swaitsandClaude Opus 5.5
ee7e205f5c
check / check (push) Waiting to run
- core: asset tags (generated PREFIX-0001 or the human's own; unique ignoring case; never reused by another asset) and serial numbers (rules.md B-24); a journaled link from an asset to the entry that acquired it (posted, unreversed, debiting the cost account); fixed_asset_register(as_of), reconciled to the GL (unposted depreciation, unregistered cost) - store: asset.tagged, asset.serial_set, asset.acquisition_linked journaled, replayed, projected (schema v9); differs_from now also compares control roles and tag history - config: [books] asset_tag_prefix, default the company's initials without legal-form words - import: Avery 5160/8160 label sheets with QR codes (geometry vendored from Avery, docs/spec/sources/avery-5160.md); the register as XLSX and PDF - mcp: register_asset tags (and links) automatically; books.label_asset, books.asset_labels; asset tools take a tag; books.show asset / assets page / register report; export fixed_asset_register (json, csv, xlsx, pdf) and in the CPA package - viewer: Assets page (register, reconciliation), asset page (identity, schedule posted vs not, entries, documents), Fixed asset register report, global search by tag/serial/description, journal text, needs-attention items - fix: verify compared snapshot amounts as strings; a zero total summed in hash-map order could print "0" or "0.00", so agreeing books failed verify at random. Now by value (regression test) - tests: spec-blind suites for tags, register, prefix, store, MCP; label and register PDF/XLSX tests; viewer tests Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01GWVo7x3UHw5kwCUaWxiejX
2208 lines
76 KiB
Rust
2208 lines
76 KiB
Rust
//! Spec-blind tests for `ledger-mcp`, driven over stdio against the real
|
||
//! binary.
|
||
//!
|
||
//! Expected behavior comes only from the GOAL/SOURCE/INVARIANTS blocks of
|
||
//! `src/server.rs` and `src/policy.rs`, the server's `INSTRUCTIONS`,
|
||
//! `docs/mcp-interface.md`, `docs/spec/sources/{mcp-tools,jsonrpc-2.0,
|
||
//! irs-records}.md`, and the server's own `tools/list` (the declared
|
||
//! interface: names, input and output schemas). Where those are silent the
|
||
//! tests don't assert.
|
||
//!
|
||
//! Every tool call goes through [`Mcp::tool`], which checks, whatever the
|
||
//! test: one response with the request's id, result xor error (JSON-RPC
|
||
//! 2.0 §5); a refused call (isError or a JSON-RPC error) leaves
|
||
//! `journal.jsonl` byte-identical (server invariant 2); a success has
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||
//! `structuredContent` that validates against the tool's `outputSchema`
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||
//! and the same JSON in a text block (invariant 1); and no money key holds
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||
//! a JSON number or a string outside `^-?\d+\.\d{2,}$` (invariant 3).
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||
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||
use proptest::prelude::*;
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||
use serde_json::{Value, json};
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||
use std::collections::{BTreeSet, HashMap};
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||
use std::io::{BufRead, BufReader, Write};
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||
use std::path::{Path, PathBuf};
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||
use std::process::{Child, ChildStdin, Command, Stdio};
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||
use std::sync::atomic::{AtomicU64, Ordering};
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||
use std::sync::mpsc::{Receiver, RecvTimeoutError, channel};
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||
use std::time::Duration;
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||
|
||
/// How long any single response may take before the server counts as hung.
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||
/// Long enough for a server's first answer while a mutation run's jobs
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||
/// contend for the disk (every journal append is synced).
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||
const TIMEOUT: Duration = Duration::from_secs(180);
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||
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||
/// Random cases for the state machine: 64 on every check; `MCP_CASES`
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||
/// sets fewer for a mutation run, more for a deeper one.
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||
fn cases() -> u32 {
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std::env::var("MCP_CASES")
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||
.ok()
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||
.and_then(|v| v.parse().ok())
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||
.unwrap_or(64)
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||
}
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||
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||
/// Keys whose values are money. Derived from the `outputSchema`s: every
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||
/// string property described as an amount or "decimal string", plus the
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/// payout totals (`gross`, `fees`, `adjustments`, `deposit`), the
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||
/// reconciliation `difference`, and the doc's `debits`/`credits`/
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/// `before`/`after`. Arrays and objects under these keys (e.g. `assets`
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/// in `list_assets`) are walked, not checked.
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const MONEY_KEYS: &[&str] = &[
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"accumulated",
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||
"adjustments",
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||
"after",
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||
"amount",
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||
"assets",
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||
"balance",
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||
"balance_after",
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||
"balance_before",
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||
"before",
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||
"book_balance",
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||
"book_value",
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||
"cash_beginning",
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||
"cash_ending",
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"cash_from_financing",
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"cash_from_investing",
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||
"cash_from_operations",
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||
"cleared_balance",
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"cost",
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"credit",
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||
"credits",
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||
"current",
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||
"current_earnings",
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||
"days_30",
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"days_60",
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||
"days_90",
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||
"days_90_plus",
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"debit",
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"debits",
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"deposit",
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"depreciation",
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"difference",
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"equity",
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"expenses",
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"fees",
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"final_depreciation",
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"gain_loss",
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"gross",
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"liabilities",
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||
"movement",
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"net_change_in_cash",
|
||
"net_income",
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||
"paid",
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||
"proceeds",
|
||
"remaining",
|
||
"revenue",
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||
"salvage_value",
|
||
"statement_balance",
|
||
"threshold",
|
||
"total",
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||
"total_credits",
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||
"total_debits",
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"total_gross",
|
||
"total_net",
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||
];
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||
|
||
// ---------------------------------------------------------------- harness
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||
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||
/// What a `tools/call` came back as.
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||
#[derive(Debug, Clone)]
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||
enum Out {
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||
/// Success: the `structuredContent`.
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||
Ok(Value),
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||
/// `isError: true`: the first text block.
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||
ToolErr(String),
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||
/// A JSON-RPC error object.
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||
RpcErr(Value),
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||
}
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||
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||
impl Out {
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||
fn ok(self, what: &str) -> Value {
|
||
match self {
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||
Out::Ok(v) => v,
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||
other => panic!("{what}: expected success, got {other:?}"),
|
||
}
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||
}
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||
fn refused(&self) -> bool {
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||
!matches!(self, Out::Ok(_))
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||
}
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||
fn err_text(&self) -> String {
|
||
match self {
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||
Out::Ok(v) => panic!("expected a refusal, got {v}"),
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||
Out::ToolErr(t) => t.clone(),
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||
Out::RpcErr(e) => e.to_string(),
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||
}
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||
}
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||
}
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||
|
||
struct Mcp {
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||
stdin: ChildStdin,
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||
rx: Receiver<String>,
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||
child: Child,
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||
next_id: u64,
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||
data: PathBuf,
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||
schemas: HashMap<String, Value>,
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||
validators: HashMap<String, jsonschema::Validator>,
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||
/// Tools that returned a success at least once.
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||
exercised: BTreeSet<String>,
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||
/// Invariant 3 (amounts out) violations: `tool: path = value`.
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||
money_violations: Vec<String>,
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||
}
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||
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||
impl Drop for Mcp {
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||
fn drop(&mut self) {
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||
let _ = self.child.kill();
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||
let _ = self.child.wait();
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||
}
|
||
}
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||
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||
static DIR_SEQ: AtomicU64 = AtomicU64::new(0);
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||
|
||
/// A fresh, empty per-test directory under the system temp dir.
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||
fn test_dir(name: &str) -> PathBuf {
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let n = DIR_SEQ.fetch_add(1, Ordering::Relaxed);
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||
let dir =
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std::env::temp_dir().join(format!("ledger-mcp-spec-{}-{name}-{n}", std::process::id()));
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let _ = std::fs::remove_dir_all(&dir);
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||
std::fs::create_dir_all(&dir).unwrap();
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dir
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||
}
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||
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||
/// Write a `wanderbooks.toml` with the given receipt threshold and extra
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/// TOML (appended under `[books]` unless it opens its own table).
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||
fn books_toml(dir: &Path, threshold: &str, extra: &str) -> PathBuf {
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let path = dir.join("wanderbooks.toml");
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std::fs::write(
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&path,
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format!(
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"[company]\nname = \"Spec Co\"\nfiscal_year_start = \"01-01\"\n\
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[books]\nreceipt_threshold = \"{threshold}\"\ncash_accounts = [\"1000\"]\n{extra}"
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||
),
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||
)
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||
.unwrap();
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||
path
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||
}
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||
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||
fn spawn_child(dir: &Path, toml: &Path) -> Child {
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||
let run = dir.join("run");
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||
std::fs::create_dir_all(&run).unwrap();
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Command::new(env!("CARGO_BIN_EXE_ledger-mcp"))
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.arg("--data-dir")
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.arg(dir.join("books-data"))
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.arg("--books-toml")
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.arg(toml)
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// books.show writes a viewer request here; keep it out of the
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// user's real runtime dir.
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.env("XDG_RUNTIME_DIR", &run)
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||
.stdin(Stdio::piped())
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||
.stdout(Stdio::piped())
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||
.stderr(Stdio::null())
|
||
.spawn()
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.expect("spawn ledger-mcp")
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||
}
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||
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||
impl Mcp {
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/// Spawn on `dir` with `toml`, initialize, and load `tools/list`.
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fn start(dir: &Path, toml: &Path) -> Self {
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||
let mut child = spawn_child(dir, toml);
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let stdin = child.stdin.take().unwrap();
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||
let stdout = BufReader::new(child.stdout.take().unwrap());
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||
let (tx, rx) = channel();
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||
std::thread::spawn(move || {
|
||
for line in stdout.lines() {
|
||
let Ok(line) = line else { break };
|
||
if tx.send(line).is_err() {
|
||
break;
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||
}
|
||
}
|
||
});
|
||
let mut mcp = Self {
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||
stdin,
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rx,
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||
child,
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||
next_id: 1,
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data: dir.join("books-data"),
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||
schemas: HashMap::new(),
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||
validators: HashMap::new(),
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exercised: BTreeSet::new(),
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||
money_violations: Vec::new(),
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||
};
|
||
let init = mcp.rpc(
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||
"initialize",
|
||
json!({
|
||
"protocolVersion": "2025-06-18",
|
||
"capabilities": {},
|
||
"clientInfo": {"name": "spec-test", "version": "0.1.0"},
|
||
}),
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||
);
|
||
assert!(init.get("result").is_some(), "initialize failed: {init}");
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||
mcp.send_line(
|
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&json!({"jsonrpc": "2.0", "method": "notifications/initialized"}).to_string(),
|
||
);
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||
let list = mcp.rpc("tools/list", json!({}));
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||
for tool in list["result"]["tools"].as_array().expect("tools") {
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||
let name = tool["name"].as_str().unwrap().to_string();
|
||
let schema = tool["outputSchema"].clone();
|
||
assert!(schema.is_object(), "{name} declares no outputSchema");
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||
let validator = jsonschema::validator_for(&schema)
|
||
.unwrap_or_else(|e| panic!("{name}'s outputSchema is not a valid schema: {e}"));
|
||
mcp.validators.insert(name.clone(), validator);
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||
mcp.schemas.insert(name, tool.clone());
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||
}
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||
mcp
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||
}
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||
|
||
fn journal(&self) -> Vec<u8> {
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||
std::fs::read(self.data.join("journal.jsonl")).unwrap_or_default()
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||
}
|
||
|
||
fn send_line(&mut self, line: &str) {
|
||
writeln!(self.stdin, "{line}").unwrap();
|
||
self.stdin.flush().unwrap();
|
||
}
|
||
|
||
/// The next JSON-RPC response (messages without an id, i.e. server
|
||
/// notifications, are skipped). `None` on timeout or EOF.
