swaitsandClaude Opus 5.5
f858fb4cfe
wanderbooks is a general MCP-first accounting application: every business needs its accounts mapped to where they land on its income tax return, and its CPA needs book-to-tax differences surfaced, not hidden. - ledger_core::tax: a catalog of stable categories (gross_receipts, commissions_fees, meals, guaranteed_payments, officer_compensation, nondeductible, ...) with kind (income, cost of goods, deduction), the returns each appears on (Schedule C, 1065, 1120-S, 1120), a default deductible percent (meals 50, nondeductible 0), and guidance. Keys, not line numbers: form lines move from year to year. - Accounts carry tax_category and an optional deductible_percent override, validated against the account type (and the return, at the MCP layer), journaled as account.tax_set, replayed, projected (schema v6). - tax_summary(start, end, form): the P&L grouped by category, book and deductible amounts (half away from zero to the cent), contra income (refunds) reducing receipts, and every account still uncategorized. - MCP: books.tax_categories (filtered to the configured return), books.set_tax_category, a tax_summary report in every format and in the CPA package, chart output with categories, and a fifth tax_category column in chart CSV imports, validated before anything is created. [company] tax_form, or derived from tax_classification. Scope stays book basis: no tax depreciation, basis, or filing. Tests: a hand-computed quarter (50% meals 333.33 -> 166.67, penalties at 0%, refunds as negative receipts, guaranteed payments, one uncategorized account; book net 5,276.67 vs tax 5,483.33); overrides; category/account /return validation; form parsing and derivation; CSV parsing; stdio: filtered catalog, mapping, refusal, summary, all-or-nothing import. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01MtYEaR6M6Ybdhm6X98BWNu
1123 lines
41 KiB
Rust
1123 lines
41 KiB
Rust
//! End-to-end smoke test: drive the real `ledger-mcp` binary over stdio
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//! with raw JSON-RPC, exercising draft → preview → receipt policy → post.
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use serde_json::{Value, json};
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use std::io::{BufRead, BufReader, Write};
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use std::process::{Child, ChildStdin, Command, Stdio};
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struct Mcp {
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stdin: ChildStdin,
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stdout: BufReader<std::process::ChildStdout>,
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next_id: u64,
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#[allow(dead_code)]
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child: Child,
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}
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impl Mcp {
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fn spawn(data_dir: &std::path::Path) -> Self {
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Self::spawn_with(data_dir, &[])
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}
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fn spawn_with(data_dir: &std::path::Path, extra: &[&std::ffi::OsStr]) -> Self {
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let bin = env!("CARGO_BIN_EXE_ledger-mcp");
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let mut child = Command::new(bin)
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.arg("--data-dir")
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.arg(data_dir)
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.args(extra)
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.stdin(Stdio::piped())
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.stdout(Stdio::piped())
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.stderr(Stdio::null())
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.spawn()
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.expect("spawn ledger-mcp");
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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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Self {
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stdin,
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stdout,
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next_id: 1,
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child,
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}
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}
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fn request(&mut self, method: &str, params: Value) -> Value {
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let id = self.next_id;
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self.next_id += 1;
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let msg = json!({"jsonrpc": "2.0", "id": id, "method": method, "params": params});
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writeln!(self.stdin, "{msg}").unwrap();
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self.stdin.flush().unwrap();
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let mut line = String::new();
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self.stdout
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.read_line(&mut line)
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.expect("read response line");
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let resp: Value = serde_json::from_str(&line).expect("parse response");
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assert_eq!(resp["id"], id, "id mismatch in {resp}");
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assert!(
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resp.get("error").is_none(),
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"JSON-RPC error for {method}: {}",
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resp["error"]
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);
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resp
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}
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fn request_raw(&mut self, method: &str, params: Value) -> Value {
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let id = self.next_id;
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self.next_id += 1;
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let msg = json!({"jsonrpc": "2.0", "id": id, "method": method, "params": params});
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writeln!(self.stdin, "{msg}").unwrap();
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self.stdin.flush().unwrap();
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let mut line = String::new();
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self.stdout
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.read_line(&mut line)
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.expect("read response line");
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let resp: Value = serde_json::from_str(&line).expect("parse response");
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assert_eq!(resp["id"], id, "id mismatch in {resp}");
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resp
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}
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fn notify(&mut self, method: &str) {
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let msg = json!({"jsonrpc": "2.0", "method": method, "params": {}});
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writeln!(self.stdin, "{msg}").unwrap();
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self.stdin.flush().unwrap();
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}
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/// Call a tool; panic on tool error. Returns structuredContent.
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fn call(&mut self, tool: &str, args: Value) -> Value {
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let resp = self.request("tools/call", json!({"name": tool, "arguments": args}));
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let result = &resp["result"];
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assert_ne!(
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result.get("isError"),
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Some(&json!(true)),
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"tool {tool} returned an error: {}",
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result["content"]
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);
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result.get("structuredContent").cloned().unwrap_or_else(|| {
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let text = result["content"][0]["text"].as_str().unwrap();
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serde_json::from_str(text).unwrap()
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})
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}
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/// Call a tool expecting an error; returns the error text.
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fn call_err(&mut self, tool: &str, args: Value) -> String {
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let resp = self.request("tools/call", json!({"name": tool, "arguments": args}));
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let result = &resp["result"];
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assert_eq!(
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result.get("isError"),
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Some(&json!(true)),
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"expected {tool} to fail, got {result}"
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);
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result["content"][0]["text"].as_str().unwrap().to_string()
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}
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}
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fn test_dir(name: &str) -> std::path::PathBuf {
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let dir = std::env::temp_dir().join(format!("ledger-mcp-test-{}-{name}", 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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#[test]
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fn mcp_end_to_end_over_stdio() {
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let dir = test_dir("main");
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let mut mcp = Mcp::spawn(&dir);
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// Initialize: the server identifies itself and delivers the contract.
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let init = mcp.request(
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"initialize",
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json!({
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"protocolVersion": "2025-06-18",
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"capabilities": {},
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"clientInfo": {"name": "smoke-test", "version": "0.1.0"},
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}),
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);
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assert_eq!(init["result"]["serverInfo"]["name"], "wanderbooks");
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let instructions = init["result"]["instructions"].as_str().unwrap();
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assert!(instructions.contains("bookkeeping agent"));
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assert!(instructions.contains("decimal strings"));
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mcp.notify("notifications/initialized");
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// Tool listing: 23 narrow tools, chart is read-only.
