Files
wanderbooks/crates/ledger-cli/tests/format_upgrade.rs
T
swaitsandClaude Fable 5.1 4236f03744 feat(store): a record's source can be corrected without touching its words (P5)
Accounting reason: a convention, a decision or an open item carries who
decided it, when and on what authority. When that is recorded wrongly the
honest fix is to say so on the record, not to restate the policy: a policy
revision bumps the convention's revision and reads as a change of the rule,
and a new decision supersedes the old one. A source correction changes only
the authority and says why, so the audit trail shows the words were never
altered.

New event types convention.source_revised, decision.source_revised and
open_item.source_revised {id, source, reason} under the journal feature
source_revisions: an older version would refuse the types, or show the old
source as the record's authority, so it stops at the declaration instead
(rules.md B-27) and books that have not had the owner's upgrade refuse the
write with format_upgrade_pending, journaling nothing. Replay sets the
source and nothing else (the text, the revision and the journal line stay);
the projection updates the rows' existing source columns, so no schema
changed. A correction must be one: other words, the same source, no reason
or an unknown record is refused.

books.set_convention takes reason (the text exactly as it stands),
books.record_decision and books.raise_item take revises with reason. Without
reason the old refusal stands and now says how to correct only the source.

8.0.6: the hand-written lines of the three shapes in
books_written_under_older_rules_still_open; fixture old-books/p5_before,
written by b97234ac (a revised convention, two decisions, two open items, a
draft) through old-books-writer/src/bin/p5_before.rs, opens to that
version's figures, so no figure moved; books_p2_served_cut_over_whole
refuses the correction before consent and takes it after; the fuzzer and the
viewer's journal know the types. The live books refuse the new write until
the owner gives the go-ahead; merging does not need it.

Tests: a_source_only_revision_is_journaled,
a_source_revision_must_change_only_the_source,
source_revisions_wait_for_the_upgrade, source_revisions_is_its_own_feature.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HS8WZziDnyxunC23MUxrLp
2026-10-29 15:48:27 -06:00

966 lines
36 KiB
Rust

//! The format upgrade from end to end (plan/served.md 3.9, D-39), through
//! the one executable: books an older wanderbooks wrote, in a data root,
//! opened by the books server of this version. Oracle: the plan's
//! `format_upgrade_waits_for_consent` (they open on the old format until
//! the owner consents; a backup with the keys is made first; no MCP tool
//! can consent; declining leaves them openable) and D-39 (asked at every
//! open until given; books.start puts it first).
//!
//! ```text
//! INVARIANTS:
//! 1. Waiting books open and are served; books.start says so first, and
//! a change that needs the new format is refused, journaling nothing;
//! a change that needs nothing new is made.
//! 2. No tool consents: none is offered, and none moves the format.
//! 3. The owner's commands ask at every open, at a terminal; elsewhere
//! they say so. Declining, or a wrong passphrase, changes nothing.
//! 4. With the passphrase: a backup of the books as they were, keys in
//! it, then the whole format in one line; the agent's session goes on
//! and the change is made; the books verify, and reopen upgraded.
//! ```
#![cfg(target_os = "linux")]
mod common;
use serde_json::{Value, json};
use std::io::{BufRead, BufReader, Write};
use std::path::{Path, PathBuf};
use std::process::{Child, Command, Stdio};
use std::sync::mpsc;
use std::time::{Duration, Instant};
/// Short timings for tests.
const KNOBS: &str =
"close_after=2500,backoff=50,exe_poll=100,init_wait=5000,queue_wait=30000,backup_quiet=300";
/// The owner passphrase the tests set.
const PASS: &str = "correct horse battery";
/// A home with a data root (`setup`) and its owner passphrase.
struct Home {
dir: tempfile::TempDir,
}
impl Home {
fn new(tag: &str) -> Self {
let dir = tempfile::Builder::new()
.prefix(&format!("wb-upgrade-{tag}-"))
.tempdir()
.unwrap();
let out = Command::new(env!("CARGO_BIN_EXE_wanderbooks"))
.args(["setup", "--home"])
.arg(dir.path())
.env_remove("XDG_DATA_HOME")
.stdin(Stdio::null())
.output()
.unwrap();
assert!(out.status.success(), "{out:?}");
let home = Self { dir };
ledger_store::passphrase::set(&home.root().join("auth"), PASS, None).unwrap();
home
}
fn root(&self) -> PathBuf {
self.dir.path().join(".local/share/wanderbooks")
}
fn book_dir(&self, id: &str) -> PathBuf {
self.root().join("books").join(id)
}
fn run_dir(&self) -> PathBuf {
self.root().join("run")
}
/// The words of `mode` with the root and the test knobs.