|
||
fn recv(&mut self, timeout: Duration) -> Option<Value> {
|
||
loop {
|
||
match self.rx.recv_timeout(timeout) {
|
||
Ok(line) => {
|
||
let v: Value = serde_json::from_str(&line)
|
||
.unwrap_or_else(|e| panic!("server wrote non-JSON {line:?}: {e}"));
|
||
if v.get("id").is_none() && v.get("method").is_some() {
|
||
continue;
|
||
}
|
||
return Some(v);
|
||
}
|
||
Err(RecvTimeoutError::Timeout | RecvTimeoutError::Disconnected) => return None,
|
||
}
|
||
}
|
||
}
|
||
|
||
/// Send a request and return its response, checking JSON-RPC 2.0 §5:
|
||
/// one response, same id, `jsonrpc: "2.0"`, result xor error.
|
||
fn rpc(&mut self, method: &str, params: Value) -> Value {
|
||
let id = self.next_id;
|
||
self.next_id += 1;
|
||
let msg = json!({"jsonrpc": "2.0", "id": id, "method": method, "params": params});
|
||
self.send_line(&msg.to_string());
|
||
let resp = self
|
||
.recv(TIMEOUT)
|
||
.unwrap_or_else(|| panic!("no response to {method} (id {id}): server hung or died"));
|
||
check_response_shape(&resp);
|
||
assert_eq!(resp["id"], json!(id), "response id mismatch: {resp}");
|
||
resp
|
||
}
|
||
|
||
/// Call a tool and check invariants 1, 2, 3 and 7 on the outcome.
|
||
fn tool(&mut self, name: &str, args: Value) -> Out {
|
||
let before = self.journal();
|
||
let resp = self.rpc("tools/call", json!({"name": name, "arguments": args}));
|
||
let out = if let Some(err) = resp.get("error") {
|
||
Out::RpcErr(err.clone())
|
||
} else {
|
||
let result = &resp["result"];
|
||
if result.get("isError") == Some(&json!(true)) {
|
||
let text = result["content"]
|
||
.as_array()
|
||
.and_then(|c| c.iter().find_map(|b| b["text"].as_str()))
|
||
.unwrap_or_default()
|
||
.to_string();
|
||
Out::ToolErr(text)
|
||
} else {
|
||
Out::Ok(self.check_success(name, result))
|
||
}
|
||
};
|
||
if out.refused() {
|
||
assert!(
|
||
self.journal() == before,
|
||
"invariant 2: refused {name} {args} changed the journal ({out:?})"
|
||
);
|
||
}
|
||
out
|
||
}
|
||
|
||
/// Invariant 1 (schema + text block) and invariant 3 (amounts out).
|
||
fn check_success(&mut self, name: &str, result: &Value) -> Value {
|
||
let sc = result
|
||
.get("structuredContent")
|
||
.unwrap_or_else(|| panic!("{name}: success without structuredContent: {result}"))
|
||
.clone();
|
||
let validator = self
|
||
.validators
|
||
.get(name)
|
||
.unwrap_or_else(|| panic!("{name} is not in tools/list"));
|
||
let errors: Vec<String> = validator
|
||
.iter_errors(&sc)
|
||
.map(|e| format!("{} at {}", e, e.instance_path()))
|
||
.collect();
|
||
assert!(
|
||
errors.is_empty(),
|
||
"invariant 1: {name} result violates its outputSchema: {errors:?}\n{sc}"
|
||
);
|
||
let same_text = result["content"].as_array().is_some_and(|blocks| {
|
||
blocks.iter().any(|b| {
|
||
b["type"] == "text"
|
||
&& b["text"]
|
||
.as_str()
|
||
.and_then(|t| serde_json::from_str::<Value>(t).ok())
|
||
.is_some_and(|v| v == sc)
|
||
})
|
||
});
|
||
assert!(
|
||
same_text,
|
||
"invariant 1: {name} has no text block holding its structuredContent"
|
||
);
|
||
let mut bad = Vec::new();
|
||
money_walk(&sc, "$", None, &mut bad);
|
||
for b in bad {
|
||
self.money_violations.push(format!("{name}: {b}"));
|
||
}
|
||
self.exercised.insert(name.to_string());
|
||
sc
|
||
}
|
||
|
||
/// `tool`, expecting success.
|
||
fn ok(&mut self, name: &str, args: Value) -> Value {
|
||
let a = args.to_string();
|
||
self.tool(name, args).ok(&format!("{name} {a}"))
|
||
}
|
||
|
||
/// `tool`, expecting a refusal (isError or JSON-RPC error).
|
||
fn refuse(&mut self, name: &str, args: Value) -> String {
|
||
let a = args.to_string();
|
||
let out = self.tool(name, args);
|
||
assert!(out.refused(), "{name} {a} should be refused, got {out:?}");
|
||
out.err_text()
|
||
}
|
||
|
||
/// Add accounts `(code, name, type)`; returns their ids.
|
||
fn accounts(&mut self, accts: &[(&str, &str, &str)]) -> Vec<u64> {
|
||
accts
|
||
.iter()
|
||
.map(|(code, name, ty)| {
|
||
self.ok(
|
||
"books.add_account",
|
||
json!({"code": code, "name": name, "account_type": ty}),
|
||
)["account_id"]
|
||
.as_u64()
|
||
.unwrap()
|
||
})
|
||
.collect()
|
||
}
|
||
|
||
/// Draft an entry with `(account, side, amount)` lines; returns its id.
|
||
fn draft(&mut self, date: &str, desc: &str, lines: &[(&str, &str, &str)]) -> u64 {
|
||
let id = self.ok(
|
||
"books.draft_entry",
|
||
json!({"date": date, "description": desc}),
|
||
)["entry_id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
for (account, side, amount) in lines {
|
||
self.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": id, "account": account, "side": side, "amount": amount}),
|
||
);
|
||
}
|
||
id
|
||
}
|
||
|
||
fn attach(&mut self, entry: Option<u64>, bytes: &[u8]) -> u64 {
|
||
let mut args = json!({
|
||
"file_name": "receipt.txt",
|
||
"mime_type": "text/plain",
|
||
"content_base64": b64(bytes),
|
||
});
|
||
if let Some(e) = entry {
|
||
args["entry_id"] = json!(e);
|
||
}
|
||
self.ok("books.attach_receipt", args)["attachment_id"]
|
||
.as_u64()
|
||
.unwrap()
|
||
}
|
||
|
||
fn post(&mut self, entry: u64) -> Out {
|
||
self.tool(
|
||
"books.post_entry",
|
||
json!({"entry_id": entry, "confirmed": true}),
|
||
)
|
||
}
|
||
|
||
fn entry_status(&mut self, entry: u64) -> String {
|
||
self.ok("books.get_entry", json!({"entry_id": entry}))["status"]
|
||
.as_str()
|
||
.unwrap()
|
||
.to_string()
|
||
}
|
||
}
|
||
|
||
fn check_response_shape(resp: &Value) {
|
||
assert_eq!(
|
||
resp["jsonrpc"], "2.0",
|
||
"not a JSON-RPC 2.0 response: {resp}"
|
||
);
|
||
let has_result = resp.get("result").is_some();
|
||
let has_error = resp.get("error").is_some();
|
||
assert!(
|
||
has_result ^ has_error,
|
||
"response must have exactly one of result/error: {resp}"
|
||
);
|
||
assert!(resp.get("id").is_some(), "response without id: {resp}");
|
||
if has_error {
|
||
assert!(
|
||
resp["error"]["code"].is_i64(),
|
||
"error code must be an integer: {resp}"
|
||
);
|
||
}
|
||
}
|
||
|
||
/// Invariant 3, amounts out: under a money key, no JSON number, and every
|
||
/// string matches `^-?\d+\.\d{2,}$`.
|
||
fn money_walk(v: &Value, path: &str, key: Option<&str>, bad: &mut Vec<String>) {
|
||
let money = key.is_some_and(|k| MONEY_KEYS.contains(&k));
|
||
match v {
|
||
Value::Number(_) if money => bad.push(format!("{path} = {v} (JSON number)")),
|
||
Value::String(s) if money && !is_money_out(s) => bad.push(format!("{path} = {s:?}")),
|
||
Value::Object(m) => {
|
||
for (k, child) in m {
|
||
money_walk(child, &format!("{path}.{k}"), Some(k), bad);
|
||
}
|
||
}
|
||
Value::Array(a) => {
|
||
for (i, child) in a.iter().enumerate() {
|
||
money_walk(child, &format!("{path}[{i}]"), key, bad);
|
||
}
|
||
}
|
||
_ => {}
|
||
}
|
||
}
|
||
|
||
/// `^-?\d+\.\d{2,}$`
|
||
fn is_money_out(s: &str) -> bool {
|
||
let s = s.strip_prefix('-').unwrap_or(s);
|
||
let Some((int, frac)) = s.split_once('.') else {
|
||
return false;
|
||
};
|
||
!int.is_empty()
|
||
&& int.bytes().all(|b| b.is_ascii_digit())
|
||
&& frac.len() >= 2
|
||
&& frac.bytes().all(|b| b.is_ascii_digit())
|
||
}
|
||
|
||
/// The amount-in grammar, server invariant 3: `-?digits[.digits]`.
|
||
fn is_amount_in(s: &str) -> bool {
|
||
let s = s.strip_prefix('-').unwrap_or(s);
|
||
let (int, frac) = match s.split_once('.') {
|
||
Some((i, f)) => (i, Some(f)),
|
||
None => (s, None),
|
||
};
|
||
!int.is_empty()
|
||
&& int.bytes().all(|b| b.is_ascii_digit())
|
||
&& frac.is_none_or(|f| !f.is_empty() && f.bytes().all(|b| b.is_ascii_digit()))
|
||
}
|
||
|
||
/// Canonical form of a grammatical decimal: no leading zeros, no trailing
|
||
/// fractional zeros. Compares two decimal strings by value.
|
||
fn canon(s: &str) -> String {
|
||
let (neg, s) = match s.strip_prefix('-') {
|
||
Some(r) => (true, r),
|
||
None => (false, s),
|
||
};
|
||
let (int, frac) = s.split_once('.').unwrap_or((s, ""));
|
||
let int = int.trim_start_matches('0');
|
||
let frac = frac.trim_end_matches('0');
|
||
let int = if int.is_empty() { "0" } else { int };
|
||
let body = if frac.is_empty() {
|
||
int.to_string()
|
||
} else {
|
||
format!("{int}.{frac}")
|
||
};
|
||
if neg && body != "0" {
|
||
format!("-{body}")
|
||
} else {
|
||
body
|
||
}
|
||
}
|
||
|
||
fn b64(bytes: &[u8]) -> String {
|
||
const T: &[u8; 64] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
||
let mut out = String::new();
|
||
for chunk in bytes.chunks(3) {
|
||
let n = (u32::from(chunk[0]) << 16)
|
||
| (u32::from(*chunk.get(1).unwrap_or(&0)) << 8)
|
||
| u32::from(*chunk.get(2).unwrap_or(&0));
|
||
for i in 0..4 {
|
||
if i <= chunk.len() {
|
||
out.push(T[((n >> (18 - 6 * i)) & 63) as usize] as char);
|
||
} else {
|
||
out.push('=');
|
||
}
|
||
}
|
||
}
|
||
out
|
||
}
|
||
|
||
/// A chart used by several tests.
|
||
const BASE_CHART: &[(&str, &str, &str)] = &[
|
||
("1000", "Bank", "asset"),
|
||
("1200", "Accounts Receivable", "asset"),
|
||
("2000", "Accounts Payable", "liability"),
|
||
("2100", "Due to Shareholders", "liability"),
|
||
("3000", "Capital A", "equity"),
|
||
("3001", "Capital B", "equity"),
|
||
("4000", "Revenue", "revenue"),
|
||
("6000", "Rent", "expense"),
|
||
("6999", "General Expenses", "expense"),
|
||
];
|
||
|
||
// ------------------------------------------------- invariant 1: schemas
|
||
|
||
/// Every tool, read-only and mutating, on a scripted happy path; every
|
||
/// success validated by `Mcp::tool`. Returns the server for inspection.