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let list = mcp.request("tools/list", json!({}));
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let tools = list["result"]["tools"].as_array().unwrap();
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assert_eq!(tools.len(), 52, "expected 52 tools, got {}", tools.len());
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let chart = tools.iter().find(|t| t["name"] == "books.chart").unwrap();
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assert_eq!(chart["annotations"]["readOnlyHint"], true);
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assert!(
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chart["description"]
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.as_str()
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.unwrap()
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.contains("chart of accounts")
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);
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// Fresh books: empty chart.
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let chart_out = mcp.call("books.chart", json!({}));
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assert_eq!(chart_out["accounts"].as_array().unwrap().len(), 0);
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assert_eq!(chart_out["base_currency"], "USD");
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// Build a chart.
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for (code, name, typ) in [
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("1000", "Cash", "asset"),
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("3000", "Owner's Equity", "equity"),
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("4000", "Service Revenue", "revenue"),
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("6000", "Rent Expense", "expense"),
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] {
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let out = mcp.call(
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"books.add_account",
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json!({"code": code, "name": name, "account_type": typ}),
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);
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assert!(out["account_id"].as_u64().unwrap() > 0);
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}
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// Duplicate code is rejected.
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let err = mcp.call_err(
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"books.add_account",
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json!({"code": "1000", "name": "Cash 2", "account_type": "asset"}),
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);
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assert!(err.contains("already in use"), "got: {err}");
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// Draft → lines → preview.
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let draft = mcp.call(
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"books.draft_entry",
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json!({"date": "2026-01-15", "description": "January rent"}),
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);
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let entry_id = draft["entry_id"].as_u64().unwrap();
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mcp.call(
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"books.add_line",
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json!({"entry_id": entry_id, "account": "6000", "side": "debit", "amount": "100.00"}),
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);
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mcp.call(
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"books.add_line",
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json!({"entry_id": entry_id, "account": "1000", "side": "credit", "amount": "100.00"}),
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);
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let preview = mcp.call("books.post_entry", json!({"entry_id": entry_id}));
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assert_eq!(preview["status"], "preview");
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assert_eq!(preview["total"], "100.00");
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assert_eq!(preview["receipt_required"], true);
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assert_eq!(preview["receipt_missing"], true);
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assert_eq!(preview["lines"].as_array().unwrap().len(), 2);
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// Resulting balances: rent expense goes 0 → 100.
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let rent_line = preview["lines"]
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.as_array()
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.unwrap()
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.iter()
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.find(|l| l["code"] == "6000")
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.unwrap();
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assert_eq!(rent_line["balance_before"], "0.00");
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assert_eq!(rent_line["balance_after"], "100.00");
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// Confirmed post without a receipt is rejected: >$25, no receipt.
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let err = mcp.call_err(
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"books.post_entry",
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json!({"entry_id": entry_id, "confirmed": true}),
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);
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let err_json: serde_json::Value = serde_json::from_str(&err).unwrap();
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assert_eq!(err_json["code"], "receipt_required");
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assert_eq!(err_json["remedy_tool"], "books.attach_receipt");
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// Attach the receipt, then the confirmed post succeeds.
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let png = base64_like(b"fake-png-bytes");
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let attached = mcp.call(
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"books.attach_receipt",
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json!({
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"entry_id": entry_id,
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"file_name": "rent.png",
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"mime_type": "image/png",
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"content_base64": png,
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}),
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);
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assert_eq!(attached["deduplicated"], false);
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assert_eq!(attached["sha256"].as_str().unwrap().len(), 64);
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let posted = mcp.call(
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"books.post_entry",
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json!({"entry_id": entry_id, "confirmed": true}),
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);
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assert_eq!(posted["status"], "posted");
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assert_eq!(posted["receipt_missing"], false);
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// Reports agree.
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let tb = mcp.call("books.trial_balance", json!({}));
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assert_eq!(tb["balanced"], true);
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assert_eq!(tb["total_debits"], "100.00");
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assert_eq!(tb["total_credits"], "100.00");
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let pnl = mcp.call(
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"books.profit_and_loss",
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json!({"start": "2026-01-01", "end": "2026-01-31"}),
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);
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assert_eq!(pnl["expenses"], "100.00");
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assert_eq!(pnl["net_income"], "-100.00");
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let bs = mcp.call("books.balance_sheet", json!({"as_of": "2026-01-31"}));
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assert_eq!(bs["balanced"], true);
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// Digest and search see the entry.
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let digest = mcp.call("books.digest", json!({"since": "2026-01-01"}));
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assert_eq!(digest["entries"].as_array().unwrap().len(), 1);
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assert_eq!(digest["entries"][0]["receipt_missing"], false);
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let search = mcp.call("books.search_entries", json!({"text": "rent"}));
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assert_eq!(search["entries"].as_array().unwrap().len(), 1);
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assert_eq!(search["entries"][0]["receipt_count"], 1);
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// Export works.
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let export = mcp.call(
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"books.export",
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json!({"format": "csv", "report": "journal"}),
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);
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assert!(export["content"].as_str().unwrap().contains("January rent"));
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// Reversal: preview then post; the book still balances.
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let rev_preview = mcp.call(
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"books.reverse_entry",
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json!({"entry_id": entry_id, "date": "2026-01-16", "description": "Reverse rent"}),
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);
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assert_eq!(rev_preview["status"], "preview");
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let rev = mcp.call(
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"books.reverse_entry",
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json!({"entry_id": entry_id, "date": "2026-01-16", "description": "Reverse rent", "confirmed": true}),
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);
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assert_eq!(rev["status"], "posted");
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let tb2 = mcp.call("books.trial_balance", json!({}));
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assert_eq!(tb2["balanced"], true);
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assert_eq!(tb2["total_debits"], "0.00");
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}
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#[test]
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fn mcp_assets_end_to_end_over_stdio() {
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let dir = test_dir("assets");
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let mut mcp = Mcp::spawn(&dir);
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let init = mcp.request(
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"initialize",
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json!({
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"protocolVersion": "2025-06-18",
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"capabilities": {},
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"clientInfo": {"name": "smoke-test", "version": "0.1.0"},
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}),
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);
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assert_eq!(init["result"]["serverInfo"]["name"], "wanderbooks");
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mcp.notify("notifications/initialized");
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// Chart for the asset: cost, contra, expense, bank, gain.