fn words(&self, mode: &str) -> Vec<String> {
vec![
mode.to_string(),
"--root".into(),
self.root().display().to_string(),
"--test-knobs".into(),
KNOBS.into(),
]
}
/// The program, with the test home's environment alone.
fn cmd(&self, mode: &str) -> Command {
let mut c = Command::new(env!("CARGO_BIN_EXE_wanderbooks"));
c.args(self.words(mode))
.env_clear()
.env("PATH", "/usr/bin:/bin")
.env("HOME", self.dir.path());
c
}
/// `books ARGS`, not at a terminal.
fn books(&self, args: &[&str]) -> std::process::Output {
let mut c = self.cmd("books");
c.args(args).stdin(Stdio::null());
c.output().unwrap()
}
/// One line to the lease socket, the answer.
fn lease_line(&self, line: &str) -> String {
use std::io::Read;
let short = ledger_store::root::SocketPath::new(&self.run_dir(), "lease.sock").unwrap();
let mut s = std::os::unix::net::UnixStream::connect(short.path()).unwrap();
s.write_all(line.as_bytes()).unwrap();
s.shutdown(std::net::Shutdown::Write).unwrap();
let mut out = String::new();
s.read_to_string(&mut out).unwrap();
out
}
/// The pids running `mode` for this root.
fn pids(&self, mode: &str) -> Vec<u32> {
let root = self.root().display().to_string();
let mut out = Vec::new();
for entry in std::fs::read_dir("/proc").unwrap().flatten() {
let Ok(pid) = entry.file_name().to_string_lossy().parse::<u32>() else {
continue;
};
let Ok(raw) = std::fs::read(entry.path().join("cmdline")) else {
continue;
};
let args: Vec<String> = raw
.split(|b| *b == 0)
.map(|a| String::from_utf8_lossy(a).into_owned())
.collect();
if args.get(1).map(String::as_str) == Some(mode) && args.contains(&root) {
out.push(pid);
}
}
out
}
/// `words` run at a terminal (a pseudo-terminal, through util-linux
/// `script`), typing `lines` one at a time, each once it has been
/// asked for (a prompt ending ": " or "] "): its exit code and what
/// the terminal showed.
fn at_terminal(&self, words: &[String], lines: &[&str]) -> (i32, String) {
let command = std::iter::once(env!("CARGO_BIN_EXE_wanderbooks").to_string())
.chain(words.iter().cloned())
.collect::<Vec<_>>()
.join(" ");
let mut child = Command::new("script")
.args(["-qefc", &command, "/dev/null"])
.env_clear()
.env("PATH", "/usr/bin:/bin")
.env("HOME", self.dir.path())
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.spawn()
.expect("util-linux script");
let mut stdin = child.stdin.take().unwrap();
let shown = std::sync::Arc::new(std::sync::Mutex::new(Vec::<u8>::new()));
let mut stdout = child.stdout.take().unwrap();
let reader = {
let shown = shown.clone();
std::thread::spawn(move || {
use std::io::Read;
let mut buf = [0u8; 4096];
while let Ok(n) = stdout.read(&mut buf) {
if n == 0 {
break;
}
shown.lock().unwrap().extend_from_slice(&buf[..n]);
}
})
};
let prompts = |shown: &[u8]| {
String::from_utf8_lossy(shown)
.split(['\r', '\n'])
.filter(|l| l.ends_with(": ") || l.ends_with("] "))
.count()
};
for (i, line) in lines.iter().enumerate() {
let deadline = Instant::now() + Duration::from_secs(120);
while prompts(&shown.lock().unwrap()) <= i {
if child.try_wait().unwrap().is_some() || Instant::now() > deadline {
break;
}
std::thread::sleep(Duration::from_millis(20));
}
// It turns its echo off just after asking for a passphrase.
std::thread::sleep(Duration::from_millis(150));
let _ = stdin.write_all(format!("{line}\n").as_bytes());
}
let deadline = Instant::now() + Duration::from_secs(300);
while child.try_wait().unwrap().is_none() {
assert!(Instant::now() < deadline, "it never ended");
std::thread::sleep(Duration::from_millis(50));
}
drop(stdin);
let out = child.wait_with_output().unwrap();
let _ = reader.join();
let text = format!(
"{}{}",
String::from_utf8_lossy(&shown.lock().unwrap()),
String::from_utf8_lossy(&out.stderr)
);
(out.status.code().unwrap_or(-1), text)
}
}
impl Drop for Home {
fn drop(&mut self) {
let _ = self
.cmd("close")
.stdout(Stdio::null())
.stderr(Stdio::null())
.status();
let deadline = Instant::now() + Duration::from_secs(10);
loop {
let mut found = false;
for mode in ["serve", "mcp", "host", "server"] {
for pid in self.pids(mode) {
found = true;
// SAFETY: a process of this test's own root.