|
||
fn happy_path(name: &str) -> Mcp {
|
||
let dir = test_dir(name);
|
||
let toml = books_toml(
|
||
&dir,
|
||
"1000000.00",
|
||
"financing_accounts = [\"2100\"]\n\
|
||
[[company.members]]\nname = \"A\"\nshare = \"50%\"\ncapital_account = \"3000\"\n\
|
||
[[company.members]]\nname = \"B\"\nshare = \"50%\"\ncapital_account = \"3001\"\n",
|
||
);
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
|
||
// Empty books: every read-only tool.
|
||
m.ok("books.chart", json!({}));
|
||
m.ok(
|
||
"books.chart_template",
|
||
json!({"entity_type": "partnership", "owners": ["A", "B"]}),
|
||
);
|
||
let cats = m.ok("books.tax_categories", json!({}));
|
||
m.ok("books.trial_balance", json!({}));
|
||
m.ok("books.balance_sheet", json!({}));
|
||
m.ok("books.profit_and_loss", json!({}));
|
||
m.ok("books.list_assets", json!({}));
|
||
m.ok("books.list_classes", json!({}));
|
||
m.ok("books.list_payroll_runs", json!({}));
|
||
m.ok("books.list_periods", json!({}));
|
||
m.ok("books.list_receipts", json!({}));
|
||
m.ok("books.list_recurring", json!({}));
|
||
m.ok("books.list_schedules", json!({}));
|
||
m.ok("books.list_vendors", json!({}));
|
||
m.ok("books.digest", json!({"since": "2026-01-01"}));
|
||
|
||
// Chart.
|
||
m.accounts(BASE_CHART);
|
||
m.accounts(&[
|
||
("1300", "Prepaid Expenses", "asset"),
|
||
("1500", "Equipment", "asset"),
|
||
("1510", "Accumulated Depreciation", "asset"),
|
||
("2400", "Deferred Revenue", "liability"),
|
||
("3999", "Retained Earnings", "equity"),
|
||
("6010", "Platform Fees", "expense"),
|
||
("6500", "Depreciation Expense", "expense"),
|
||
]);
|
||
m.ok(
|
||
"books.import_chart_csv",
|
||
json!({"csv_text": "code,name,type,parent_code\n7000,Gain or Loss on Disposal,expense,\n"}),
|
||
);
|
||
m.ok(
|
||
"books.renumber_account",
|
||
json!({"account": "7000", "code": "7100"}),
|
||
);
|
||
m.ok("books.settings", json!({}));
|
||
m.ok("books.roles", json!({}));
|
||
m.ok(
|
||
"books.assign_role",
|
||
json!({"role": "general_expense", "account": "7100"}),
|
||
);
|
||
m.ok(
|
||
"books.assign_role",
|
||
json!({"role": "general_expense", "account": null}),
|
||
);
|
||
let deduction = cats["categories"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.find(|c| c["kind"] == "deduction")
|
||
.expect("a deduction category")["key"]
|
||
.clone();
|
||
m.ok(
|
||
"books.set_tax_category",
|
||
json!({"account": "6000", "category": deduction}),
|
||
);
|
||
|
||
// Classes, parties, 1099.
|
||
m.ok("books.add_class", json!({"name": "Rondo"}));
|
||
m.ok("books.list_classes", json!({}));
|
||
let vendor = m.ok("books.add_vendor", json!({"name": "Landlord"}))["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
let customer = m.ok("books.add_customer", json!({"name": "Client"}))["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
m.ok(
|
||
"books.set_vendor_1099",
|
||
json!({"vendor": "Landlord", "form_1099": "misc", "tin_on_file": true}),
|
||
);
|
||
m.ok("books.list_vendors", json!({}));
|
||
|
||
// Owner contribution: draft, lines, receipt, preview, post.
|
||
let e1 = m.draft(
|
||
"2026-01-02",
|
||
"Owner contribution",
|
||
&[
|
||
("1000", "debit", "10000.00"),
|
||
("3000", "credit", "5000.00"),
|
||
("3001", "credit", "5000.00"),
|
||
],
|
||
);
|
||
m.attach(Some(e1), b"contribution receipt");
|
||
m.ok("books.post_entry", json!({"entry_id": e1}));
|
||
m.ok(
|
||
"books.post_entry",
|
||
json!({"entry_id": e1, "confirmed": true, "expected_total": "10000.00"}),
|
||
);
|
||
m.ok("books.get_entry", json!({"entry_id": e1}));
|
||
|
||
// Rent: vendor, class, unlinked receipt then link, clearing.
|
||
let e2 = m.ok(
|
||
"books.draft_entry",
|
||
json!({"date": "2026-01-15", "description": "January rent", "vendor": "Landlord"}),
|
||
)["entry_id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e2, "account": "6000", "side": "debit", "amount": "100.00", "class": "Rondo"}),
|
||
);
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e2, "account": "1000", "side": "credit", "amount": "100.00"}),
|
||
);
|
||
let r_old = m.attach(None, b"rent receipt v1");
|
||
m.ok(
|
||
"books.link_receipt",
|
||
json!({"attachment_id": r_old, "entry_id": e2}),
|
||
);
|
||
m.post(e2).ok("post rent");
|
||
m.ok(
|
||
"books.mark_cleared",
|
||
json!({"entry_id": e2, "line_index": 1, "cleared": true}),
|
||
);
|
||
m.ok(
|
||
"books.set_entry_vendor",
|
||
json!({"entry_id": e2, "vendor": vendor.to_string()}),
|
||
);
|
||
// Replace the receipt: attach new, unlink old, retire it.
|
||
m.attach(Some(e2), b"rent receipt v2");
|
||
m.ok(
|
||
"books.unlink_receipt",
|
||
json!({"attachment_id": r_old, "reason": "replaced by v2"}),
|
||
);
|
||
m.ok(
|
||
"books.withdraw_attachment",
|
||
json!({"attachment_id": r_old, "reason": "superseded"}),
|
||
);
|
||
m.ok("books.list_receipts", json!({"include_withdrawn": true}));
|
||
m.ok("books.list_receipts", json!({"entry_id": e2}));
|
||
m.ok("books.get_receipt", json!({"attachment_id": r_old}));
|
||
let doc = m.ok(
|
||
"books.file_document",
|
||
json!({"category": "legal", "file_name": "agreement.txt", "mime_type": "text/plain",
|
||
"content_base64": b64(b"operating agreement"), "description": "OA"}),
|
||
)["attachment_id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
let local = dir.join("local-receipt.txt");
|
||
std::fs::write(&local, b"a local receipt").unwrap();
|
||
m.ok(
|
||
"books.import_local_file",
|
||
json!({"path": local.to_str().unwrap(), "category": "receipt"}),
|
||
);
|
||
|
||
// Reversal: preview, then confirmed.
|
||
let e3 = m.draft(
|
||
"2026-01-20",
|
||
"Mistake",
|
||
&[("6999", "debit", "50.00"), ("1000", "credit", "50.00")],
|
||
);
|
||
m.attach(Some(e3), b"mistake receipt");
|
||
m.post(e3).ok("post mistake");
|
||
let rev = json!({"entry_id": e3, "date": "2026-01-21", "description": "Reverse mistake"});
|
||
m.ok("books.reverse_entry", rev.clone());
|
||
let mut rev_c = rev;
|
||
rev_c["confirmed"] = json!(true);
|
||
m.ok("books.reverse_entry", rev_c);
|
||
|
||
// FX.
|
||
m.ok(
|
||
"books.set_fx_rate",
|
||
json!({"currency": "EUR", "date": "2026-01-01", "rate": "1.10"}),
|
||
);
|
||
let fx = m.ok(
|
||
"books.draft_entry",
|
||
json!({"date": "2026-04-22", "description": "EUR draft"}),
|
||
)["entry_id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": fx, "account": "6999", "side": "debit", "amount": "11.00",
|
||
"foreign_currency": "EUR", "foreign_amount": "10.00", "fx_rate": "1.10"}),
|
||
);
|
||
|
||
// A/R and A/P.
|
||
let inv = m.ok(
|
||
"books.create_invoice",
|
||
json!({"party_id": customer, "date": "2026-02-01", "due_date": "2026-03-01",
|
||
"lines": [{"description": "Consulting", "amount": "500.00"}]}),
|
||
)["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
m.ok(
|
||
"books.receive_payment",
|
||
json!({"document_id": inv, "date": "2026-02-10", "amount": "200.00", "cash_account": "1000"}),
|
||
);
|
||
let bill = m.ok(
|
||
"books.create_bill",
|
||
json!({"party_id": vendor, "date": "2026-02-01", "due_date": "2026-02-28",
|
||
"lines": [{"description": "Office rent", "amount": "300.00"}]}),
|
||
)["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
m.ok(
|
||
"books.pay_bill",
|
||
json!({"document_id": bill, "date": "2026-02-05", "amount": "300.00", "cash_account": "1000"}),
|
||
);
|
||
m.ok("books.ar_aging", json!({"as_of": "2026-06-30"}));
|
||
m.ok("books.ap_aging", json!({"as_of": "2026-06-30"}));
|
||
|
||
// Fixed assets.
|
||
let registered = m.ok(
|
||
"books.register_asset",
|
||
json!({"description": "Laptop", "purchase_date": "2026-01-10", "cost": "3000.00",
|
||
"salvage_value": "0.00", "useful_life_months": 36, "cost_account": "1500",
|
||
"accum_depr_account": "1510", "expense_account": "6500"}),
|
||
);
|
||
assert_eq!(registered["tag"], "S-0001", "\"Spec Co\" without \"Co\": S");
|
||
let asset = registered["asset_id"].as_u64().unwrap();
|
||
m.ok("books.asset_schedule", json!({"asset_id": asset}));
|
||
m.ok("books.asset_schedule", json!({"tag": "s-0001"}));
|
||
m.ok(
|
||
"books.label_asset",
|
||
json!({"asset": "S-0001", "tag": "LAPTOP-1", "serial": "SN 123"}),
|
||
);
|
||
m.ok("books.asset_labels", json!({}));
|
||
m.ok(
|
||
"books.asset_labels",
|
||
json!({"assets": ["LAPTOP-1"], "skip": 3}),
|
||
);
|
||
m.ok(
|
||
"books.export",
|
||
json!({"report": "fixed_asset_register", "format": "json", "as_of": "2026-03-31"}),
|
||
);
|
||
m.ok("books.list_assets", json!({}));
|
||
m.ok("books.run_depreciation", json!({"period": "2026-01"}));
|
||
let dispose = json!({"asset_id": asset, "date": "2026-06-15", "proceeds": "1000.00",
|
||
"proceeds_account": "1000", "gain_loss_account": "7100"});
|
||
m.ok("books.dispose_asset", dispose.clone());
|
||
let mut dispose_c = dispose;
|
||
dispose_c["confirmed"] = json!(true);
|
||
dispose_c["receipt_attachment_ids"] = json!([doc]);
|
||
m.ok("books.dispose_asset", dispose_c);
|
||
|
||
// Schedules and recurring.