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for (code, name, typ) in [
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("1500", "Equipment", "asset"),
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("1501", "Accumulated Depreciation", "asset"),
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("6100", "Depreciation Expense", "expense"),
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("1000", "Bank", "asset"),
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("4900", "Gain on Disposal", "revenue"),
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] {
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mcp.call(
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"books.add_account",
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json!({"code": code, "name": name, "account_type": typ}),
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);
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}
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// Register the van: 60,000, 60-month life, bought 2026-01-15.
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let reg = mcp.call(
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"books.register_asset",
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json!({
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"description": "Sprinter van",
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"purchase_date": "2026-01-15",
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"cost": "60000.00",
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"useful_life_months": 60,
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"cost_account": "1500",
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"accum_depr_account": "1501",
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"expense_account": "6100",
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}),
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);
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let asset_id = reg["asset_id"].as_u64().unwrap();
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// Schedule: 61 calendar months, lifetime total exactly 60,000.
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let sched = mcp.call("books.asset_schedule", json!({"asset_id": asset_id}));
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let lines = sched["schedule"].as_array().unwrap();
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assert_eq!(lines.len(), 61);
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assert_eq!(lines[0]["period"], "2026-01");
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assert_eq!(lines[0]["amount"], "548.39");
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assert_eq!(lines[60]["period"], "2031-01");
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let total: f64 = lines
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.iter()
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.map(|l| l["amount"].as_str().unwrap().parse::<f64>().unwrap())
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.sum();
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assert!((total - 60000.0).abs() < 0.005, "total was {total}");
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assert_eq!(sched["status"], "active");
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// List: one active asset.
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let list = mcp.call("books.list_assets", json!({}));
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assert_eq!(list["assets"].as_array().unwrap().len(), 1);
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assert_eq!(list["assets"][0]["status"], "active");
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// Run January: posts 548.39.
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let run1 = mcp.call(
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"books.run_depreciation",
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json!({"period": "2026-01", "asset_id": asset_id}),
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);
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assert_eq!(run1["runs"][0]["amount"], "548.39");
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assert_eq!(run1["runs"][0]["already_posted"], false);
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let entry_id = run1["runs"][0]["entry_id"].as_u64().unwrap();
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// Idempotent: second run returns the same entry.
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let run2 = mcp.call(
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"books.run_depreciation",
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json!({"period": "2026-01", "asset_id": asset_id}),
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);
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assert_eq!(run2["runs"][0]["already_posted"], true);
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assert_eq!(run2["runs"][0]["entry_id"], entry_id);
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// Run-all for February: picks up the van, posts a full 1,000.
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let run_all = mcp.call("books.run_depreciation", json!({"period": "2026-02"}));
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assert_eq!(run_all["runs"][0]["amount"], "1000.00");
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assert_eq!(run_all["skipped"].as_array().unwrap().len(), 0);
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// And again: already posted.
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let run_all2 = mcp.call("books.run_depreciation", json!({"period": "2026-02"}));
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assert_eq!(run_all2["runs"][0]["already_posted"], true);
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// Dispose preview: book value 60000 − 1548.39 = 58451.61;
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// proceeds 60000 → gain 1548.39. Receipt required.
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let preview = mcp.call(
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"books.dispose_asset",
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json!({
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"asset_id": asset_id,
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"date": "2026-02-28",
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"proceeds": "60000",
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"proceeds_account": "1000",
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"gain_loss_account": "4900",
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}),
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);
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assert_eq!(preview["status"], "preview");
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assert_eq!(preview["book_value"], "58451.61");
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assert_eq!(preview["gain_loss"], "1548.39");
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assert_eq!(preview["final_depreciation"], "0.00");
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assert_eq!(preview["receipt_required"], true);
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|
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// Confirmed without the bill of sale: rejected.
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let err = mcp.call_err(
|
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"books.dispose_asset",
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json!({
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"asset_id": asset_id,
|
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"date": "2026-02-28",
|
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"proceeds": "60000",
|
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"proceeds_account": "1000",
|
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"gain_loss_account": "4900",
|
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"confirmed": true,
|
||
}),
|
||
);
|
||
let err_json: serde_json::Value = serde_json::from_str(&err).unwrap();
|
||
assert_eq!(err_json["code"], "receipt_required");
|
||
assert_eq!(err_json["remedy_tool"], "books.file_document");
|
||
|
||
// File the bill of sale, then confirm with its attachment id.
|
||
let bill = mcp.call(
|
||
"books.file_document",
|
||
json!({
|
||
"category": "legal",
|
||
"file_name": "bill-of-sale.pdf",
|
||
"mime_type": "application/pdf",
|
||
"content_base64": base64_like(b"fake bill of sale"),
|
||
}),
|
||
);
|
||
let aid = bill["attachment_id"].as_u64().unwrap();
|
||
let posted = mcp.call(
|
||
"books.dispose_asset",
|
||
json!({
|
||
"asset_id": asset_id,
|
||
"date": "2026-02-28",
|
||
"proceeds": "60000",
|
||
"proceeds_account": "1000",
|
||
"gain_loss_account": "4900",
|
||
"confirmed": true,
|
||
"receipt_attachment_ids": [aid],
|
||
}),
|
||
);
|
||
assert_eq!(posted["status"], "posted");
|
||
assert_eq!(posted["gain_loss"], "1548.39");
|
||
|
||
// The bill of sale is linked to the disposal entry.
|
||
let receipts = mcp.call(
|
||
"books.list_receipts",
|
||
json!({"entry_id": posted["entry_id"]}),
|
||
);
|
||
assert_eq!(receipts["receipts"].as_array().unwrap().len(), 1);
|
||
|
||
// Asset is disposed; further depreciation is refused.
|
||
let list2 = mcp.call("books.list_assets", json!({}));
|
||
assert_eq!(list2["assets"][0]["status"], "disposed");
|
||
let err2 = mcp.call_err(
|
||
"books.run_depreciation",
|
||
json!({"period": "2026-03", "asset_id": asset_id}),
|
||
);
|
||
assert!(err2.contains("disposed"), "got: {err2}");
|
||
|
||
// The books still balance.