unsafe { libc::kill(pid as i32, libc::SIGKILL) };
}
}
if !found || Instant::now() > deadline {
break;
}
std::thread::sleep(Duration::from_millis(100));
}
}
}
/// A child whose stdout lines arrive on a channel.
struct Running {
child: Child,
lines: mpsc::Receiver<String>,
}
impl Running {
fn start(mut c: Command) -> Self {
let mut child = c
.stdin(Stdio::piped())
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.spawn()
.unwrap();
let (tx, lines) = mpsc::channel();
let out = child.stdout.take().unwrap();
std::thread::spawn(move || {
for line in BufReader::new(out).lines() {
let Ok(line) = line else { break };
if tx.send(line).is_err() {
break;
}
}
});
Self { child, lines }
}
fn expect(&self, text: &str, secs: u64) -> String {
let deadline = Instant::now() + Duration::from_secs(secs);
loop {
let left = deadline.saturating_duration_since(Instant::now());
match self.lines.recv_timeout(left) {
Ok(line) if line.contains(text) => return line,
Ok(_) => {}
Err(_) => panic!("no line with {text:?} in {secs} s"),
}
}
}
}
impl Drop for Running {
fn drop(&mut self) {
let _ = self.child.kill();
let _ = self.child.wait();
}
}
/// `serve`, holding the books open until dropped.
fn serve(home: &Home) -> Running {
let held = Running::start(home.cmd("serve"));
held.expect("The books are open", 60);
held
}
/// An agent: the bridge over stdio, spoken to as an MCP client.
struct Agent {
run: Running,
next: u64,
}
impl Agent {
fn start(home: &Home, book: &str) -> Self {
let mut c = home.cmd("mcp");
c.args(["--book", book]);
let mut a = Self {
run: Running::start(c),
next: 1,
};
a.request(
"initialize",
json!({"protocolVersion": "2025-06-18", "capabilities": {},
"clientInfo": {"name": "test", "version": "0"}}),
30,
);
a.send(json!({"jsonrpc": "2.0", "method": "notifications/initialized"}));
a
}
fn send(&mut self, message: Value) {
let stdin = self.run.child.stdin.as_mut().unwrap();
writeln!(stdin, "{message}").unwrap();
stdin.flush().unwrap();
}
fn request(&mut self, method: &str, params: Value, secs: u64) -> Value {
let id = self.next;
self.next += 1;
self.send(json!({"jsonrpc": "2.0", "id": id, "method": method, "params": params}));
let deadline = Instant::now() + Duration::from_secs(secs);
loop {
let left = deadline.saturating_duration_since(Instant::now());
let line = self
.run
.lines
.recv_timeout(left)
.unwrap_or_else(|_| panic!("no answer to {method} in {secs} s"));
let v: Value = serde_json::from_str(&line).unwrap();
if v.get("id") == Some(&json!(id)) {
return v;
}
}
}
/// Call a tool: Ok(its structured result) or Err(the error's text).
fn call(&mut self, tool: &str, args: Value) -> Result<Value, String> {
let r = common::tools_call(|m, p| self.request(m, p, 60), tool, args.clone());
if let Some(e) = r.get("error") {
return Err(e["message"].as_str().unwrap_or_default().to_string());
}
let result = &r["result"];
if result["isError"] == true {
return Err(result["content"][0]["text"]
.as_str()
.unwrap_or_default()
.to_string());
}
Ok(result["structuredContent"].clone())
}
}
/// Books `id` in the root as an older version wrote them (journal format
/// 1), with a chart, an entry and their vault key, before any server ran.