|
||
m.ok(
|
||
"books.create_schedule",
|
||
json!({"kind": "prepaid_expense", "description": "Insurance", "total": "1200.00",
|
||
"start": "2026-01-01", "months": 12, "balance_account": "1300", "pl_account": "6999"}),
|
||
);
|
||
m.ok("books.list_schedules", json!({}));
|
||
m.ok("books.run_schedules", json!({"through": "2026-03-31"}));
|
||
m.ok(
|
||
"books.run_schedules",
|
||
json!({"through": "2026-03-31", "confirmed": true}),
|
||
);
|
||
m.ok(
|
||
"books.create_recurring",
|
||
json!({"description": "Hosting", "frequency": "monthly", "start": "2026-04-30",
|
||
"end": "2026-06-30", "lines": [
|
||
{"account": "6999", "side": "debit", "amount": "10.00"},
|
||
{"account": "1000", "side": "credit", "amount": "10.00"}]}),
|
||
);
|
||
m.ok("books.list_recurring", json!({}));
|
||
m.ok("books.run_recurring", json!({"through": "2026-06-30"}));
|
||
|
||
// Payouts.
|
||
m.ok(
|
||
"books.record_payout",
|
||
json!({"date": "2026-02-28", "description": "App Store payout", "deposit_account": "1000",
|
||
"deposit": "85.00", "revenue": [{"account": "4000", "amount": "100.00"}],
|
||
"fees": [{"account": "6010", "amount": "15.00"}]}),
|
||
);
|
||
|
||
// Payroll.
|
||
m.ok(
|
||
"books.run_payroll",
|
||
json!({"date": "2026-02-15", "cash_account": "1000", "lines": [{
|
||
"employee_name": "Pat", "gross_pay": "1000.00", "federal_withholding": "100.00",
|
||
"state_withholding": "50.00", "ss_employee": "62.00", "medicare_employee": "14.50",
|
||
"ss_employer": "62.00", "medicare_employer": "14.50", "other_deductions": "0.00"}]}),
|
||
);
|
||
m.ok("books.list_payroll_runs", json!({}));
|
||
m.ok(
|
||
"books.remit_payroll_taxes",
|
||
json!({"date": "2026-02-20", "cash_account": "1000"}),
|
||
);
|
||
|
||
// Bank import and reconciliation.
|
||
m.ok(
|
||
"books.import_bank_csv",
|
||
json!({"csv_text": "Date,Description,Amount\n2026-03-05,Coffee,-4.50\n",
|
||
"bank_account_code": "1000", "default_offset_code": "6999"}),
|
||
);
|
||
m.ok(
|
||
"books.reconcile",
|
||
json!({"account": "1000", "statement_date": "2026-12-31", "statement_balance": "100.00"}),
|
||
);
|
||
|
||
// Periods.
|
||
let p = m.ok(
|
||
"books.create_period",
|
||
json!({"name": "2026-01", "start": "2026-01-01", "end": "2026-01-31"}),
|
||
)["period_id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
m.ok("books.list_periods", json!({}));
|
||
m.ok("books.close_period", json!({"period_id": p}));
|
||
m.ok(
|
||
"books.close_period",
|
||
json!({"period_id": p, "confirmed": true}),
|
||
);
|
||
|
||
// Reports over the populated books.
|
||
m.ok("books.chart", json!({}));
|
||
m.ok("books.trial_balance", json!({"as_of": "2026-12-31"}));
|
||
m.ok("books.balance_sheet", json!({"as_of": "2026-12-31"}));
|
||
m.ok(
|
||
"books.profit_and_loss",
|
||
json!({"start": "2026-01-01", "end": "2026-12-31"}),
|
||
);
|
||
m.ok("books.profit_and_loss", json!({"class": "Rondo"}));
|
||
m.ok(
|
||
"books.profit_and_loss_by_class",
|
||
json!({"start": "2026-01-01", "end": "2026-12-31"}),
|
||
);
|
||
m.ok(
|
||
"books.cash_flow",
|
||
json!({"start": "2026-01-01", "end": "2026-12-31"}),
|
||
);
|
||
m.ok("books.digest", json!({"since": "2026-01-01"}));
|
||
m.ok("books.search_entries", json!({"text": "rent", "limit": 10}));
|
||
m.ok("books.vendor_1099", json!({"year": 2026}));
|
||
m.ok("books.verify", json!({}));
|
||
m.ok("books.show", json!({"entry_id": e1}));
|
||
m.ok(
|
||
"books.show",
|
||
json!({"report": "balance_sheet", "end": "2026-12-31"}),
|
||
);
|
||
for (format, report) in [
|
||
("csv", "trial_balance"),
|
||
("json", "profit_and_loss"),
|
||
("xlsx", "balance_sheet"),
|
||
("pdf", "profit_and_loss"),
|
||
("csv", "cash_flow"),
|
||
("iif", "journal"),
|
||
("csv", "general_ledger"),
|
||
("json", "members_equity"),
|
||
("csv", "tax_summary"),
|
||
] {
|
||
m.ok(
|
||
"books.export",
|
||
json!({"format": format, "report": report, "start": "2026-01-01", "end": "2026-12-31"}),
|
||
);
|
||
}
|
||
m.ok(
|
||
"books.export_cpa_package",
|
||
json!({"as_of": "2026-12-31", "include_receipts": false}),
|
||
);
|
||
|
||
m
|
||
}
|
||
|
||
/// Invariant 1 over every tool. Fails listing any tool never exercised
|
||
/// successfully.
|
||
#[test]
|
||
fn inv1_every_tool_result_matches_its_output_schema() {
|
||
let m = happy_path("inv1");
|
||
let missing: Vec<&String> = m
|
||
.schemas
|
||
.keys()
|
||
.filter(|t| !m.exercised.contains(*t))
|
||
.collect();
|
||
assert!(missing.is_empty(), "tools never exercised: {missing:?}");
|
||
}
|
||
|
||
/// Invariant 3, amounts out, weak form: no money key ever holds a JSON
|
||
/// number, over every tool's results.
|
||
#[test]
|
||
fn inv3_amounts_out_are_never_json_numbers() {
|
||
let m = happy_path("inv3-out-numbers");
|
||
let numbers: Vec<&String> = m
|
||
.money_violations
|
||
.iter()
|
||
.filter(|v| v.contains("JSON number"))
|
||
.collect();
|
||
assert!(numbers.is_empty(), "{numbers:#?}");
|
||
}
|
||
|
||
/// Invariant 3, amounts out, full form: every amount is a decimal string
|
||
/// with at least two places.
|
||
#[test]
|
||
fn inv3_amounts_out_have_at_least_two_places() {
|
||
let m = happy_path("inv3-out-places");
|
||
assert!(
|
||
m.money_violations.is_empty(),
|
||
"invariant 3 (amounts out): {:#?}",
|
||
m.money_violations
|
||
);
|
||
}
|
||
|
||
// ------------------------------------- invariants 2 and 7: state machine
|
||
|
||
/// An id argument: usually one the books handed out (by index into what
|
||
/// this run has created), sometimes a raw number that may not exist.
|
||
#[derive(Debug, Clone, Copy)]
|
||
enum Pick {
|
||
Known(usize),
|
||
Raw(u64),
|
||
}
|
||
|
||
impl Pick {
|
||
fn resolve(self, known: &[u64]) -> u64 {
|
||
match self {
|
||
Pick::Known(i) if !known.is_empty() => known[i % known.len()],
|
||
Pick::Known(i) => i as u64,
|
||
Pick::Raw(n) => n,
|
||
}
|
||
}
|
||
}
|
||
|
||
fn pick() -> impl Strategy<Value = Pick> {
|
||
prop_oneof![3 => (0usize..16).prop_map(Pick::Known), 1 => (0u64..12).prop_map(Pick::Raw)]
|
||
}
|
||
|
||
/// Ids handed out so far in a run.
|
||
#[derive(Default)]
|
||
struct Known {
|
||
entries: Vec<u64>,
|
||
attachments: Vec<u64>,
|
||
periods: Vec<u64>,
|
||
vendors: Vec<u64>,
|
||
bills: Vec<u64>,
|
||
}
|
||
|
||
/// One step of the random walk.
|
||
#[derive(Debug, Clone)]
|
||
enum Op {
|
||
Draft {
|
||
date: String,
|
||
desc: String,
|
||
},
|
||
/// Draft plus two lines (debit `account`, credit 1000), optionally
|
||
/// with a receipt: several calls, each checked.
|
||
Balanced {
|
||
date: String,
|
||
desc: String,
|
||
account: String,
|
||
amount: String,
|
||
receipt: bool,
|
||
},
|
||
AddLine {
|
||
entry: Pick,
|
||
account: String,
|
||
side: String,
|
||
amount: String,
|
||
},
|
||
Post {
|
||
entry: Pick,
|
||
confirmed: Option<bool>,
|
||
},
|
||
Reverse {
|
||
entry: Pick,
|
||
date: String,
|
||
confirmed: Option<bool>,
|
||
},
|
||
Attach {
|
||
entry: Option<Pick>,
|
||
content: String,
|
||
},
|
||
Link {
|
||
att: Pick,
|
||
entry: Pick,
|
||
},
|
||
Unlink {
|
||
att: Pick,
|
||
},
|
||
Withdraw {
|
||
att: Pick,
|
||
},
|
||
CreatePeriod {
|
||
start: String,
|
||
end: String,
|
||
},
|
||
ClosePeriod {
|
||
id: Pick,
|
||
confirmed: bool,
|
||
},
|
||
AddAccount {
|
||
code: String,
|
||
ty: String,
|
||
},
|
||
AddVendor {
|
||
name: String,
|
||
},
|
||
CreateBill {
|
||
party: Pick,
|
||
amount: String,
|
||
},
|
||
PayBill {
|
||
doc: Pick,
|
||
amount: String,
|
||
},
|
||
Payout {
|
||
deposit: String,
|
||
},
|
||
Renumber {
|
||
account: String,
|
||
code: String,
|
||
},
|
||
Read(u8),
|
||
UnknownTool,
|
||
MissingArgs,
|
||
WrongTypes,
|
||
}
|
||
|
||
fn date_strategy() -> impl Strategy<Value = String> {
|
||
prop_oneof![
|
||
8 => (1u32..=6, 1u32..=28).prop_map(|(m, d)| format!("2026-{m:02}-{d:02}")),
|
||
1 => prop::sample::select(vec![
|
||
"2026-02-30", "2026-13-01", "26-1-1", "", "2026/01/05", "yesterday", "2026-1-5",
|
||
])
|
||
.prop_map(String::from),
|
||
]
|
||
}
|
||
|
||
fn amount_strategy() -> impl Strategy<Value = String> {
|
||
prop_oneof![
|
||
6 => (1u64..=6000).prop_map(|c| format!("{}.{:02}", c / 100, c % 100)),
|
||
2 => prop::sample::select(vec!["25.00", "25.01", "20.00", "5"]).prop_map(String::from),
|
||
2 => prop::sample::select(vec![
|
||
"1e3", "+5", ".5", "5.", "1,000", " 5", "abc", "", "-", "-5.00", "0", "0.001", "NaN",
|
||
])
|
||
.prop_map(String::from),
|
||
]
|
||
}
|
||
|
||
fn account_strategy() -> impl Strategy<Value = String> {
|
||
prop::sample::select(vec![
|
||
"1000", "1000", "2000", "4000", "6000", "6000", "6999", "1", "3", "9999", "", "abc",
|
||
])
|
||
.prop_map(String::from)
|
||
}
|
||
|
||
fn desc_strategy() -> impl Strategy<Value = String> {
|
||
prop::sample::select(vec!["Coffee", "coffee ", "Rent", "Supplies"]).prop_map(String::from)
|
||
}
|
||
|
||
fn op_strategy() -> impl Strategy<Value = Op> {
|
||
let confirmed = || prop::option::of(any::<bool>());
|
||
prop_oneof![
|
||
2 => (date_strategy(), desc_strategy()).prop_map(|(date, desc)| Op::Draft { date, desc }),
|
||
5 => (date_strategy(), desc_strategy(),
|
||
prop::sample::select(vec!["6000", "6999", "2000", "9999"]),
|
||
amount_strategy(), any::<bool>())
|
||
.prop_map(|(date, desc, a, amount, receipt)| Op::Balanced {
|
||
date, desc, account: a.to_string(), amount, receipt,
|
||
}),
|
||
5 => (pick(), account_strategy(),
|
||
prop::sample::select(vec!["debit", "credit", "debit", "credit", "Debit", "sideways"]),
|
||
amount_strategy())
|
||
.prop_map(|(entry, account, s, amount)| Op::AddLine { entry, account, side: s.to_string(), amount }),
|
||
6 => (pick(), confirmed()).prop_map(|(entry, confirmed)| Op::Post { entry, confirmed }),
|
||
2 => (pick(), date_strategy(), confirmed())
|
||
.prop_map(|(entry, date, confirmed)| Op::Reverse { entry, date, confirmed }),
|
||
3 => (prop::option::of(pick()), prop_oneof![
|
||
4 => prop::collection::vec(any::<u8>(), 1..24).prop_map(|b| b64(&b)),
|
||
1 => Just("!!not base64!!".to_string()),
|
||
])
|
||
.prop_map(|(entry, content)| Op::Attach { entry, content }),
|
||
1 => (pick(), pick()).prop_map(|(att, entry)| Op::Link { att, entry }),
|
||
1 => pick().prop_map(|att| Op::Unlink { att }),
|
||
1 => pick().prop_map(|att| Op::Withdraw { att }),
|
||
1 => (date_strategy(), date_strategy()).prop_map(|(start, end)| Op::CreatePeriod { start, end }),
|
||
1 => (pick(), any::<bool>()).prop_map(|(id, confirmed)| Op::ClosePeriod { id, confirmed }),
|
||
1 => (prop::sample::select(vec!["1000", "5000", "5001", "", "x"]),
|
||
prop::sample::select(vec!["asset", "expense", "revenue", "bogus"]))
|
||
.prop_map(|(c, t)| Op::AddAccount { code: c.to_string(), ty: t.to_string() }),
|
||
1 => prop::sample::select(vec!["Acme", "Acme", "", "1"]).prop_map(|n| Op::AddVendor { name: n.to_string() }),
|
||
1 => (pick(), amount_strategy()).prop_map(|(party, amount)| Op::CreateBill { party, amount }),
|
||
1 => (pick(), amount_strategy()).prop_map(|(doc, amount)| Op::PayBill { doc, amount }),
|
||
1 => amount_strategy().prop_map(|deposit| Op::Payout { deposit }),
|
||
1 => (account_strategy(), prop::sample::select(vec!["8000", "1000", ""]))
|
||
.prop_map(|(account, c)| Op::Renumber { account, code: c.to_string() }),
|
||
3 => (0u8..6).prop_map(Op::Read),
|
||
1 => Just(Op::UnknownTool),
|
||
1 => Just(Op::MissingArgs),
|
||
1 => Just(Op::WrongTypes),
|
||
]
|
||
}
|
||
|
||
/// The id a success handed out under `key`, if any.