|
||
let tb = mcp.call("books.trial_balance", json!({}));
|
||
assert_eq!(tb["balanced"], true);
|
||
}
|
||
|
||
#[test]
|
||
fn mcp_receipt_policy_rejects_split_entries() {
|
||
let dir = test_dir("split");
|
||
let mut mcp = Mcp::spawn(&dir);
|
||
let init = mcp.request(
|
||
"initialize",
|
||
json!({
|
||
"protocolVersion": "2025-06-18",
|
||
"capabilities": {},
|
||
"clientInfo": {"name": "smoke-test", "version": "0.1.0"},
|
||
}),
|
||
);
|
||
assert_eq!(init["result"]["serverInfo"]["name"], "wanderbooks");
|
||
mcp.notify("notifications/initialized");
|
||
|
||
for (code, name, typ) in [("1000", "Cash", "asset"), ("6000", "Meals", "expense")] {
|
||
mcp.call(
|
||
"books.add_account",
|
||
json!({"code": code, "name": name, "account_type": typ}),
|
||
);
|
||
}
|
||
// Post a $25 entry (at the threshold, no receipt needed) and attach a
|
||
// receipt to it so the setup is clean.
|
||
let e1 = mcp.call(
|
||
"books.draft_entry",
|
||
json!({"date": "2026-03-01", "description": "Client dinner"}),
|
||
);
|
||
let id1 = e1["entry_id"].as_u64().unwrap();
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id1, "account": "6000", "side": "debit", "amount": "25.00"}),
|
||
);
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id1, "account": "1000", "side": "credit", "amount": "25.00"}),
|
||
);
|
||
let p1 = mcp.call(
|
||
"books.post_entry",
|
||
json!({"entry_id": id1, "confirmed": true}),
|
||
);
|
||
assert_eq!(p1["status"], "posted");
|
||
|
||
// A second $25 entry, same day, same description, same accounts: the
|
||
// group totals $50, so the policy bites.
|
||
let e2 = mcp.call(
|
||
"books.draft_entry",
|
||
json!({"date": "2026-03-01", "description": "Client dinner"}),
|
||
);
|
||
let id2 = e2["entry_id"].as_u64().unwrap();
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id2, "account": "6000", "side": "debit", "amount": "25.00"}),
|
||
);
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id2, "account": "1000", "side": "credit", "amount": "25.00"}),
|
||
);
|
||
let preview = mcp.call("books.post_entry", json!({"entry_id": id2}));
|
||
assert_eq!(preview["receipt_required"], true);
|
||
assert_eq!(preview["split_detected"].as_array().unwrap().len(), 1);
|
||
assert_eq!(preview["split_detected"][0], id1);
|
||
|
||
// Confirming without a receipt fails with the structured error.
|
||
let err = mcp.call_err(
|
||
"books.post_entry",
|
||
json!({"entry_id": id2, "confirmed": true}),
|
||
);
|
||
let err_json: serde_json::Value = serde_json::from_str(&err).unwrap();
|
||
assert_eq!(err_json["code"], "receipt_required");
|
||
assert_eq!(err_json["split_group"].as_array().unwrap().len(), 1);
|
||
|
||
// A different description is not a split: posts fine.
|
||
let e3 = mcp.call(
|
||
"books.draft_entry",
|
||
json!({"date": "2026-03-01", "description": "Taxi to airport"}),
|
||
);
|
||
let id3 = e3["entry_id"].as_u64().unwrap();
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id3, "account": "6000", "side": "debit", "amount": "25.00"}),
|
||
);
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id3, "account": "1000", "side": "credit", "amount": "25.00"}),
|
||
);
|
||
let p3 = mcp.call(
|
||
"books.post_entry",
|
||
json!({"entry_id": id3, "confirmed": true}),
|
||
);
|
||
assert_eq!(p3["status"], "posted");
|
||
}
|
||
|
||
#[test]
|
||
fn mcp_receipt_corrections_over_stdio() {
|
||
let dir = test_dir("receipt-corrections");
|
||
let mut mcp = Mcp::spawn(&dir);
|
||
mcp.request(
|
||
"initialize",
|
||
json!({
|
||
"protocolVersion": "2025-06-18",
|
||
"capabilities": {},
|
||
"clientInfo": {"name": "smoke-test", "version": "0.1.0"},
|
||
}),
|
||
);
|
||
mcp.notify("notifications/initialized");
|
||
for (code, name, typ) in [("1000", "Cash", "asset"), ("6000", "Software", "expense")] {
|
||
mcp.call(
|
||
"books.add_account",
|
||
json!({"code": code, "name": name, "account_type": typ}),
|
||
);
|
||
}
|
||
let post = |mcp: &mut Mcp, desc: &str, amount: &str, receipt: &[u8]| -> (u64, u64) {
|
||
let e = mcp.call(
|
||
"books.draft_entry",
|
||
json!({"date": "2026-04-01", "description": desc}),
|
||
);
|
||
let id = e["entry_id"].as_u64().unwrap();
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id, "account": "6000", "side": "debit", "amount": amount}),
|
||
);
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id, "account": "1000", "side": "credit", "amount": amount}),
|
||
);
|
||
let att = mcp.call(
|
||
"books.attach_receipt",
|
||
json!({"entry_id": id, "file_name": "receipt.eml", "mime_type": "message/rfc822",
|
||
"content_base64": base64_like(receipt)}),
|
||
);
|
||
let posted = mcp.call(
|
||
"books.post_entry",
|
||
json!({"entry_id": id, "confirmed": true}),
|
||
);
|
||
assert_eq!(posted["status"], "posted");
|
||
(id, att["attachment_id"].as_u64().unwrap())
|
||
};
|
||
|
||
// A $100 entry whose only receipt is an .eml.
|
||
let (big, eml) = post(&mut mcp, "Annual license", "100.00", b"eml-bytes");
|
||
|
||
// Unlinking its only receipt would break the policy: refused, with the remedy.