fn old_books(home: &Home, id: &str) -> PathBuf {
use ledger_core::{AccountType, Currency, Money, Side};
use std::os::unix::fs::PermissionsExt;
let dir = home.book_dir(id);
std::fs::create_dir(&dir).unwrap();
std::fs::set_permissions(&dir, std::fs::Permissions::from_mode(0o700)).unwrap();
let mut s = ledger_store::Store::create_in_format(
&dir,
Currency::USD,
&ledger_store::JournalFormat::default(),
)
.unwrap();
let cash = s
.add_account("1000", "Cash", AccountType::Asset, None, false)
.unwrap();
let cap = s
.add_account("3000", "Capital", AccountType::Equity, None, false)
.unwrap();
let e = s
.create_entry(chrono_date(2026, 3, 1), "Capital in")
.unwrap();
let m = Money::new(500.into(), Currency::USD);
s.add_line(e, cash, Side::Debit, m).unwrap();
s.add_line(e, cap, Side::Credit, m).unwrap();
s.post_entry(e).unwrap();
drop(s);
let keys = dir.join("keys");
std::fs::create_dir(&keys).unwrap();
std::fs::set_permissions(&keys, std::fs::Permissions::from_mode(0o700)).unwrap();
std::fs::write(keys.join("legacy.key"), "ab".repeat(32)).unwrap();
std::fs::set_permissions(
keys.join("legacy.key"),
std::fs::Permissions::from_mode(0o600),
)
.unwrap();
dir
}
fn chrono_date(y: i32, m: u32, d: u32) -> chrono::NaiveDate {
chrono::NaiveDate::from_ymd_opt(y, m, d).unwrap()
}
fn journal(dir: &Path) -> Vec<u8> {
std::fs::read(dir.join("journal.jsonl")).unwrap()
}
fn format_lines(dir: &Path) -> usize {
String::from_utf8(journal(dir))
.unwrap()
.lines()
.filter(|l| l.contains(r#""type":"journal.format_set""#))
.count()
}
/// git, on the books' own backup repository: what it said.
fn archive_git(dir: &Path, args: &[&str]) -> String {
let out = Command::new("git")
.arg(format!("--git-dir={}", dir.join("archive.git").display()))
.args(args)
.output()
.unwrap();
assert!(out.status.success(), "{out:?}");
String::from_utf8(out.stdout).unwrap()
}
fn a_setting() -> Value {
json!({"changes": [{"key": "company.name", "value": "Fernhill Labs LLC"}],
"decided_by": "Avery Quill"})
}
/// plan/served.md 3.9's `format_upgrade_waits_for_consent`, and D-39.
#[test]
fn format_upgrade_waits_for_consent() {
let home = Home::new("consent");
let dir = old_books(&home, "acme");
let before = journal(&dir);
// INVARIANT 3 (not at a terminal): a command that opens the books
// says they wait, and how to agree; it asks nothing.
let out = home
.cmd("token")
.args(["create", "--book", "acme"])
.stdin(Stdio::null())
.output()
.unwrap();
assert!(out.status.success(), "{out:?}");
let err = String::from_utf8_lossy(&out.stderr);
assert!(
err.contains("wait for a format upgrade") && err.contains("wanderbooks books upgrade acme"),
"{err}"
);
let _held = serve(&home);
let out = home.books(&["list"]);
assert!(
String::from_utf8_lossy(&out.stdout).contains("acme open, waiting for a format upgrade"),
"{out:?}"
);
let doctor = home.cmd("doctor").stdin(Stdio::null()).output().unwrap();
assert!(
String::from_utf8_lossy(&doctor.stdout).contains("waiting for a format upgrade"),
"{doctor:?}"
);
// And which database file the books use (one for each schema).
assert!(
String::from_utf8_lossy(&doctor.stdout)
.contains(&format!("database: {}", ledger_store::db_file())),
"{doctor:?}"
);
// INVARIANTS 1 and 2: the agent's view.
let mut a = Agent::start(&home, "acme");
let start = a.call("books.start", json!({})).unwrap();
assert_eq!(start["format_upgrade"]["guard"], "format_upgrade_pending");
assert_eq!(start["format_upgrade"]["format"], 1);
assert_eq!(start["next_steps"][0]["tool"], "books.handbook");
assert_eq!(start["next_steps"][0]["args"]["section"], "format-upgrade");
let why = start["next_steps"][0]["why"].as_str().unwrap();
assert!(why.starts_with("Tell the human first"), "{why}");
let section = a
.call("books.handbook", json!({"section": "format-upgrade"}))
.unwrap();
assert!(
section["section"]["text"]
.as_str()
.unwrap()
.contains("Only the owner can agree"),
"{section}"
);
let refused = a.call("books.set_setting", a_setting()).unwrap_err();
assert!(refused.contains("format_upgrade_pending"), "{refused}");
assert!(refused.contains("no tool can"), "{refused}");
assert_eq!(journal(&dir), before, "a refusal journals nothing");
// What needs nothing new is made.
a.call(
"books.add_account",
json!({"code": "6000", "name": "Supplies", "account_type": "expense"}),
)
.unwrap();
let tools = a.request("tools/list", json!({}), 30);
let names: Vec<&str> = tools["result"]["tools"]
.as_array()
.unwrap()
.iter()
.map(|t| t["name"].as_str().unwrap())
.collect();
assert!(names.len() > 50, "{names:?}");
for name in &names {
assert!(
!name.contains("upgrade") && !name.contains("consent"),
"a tool that could consent: {name}"
);
}
assert_eq!(format_lines(&dir), 0, "no tool moved the format");
// INVARIANT 3: the go-ahead. Only at a terminal; a wrong passphrase,
// or none, changes nothing.