|
||
fn new_id(out: &Out, key: &str) -> Option<u64> {
|
||
match out {
|
||
Out::Ok(v) => v[key].as_u64(),
|
||
_ => None,
|
||
}
|
||
}
|
||
|
||
fn run_op(m: &mut Mcp, k: &mut Known, op: &Op) {
|
||
let opt = |v: Option<bool>| v.map_or(Value::Null, Value::Bool);
|
||
let (tool, args) = match op {
|
||
Op::Draft { date, desc } => (
|
||
"books.draft_entry",
|
||
json!({"date": date, "description": desc}),
|
||
),
|
||
Op::Balanced {
|
||
date,
|
||
desc,
|
||
account,
|
||
amount,
|
||
receipt,
|
||
} => {
|
||
let out = m.tool(
|
||
"books.draft_entry",
|
||
json!({"date": date, "description": desc}),
|
||
);
|
||
let Some(e) = new_id(&out, "entry_id") else {
|
||
return;
|
||
};
|
||
k.entries.push(e);
|
||
for (acct, side) in [(account.as_str(), "debit"), ("1000", "credit")] {
|
||
m.tool(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": acct, "side": side, "amount": amount}),
|
||
);
|
||
}
|
||
if *receipt {
|
||
let bytes = format!("receipt for entry {e}");
|
||
let out = m.tool(
|
||
"books.attach_receipt",
|
||
json!({"entry_id": e, "file_name": "r.txt", "mime_type": "text/plain",
|
||
"content_base64": b64(bytes.as_bytes())}),
|
||
);
|
||
k.attachments.extend(new_id(&out, "attachment_id"));
|
||
}
|
||
return;
|
||
}
|
||
Op::AddLine {
|
||
entry,
|
||
account,
|
||
side,
|
||
amount,
|
||
} => (
|
||
"books.add_line",
|
||
json!({"entry_id": entry.resolve(&k.entries), "account": account, "side": side,
|
||
"amount": amount}),
|
||
),
|
||
Op::Post { entry, confirmed } => (
|
||
"books.post_entry",
|
||
json!({"entry_id": entry.resolve(&k.entries), "confirmed": opt(*confirmed)}),
|
||
),
|
||
Op::Reverse {
|
||
entry,
|
||
date,
|
||
confirmed,
|
||
} => (
|
||
"books.reverse_entry",
|
||
json!({"entry_id": entry.resolve(&k.entries), "date": date, "description": "undo",
|
||
"confirmed": opt(*confirmed)}),
|
||
),
|
||
Op::Attach { entry, content } => (
|
||
"books.attach_receipt",
|
||
json!({"entry_id": entry.map(|p| p.resolve(&k.entries)), "file_name": "r.bin",
|
||
"mime_type": "application/octet-stream", "content_base64": content}),
|
||
),
|
||
Op::Link { att, entry } => (
|
||
"books.link_receipt",
|
||
json!({"attachment_id": att.resolve(&k.attachments),
|
||
"entry_id": entry.resolve(&k.entries)}),
|
||
),
|
||
Op::Unlink { att } => (
|
||
"books.unlink_receipt",
|
||
json!({"attachment_id": att.resolve(&k.attachments), "reason": "test"}),
|
||
),
|
||
Op::Withdraw { att } => (
|
||
"books.withdraw_attachment",
|
||
json!({"attachment_id": att.resolve(&k.attachments), "reason": "test"}),
|
||
),
|
||
Op::CreatePeriod { start, end } => (
|
||
"books.create_period",
|
||
json!({"name": "P", "start": start, "end": end}),
|
||
),
|
||
Op::ClosePeriod { id, confirmed } => (
|
||
"books.close_period",
|
||
json!({"period_id": id.resolve(&k.periods), "confirmed": confirmed}),
|
||
),
|
||
Op::AddAccount { code, ty } => (
|
||
"books.add_account",
|
||
json!({"code": code, "name": format!("Acct {code}"), "account_type": ty}),
|
||
),
|
||
Op::AddVendor { name } => ("books.add_vendor", json!({"name": name})),
|
||
Op::CreateBill { party, amount } => (
|
||
"books.create_bill",
|
||
json!({"party_id": party.resolve(&k.vendors), "date": "2026-03-01",
|
||
"due_date": "2026-03-31", "lines": [{"description": "thing", "amount": amount}]}),
|
||
),
|
||
Op::PayBill { doc, amount } => (
|
||
"books.pay_bill",
|
||
json!({"document_id": doc.resolve(&k.bills), "date": "2026-03-15", "amount": amount,
|
||
"cash_account": "1000"}),
|
||
),
|
||
Op::Payout { deposit } => (
|
||
"books.record_payout",
|
||
json!({"date": "2026-03-31", "description": "payout", "deposit_account": "1000",
|
||
"deposit": deposit, "revenue": [{"account": "4000", "amount": "100.00"}],
|
||
"fees": [{"account": "6999", "amount": "15.00"}]}),
|
||
),
|
||
Op::Renumber { account, code } => (
|
||
"books.renumber_account",
|
||
json!({"account": account, "code": code}),
|
||
),
|
||
Op::Read(i) => match i {
|
||
0 => ("books.chart", json!({})),
|
||
1 => ("books.trial_balance", json!({"as_of": "2026-12-31"})),
|
||
2 => (
|
||
"books.get_entry",
|
||
json!({"entry_id": Pick::Known(0).resolve(&k.entries)}),
|
||
),
|
||
3 => ("books.list_receipts", json!({})),
|
||
4 => ("books.list_periods", json!({})),
|
||
_ => ("books.digest", json!({"since": "2026-01-01"})),
|
||
},
|
||
Op::UnknownTool => ("books.no_such_tool", json!({})),
|
||
Op::MissingArgs => ("books.add_line", json!({"entry_id": 1})),
|
||
Op::WrongTypes => (
|
||
"books.post_entry",
|
||
json!({"entry_id": "one", "confirmed": "yes"}),
|
||
),
|
||
};
|
||
// Mcp::tool checks invariants 1, 2, 3 (schema, text) and 7.
|
||
let out = m.tool(tool, args);
|
||
match tool {
|
||
"books.draft_entry" | "books.record_payout" => k.entries.extend(new_id(&out, "entry_id")),
|
||
"books.reverse_entry" => k.entries.extend(new_id(&out, "reversal_id")),
|
||
"books.attach_receipt" => k.attachments.extend(new_id(&out, "attachment_id")),
|
||
"books.create_period" => k.periods.extend(new_id(&out, "period_id")),
|
||
"books.add_vendor" => k.vendors.extend(new_id(&out, "id")),
|
||
"books.create_bill" => {
|
||
k.bills.extend(new_id(&out, "id"));
|
||
k.entries.extend(new_id(&out, "entry_id"));
|
||
}
|
||
_ => {}
|
||
}
|
||
}
|
||
|
||
proptest! {
|
||
#![proptest_config(ProptestConfig { cases: cases(), failure_persistence: None, ..ProptestConfig::default() })]
|
||
|
||
/// Invariants 2 and 7 under random call sequences: every call gets
|
||
/// exactly one response with its id, result xor error; any refusal
|
||
/// leaves the journal byte-identical; successes match their schemas;
|
||
/// and the server keeps answering afterwards.
|
||
#[test]
|
||
fn inv2_inv7_random_calls_keep_books_and_server_intact(
|
||
ops in prop::collection::vec(op_strategy(), 30..60)
|
||
) {
|
||
let dir = test_dir("sm");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let mut known = Known::default();
|
||
for op in &ops {
|
||
run_op(&mut m, &mut known, op);
|
||
}
|
||
// Still alive and consistent at the end.
|
||
m.ok("books.chart", json!({}));
|
||
let tb = m.ok("books.trial_balance", json!({"as_of": "2026-12-31"}));
|
||
prop_assert_eq!(&tb["balanced"], &json!(true));
|
||
drop(m);
|
||
let _ = std::fs::remove_dir_all(&dir);
|
||
}
|
||
}
|
||
|
||
// ---------------------------------------------- invariant 3: amounts in
|
||
|
||
const REFUSED_AMOUNTS: &[&str] = &[
|
||
"1e3", "1E3", "+5", ".5", "5.", "1_000", "1,000", " 5", "5 ", "", "-", "abc", "١٢٣", "5.0.0",
|
||
"0x10", "5..0", "--5", "5-", "Infinity", "NaN", "５",
|
||
];
|
||
|
||
/// Grammatical amounts with at most two places and a positive value: what
|
||
/// the core is expected to accept on a line.