|
||
let err = mcp.call_err(
|
||
"books.unlink_receipt",
|
||
json!({"attachment_id": eml, "reason": "replacing with PDF"}),
|
||
);
|
||
let err_json: serde_json::Value = serde_json::from_str(&err).unwrap();
|
||
assert_eq!(err_json["code"], "receipt_required");
|
||
assert_eq!(err_json["entry_id"], big);
|
||
assert_eq!(err_json["remedy_tool"], "books.attach_receipt");
|
||
|
||
// Replace: attach the PDF first, then unlink the .eml.
|
||
let pdf = mcp.call(
|
||
"books.attach_receipt",
|
||
json!({"entry_id": big, "file_name": "receipt.pdf", "mime_type": "application/pdf",
|
||
"content_base64": base64_like(b"pdf-bytes")}),
|
||
)["attachment_id"]
|
||
.as_u64()
|
||
.unwrap();
|
||
let un = mcp.call(
|
||
"books.unlink_receipt",
|
||
json!({"attachment_id": eml, "reason": "replaced by the PDF render"}),
|
||
);
|
||
assert_eq!(un["entry_id"], big);
|
||
assert_eq!(un["remaining_receipts"], 1);
|
||
|
||
// A linked receipt can't be withdrawn; an unlinked one can, with a reason.
|
||
let err = mcp.call_err(
|
||
"books.withdraw_attachment",
|
||
json!({"attachment_id": pdf, "reason": "x"}),
|
||
);
|
||
assert!(err.contains("unlink it first"), "{err}");
|
||
let err = mcp.call_err(
|
||
"books.withdraw_attachment",
|
||
json!({"attachment_id": eml, "reason": " "}),
|
||
);
|
||
assert!(err.contains("reason"), "{err}");
|
||
mcp.call(
|
||
"books.withdraw_attachment",
|
||
json!({"attachment_id": eml, "reason": "file PDFs, not .eml"}),
|
||
);
|
||
|
||
// Listings hide the withdrawn .eml unless asked; the entry keeps the PDF.
|
||
let listed = mcp.call("books.list_receipts", json!({}));
|
||
let ids: Vec<u64> = listed["receipts"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.map(|r| r["attachment_id"].as_u64().unwrap())
|
||
.collect();
|
||
assert_eq!(ids, vec![pdf]);
|
||
let all = mcp.call("books.list_receipts", json!({"include_withdrawn": true}));
|
||
let gone = all["receipts"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.find(|r| r["attachment_id"] == eml)
|
||
.unwrap()
|
||
.clone();
|
||
assert_eq!(gone["withdrawn"], true);
|
||
assert_eq!(gone["withdrawn_reason"], "file PDFs, not .eml");
|
||
assert_eq!(gone["entry_id"], serde_json::Value::Null);
|
||
let entry = mcp.call("books.get_entry", json!({"entry_id": big}));
|
||
assert_eq!(entry["receipts"].as_array().unwrap().len(), 1);
|
||
assert_eq!(entry["receipts"][0]["attachment_id"], pdf);
|
||
// A withdrawn attachment can never be linked again.
|
||
let err = mcp.call_err(
|
||
"books.link_receipt",
|
||
json!({"attachment_id": eml, "entry_id": big}),
|
||
);
|
||
assert!(err.contains("withdrawn"), "{err}");
|
||
|
||
// Under the threshold, the last receipt may go.
|
||
let (small, small_eml) = post(&mut mcp, "Domain renewal", "10.00", b"small-eml");
|
||
let un = mcp.call(
|
||
"books.unlink_receipt",
|
||
json!({"attachment_id": small_eml, "reason": "wrong file"}),
|
||
);
|
||
assert_eq!(un["entry_id"], small);
|
||
assert_eq!(un["remaining_receipts"], 0);
|
||
|
||
// The books never moved.
|
||
let tb = mcp.call("books.trial_balance", json!({}));
|
||
assert_eq!(tb["balanced"], true);
|
||
assert_eq!(tb["total_debits"], "110.00");
|
||
}
|
||
|
||
#[test]
|
||
fn mcp_resources_over_stdio() {
|
||
let dir = test_dir("resources");
|
||
let mut mcp = Mcp::spawn(&dir);
|
||
let init = mcp.request(
|
||
"initialize",
|
||
json!({
|
||
"protocolVersion": "2025-06-18",
|
||
"capabilities": {},
|
||
"clientInfo": {"name": "smoke-test", "version": "0.1.0"},
|
||
}),
|
||
);
|
||
assert_eq!(init["result"]["serverInfo"]["name"], "wanderbooks");
|
||
// Resources are advertised.
|
||
assert!(!init["result"]["capabilities"]["resources"].is_null());
|
||
mcp.notify("notifications/initialized");
|
||
|
||
mcp.call(
|
||
"books.add_account",
|
||
json!({"code": "1000", "name": "Cash", "account_type": "asset"}),
|
||
);
|
||
|
||
// List resources.
|
||
let list = mcp.request("resources/list", json!({}));
|
||
let uris: Vec<&str> = list["result"]["resources"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.map(|r| r["uri"].as_str().unwrap())
|
||
.collect();
|
||
assert!(uris.contains(&"books://chart"));
|
||
assert!(uris.contains(&"books://reports/trial-balance"));
|
||
assert!(uris.contains(&"books://reports/balance-sheet"));
|
||
assert!(uris.contains(&"books://reports/profit-and-loss"));
|
||
assert!(uris.contains(&"books://digest"));
|
||
|
||
// Read the chart and trial balance as resources.
|
||
let chart = mcp.request("resources/read", json!({"uri": "books://chart"}));
|
||
let text = chart["result"]["contents"][0]["text"].as_str().unwrap();
|
||
let chart_json: serde_json::Value = serde_json::from_str(text).unwrap();
|
||
assert_eq!(chart_json["accounts"].as_array().unwrap().len(), 1);
|
||
|
||
let tb = mcp.request(
|
||
"resources/read",
|
||
json!({"uri": "books://reports/trial-balance"}),
|
||
);
|
||
let tb_text = tb["result"]["contents"][0]["text"].as_str().unwrap();
|
||
let tb_json: serde_json::Value = serde_json::from_str(tb_text).unwrap();
|
||
assert_eq!(tb_json["balanced"], true);
|
||
|
||
// Unknown resource → JSON-RPC error.