let out = home.books(&["upgrade", "acme"]);
assert_eq!(out.status.code(), Some(1), "{out:?}");
assert!(
String::from_utf8_lossy(&out.stderr).contains("typed at a terminal"),
"{out:?}"
);
let answer = home.lease_line(&format!(
"{}\n",
json!({"proto": 1, "intent": {"consent_format_upgrade":
{"book": "acme", "passphrase": "not the passphrase at all"}}})
));
assert!(answer.contains("isn't the owner passphrase"), "{answer}");
let mut words = home.words("books");
words.extend(["upgrade".into(), "acme".into()]);
let (code, shown) = home.at_terminal(&words, &[""]);
assert_eq!(code, 0, "{shown}");
assert!(shown.contains("Not upgraded"), "{shown}");
let wrong = "not the passphrase at all";
let (code, shown) = home.at_terminal(&words, &[wrong]);
assert_eq!(code, 1, "{shown}");
assert!(
shown.contains("error: not upgraded: that isn't the owner passphrase"),
"{shown}"
);
assert!(!shown.contains(wrong), "the passphrase was shown: {shown}");
assert!(
!dir.join("archive.git").exists(),
"no backup before consent"
);
assert_eq!(format_lines(&dir), 0);
// Asked at every open until given (D-39): declined twice, asked twice.
let mut list = home.words("books");
list.push("list".into());
for _ in 0..2 {
let (code, shown) = home.at_terminal(&list, &["n"]);
assert_eq!(code, 0, "{shown}");
assert!(shown.contains("Upgrade them now?"), "{shown}");
assert!(shown.contains("Not now"), "{shown}");
assert!(shown.contains("acme open, waiting"), "{shown}");
}
// Never asked where the question can't be seen: at a terminal, but
// its output going to a file (or a pipe), the command only notes it on
// the terminal, asks nothing, and its output is its own.
let listed = home.dir.path().join("listed.txt");
let mut to_file = list.clone();
to_file.extend([">".to_string(), listed.display().to_string()]);
let (code, shown) = home.at_terminal(&to_file, &["n"]);
assert_eq!(code, 0, "{shown}");
assert!(shown.contains("note: the books \"acme\" wait"), "{shown}");
assert!(!shown.contains("Upgrade them now?"), "{shown}");
assert_eq!(
std::fs::read_to_string(&listed).unwrap(),
"acme open, waiting for a format upgrade (`wanderbooks books upgrade acme`)\n"
);
assert_eq!(format_lines(&dir), 0);
let before = journal(&dir);
// INVARIANT 4: given, with the passphrase.
let (code, shown) = home.at_terminal(&words, &[PASS]);
assert_eq!(code, 0, "{shown}");
assert!(!shown.contains(PASS), "the passphrase was shown: {shown}");
assert!(shown.contains("Backed up first"), "{shown}");
assert!(
shown.contains("Upgraded the books \"acme\" to this version's journal format"),
"{shown}"
);
let after = journal(&dir);
assert!(after.starts_with(&before));
assert_eq!(format_lines(&dir), 1, "the format moved once");
let backup = archive_git(&dir, &["rev-parse", "HEAD"]);
assert_eq!(
archive_git(&dir, &["show", &format!("{}:journal.jsonl", backup.trim())]).as_bytes(),
before.as_slice(),
"the backup holds the books as they were"
);
assert_eq!(
archive_git(
&dir,
&["show", &format!("{}:keys/legacy.key", backup.trim())]
),
"ab".repeat(32),
"and their key"
);
// The agent's session goes on: nothing waits, and the change is made.
let start = a.call("books.start", json!({})).unwrap();
assert!(start.get("format_upgrade").is_none(), "{start}");
assert_ne!(start["next_steps"][0]["args"]["section"], "format-upgrade");
a.call("books.set_setting", a_setting()).unwrap();
let verified = a.call("books.verify", json!({})).unwrap();
assert_eq!(verified["database"], ledger_store::db_file(), "{verified}");
assert!(verified.get("other_databases").is_none(), "{verified}");
let out = home.books(&["list"]);
assert!(
String::from_utf8_lossy(&out.stdout).contains("acme open\n"),
"{out:?}"
);
assert!(!String::from_utf8_lossy(&out.stderr).contains("format upgrade"));
// Asked again: nothing to do.
let (code, shown) = home.at_terminal(&words, &[]);
assert_eq!(code, 0, "{shown}");
assert!(
shown.contains("already in this version's journal format"),
"{shown}"
);
assert_eq!(format_lines(&dir), 1);
}
/// plan P4b S4.4 (R-A step 4, 8.0.6 item 3): on books that haven't
/// declared `documents_v2`, an invoice carrying a new field (terms) is
/// refused with the upgrade remedy and journals nothing, while one
/// carrying none posts as before; after the owner's go-ahead the same call
/// is made, and takes the first number.