|
||
const ACCEPTED_AMOUNTS: &[&str] = &["5", "5.00", "123.45", "5.5", "007.50", "1000000.00"];
|
||
|
||
fn amounts_server(name: &str) -> (PathBuf, Mcp, u64) {
|
||
let dir = test_dir(name);
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let e = m.draft("2026-03-01", "amounts", &[]);
|
||
(dir, m, e)
|
||
}
|
||
|
||
#[test]
|
||
fn inv3_add_line_amount_grammar_table() {
|
||
let (_dir, mut m, e) = amounts_server("inv3-table");
|
||
for a in REFUSED_AMOUNTS {
|
||
m.refuse(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "6000", "side": "debit", "amount": a}),
|
||
);
|
||
}
|
||
for a in ACCEPTED_AMOUNTS {
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "6000", "side": "debit", "amount": a}),
|
||
);
|
||
// Amounts out: the stored line keeps the value, never rounded.
|
||
let entry = m.ok("books.get_entry", json!({"entry_id": e}));
|
||
let last = entry["lines"].as_array().unwrap().last().unwrap().clone();
|
||
let out = last["amount"].as_str().expect("amount is a string");
|
||
assert_eq!(canon(out), canon(a), "line amount {out} for input {a}");
|
||
}
|
||
assert!(m.money_violations.is_empty(), "{:#?}", m.money_violations);
|
||
}
|
||
|
||
/// The amount grammar applies to every amount-taking tool, not just
|
||
/// add_line.
|
||
#[test]
|
||
fn inv3_other_tools_refuse_ungrammatical_amounts() {
|
||
let (_dir, mut m, e) = amounts_server("inv3-other");
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "6000", "side": "debit", "amount": "10.00"}),
|
||
);
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "1000", "side": "credit", "amount": "10.00"}),
|
||
);
|
||
let vendor = m.ok("books.add_vendor", json!({"name": "V"}))["id"].clone();
|
||
for bad in ["1e1", "+10.00", "10,00", " 10.00", "10.00 "] {
|
||
m.refuse(
|
||
"books.post_entry",
|
||
json!({"entry_id": e, "confirmed": true, "expected_total": bad}),
|
||
);
|
||
m.refuse(
|
||
"books.create_bill",
|
||
json!({"party_id": vendor, "date": "2026-03-01", "due_date": "2026-03-31",
|
||
"lines": [{"description": "x", "amount": bad}]}),
|
||
);
|
||
m.refuse(
|
||
"books.reconcile",
|
||
json!({"account": "1000", "statement_date": "2026-03-31", "statement_balance": bad}),
|
||
);
|
||
m.refuse(
|
||
"books.record_payout",
|
||
json!({"date": "2026-03-31", "description": "p", "deposit_account": "1000",
|
||
"deposit": bad, "revenue": [{"account": "4000", "amount": "10.00"}]}),
|
||
);
|
||
m.refuse(
|
||
"books.create_schedule",
|
||
json!({"kind": "prepaid_expense", "description": "s", "total": bad,
|
||
"start": "2026-01-01", "months": 12, "balance_account": "1200",
|
||
"pl_account": "6000"}),
|
||
);
|
||
}
|
||
}
|
||
|
||
fn amount_char() -> impl Strategy<Value = char> {
|
||
prop::sample::select(vec![
|
||
'0', '1', '5', '9', '0', '1', '5', '9', '.', '.', '-', '+', 'e', 'E', '_', ',', ' ', '١',
|
||
'x',
|
||
])
|
||
}
|
||
|
||
proptest! {
|
||
#![proptest_config(ProptestConfig { cases: 16, failure_persistence: None, ..ProptestConfig::default() })]
|
||
|
||
/// Random strings: ungrammatical ones are refused; grammatical ones
|
||
/// with at most two places and a positive value are accepted and come
|
||
/// back with the same value. Others (zero, negative, sub-cent) are the
|
||
/// core's business and aren't asserted.
|
||
#[test]
|
||
fn inv3_add_line_amount_grammar_random(
|
||
amounts in prop::collection::vec(
|
||
prop::collection::vec(amount_char(), 0..9).prop_map(|cs| cs.into_iter().collect::<String>()),
|
||
20..40,
|
||
)
|
||
) {
|
||
let (dir, mut m, e) = amounts_server("inv3-prop");
|
||
for a in &amounts {
|
||
let out = m.tool(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "6000", "side": "debit", "amount": a}),
|
||
);
|
||
if !is_amount_in(a) {
|
||
prop_assert!(out.refused(), "ungrammatical {:?} accepted", a);
|
||
continue;
|
||
}
|
||
let places = a.split_once('.').map_or(0, |(_, f)| f.len());
|
||
let positive = !a.starts_with('-') && canon(a) != "0";
|
||
if places <= 2 && positive && a.len() <= 7 {
|
||
prop_assert!(!out.refused(), "grammatical {:?} refused: {:?}", a, out);
|
||
let entry = m.ok("books.get_entry", json!({"entry_id": e}));
|
||
let last = entry["lines"].as_array().unwrap().last().unwrap().clone();
|
||
prop_assert_eq!(canon(last["amount"].as_str().unwrap()), canon(a));
|
||
}
|
||
}
|
||
prop_assert!(m.money_violations.is_empty(), "{:#?}", m.money_violations);
|
||
drop(m);
|
||
let _ = std::fs::remove_dir_all(&dir);
|
||
}
|
||
}
|
||
|
||
// ----------------------------------------- invariant 4: preview changes nothing
|
||
|
||
#[test]
|
||
fn inv4_post_and_reverse_preview_without_confirmed() {
|
||
let dir = test_dir("inv4");
|
||
let toml = books_toml(&dir, "1000000.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let e = m.draft(
|
||
"2026-04-01",
|
||
"Rent",
|
||
&[("6000", "debit", "40.00"), ("1000", "credit", "40.00")],
|
||
);
|
||
m.attach(Some(e), b"rent");
|
||
|
||
for args in [
|
||
json!({"entry_id": e}),
|
||
json!({"entry_id": e, "confirmed": false}),
|
||
json!({"entry_id": e, "confirmed": null}),
|
||
] {
|
||
let before = m.journal();
|
||
let p = m.ok("books.post_entry", args.clone());
|
||
assert_eq!(p["status"], "preview", "{args}: {p}");
|
||
assert!(m.journal() == before, "post_entry preview {args} wrote");
|
||
assert_eq!(m.entry_status(e), "draft");
|
||
}
|
||
let before = m.journal();
|
||
let posted = m.post(e).ok("confirmed post");
|
||
assert_eq!(posted["status"], "posted");
|
||
assert!(m.journal() != before, "confirmed post wrote nothing");
|
||
assert_eq!(m.entry_status(e), "posted");
|
||
|
||
let rev = json!({"entry_id": e, "date": "2026-04-02", "description": "undo"});
|
||
for extra in [json!({}), json!({"confirmed": false})] {
|
||
let mut args = rev.clone();
|
||
args.as_object_mut()
|
||
.unwrap()
|
||
.extend(extra.as_object().unwrap().clone());
|
||
let before = m.journal();
|
||
let p = m.ok("books.reverse_entry", args.clone());
|
||
assert_eq!(p["status"], "preview", "{args}: {p}");
|
||
assert!(m.journal() == before, "reverse_entry preview {args} wrote");
|
||
}
|
||
let mut args = rev;
|
||
args["confirmed"] = json!(true);
|
||
let before = m.journal();
|
||
let r = m.ok("books.reverse_entry", args);
|
||
assert_eq!(r["status"], "posted", "{r}");
|
||
assert!(m.journal() != before);
|
||
let tb = m.ok("books.trial_balance", json!({"as_of": "2026-12-31"}));
|
||
assert_eq!(tb["balanced"], true);
|
||
}
|
||
|
||
// ------------------------------------------ invariant 5: receipt policy
|
||
|
||
#[test]
|
||
fn inv5_threshold_is_strictly_greater_than() {
|
||
let dir = test_dir("inv5-25");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let at = m.draft(
|
||
"2026-05-01",
|
||
"At threshold",
|
||
&[("6000", "debit", "25.00"), ("1000", "credit", "25.00")],
|
||
);
|
||
m.post(at).ok("25.00 posts without a receipt");
|
||
let over = m.draft(
|
||
"2026-05-02",
|
||
"Over threshold",
|
||
&[("6000", "debit", "25.01"), ("1000", "credit", "25.01")],
|
||
);
|
||
let preview = m.ok("books.post_entry", json!({"entry_id": over}));
|
||
assert_eq!(preview["receipt_missing"], true, "{preview}");
|
||
let err = m.post(over).err_text();
|
||
assert!(err.contains("receipt_required"), "{err}");
|
||
assert_eq!(m.entry_status(over), "draft");
|
||
m.attach(Some(over), b"receipt for 25.01");
|
||
m.post(over).ok("25.01 posts with a receipt");
|
||
}
|
||
|
||
#[test]
|
||
fn inv5_zero_threshold_needs_a_receipt_on_every_entry() {
|
||
let dir = test_dir("inv5-0");
|
||
let toml = books_toml(&dir, "0.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let e = m.draft(
|
||
"2026-05-01",
|
||
"A penny",
|
||
&[("6000", "debit", "0.01"), ("1000", "credit", "0.01")],
|
||
);
|
||
let err = m.post(e).err_text();
|
||
assert!(err.contains("receipt_required"), "{err}");
|
||
m.attach(Some(e), b"penny receipt");
|
||
m.post(e).ok("with a receipt");
|
||
// Keep posted: the last receipt can't be unlinked from a covered entry.
|
||
let receipts = m.ok("books.list_receipts", json!({"entry_id": e}));
|
||
let att = receipts["receipts"][0]["attachment_id"].clone();
|
||
let err = m.refuse(
|
||
"books.unlink_receipt",
|
||
json!({"attachment_id": att, "reason": "try"}),
|
||
);
|
||
assert!(err.contains("receipt_required"), "{err}");
|
||
}
|
||
|
||
#[test]
|
||
fn inv5_splitting_does_not_dodge_the_threshold() {
|
||
let dir = test_dir("inv5-split");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let a = m.draft(
|
||
"2026-05-03",
|
||
"Office supplies",
|
||
&[("6999", "debit", "20.00"), ("1000", "credit", "20.00")],
|
||
);
|
||
m.post(a).ok("first half posts");
|
||
// Same day, same description (case and surrounding whitespace aside),
|
||
// same debit account: grouped, 40.00 > 25.00.
|
||
let b = m.draft(
|
||
"2026-05-03",
|
||
" OFFICE supplies ",
|
||
&[("6999", "debit", "20.00"), ("1000", "credit", "20.00")],
|
||
);
|
||
let err = m.post(b).err_text();
|
||
assert!(err.contains("receipt_required"), "{err}");
|
||
// Not the signature: another day, or another debit account.
|
||
let c = m.draft(
|
||
"2026-05-04",
|
||
"Office supplies",
|
||
&[("6999", "debit", "20.00"), ("1000", "credit", "20.00")],
|
||
);
|
||
m.post(c).ok("another day");
|
||
let d = m.draft(
|
||
"2026-05-03",
|
||
"Office supplies",
|
||
&[("6000", "debit", "20.00"), ("1000", "credit", "20.00")],
|
||
);
|
||
m.post(d).ok("another debit account");
|
||
// A receipt clears it.
|
||
m.attach(Some(b), b"supplies receipt");
|
||
m.post(b).ok("split with a receipt");
|
||
}
|
||
|
||
#[test]
|
||
fn inv5_reversals_are_exempt() {
|
||
let dir = test_dir("inv5-rev");
|
||
let toml = books_toml(&dir, "0.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let e = m.draft(
|
||
"2026-05-01",
|
||
"Big",
|
||
&[("6000", "debit", "500.00"), ("1000", "credit", "500.00")],
|
||
);
|
||
m.attach(Some(e), b"big receipt");
|
||
m.post(e).ok("post");
|
||
m.ok(
|
||
"books.reverse_entry",
|
||
json!({"entry_id": e, "date": "2026-05-02", "description": "undo", "confirmed": true}),
|
||
);
|
||
}
|
||
|
||
/// Policy invariant 4: a threshold that isn't a decimal, or is below
|
||
/// zero, is refused at startup.