|
||
let resp = mcp.request_raw("resources/read", json!({"uri": "books://nope"}));
|
||
assert!(resp.get("error").is_some());
|
||
}
|
||
|
||
fn base64_like(bytes: &[u8]) -> String {
|
||
const ALPHABET: &[u8; 64] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
|
||
let mut out = String::new();
|
||
for chunk in bytes.chunks(3) {
|
||
let mut n: u32 = 0;
|
||
for (i, &b) in chunk.iter().enumerate() {
|
||
n |= (b as u32) << (16 - 8 * i);
|
||
}
|
||
let pad = 3 - chunk.len();
|
||
for i in 0..4 - pad {
|
||
out.push(ALPHABET[((n >> (18 - 6 * i)) & 63) as usize] as char);
|
||
}
|
||
for _ in 0..pad {
|
||
out.push('=');
|
||
}
|
||
}
|
||
out
|
||
}
|
||
|
||
#[test]
|
||
fn mcp_import_export_over_stdio() {
|
||
let dir = test_dir("import_export");
|
||
let mut mcp = Mcp::spawn(&dir);
|
||
mcp.request(
|
||
"initialize",
|
||
json!({
|
||
"protocolVersion": "2025-06-18",
|
||
"capabilities": {},
|
||
"clientInfo": {"name": "smoke-test", "version": "0.1.0"},
|
||
}),
|
||
);
|
||
mcp.notify("notifications/initialized");
|
||
|
||
let chart = mcp.call(
|
||
"books.import_chart_csv",
|
||
json!({"csv_text": "code,name,type,parent_code\n1000,Cash,asset,\n4000,Revenue,revenue,\n"}),
|
||
);
|
||
assert_eq!(chart["count"], 2);
|
||
|
||
let iif = mcp.call(
|
||
"books.export",
|
||
json!({"format": "iif", "report": "journal"}),
|
||
);
|
||
assert!(iif["content"].as_str().unwrap().contains("!TRNS"));
|
||
|
||
let xlsx = mcp.call(
|
||
"books.export",
|
||
json!({"format": "xlsx", "report": "trial_balance"}),
|
||
);
|
||
assert_eq!(xlsx["content_encoding"], "base64");
|
||
assert!(xlsx["content"].as_str().unwrap().starts_with("UEs"));
|
||
}
|
||
|
||
#[test]
|
||
fn mcp_statement_pdfs_and_cpa_package_over_stdio() {
|
||
use base64::Engine;
|
||
let b64 = base64::engine::general_purpose::STANDARD;
|
||
let dir = test_dir("statement-pdfs");
|
||
let mut mcp = Mcp::spawn(&dir);
|
||
mcp.request(
|
||
"initialize",
|
||
json!({
|
||
"protocolVersion": "2025-06-18",
|
||
"capabilities": {},
|
||
"clientInfo": {"name": "smoke-test", "version": "0.1.0"},
|
||
}),
|
||
);
|
||
mcp.notify("notifications/initialized");
|
||
mcp.call(
|
||
"books.import_chart_csv",
|
||
json!({"csv_text": "code,name,type,parent_code\n1000,Cash,asset,\n3000,Owner Capital,equity,\n6000,Software,expense,\n"}),
|
||
);
|
||
for (desc, debit, credit, amount) in [
|
||
("Owner contribution", "1000", "3000", "1000.00"),
|
||
("Domain", "6000", "1000", "12.00"),
|
||
] {
|
||
let e = mcp.call(
|
||
"books.draft_entry",
|
||
json!({"date": "2026-10-05", "description": desc}),
|
||
);
|
||
let id = e["entry_id"].as_u64().unwrap();
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id, "account": debit, "side": "debit", "amount": amount}),
|
||
);
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id, "account": credit, "side": "credit", "amount": amount}),
|
||
);
|
||
mcp.call(
|
||
"books.attach_receipt",
|
||
json!({"entry_id": id, "file_name": "r.pdf", "mime_type": "application/pdf",
|
||
"content_base64": base64_like(desc.as_bytes())}),
|
||
);
|
||
mcp.call(
|
||
"books.post_entry",
|
||
json!({"entry_id": id, "confirmed": true}),
|
||
);
|
||
}
|
||
|
||
// All three statements export as PDF.
|
||
for (report, extra) in [
|
||
("profit_and_loss", json!({})),
|
||
("balance_sheet", json!({})),
|
||
("cash_flow", json!({"cash_accounts": ["1000"]})),
|
||
("trial_balance", json!({"as_of": "2026-10-31"})),
|
||
] {
|
||
let mut args = json!({"format": "pdf", "report": report});
|
||
args.as_object_mut()
|
||
.unwrap()
|
||
.extend(extra.as_object().unwrap().clone());
|
||
let out = mcp.call("books.export", args);
|
||
assert_eq!(out["content_encoding"], "base64");
|
||
let bytes = b64.decode(out["content"].as_str().unwrap()).unwrap();
|
||
assert!(bytes.starts_with(b"%PDF"), "{report} is not a PDF");
|
||
}
|
||
// The cash flow statement reconciles to named cash accounts: required.
|
||
let err = mcp.call_err(
|
||
"books.export",
|
||
json!({"format": "pdf", "report": "cash_flow"}),
|
||
);
|
||
assert!(err.contains("cash_accounts"), "{err}");
|
||
// The ledger and journal are workbooks, not printable statements.
|
||
let err = mcp.call_err(
|
||
"books.export",
|
||
json!({"format": "pdf", "report": "general_ledger"}),
|
||
);
|
||
assert!(err.contains("not pdf"), "{err}");
|
||
|
||
// The CPA package carries all three statements.