#[test]
fn documents_v2_refused_until_consent() {
let home = Home::new("documents-v2");
let dir = old_books(&home, "acme");
let _held = serve(&home);
let out = home
.cmd("token")
.args(["create", "--book", "acme"])
.stdin(Stdio::null())
.output()
.unwrap();
assert!(out.status.success(), "{out:?}");
let mut a = Agent::start(&home, "acme");
let customer = a
.call("books.add_customer", json!({"name": "Harbor Coffee"}))
.unwrap()["id"]
.clone();
let line = json!([{"description": "Design", "amount": "500.00"}]);
let with_terms = json!({"customer": customer.to_string(), "date": "2026-02-10",
"terms": "Net 30", "lines": line, "confirmed": true});
let before = journal(&dir);
let refused = a
.call("books.create_invoice", with_terms.clone())
.unwrap_err();
assert!(refused.starts_with("format_upgrade_pending"), "{refused}");
assert!(refused.contains("documents_v2"), "{refused}");
assert_eq!(journal(&dir), before, "a refusal journals nothing");
// A document carrying none of the new fields posts as before, and
// files its copy; it takes no number (an older version reads it).
let plain = a
.call(
"books.create_invoice",
json!({"customer": customer.to_string(), "date": "2026-02-10", "due_date": "2026-03-12",
"lines": line, "confirmed": true}),
)
.unwrap();
assert!(plain.get("number").is_none(), "{plain}");
assert_eq!(plain["total"], "500.00");
// The go-ahead.
let mut words = home.words("books");
words.extend(["upgrade".into(), "acme".into()]);
let (code, shown) = home.at_terminal(&words, &[PASS]);
assert_eq!(code, 0, "{shown}");
assert_eq!(format_lines(&dir), 1, "the format moved once");
let made = a.call("books.create_invoice", with_terms).unwrap();
assert_eq!(made["number"], "INV-0001", "{made}");
assert_eq!(made["terms"], "Net 30", "{made}");
assert_eq!(made["due_date"], "2026-03-12", "{made}");
a.call("books.verify", json!({})).unwrap();
}
/// Copy the tree `from` into `to`, private as the server keeps a book
/// (folders 0700, files 0600).
fn copy_private(from: &Path, to: &Path) {
use std::os::unix::fs::PermissionsExt;
std::fs::create_dir_all(to).unwrap();
std::fs::set_permissions(to, std::fs::Permissions::from_mode(0o700)).unwrap();
for entry in std::fs::read_dir(from).unwrap().flatten() {
let (src, dst) = (entry.path(), to.join(entry.file_name()));
if entry.file_type().unwrap().is_dir() {
copy_private(&src, &dst);
} else {
std::fs::copy(&src, &dst).unwrap();
std::fs::set_permissions(&dst, std::fs::Permissions::from_mode(0o600)).unwrap();
}
}
}
/// The cutover of books P2 served, from end to end (the P3 data-safety
/// review, 2026-10-21). `tests/fixtures/p2-served` is a book the P2
/// executable itself wrote (9c99a0cf, the revision before P3; fictional
/// throughout): 470 journal lines through its MCP tools (settings, which
/// declared format 2 with no features, a chart, members, vendors, two TINs
/// in its vault with its key, 64 entries with receipts, an asset and ten
/// months of its depreciation, a schedule, a closed quarter), and P2's
/// projection `wanderbooks.db` at schema 12 as P2 left it.
///
/// ```text
/// INVARIANTS:
/// 1. Before consent: the books open and are served, waiting; P2's
/// database is never written; what P2 can read is written, and every
/// write P2 would refuse or misread is refused, journaling nothing
/// (a setting key, a tax category, a depreciation catch-up, a members
/// close counted from the count's start, an invoice's or bill's line
/// naming its project).
/// 2. The consent backup holds the books exactly as they were, keys and
/// vault too; the upgrade is one line after P2's, byte for byte.
/// 3. After it: the same figures, and every refused write is made; the
/// books verify; P2's database is still byte for byte.