|
||
#[test]
|
||
fn inv5_bad_threshold_refused_at_startup() {
|
||
for bad in ["-1", "abc", "-0.01", "", "1,000", "ten"] {
|
||
let dir = test_dir("inv5-startup");
|
||
let toml = books_toml(&dir, bad, "");
|
||
let mut child = spawn_child(&dir, &toml);
|
||
let mut stdin = child.stdin.take().unwrap();
|
||
let stdout = child.stdout.take().unwrap();
|
||
let init = json!({"jsonrpc": "2.0", "id": 1, "method": "initialize", "params": {
|
||
"protocolVersion": "2025-06-18", "capabilities": {},
|
||
"clientInfo": {"name": "spec-test", "version": "0.1.0"}}});
|
||
let _ = writeln!(stdin, "{init}");
|
||
let _ = stdin.flush();
|
||
let (tx, rx) = channel();
|
||
std::thread::spawn(move || {
|
||
let mut line = String::new();
|
||
let _ = BufReader::new(stdout).read_line(&mut line);
|
||
let _ = tx.send(line);
|
||
});
|
||
let line = rx.recv_timeout(TIMEOUT).unwrap_or_default();
|
||
let answered = serde_json::from_str::<Value>(&line)
|
||
.ok()
|
||
.is_some_and(|v| v.get("result").is_some());
|
||
drop(stdin);
|
||
let status = wait_with_timeout(&mut child, TIMEOUT);
|
||
assert!(
|
||
!answered,
|
||
"threshold {bad:?}: server completed initialize: {line}"
|
||
);
|
||
assert!(
|
||
status.is_some_and(|s| !s.success()),
|
||
"threshold {bad:?}: server did not exit nonzero ({status:?})"
|
||
);
|
||
}
|
||
}
|
||
|
||
fn wait_with_timeout(child: &mut Child, timeout: Duration) -> Option<std::process::ExitStatus> {
|
||
let start = std::time::Instant::now();
|
||
loop {
|
||
if let Ok(Some(s)) = child.try_wait() {
|
||
return Some(s);
|
||
}
|
||
if start.elapsed() > timeout {
|
||
let _ = child.kill();
|
||
let _ = child.wait();
|
||
return None;
|
||
}
|
||
std::thread::sleep(Duration::from_millis(20));
|
||
}
|
||
}
|
||
|
||
// --------------------------------------- invariant 6: ambiguous references
|
||
|
||
#[test]
|
||
fn inv6_ambiguous_account_reference_refused() {
|
||
let dir = test_dir("inv6-acct");
|
||
let toml = books_toml(&dir, "1000000.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
// Account "2" first, then others; find one whose id is 2 and whose
|
||
// code is not "2".
|
||
let ids = m.accounts(&[
|
||
("2", "Two by code", "expense"),
|
||
("1000", "Bank", "asset"),
|
||
("6000", "Rent", "expense"),
|
||
]);
|
||
assert!(
|
||
ids.contains(&2) && ids[0] != 2,
|
||
"need an account with id 2 that is not code \"2\": ids {ids:?}"
|
||
);
|
||
let e = m.draft("2026-06-01", "ambiguity", &[]);
|
||
let err = m.refuse(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "2", "side": "debit", "amount": "10.00"}),
|
||
);
|
||
assert!(!err.is_empty());
|
||
m.refuse(
|
||
"books.reconcile",
|
||
json!({"account": "2", "statement_date": "2026-06-30", "statement_balance": "0.00"}),
|
||
);
|
||
m.refuse(
|
||
"books.set_tax_category",
|
||
json!({"account": "2", "category": null}),
|
||
);
|
||
m.refuse(
|
||
"books.renumber_account",
|
||
json!({"account": "2", "code": "6100"}),
|
||
);
|
||
// Unique references work: a code nobody's id, an id nobody's code.
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "6000", "side": "debit", "amount": "10.00"}),
|
||
);
|
||
let unique_id = ids
|
||
.iter()
|
||
.copied()
|
||
.find(|&i| i != 2 && !["2", "1000", "6000"].contains(&i.to_string().as_str()))
|
||
.expect("an id that is no account's code");
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": unique_id.to_string(), "side": "credit", "amount": "10.00"}),
|
||
);
|
||
let entry = m.ok("books.get_entry", json!({"entry_id": e}));
|
||
assert_eq!(entry["lines"].as_array().unwrap().len(), 2, "{entry}");
|
||
}
|
||
|
||
#[test]
|
||
fn inv6_ambiguous_vendor_reference_refused() {
|
||
let dir = test_dir("inv6-vendor");
|
||
let toml = books_toml(&dir, "1000000.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let acme = m.ok("books.add_vendor", json!({"name": "Acme"}))["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
// A vendor literally named after Acme's id.
|
||
let named = m.ok("books.add_vendor", json!({"name": acme.to_string()}))["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
assert_ne!(acme, named);
|
||
let amb = acme.to_string();
|
||
m.refuse(
|
||
"books.set_vendor_1099",
|
||
json!({"vendor": amb, "form_1099": "nec", "tin_on_file": false}),
|
||
);
|
||
m.refuse(
|
||
"books.draft_entry",
|
||
json!({"date": "2026-06-01", "description": "x", "vendor": amb}),
|
||
);
|
||
let e = m.draft("2026-06-01", "tag me", &[]);
|
||
m.refuse(
|
||
"books.set_entry_vendor",
|
||
json!({"entry_id": e, "vendor": amb}),
|
||
);
|
||
// Unique: the name "Acme", and the second vendor's id (no vendor has
|
||
// that name).
|
||
m.ok(
|
||
"books.set_vendor_1099",
|
||
json!({"vendor": "Acme", "form_1099": "nec", "tin_on_file": false}),
|
||
);
|
||
let out = m.ok(
|
||
"books.set_entry_vendor",
|
||
json!({"entry_id": e, "vendor": named.to_string()}),
|
||
);
|
||
assert!(out.get("vendor").is_some(), "{out}");
|
||
}
|
||
|
||
#[test]
|
||
fn inv6_ambiguous_class_reference_refused() {
|
||
let dir = test_dir("inv6-class");
|
||
let toml = books_toml(&dir, "1000000.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let alpha = m.ok("books.add_class", json!({"name": "Alpha"}))["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
let named = m.ok("books.add_class", json!({"name": alpha.to_string()}))["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
assert_ne!(alpha, named);
|
||
let e = m.draft("2026-06-01", "classy", &[]);
|
||
// add_line with an ambiguous class is refused too, but writes the
|
||
// line first: see add_line_bad_class_leaves_journal_unchanged.
|
||
m.refuse("books.profit_and_loss", json!({"class": alpha.to_string()}));
|
||
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "6000", "side": "debit", "amount": "10.00", "class": "Alpha"}),
|
||
);
|
||
m.ok(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "1000", "side": "credit", "amount": "10.00",
|
||
"class": named.to_string()}),
|
||
);
|
||
m.ok("books.profit_and_loss", json!({"class": "Alpha"}));
|
||
}
|
||
|
||
/// Invariant 2: a refused add_line leaves the journal unchanged, here when
|
||
/// the line's class doesn't resolve (unknown, or ambiguous per invariant
|
||
/// 6).
|
||
#[test]
|
||
fn add_line_bad_class_leaves_journal_unchanged() {
|
||
let dir = test_dir("bug-class");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
m.ok("books.add_class", json!({"name": "Alpha"}));
|
||
m.ok("books.add_class", json!({"name": "1"}));
|
||
let e = m.draft("2026-06-01", "classy", &[]);
|
||
for class in ["Nope", "99", "1"] {
|
||
// Mcp::tool asserts the journal is unchanged on refusal.
|
||
m.refuse(
|
||
"books.add_line",
|
||
json!({"entry_id": e, "account": "6000", "side": "debit", "amount": "10.00",
|
||
"class": class}),
|
||
);
|
||
}
|
||
let entry = m.ok("books.get_entry", json!({"entry_id": e}));
|
||
assert_eq!(entry["lines"], json!([]), "{entry}");
|
||
}
|
||
|
||
/// Invariant 6 and "validate all tool inputs": profit_and_loss_by_class
|
||
/// declares a `class` filter; an unknown or ambiguous class must be
|
||
/// refused, not ignored.
|
||
#[test]
|
||
fn profit_and_loss_by_class_validates_class() {
|
||
let dir = test_dir("bug-pnl-class");
|
||
let toml = books_toml(&dir, "1000000.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
m.ok("books.add_class", json!({"name": "Alpha"}));
|
||
m.ok("books.add_class", json!({"name": "1"}));
|
||
m.refuse("books.profit_and_loss_by_class", json!({"class": "Nope"}));
|
||
m.refuse("books.profit_and_loss_by_class", json!({"class": "1"}));
|
||
}
|
||
|
||
/// Invariant 2 for other class-taking tools: a payout with an unknown
|
||
/// class is refused and creates no draft.
|
||
#[test]
|
||
fn payout_bad_class_leaves_journal_unchanged() {
|
||
let dir = test_dir("payout-class");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
m.refuse(
|
||
"books.record_payout",
|
||
json!({"date": "2026-03-31", "description": "p", "deposit_account": "1000",
|
||
"deposit": "85.00", "revenue": [{"account": "4000", "amount": "100.00", "class": "Nope"}],
|
||
"fees": [{"account": "6999", "amount": "15.00", "class": "Nope"}]}),
|
||
);
|
||
}
|
||
|
||
// --------------------------------------------- JSON-RPC 2.0 conformance
|
||
|
||
/// mcp-tools.md: "Unknown tools" are protocol errors (JSON-RPC errors),
|
||
/// not isError results.
|
||
#[test]
|
||
fn jsonrpc_unknown_tool_is_a_protocol_error() {
|
||
let dir = test_dir("rpc-tool");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
let out = m.tool("books.no_such_tool", json!({}));
|
||
assert!(
|
||
matches!(out, Out::RpcErr(_)),
|
||
"unknown tool should be a JSON-RPC error, got {out:?}"
|
||
);
|
||
m.ok("books.chart", json!({}));
|
||
}
|
||
|
||
/// jsonrpc-2.0.md §5.1: unknown method → -32601.
|
||
#[test]
|
||
fn jsonrpc_unknown_method_is_32601() {
|
||
let dir = test_dir("rpc-method");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
let resp = m.rpc("books/does_not_exist", json!({}));
|
||
assert_eq!(resp["error"]["code"], -32601, "{resp}");
|
||
m.ok("books.chart", json!({}));
|
||
}
|
||
|
||
/// jsonrpc-2.0.md §5 and §5.1: invalid JSON → a response with code
|
||
/// -32700 and id null; the server keeps serving.
|
||
#[test]
|
||
fn jsonrpc_parse_error_is_32700_with_null_id() {
|
||
let dir = test_dir("rpc-parse");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.send_line("{\"jsonrpc\": \"2.0\", \"id\": 99, \"method\": ");
|
||
let resp = m.recv(Duration::from_secs(5));
|
||
let resp = resp.expect("no response to a malformed JSON line");
|
||
check_response_shape(&resp);
|
||
assert_eq!(resp["error"]["code"], -32700, "{resp}");
|
||
assert_eq!(resp["id"], Value::Null, "{resp}");
|
||
}
|
||
|
||
/// jsonrpc-2.0.md §5: `id` is REQUIRED in every response; when it can't
|
||
/// be detected (Invalid Request) it MUST be null, else the request's.
|
||
#[test]
|
||
fn jsonrpc_invalid_request_response_has_id() {
|
||
let dir = test_dir("rpc-invalid");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
for (junk, id) in [
|
||
("[]", Value::Null),
|
||
("{\"jsonrpc\": \"2.0\", \"id\": 98}", json!(98)),
|
||
] {
|
||
m.send_line(junk);
|
||
let resp = m.recv(Duration::from_secs(5)).expect("no response");
|
||
assert_eq!(resp["error"]["code"], -32600, "{resp}");
|
||
assert!(
|
||
resp.get("id").is_some(),
|
||
"{junk}: response has no id: {resp}"
|
||
);
|
||
// A detectable id should be echoed; Null when it isn't.
