
self.assertTrue(os.path.exists(forks.lock_path(self.state)))
l2.release()
self.assertFalse(os.path.exists(forks.lock_path(self.state)))
# --------------------------------------------------------------------------------------
class AtomicTests(Base):
def test_replace_while_reader_holds_target(self):
target = os.path.join(self.tmp, "registry.json")
forks.write_json_atomic(target, {"v": 1})
opened, done = threading.Event(), threading.Event()
def reader():
with open(target, "rb") as f:
opened.set()
time.sleep(0.4)
f.read()
done.set()
th = threading.Thread(target=reader)
th.start()
opened.wait(2)
attempts = forks.write_json_atomic(target, {"v": 2})
th.join()
self.assertEqual(forks.read_json(target), {"v": 2})
if IS_WINDOWS:
self.assertGreater(attempts, 1, "replace should have hit a sharing violation and retried")
self.assertEqual([n for n in os.listdir(self.tmp) if n.endswith(".tmp")], [])
def test_read_json_missing_is_none(self):
self.assertIsNone(forks.read_json(os.path.join(self.tmp, "nope.json")))
def test_registry_roundtrip_and_schema(self):
st = os.path.join(self.tmp, "st")
forks.ensure_state(st)
with forks.RegistryLock(st):
forks.write_registry(st, forks.new_registry())
reg = forks.read_registry(st)
self.assertEqual(reg["schema"], 1)
with open(forks.registry_path(st), "rb") as f:
self.assertNotIn(b"\r\n", f.read())
forks.write_json_atomic(forks.registry_path(st), {"schema": 99})
with self.assertRaises(forks.ForksError):
forks.read_registry(st)
def test_ledger_append(self):
st = os.path.join(self.tmp, "st")
forks.ensure_state(st)
with forks.RegistryLock(st):
forks.ledger_append(st, {"job": "j0001"})
forks.ledger_append(st, {"job": "j0002"})
with open(forks.ledger_path(st), "rb") as f:
lines = f.read().decode().splitlines()
self.assertEqual([json.loads(x)["job"] for x in lines], ["j0001", "j0002"])
# --------------------------------------------------------------------------------------
class PidTests(Base):
def test_own_pid(self):
rec = forks.pid_record(os.getpid())
self.assertTrue(forks.record_alive(rec))
if rec["ctime"] is not None:
self.assertFalse(forks.pid_alive(os.getpid(), rec["ctime"] + 1))
def test_dead_pid(self):
p = subprocess.Popen([sys.executable, "-c", "pass"])
rec = forks.pid_record(p.pid)
p.wait()
self.assertFalse(forks.record_alive(rec))
self.assertFalse(forks.pid_alive(0))
def test_supervisor_interpreter(self):
self.assertTrue(os.path.isfile(forks.supervisor_interpreter()))
# --------------------------------------------------------------------------------------
class InitTests(Base):
def setUp(self):
super().setUp()
self.cwd = os.path.join(self.tmp, "proj")
os.makedirs(os.path.join(self.cwd, ".claude", "agents"))
os.makedirs(os.path.join(self.tmp, "reports"))
self.run_log = os.path.join(self.tmp, "reports", "2026-10-16-08-t-run.md")
self.state = forks.state_dir_for(self.run_log)
self.user_settings = os.path.join(self.tmp, "home", ".claude", "settings.json")
p = mock.patch.object(forks, "USER_SETTINGS_PATH", self.user_settings)
p.start()
self.addCleanup(p.stop)
self.stub = make_stub_binary(self.tmp)
def init(self, *extra, model="claude-opus-5-5[1m]"):
argv = ["init", "--run", self.run_log, "--model", model, "--cwd", self.cwd,
"--binary", self.stub, *extra]
return call(argv)
def write_settings(self, path, models):