|
||
let err = mcp.call_err("books.export_cpa_package", json!({"as_of": "2026-10-31"}));
|
||
assert!(err.contains("cash_accounts"), "{err}");
|
||
let pkg = mcp.call(
|
||
"books.export_cpa_package",
|
||
json!({"as_of": "2026-10-31", "cash_accounts": ["1000"]}),
|
||
);
|
||
let zip_bytes = b64.decode(pkg["content_base64"].as_str().unwrap()).unwrap();
|
||
let mut zip = zip::ZipArchive::new(std::io::Cursor::new(zip_bytes)).unwrap();
|
||
let mut names: Vec<String> = (0..zip.len())
|
||
.map(|i| zip.by_index(i).unwrap().name().unwrap().to_string())
|
||
.collect();
|
||
names.sort();
|
||
assert_eq!(
|
||
names,
|
||
[
|
||
"balance-sheet.pdf",
|
||
"balance-sheet.xlsx",
|
||
"cash-flow.pdf",
|
||
"cash-flow.xlsx",
|
||
"general-journal.xlsx",
|
||
"general-ledger.xlsx",
|
||
"profit-and-loss.pdf",
|
||
"profit-and-loss.xlsx",
|
||
"tax-summary.pdf",
|
||
"tax-summary.xlsx",
|
||
"trial-balance.pdf",
|
||
"trial-balance.xlsx"
|
||
]
|
||
);
|
||
let mut cf = Vec::new();
|
||
std::io::Read::read_to_end(&mut zip.by_name("cash-flow.pdf").unwrap(), &mut cf).unwrap();
|
||
assert!(cf.starts_with(b"%PDF"));
|
||
}
|
||
|
||
#[test]
|
||
fn mcp_period_statements_over_stdio() {
|
||
let dir = test_dir("period-statements");
|
||
// A rejected receipt policy would show up as a failed post below: the
|
||
// toml lowers the threshold from 25.00 to 5.00.
|
||
let toml = dir.join("wanderbooks.toml");
|
||
std::fs::write(
|
||
&toml,
|
||
"[company]\nname = \"Test Co\"\nfiscal_year_start = \"02-01\"\ntax_classification = \"partnership\"\n[[company.members]]\nname = \"Owner\"\nshare = \"100%\"\ncapital_account = \"3000\"\n[books]\nreceipt_threshold = \"5.00\"\n",
|
||
)
|
||
.unwrap();
|
||
let data = dir.join("books-data");
|
||
let mut mcp = Mcp::spawn_with(
|
||
&data,
|
||
&[std::ffi::OsStr::new("--books-toml"), toml.as_os_str()],
|
||
);
|
||
mcp.request(
|
||
"initialize",
|
||
json!({
|
||
"protocolVersion": "2025-06-18",
|
||
"capabilities": {},
|
||
"clientInfo": {"name": "smoke-test", "version": "0.1.0"},
|
||
}),
|
||
);
|
||
mcp.notify("notifications/initialized");
|
||
mcp.call(
|
||
"books.import_chart_csv",
|
||
json!({"csv_text": "code,name,type,parent_code\n1000,Cash,asset,\n3000,Capital,equity,\n4000,Sales,revenue,\n6000,Software,expense,\n"}),
|
||
);
|
||
let post = |mcp: &mut Mcp, date: &str, dr: &str, cr: &str, amount: &str| {
|
||
let e = mcp.call(
|
||
"books.draft_entry",
|
||
json!({"date": date, "description": "x"}),
|
||
);
|
||
let id = e["entry_id"].as_u64().unwrap();
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id, "account": dr, "side": "debit", "amount": amount}),
|
||
);
|
||
mcp.call(
|
||
"books.add_line",
|
||
json!({"entry_id": id, "account": cr, "side": "credit", "amount": amount}),
|
||
);
|
||
id
|
||
};
|
||
let id = post(&mut mcp, "2026-01-02", "1000", "3000", "1000.00");
|
||
// 1000.00 > 5.00 (the toml threshold): a receipt is required.
|
||
let err = mcp.call_err(
|
||
"books.post_entry",
|
||
json!({"entry_id": id, "confirmed": true}),
|
||
);
|
||
assert!(err.contains("5.00"), "{err}");
|
||
mcp.call(
|
||
"books.attach_receipt",
|
||
json!({"entry_id": id, "file_name": "r.pdf", "mime_type": "application/pdf",
|
||
"content_base64": base64_like(b"r")}),
|
||
);
|
||
mcp.call(
|
||
"books.post_entry",
|
||
json!({"entry_id": id, "confirmed": true}),
|
||
);
|
||
for (date, dr, cr, amt) in [
|
||
("2026-01-20", "1000", "4000", "4.00"),
|
||
("2026-02-05", "6000", "1000", "3.00"),
|
||
("2026-02-09", "1000", "4000", "2.50"),
|
||
] {
|
||
let id = post(&mut mcp, date, dr, cr, amt);
|
||
mcp.call(
|
||
"books.post_entry",
|
||
json!({"entry_id": id, "confirmed": true}),
|
||
);
|
||
}
|
||
|
||
// February only: 2.50 sales, 3.00 software.
|
||
let feb = mcp.call(
|
||
"books.profit_and_loss",
|
||
json!({"start": "2026-02-01", "end": "2026-02-28"}),
|
||
);
|
||
assert_eq!(feb["revenue"], "2.50");
|
||
assert_eq!(feb["expenses"], "3.00");
|
||
assert_eq!(feb["net_income"], "-0.50");
|
||
assert_eq!(feb["expense_accounts"][0]["code"], "6000");
|
||
assert_eq!(feb["expense_accounts"][0]["amount"], "3.00");
|
||
// No start: the statement begins at the first entry, not year 1.
|
||
let all = mcp.call("books.profit_and_loss", json!({"end": "2026-02-28"}));
|
||
assert_eq!(all["start"], "2026-01-02");
|
||
assert_eq!(all["revenue"], "6.50");
|
||
|
||
// As of Jan 31: cash 1,004.00 = capital 1,000.00 + earnings 4.00.
|
||
let jan = mcp.call("books.balance_sheet", json!({"as_of": "2026-01-31"}));
|
||
assert_eq!(jan["assets"], "1004.00");
|
||
assert_eq!(jan["current_earnings"], "4.00");
|
||
assert_eq!(jan["equity_accounts"][0]["amount"], "1000.00");
|
||
assert_eq!(jan["balanced"], true);
|
||
|
||
// Trial balance as of Jan 31: Dr cash 1,004.00 = Cr capital + sales.
|
||
let tb = mcp.call("books.trial_balance", json!({"as_of": "2026-01-31"}));
|
||
assert_eq!(tb["as_of"], "2026-01-31");
|
||
assert_eq!(tb["total_debits"], "1004.00");
|
||
|
||
// General ledger for February: cash starts at 1,004.00, pays 3.00 for
|
||
// software, takes in 2.50 of sales, ends at 1,003.50.