/// ```
#[test]
fn books_p2_served_cut_over_whole() {
let home = Home::new("p2-served");
let dir = home.book_dir("acme");
let fixture = Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/p2-served");
copy_private(&fixture, &dir);
let p2_db = std::fs::read(dir.join(ledger_store::LEGACY_DB_FILE)).unwrap();
let p2_journal = journal(&dir);
let _held = serve(&home);
let out = home
.cmd("token")
.args(["create", "--book", "acme"])
.stdin(Stdio::null())
.output()
.unwrap();
assert!(out.status.success(), "{out:?}");
let mut a = Agent::start(&home, "acme");
let start = a.call("books.start", json!({})).unwrap();
assert_eq!(start["format_upgrade"]["format"], 2, "{start}");
let verified = a.call("books.verify", json!({})).unwrap();
assert_eq!(verified["status"], "ok", "{verified}");
assert_eq!(verified["events"], 470);
assert_eq!(verified["database"], ledger_store::db_file());
assert_eq!(verified["other_databases"], json!(["wanderbooks.db"]));
let figures = |a: &mut Agent| {
[
a.call("books.trial_balance", json!({"as_of": "2025-12-31"})),
a.call(
"books.profit_and_loss",
json!({"start": "2025-01-01", "end": "2025-12-31"}),
),
a.call("books.balance_sheet", json!({"as_of": "2025-12-31"})),
]
.map(Result::unwrap)
};
let before = figures(&mut a);
// INVARIANT 1: what P2 reads is written; the rest waits.
a.call(
"books.add_account",
json!({"code": "6600", "name": "Travel", "account_type": "expense"}),
)
.unwrap();
let q2 = a
.call(
"books.create_period",
json!({"name": "2025-Q2", "start": "2025-04-01", "end": "2025-06-30"}),
)
.unwrap()["period_id"]
.clone();
// A project by name alone is a plain class, which P2 reads.
a.call("books.add_project", json!({"name": "Lighthouse"}))
.unwrap();
// An invoice for the send below: a document P2 reads (no new fields),
// so it is written before the go-ahead; its send waits for it.
let invoice = a
.call(
"books.create_invoice",
json!({"party_id": 1, "date": "2026-01-05", "due_date": "2026-02-04",
"lines": [{"description": "Design", "amount": "400.00"}], "confirmed": true}),
)
.unwrap()["id"]
.clone();
// A receipt not yet on an entry (P2 reads the unlink; entry 7's bank
// fee is under the receipt policy's threshold, so taking its last
// receipt is allowed), and a legacy-shape invoice (no new field, so no
// feature): the evidence and the document P4b S7's write-off needs
// after the go-ahead.
a.call(
"books.unlink_receipt",
json!({"attachment_id": 7, "reason": "filed against the wrong entry"}),
)
.unwrap();
let customer = a
.call("books.add_customer", json!({"name": "Ridgeway Co"}))
.unwrap()["id"]
.clone();
let unpaid = a
.call(
"books.create_invoice",
json!({"party_id": customer, "date": "2026-01-10", "due_date": "2026-02-09",
"lines": [{"description": "Survey", "amount": "300.00"}], "confirmed": true}),
)
.unwrap()["id"]
.clone();
// A draft P2 reads (the old shape): its state and its discard are
// drafts_v2's, and wait.
let waiting_draft = a
.call(
"books.draft_entry",
json!({"date": "2026-02-12", "description": "Waiting for a receipt",
"no_party_reason": "test"}),
)
.unwrap()["entry_id"]
.clone();
for (account, side) in [("6600", "debit"), ("1000", "credit")] {
a.call(
"books.add_line",
json!({"entry_id": waiting_draft, "account": account, "side": side,
"amount": "10.00"}),
)
.unwrap();
}
// An open item P2 reads: the correction of its source is
// source_revisions' (P5), and waits.
let item = a
.call(
"books.raise_item",
json!({"title": "Ask the CPA about the vehicle", "decided_by": "Avery Quill"}),
)
.unwrap()["id"]
.clone();
let waiting = journal(&dir);
let refused: Vec<(&str, Value)> = vec![
// A source correction (source_revisions, P5): an older version
// refuses the type.
(
"books.raise_item",
json!({"revises": item, "reason": "it was the CPA who raised it",
"decided_by": "Pat Smith"}),
),
// A draft's state and its discard (drafts_v2, P4): an older
// version refuses the types.
(
"books.set_draft_state",
json!({"entry_id": waiting_draft, "state": "awaiting_evidence",
"note": "the travel receipt"}),
),
(
"books.discard_draft",
json!({"entry_id": waiting_draft, "reason": "entered twice",
"confirmed": true}),
),
// An invoice carrying documents_v2's fields (terms: P4b S4.4) and
// its line naming its project (document_line_projects, rules.md
// B-37 item 8).