os.makedirs(os.path.dirname(path), exist_ok=True)
with open(path, "w") as f:
json.dump({"availableModels": models}, f)
def add_fake_base(self):
with forks.RegistryLock(self.state):
reg = forks.read_registry(self.state)
reg["bases"]["B1"] = {"status": "active", "session": "00000000-0000-0000-0000-000000000000"}
forks.write_registry(self.state, reg)
def reg_bytes(self):
with open(forks.registry_path(self.state), "rb") as f:
return f.read()
# --- basic ---
def test_init_creates_state_and_config(self):
code, out, raw = self.init()
self.assertEqual(code, 0, out)
self.assert_one_json_line(raw)
self.assertTrue(out["created"])
st = self.state
for d in forks.STATE_SUBDIRS:
self.assertTrue(os.path.isdir(os.path.join(st, d)), d)
with open(os.path.join(st, ".gitignore"), "rb") as f:
self.assertEqual(f.read(), b"raw/\n*.lock\n")
self.assertEqual(forks.read_json(forks.mcp_empty_path(st)), {"mcpServers": {}})
self.assertFalse(os.path.exists(forks.lock_path(st)))
reg = forks.read_registry(st)
self.assertEqual(reg["schema"], 1)
self.assertEqual(reg["bases"], {})
self.assertEqual(reg["jobs"], {})
cfg = reg["config"]
la = cfg["launch"]
self.assertEqual(la["model"], "claude-opus-5-5[1m]")
self.assertEqual(la["effort"], "high")
self.assertEqual(la["permission_mode"], "dontAsk")
self.assertEqual(la["tools"], forks.DEFAULT_TOOLS.split(","))
self.assertEqual(la["allowed_tools"], la["tools"])
self.assertEqual(la["disallowed_tools"], forks.DEFAULT_DISALLOWED)
self.assertEqual(la["mcp"], {"strict": True, "config": forks.mcp_empty_path(st)})
self.assertEqual(la["cwd"], forks.norm_path(self.cwd))
self.assertIsNone(la["agent"])
self.assertEqual(la["env"]["pinned"], {"CLAUDE_CODE_PROMPT_CACHE_TTL": "1h", "DISABLE_AUTOUPDATER": "1"})
b = la["binary"]
self.assertEqual(b["path"], forks.norm_path(self.stub))
self.assertTrue(os.path.isabs(b["path"]))
self.assertEqual(b["version"], STUB_VERSION)
self.assertEqual(b["size"], os.path.getsize(self.stub))
pre = la["append_system_prompt"]
self.assertEqual(pre["path"], forks.preamble_path())
self.assertEqual(pre["sha256"], forks._sha256_file(forks.preamble_path()))
self.assertEqual(cfg["fingerprint"], forks.fingerprint_hash(la))
self.assertEqual(len(cfg["fingerprint"]), 64)
self.assertEqual(cfg["parallel_cap"], 2)
self.assertEqual(cfg["orphan_after"], 1200)
self.assertEqual(cfg["pings"], "on")
self.assertEqual(cfg["ttl_s"], 3600)
self.assertEqual(cfg["max_minutes"], 90)
self.assertEqual(cfg["stall_after_s"], 900)
self.assertEqual(cfg["thresholds"], forks.THRESHOLD_DEFAULTS)
self.assertEqual(out["config"], cfg)
def test_fingerprint_canonical(self):
a = {"b": [1, 2], "a": {"y": 1, "x": None}}
b = {"a": {"x": None, "y": 1}, "b": [1, 2]}
self.assertEqual(forks.fingerprint_hash(a), forks.fingerprint_hash(b))
self.assertEqual(forks.canonical_json(a), '{"a":{"x":null,"y":1},"b":[1,2]}')
def test_list_flags(self):
code, out, _ = self.init("--tools", "Read,Bash", "--allowed-tools", "Read", "Bash(git status:*)",
"--disallowed-tools", "Bash(rm:*),Bash(a,b)")
self.assertEqual(code, 0, out)
la = out["config"]["launch"]
self.assertEqual(la["tools"], ["Read", "Bash"])
self.assertEqual(la["allowed_tools"], ["Read", "Bash(git status:*)"])
self.assertEqual(la["disallowed_tools"], ["Bash(rm:*)", "Bash(a,b)"])
# --- idempotency ---
def test_idempotent(self):