|
||
let gl = mcp.call(
|
||
"books.export",
|
||
json!({"format": "json", "report": "general_ledger", "start": "2026-02-01", "end": "2026-02-28"}),
|
||
);
|
||
let gl: serde_json::Value = serde_json::from_str(gl["content"].as_str().unwrap()).unwrap();
|
||
let cash = &gl["accounts"][0];
|
||
assert_eq!(cash["beginning_balance"], "1004.00");
|
||
assert_eq!(cash["postings"][0]["split"], "6000 Software");
|
||
assert_eq!(cash["postings"][0]["balance"], "1001.00");
|
||
assert_eq!(cash["postings"][1]["split"], "4000 Sales");
|
||
assert_eq!(cash["ending_balance"], "1003.50");
|
||
|
||
// Members' equity, Jan-Feb: the one member contributed 1,000.00 and
|
||
// earned 3.50 (6.50 sales - 3.00 software), ending at balance-sheet
|
||
// equity, 1,003.50.
|
||
let me = mcp.call(
|
||
"books.export",
|
||
json!({"format": "json", "report": "members_equity", "start": "2026-01-01", "end": "2026-02-28"}),
|
||
);
|
||
let me: serde_json::Value = serde_json::from_str(me["content"].as_str().unwrap()).unwrap();
|
||
assert_eq!(me["members"][0]["name"], "Owner");
|
||
assert_eq!(me["total"]["contributions"], "1000.00");
|
||
assert_eq!(me["total"]["net_income"], "3.50");
|
||
assert_eq!(me["total"]["ending"], "1003.50");
|
||
let pdf = mcp.call(
|
||
"books.export",
|
||
json!({"format": "pdf", "report": "members_equity", "end": "2026-02-28"}),
|
||
);
|
||
assert_eq!(pdf["content_encoding"], "base64");
|
||
|
||
// Closing January: a one-member LLC closes into the member's capital
|
||
// account, not Retained Earnings. The preview is exactly what posts.
|
||
let jan = mcp.call(
|
||
"books.create_period",
|
||
json!({"name": "2026-01", "start": "2026-01-01", "end": "2026-01-31"}),
|
||
);
|
||
let jan_id = jan["period_id"].as_u64().unwrap();
|
||
let preview = mcp.call(
|
||
"books.close_period",
|
||
json!({"period_id": jan_id, "confirmed": false}),
|
||
);
|
||
assert_eq!(
|
||
preview["lines"],
|
||
json!(["Debit 4000 4.00", "Credit 3000 4.00"])
|
||
);
|
||
let closed = mcp.call(
|
||
"books.close_period",
|
||
json!({"period_id": jan_id, "confirmed": true}),
|
||
);
|
||
assert_eq!(closed["lines"], preview["lines"]);
|
||
let jan_bs = mcp.call("books.balance_sheet", json!({"as_of": "2026-01-31"}));
|
||
assert_eq!(jan_bs["equity_accounts"][0]["amount"], "1004.00");
|
||
assert_eq!(jan_bs["current_earnings"], "0.00");
|
||
// The close is income, not a contribution.
|
||
let me = mcp.call(
|
||
"books.export",
|
||
json!({"format": "json", "report": "members_equity", "start": "2026-01-01", "end": "2026-01-31"}),
|
||
);
|
||
let me: serde_json::Value = serde_json::from_str(me["content"].as_str().unwrap()).unwrap();
|
||
assert_eq!(me["total"]["contributions"], "1000.00");
|
||
assert_eq!(me["total"]["net_income"], "4.00");
|
||
assert_eq!(me["total"]["ending"], "1004.00");
|
||
|
||
// Tax categories: filtered to the partnership return.
|
||
let cats = mcp.call("books.tax_categories", json!({}));
|
||
assert_eq!(cats["form"], "Form 1065");
|
||
let keys: Vec<&str> = cats["categories"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.map(|c| c["key"].as_str().unwrap())
|
||
.collect();
|
||
assert!(keys.contains(&"guaranteed_payments"));
|
||
assert!(
|
||
!keys.contains(&"officer_compensation"),
|
||
"a corporate category"
|
||
);
|
||
mcp.call(
|
||
"books.set_tax_category",
|
||
json!({"account": "4000", "category": "gross_receipts"}),
|
||
);
|
||
mcp.call(
|
||
"books.set_tax_category",
|
||
json!({"account": "6000", "category": "other_deductions"}),
|
||
);
|
||
let err = mcp.call_err(
|
||
"books.set_tax_category",
|
||
json!({"account": "4000", "category": "meals"}),
|
||
);
|
||
assert!(err.contains("expense"), "{err}");
|
||
let chart = mcp.call("books.chart", json!({}));
|
||
let sales = chart["accounts"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.find(|a| a["code"] == "4000")
|
||
.unwrap()
|
||
.clone();
|
||
assert_eq!(sales["tax_category"], "gross_receipts");
|
||
// Jan-Feb: 6.50 of sales, 3.00 of software, all categorized.
|
||
let ts = mcp.call(
|
||
"books.export",
|
||
json!({"format": "json", "report": "tax_summary", "start": "2026-01-01", "end": "2026-02-28"}),
|
||
);
|
||
let ts: serde_json::Value = serde_json::from_str(ts["content"].as_str().unwrap()).unwrap();
|
||
assert_eq!(ts["form"], "Form 1065");
|
||
assert_eq!(ts["income"][0]["book"], "6.50");
|
||
assert_eq!(ts["deductions"][0]["category"], "other_deductions");
|
||
assert_eq!(ts["uncategorized"].as_array().unwrap().len(), 0);
|
||
assert_eq!(ts["tax_net"], "3.50");
|
||
// A chart import validates categories before creating anything.
|
||
let err = mcp.call_err(
|
||
"books.import_chart_csv",
|
||
json!({"csv_text": "code,name,type,parent_code,tax_category\n6100,Meals,expense,,meals\n4100,Fees,revenue,,commissions_fees\n"}),
|
||
);
|
||
assert!(err.contains("4100"), "{err}");
|
||
let chart = mcp.call("books.chart", json!({}));
|
||
assert!(
|
||
chart["accounts"]
|
||
.as_array()
|
||
.unwrap()
|
||
.iter()
|
||
.all(|a| a["code"] != "6100")
|
||
);
|
||
}
|