(
"books.create_invoice",
json!({"customer": "1", "date": "2026-02-10", "terms": "Net 30",
"lines": [{"description": "Design", "amount": "500.00", "class": "Lighthouse"}],
"confirmed": true}),
),
// A bill carrying documents_v2's fields (the vendor's number, the
// line's account, its invoice: A-10, A-13) and its line's project.
(
"books.create_bill",
json!({"vendor": "1", "date": "2026-02-11", "due_date": "2026-03-13",
"vendor_ref": "L-77",
"lines": [{"description": "Drafting", "amount": "120.00",
"account": "6600", "class": "Lighthouse"}],
"existing_attachment_id": 1, "confirmed": true}),
),
(
"books.set_setting",
json!({"decided_by": "Avery Quill",
"changes": [{"key": "books.schedule_convention", "value": "monthly_even"}]}),
),
// An invoicing setting (documents_v2, P4b S4.2): an older version
// refuses the key.
(
"books.set_setting",
json!({"decided_by": "Avery Quill",
"changes": [{"key": "invoicing.default_terms", "value": "Net 30"}]}),
),
// A recorded send (invoice.sent, documents_v2, P4b S5): an older
// version refuses the type.
(
"books.mark_sent",
json!({"invoice": invoice.to_string(), "on": "2026-01-06",
"by": "Avery Quill", "recipients": ["billing@fernhill.example"]}),
),
(
"books.add_account",
json!({"code": "4900", "name": "Gain on sale", "account_type": "revenue",
"tax_category": "form_4797_gain_loss"}),
),
// January and February 2026 not run: March's run would carry them.
(
"books.run_depreciation",
json!({"period": "2026-03", "asset_id": 1}),
),
(
"books.close_period",
json!({"period_id": q2, "confirmed": true}),
),
// A bad-debt write-off (documents_v2's new event, P4b S7): its
// evidence filed and linked in the same call.
(
"books.write_off_invoice",
json!({"invoice": unpaid, "date": "2026-02-20",
"reason": "collection exhausted",
"existing_attachment_id": 7, "confirmed": true}),
),
// A file's annotation (attachment_text, P6): an older version
// doesn't know the event.
(
"books.annotate_attachment",
json!({"attachment_id": 1, "fields": {"payee": "Harbor Design LLC",
"amount": "12.34", "date": "2026-02-01"}}),
),
];
for (tool, args) in &refused {
let e = a.call(tool, args.clone()).unwrap_err();
assert!(e.starts_with("format_upgrade_pending"), "{tool}: {e}");
}
assert_eq!(journal(&dir), waiting, "a refusal journals nothing");
assert!(journal(&dir).starts_with(&p2_journal));
assert_eq!(
std::fs::read(dir.join(ledger_store::LEGACY_DB_FILE)).unwrap(),
p2_db,
"P2's database is never written"
);
// INVARIANT 2: the go-ahead.
let mut words = home.words("books");
words.extend(["upgrade".into(), "acme".into()]);
let (code, shown) = home.at_terminal(&words, &[PASS]);
assert_eq!(code, 0, "{shown}");
let after = journal(&dir);
assert!(after.starts_with(&waiting));
assert_eq!(
format_lines(&dir),
2,
"P2's declaration, then the upgrade's"
);
let backup = archive_git(&dir, &["rev-parse", "HEAD"]);
assert_eq!(
archive_git(&dir, &["show", &format!("{}:journal.jsonl", backup.trim())]).as_bytes(),
waiting.as_slice(),
"the backup holds the books as they were"
);
for kept in ["keys/legacy.key", "vault/tin-1.bin", "vault/tin-3.bin"] {
let out = Command::new("git")
.arg(format!("--git-dir={}", dir.join("archive.git").display()))
.args(["show", &format!("{}:{kept}", backup.trim())])
.output()
.unwrap();
assert_eq!(out.stdout, std::fs::read(dir.join(kept)).unwrap(), "{kept}");
}
// INVARIANT 3.
assert_eq!(figures(&mut a), before, "the upgrade moves no figure");
for (tool, args) in refused {
a.call(tool, args.clone())
.unwrap_or_else(|e| panic!("{tool} after the upgrade: {e}"));
}
let verified = a.call("books.verify", json!({})).unwrap();
assert_eq!(verified["status"], "ok", "{verified}");
assert_eq!(
std::fs::read(dir.join(ledger_store::LEGACY_DB_FILE)).unwrap(),
p2_db,
"and never after"
);
}