self.assertEqual(self.init()[0], 0)
before = self.reg_bytes()
code, out, _ = self.init()
self.assertEqual(code, 0, out)
self.assertFalse(out["created"])
self.assertFalse(out["changed"])
self.assertEqual(self.reg_bytes(), before)
def test_changed_values_before_base(self):
_, first, _ = self.init()
code, out, _ = self.init("--effort", "medium", "--orphan-after", "1500")
self.assertEqual(code, 0, out)
self.assertTrue(out["changed"])
self.assertIn("launch.effort", out["changed_fields"])
self.assertIn("orphan_after", out["changed_fields"])
self.assertIn("fingerprint", out["changed_fields"])
cfg = forks.read_registry(self.state)["config"]
self.assertEqual(cfg["launch"]["effort"], "medium")
self.assertEqual(cfg["orphan_after"], 1500)
self.assertNotEqual(cfg["fingerprint"], first["config"]["fingerprint"])
def test_changed_values_after_base_refused(self):
self.assertEqual(self.init()[0], 0)
self.add_fake_base()
before = self.reg_bytes()
code, out, raw = self.init("--effort", "medium")
self.assertEqual(code, 2)
self.assert_one_json_line(raw)
self.assertIn("base exists", out["error"])
self.assertEqual(out["bases"], ["B1"])
self.assertIn("launch.effort", out["fields"])
self.assertEqual(self.reg_bytes(), before)
self.assertFalse(os.path.exists(forks.lock_path(self.state)))
# identical values stay fine with a base
code, out, _ = self.init()
self.assertEqual(code, 0, out)
self.assertFalse(out["changed"])
# --- refusals ---
def assert_refused_no_state(self, *extra, model="claude-opus-5-5[1m]"):
code, out, raw = self.init(*extra, model=model)
self.assertEqual(code, 2, out)
self.assert_one_json_line(raw)
self.assertIn("error", out)
self.assertFalse(os.path.exists(self.state), "a refused init must not write")
return out
def test_bad_model_ids(self):
for m in ("opus", "sonnet", "claude-opus-5-5[200k]", "Claude-Opus-5-5", "claude-opus 5"):
with self.subTest(model=m):
self.assert_refused_no_state(model=m)
def test_plan_mode_refused(self):
out = self.assert_refused_no_state("--permission-mode", "plan")
self.assertEqual(out["error"], "permission mode refused")
def test_unknown_mode_and_effort_refused(self):
self.assert_refused_no_state("--permission-mode", "yolo")
self.assert_refused_no_state("--effort", "turbo")
def test_missing_binary_refused(self):
out = self.assert_refused_no_state("--binary", os.path.join(self.tmp, "nope.exe"))
self.assertEqual(out["error"], "claude binary not found")
def test_agent(self):
self.assert_refused_no_state("--agent", "ghost")
self.assert_refused_no_state("--agent", "../x")
ap = os.path.join(self.cwd, ".claude", "agents", "impl.md")
with open(ap, "w") as f:
f.write("---\nname: impl\n---\nbody\n")
code, out, _ = self.init("--agent", "impl")
self.assertEqual(code, 0, out)
ag = out["config"]["launch"]["agent"]
self.assertEqual(ag["name"], "impl")
self.assertEqual(ag["sha256"], forks._sha256_file(ap))
# --- C8 admission ---
def proj(self):
return os.path.join(self.cwd, ".claude", "settings.json")
def local(self):
return os.path.join(self.cwd, ".claude", "settings.local.json")
def test_admission_no_list_admits(self):
self.assertTrue(forks.model_admission("claude-whatever-9", self.cwd)["admitted"])
def test_admission_exact(self):
self.write_settings(self.user_settings, ["claude-opus-5-5[1m]"])
self.assertTrue(forks.model_admission("claude-opus-5-5[1m]", self.cwd)["admitted"])