|
||
assert!(resp["id"] == id || resp["id"].is_null(), "{junk}: {resp}");
|
||
}
|
||
}
|
||
|
||
/// Whatever the server does with a malformed line, it keeps serving
|
||
/// (invariant 7).
|
||
#[test]
|
||
fn jsonrpc_server_survives_malformed_input() {
|
||
let dir = test_dir("rpc-survive");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
for junk in [
|
||
"{\"jsonrpc\": \"2.0\", \"id\": 99, \"method\": ",
|
||
"not json at all",
|
||
"[]",
|
||
"{\"jsonrpc\": \"2.0\", \"id\": 98}",
|
||
] {
|
||
m.send_line(junk);
|
||
// Drain anything it answered with, without requiring an answer
|
||
// (the missing id is jsonrpc_invalid_request_response_has_id).
|
||
while let Some(v) = m.recv(Duration::from_millis(300)) {
|
||
assert_eq!(v["jsonrpc"], "2.0", "{v}");
|
||
assert!(v.get("result").is_some() ^ v.get("error").is_some(), "{v}");
|
||
}
|
||
m.ok("books.chart", json!({}));
|
||
}
|
||
}
|
||
|
||
/// Missing or mistyped arguments: mcp-tools.md lists "invalid arguments"
|
||
/// as protocol errors and "invalid input data" as tool errors, so either
|
||
/// is accepted; the books must not change and the server must survive.
|
||
#[test]
|
||
fn jsonrpc_invalid_arguments_refused_cleanly() {
|
||
let dir = test_dir("rpc-args");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
m.refuse("books.add_line", json!({"entry_id": 1}));
|
||
m.refuse("books.post_entry", json!({"entry_id": "one"}));
|
||
m.refuse(
|
||
"books.draft_entry",
|
||
json!({"date": 20260101, "description": "x"}),
|
||
);
|
||
m.refuse("books.add_account", json!({}));
|
||
m.ok("books.chart", json!({}));
|
||
}
|
||
|
||
#[test]
|
||
fn helpers_self_check() {
|
||
for ok in ["0.00", "-12.34", "1.234"] {
|
||
assert!(is_money_out(ok), "{ok}");
|
||
}
|
||
for bad in ["0", "1.2", "1e3", "", "-", ".50", "1,000.00"] {
|
||
assert!(!is_money_out(bad), "{bad}");
|
||
}
|
||
for ok in ["0", "5", "-5", "5.00", "007.5"] {
|
||
assert!(is_amount_in(ok), "{ok}");
|
||
}
|
||
for bad in REFUSED_AMOUNTS {
|
||
assert!(!is_amount_in(bad), "{bad}");
|
||
}
|
||
assert_eq!(canon("007.50"), "7.5");
|
||
assert_eq!(canon("5.00"), "5");
|
||
assert_eq!(canon("-0.00"), "0");
|
||
assert_eq!(b64(b"abcd"), "YWJjZA==");
|
||
let mut bad = Vec::new();
|
||
money_walk(
|
||
&json!({"total": 5, "lines": [{"amount": "1.5"}], "id": 3}),
|
||
"$",
|
||
None,
|
||
&mut bad,
|
||
);
|
||
assert_eq!(bad.len(), 2, "{bad:?}");
|
||
}
|
||
|
||
// ------------------------------------- settings reload (settings.rs spec)
|
||
|
||
/// INVARIANT 1: a call after an edit sees it, with no restart, and two
|
||
/// same-size edits in a row are both seen (compared by content).
|
||
#[test]
|
||
fn settings_reload_on_the_next_call() {
|
||
let dir = test_dir("reload");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
let s = m.ok("books.settings", json!({}));
|
||
assert_eq!(s["company"], "Spec Co");
|
||
assert_eq!(s["loads"], 1);
|
||
for name in ["Aaaa Co", "Bbbb Co"] {
|
||
let text = std::fs::read_to_string(&toml)
|
||
.unwrap()
|
||
.replace("Spec Co", name)
|
||
.replace("Aaaa Co", name);
|
||
std::fs::write(&toml, text).unwrap();
|
||
let s = m.ok("books.settings", json!({}));
|
||
assert_eq!(s["company"], name);
|
||
assert_eq!(s["reload_error"], Value::Null);
|
||
}
|
||
assert_eq!(m.ok("books.settings", json!({}))["loads"], 3);
|
||
}
|
||
|
||
/// INVARIANT 1, enforced: a lowered receipt threshold refuses the next
|
||
/// post without a receipt.
|
||
#[test]
|
||
fn a_reloaded_threshold_is_enforced() {
|
||
let dir = test_dir("reload-threshold");
|
||
let toml = books_toml(&dir, "1000.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let first = m.draft(
|
||
"2026-03-01",
|
||
"small",
|
||
&[("6000", "debit", "1.00"), ("1000", "credit", "1.00")],
|
||
);
|
||
m.post(first).ok("under the threshold");
|
||
let text = std::fs::read_to_string(&toml)
|
||
.unwrap()
|
||
.replace("\"1000.00\"", "\"0.00\"");
|
||
std::fs::write(&toml, text).unwrap();
|
||
let second = m.draft(
|
||
"2026-03-02",
|
||
"small",
|
||
&[("6000", "debit", "1.00"), ("1000", "credit", "1.00")],
|
||
);
|
||
let out = m.post(second);
|
||
assert!(out.err_text().contains("receipt_required"), "{out:?}");
|
||
assert_eq!(m.entry_status(second), "draft");
|
||
}
|
||
|
||
/// INVARIANTS 2 and 3: a broken edit, and a named file gone missing, keep
|
||
/// the last good settings and say why; fixing it loads again.
|
||
#[test]
|
||
fn a_broken_edit_keeps_the_last_good_settings() {
|
||
let dir = test_dir("reload-broken");
|
||
let toml = books_toml(&dir, "25.00", "");
|
||
let good = std::fs::read_to_string(&toml).unwrap();
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
std::fs::write(
|
||
&toml,
|
||
good.replace("Spec Co", "Next Co")
|
||
.replace("[books]", "[books"),
|
||
)
|
||
.unwrap();
|
||
let s = m.ok("books.settings", json!({}));
|
||
assert_eq!(s["company"], "Spec Co");
|
||
assert!(s["reload_error"].is_string(), "{s}");
|
||
let digest = m.ok("books.digest", json!({"since": "2026-01-01"}));
|
||
assert!(
|
||
digest["settings_problems"][0]
|
||
.as_str()
|
||
.unwrap()
|
||
.contains("didn't load"),
|
||
"{digest}"
|
||
);
|
||
std::fs::remove_file(&toml).unwrap();
|
||
let s = m.ok("books.settings", json!({}));
|
||
assert!(
|
||
s["reload_error"].is_string(),
|
||
"a named file gone missing: {s}"
|
||
);
|
||
assert_eq!(s["books_toml_exists"], false);
|
||
assert_eq!(s["company"], "Spec Co");
|
||
std::fs::write(&toml, good.replace("Spec Co", "Fixed Co")).unwrap();
|
||
let s = m.ok("books.settings", json!({}));
|
||
assert_eq!(s["company"], "Fixed Co");
|
||
assert_eq!(s["reload_error"], Value::Null);
|
||
assert_eq!(s["loads"], 2);
|
||
}
|
||
|
||
/// books.settings and the digest list settings that disagree with the
|
||
/// chart, each naming the setting.
|
||
#[test]
|
||
fn settings_that_disagree_with_the_chart_are_problems() {
|
||
let dir = test_dir("problems");
|
||
let toml = books_toml(
|
||
&dir,
|
||
"25.00",
|
||
"financing_accounts = [\"6000\"]\nclose_into = \"3000\"\n",
|
||
);
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(BASE_CHART);
|
||
let s = m.ok("books.settings", json!({}));
|
||
let problems: Vec<String> = s["problems"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.map(|p| p.as_str().unwrap().to_string())
|
||
.collect();
|
||
assert_eq!(problems.len(), 1, "{problems:?}");
|
||
assert!(problems[0].contains("[books] financing_accounts names 6000"));
|
||
let text = std::fs::read_to_string(&toml)
|
||
.unwrap()
|
||
.replace("cash_accounts = [\"1000\"]", "cash_accounts = [\"1010\"]")
|
||
.replace("close_into = \"3000\"", "close_into = \"4000\"");
|
||
std::fs::write(&toml, text).unwrap();
|
||
let digest = m.ok("books.digest", json!({"since": "2026-01-01"}));
|
||
let problems = digest["settings_problems"].to_string();
|
||
assert!(
|
||
problems.contains("[books] cash_accounts names 1010, which isn't in the chart"),
|
||
"{problems}"
|
||
);
|
||
assert!(
|
||
problems.contains("[books] close_into names 4000"),
|
||
"{problems}"
|
||
);
|
||
assert!(
|
||
problems.contains("[books] financing_accounts names 6000"),
|
||
"{problems}"
|
||
);
|
||
}
|
||
|
||
/// books.assign_role steers what an invoice posts, and books.roles shows
|
||
/// it; a refusal names the reason.
|
||
#[test]
|
||
fn assigned_roles_steer_invoices() {
|
||
let dir = test_dir("roles");
|
||
let toml = books_toml(&dir, "1000000.00", "");
|
||
let mut m = Mcp::start(&dir, &toml);
|
||
m.accounts(&[
|
||
("1000", "Bank", "asset"),
|
||
("1110", "Trade Receivables", "asset"),
|
||
("4100", "Consulting Income", "revenue"),
|
||
("6000", "Rent", "expense"),
|
||
]);
|
||
let roles = m.ok("books.roles", json!({}));
|
||
let receivables = roles["roles"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.find(|r| r["role"] == "receivables")
|
||
.unwrap()
|
||
.clone();
|
||
assert_eq!(receivables["default_code"], "1200");
|
||
assert_eq!(receivables["assigned"], false);
|
||
assert_eq!(receivables["account_code"], Value::Null);
|
||
let err = m.refuse(
|
||
"books.assign_role",
|
||
json!({"role": "receivables", "account": "6000"}),
|
||
);
|
||
assert!(err.contains("accounts receivable"), "{err}");
|
||
let err = m.refuse(
|
||
"books.assign_role",
|
||
json!({"role": "receivable", "account": "1110"}),
|
||
);
|
||
assert!(err.contains("no role"), "{err}");
|
||
m.ok(
|
||
"books.assign_role",
|
||
json!({"role": "receivables", "account": "1110"}),
|
||
);
|
||
let roles = m.ok(
|
||
"books.assign_role",
|
||
json!({"role": "revenue", "account": "4100"}),
|
||
);
|
||
let revenue = roles["roles"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.find(|r| r["role"] == "revenue")
|
||
.unwrap()
|
||
.clone();
|
||
assert_eq!(revenue["assigned"], true);
|
||
assert_eq!(revenue["account_code"], "4100");
|
||
let customer = m.ok("books.add_customer", json!({"name": "Client"}))["id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
m.ok(
|
||
"books.create_invoice",
|
||
json!({"party_id": customer, "date": "2026-02-01", "due_date": "2026-03-01",
|
||
"lines": [{"description": "Consulting", "amount": "500.00"}]}),
|
||
);
|
||
let tb = m.ok("books.trial_balance", json!({})).to_string();
|
||
assert!(tb.contains("1110") && tb.contains("4100"), "{tb}");
|
||
assert!(!tb.contains("\"1200\"") && !tb.contains("\"4000\""), "{tb}");
|
||
}
|