# the bare id is not the [1m] entry and `opus` is not listed
self.assertFalse(forks.model_admission("claude-opus-5-5", self.cwd)["admitted"])
def test_admission_strips_1m(self):
self.write_settings(self.proj(), ["claude-opus-5-5"])
adm = forks.model_admission("claude-opus-5-5[1m]", self.cwd)
self.assertTrue(adm["admitted"])
self.assertIn("without [1m]", adm["via"])
def test_admission_family_alias(self):
self.write_settings(self.local(), ["sonnet"])
adm = forks.model_admission("claude-sonnet-5-5", self.cwd)
self.assertTrue(adm["admitted"])
self.assertIn("family alias", adm["via"])
def test_admission_any_list_admits(self):
self.write_settings(self.user_settings, ["claude-opus-5-5"])
self.write_settings(self.local(), ["haiku"])
self.assertTrue(forks.model_admission("claude-haiku-5-5", self.cwd)["admitted"])
def test_admission_unlisted_refused_by_init(self):
self.write_settings(self.user_settings, ["claude-opus-5-5"])
self.write_settings(self.local(), ["opus"])
with open(self.local(), "rb") as f:
local_before = f.read()
out = self.assert_refused_no_state(model="claude-sonnet-5-5")
self.assertEqual(out["error"], "model not admitted by availableModels")
self.assertEqual(out["model"], "claude-sonnet-5-5")
self.assertEqual(sorted(out["files"]), sorted([self.user_settings, self.local()]))
self.assertIn("must add", out["message"])
self.assertIn(self.local(), out["message"])
with open(self.local(), "rb") as f:
self.assertEqual(f.read(), local_before, "settings must never be written")
self.assertFalse(os.path.exists(self.proj()))
def test_admission_admitted_by_init(self):
self.write_settings(self.proj(), ["opus", "sonnet"])
code, out, _ = self.init(model="claude-sonnet-5-5")
self.assertEqual(code, 0, out)
self.assertIn("family alias", out["config"]["model_admission"])
# --------------------------------------------------------------------------------------
class CliTests(Base):
def test_not_implemented(self):
run_log = os.path.join(self.tmp, "r-run.md")
cases = {
("train", "--base", "B1", "--brief", "b.md"): {"block": "1.2"},
("fork", "--base", "B1", "--block", "1.1", "--brief", "b.md"): {"block": "1.2"},
("continue", "--job", "j0001", "--brief", "b.md"): {"block": "1.2"},
("wait", "--all"): {"block": "1.2"},
("list",): {"block": "1.2"},
("expire", "--all"): {"block": "1.2"},
("kill", "--job", "j0001"): {"block": "1.2"},
("_supervise", "--job", "j0001"): {"block": "1.2"},
("rebase",): {"phase": 2},
("usage", "--phase", "1"): {"phase": 2},
("tick",): {"phase": 2},
}
for argv, want in cases.items():
with self.subTest(cmd=argv[0]):
code, out, raw = call([argv[0], "--run", run_log, *argv[1:]])
self.assertEqual(code, 2)
self.assert_one_json_line(raw)
self.assertEqual(out["error"], "not implemented")
for k, v in want.items():
self.assertEqual(out[k], v)
self.assertFalse(os.path.exists(run_log[:-3] + "-forks"))
def test_unknown_command_and_missing_run(self):
for argv in (["bogus"], [], ["list"], ["init", "--run", "x.md"],
["list", "--run", "x.md", "--bogus"]):
with self.subTest(argv=argv):
code, out, raw = call(argv)
self.assertEqual(code, 2)
self.assert_one_json_line(raw)
self.assertEqual(out["error"], "usage")
def test_help_is_json(self):
code, out, raw = call(["--help"])
self.assertEqual(code, 0)
self.assert_one_json_line(raw)
self.assertIn("where", out["commands"])
self.assertNotIn("_supervise", out["commands"])
code, out, _ = call(["init", "--help"])
self.assertEqual(code, 0)
self.assertIn("--model", out["help"])
def test_child_refuses_launching(self):
os.environ[forks.CHILD_MARKER] = "1"
run_log = os.path.join(self.tmp, "r-run.md")
code, out, _ = call(["fork", "--run", run_log, "--base", "B1", "--block", "1", "--brief", "b"])
self.assertEqual(code, 2)
self.assertIn("inside a fork", out["error"])
code, out, _ = call(["list", "--run", run_log])
self.assertEqual(out["error"], "not implemented") # not refused as a launch
stub = make_stub_binary(self.tmp)
self.assertEqual(call(["where", "--binary", stub])[0], 0)
def test_internal_error_keeps_invariant(self):
def boom(args):
raise RuntimeError("kaboom")
with mock.patch.dict(forks.HANDLERS, {"list": boom}):
code, out, raw = call(["list", "--run", os.path.join(self.tmp, "r-run.md")])
self.assertEqual(code, 2)
self.assert_one_json_line(raw)
self.assertEqual(out["error"], "internal error")
def test_where_in_process_missing_binary(self):
code, out, raw = call(["where", "--binary", os.path.join(self.tmp, "nope.exe")])
self.assertEqual(code, 2)
self.assert_one_json_line(raw)
self.assertFalse(out["ok"])
self.assertIn("reason", out)
self.assertIn("error", out)
# --------------------------------------------------------------------------------------
@unittest.skipUnless(shutil.which("uv"), "uv not on PATH")
class SubprocessTests(Base):
def run_uv(self, *argv):
return subprocess.run(["uv", "run", FORKS_PY, *argv], cwd=self.tmp, env=child_env(),
capture_output=True, timeout=180)
def test_where_via_uv_stub(self):
stub = make_stub_binary(self.tmp)
r = self.run_uv("where", "--binary", stub)
self.assertEqual(r.returncode, 0, r.stderr)
out = self.assert_one_json_line(r.stdout.decode("utf-8"))
self.assertTrue(out["ok"])
self.assertEqual(out["spawn"], "cim-hidden" if IS_WINDOWS else "setsid")
self.assertEqual(out["binary"]["version"], STUB_VERSION)
self.assertEqual(out["binary"]["how"], "--binary")
self.assertEqual(os.path.normcase(out["script"]), os.path.normcase(os.path.abspath(FORKS_PY)))
for k in ("python", "uv", "git", "scrub"):
self.assertIn(k, out)
for k in ("drop", "keep", "pinned", "unknown"):
self.assertIn(k, out["scrub"])
self.assertIn("base_executable", out["python"])
self.assertIsNotNone(out["git"]["path"])
def test_where_via_uv_host_binary(self):
if not (os.environ.get("CLAUDE_CODE_EXECPATH") or shutil.which("claude")):
self.skipTest("no claude binary on this host")
r = self.run_uv("where")
self.assertEqual(r.returncode, 0, r.stderr)
self.assertTrue(self.assert_one_json_line(r.stdout.decode("utf-8"))["ok"])
def test_error_case_stdout_invariant(self):
run_log = os.path.join(self.tmp, "x-run.md")
r = self.run_uv("init", "--run", run_log, "--model", "opus", "--cwd", self.tmp)
self.assertEqual(r.returncode, 2, r.stderr)
out = self.assert_one_json_line(r.stdout.decode("utf-8"))
self.assertIn("error", out)
self.assertFalse(os.path.exists(os.path.join(self.tmp, "x-run-forks")))
def test_unknown_command_exit_2(self):
r = self.run_uv("frobnicate")
self.assertEqual(r.returncode, 2, r.stderr)
self.assertEqual(self.assert_one_json_line(r.stdout.decode("utf-8"))["error"], "usage")
if __name__ == "__main__":
unittest.main(verbosity=2)