From 1b20b7670411a86577010534211c0cd95211714b Mon Sep 17 00:00:00 2001
From: admin <av_progs@mail.ru>
Date: Thu, 20 Aug 2026 08:46:49 +0300
Subject: [PATCH] test: cover account metadata reimport

---
 CHANGELOG.md                                  |  6 ++++
 backend/package.json                          |  3 +-
 .../src/services/import.integration.test.ts   | 31 +++++++++++++++++++
 backend/src/services/import.ts                |  3 +-
 4 files changed, 41 insertions(+), 2 deletions(-)
 create mode 100644 backend/src/services/import.integration.test.ts

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e19a7c5..a4427ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [Backend 0.7.3] - 2026-08-20
+
+### Added
+
+- Added a runnable database integration test for preserving account metadata during re-import.
+
 ## [Frontend 0.10.2 / Backend 0.7.2] - 2026-08-20
 
 ### Fixed
diff --git a/backend/package.json b/backend/package.json
index c60c1a5..ce49764 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@family-budget/backend",
-  "version": "0.7.2",
+  "version": "0.7.3",
   "private": true,
   "scripts": {
     "dev": "tsx watch src/app.ts",
@@ -10,6 +10,7 @@
     "migrate:prod": "node dist/db/migrate.js",
     "test:analytics": "tsx src/services/analyticsSemantics.test.ts",
     "test:analytics:db": "NODE_ENV=test tsx src/services/analytics.integration.test.ts",
+    "test:import:db": "NODE_ENV=test tsx src/services/import.integration.test.ts",
     "test:llm": "tsx src/scripts/testLlm.ts"
   },
   "dependencies": {
diff --git a/backend/src/services/import.integration.test.ts b/backend/src/services/import.integration.test.ts
new file mode 100644
index 0000000..0d7c7b6
--- /dev/null
+++ b/backend/src/services/import.integration.test.ts
@@ -0,0 +1,31 @@
+import assert from 'node:assert/strict';
+import { pool } from '../db/pool';
+import { importStatement } from './import';
+
+const makeStatement = (sourceId: string) => ({
+  schemaVersion: '1.0', bank: 'TEST',
+  statement: { accountNumber: 'metadata-test', currency: 'RUB', openingBalance: 0, closingBalance: 100, exportedAt: '2026-08-20T12:00:00+03:00' },
+  transactions: [{ operationAt: '2026-08-20T10:00:00+03:00', amountSigned: 100, commission: 0, description: 'Пополнение', sourceId }],
+});
+
+async function run(): Promise<void> {
+  const client = await pool.connect();
+  try {
+    const db = { connect: async () => client };
+    await importStatement(makeStatement('first'), db);
+    const account = await client.query("UPDATE accounts SET account_type = 'savings', status = 'closed' WHERE bank = 'TEST' AND account_number = 'metadata-test' RETURNING id");
+    assert.equal(account.rows.length, 1);
+    await importStatement(makeStatement('second'), db);
+    const result = await client.query('SELECT account_type, status FROM accounts WHERE id = $1', [account.rows[0].id]);
+    assert.deepEqual(result.rows[0], { account_type: 'savings', status: 'closed' });
+    console.log('import metadata SQL: OK');
+  } finally {
+    await client.query('DELETE FROM transactions WHERE account_id IN (SELECT id FROM accounts WHERE bank = \'TEST\' AND account_number = \'metadata-test\')');
+    await client.query("DELETE FROM imports WHERE account_id IN (SELECT id FROM accounts WHERE bank = 'TEST' AND account_number = 'metadata-test')");
+    await client.query("DELETE FROM accounts WHERE bank = 'TEST' AND account_number = 'metadata-test'");
+    client.release();
+    await pool.end();
+  }
+}
+
+run();
diff --git a/backend/src/services/import.ts b/backend/src/services/import.ts
index 3d96e55..e9cde1f 100644
--- a/backend/src/services/import.ts
+++ b/backend/src/services/import.ts
@@ -154,6 +154,7 @@ function validateSemantics(data: StatementFile): ValidationError | null {
 
 export async function importStatement(
   body: unknown,
+  db: Pick<typeof pool, 'connect'> = pool,
 ): Promise<ImportStatementResponse | ValidationError> {
   const structErr = validateStructure(body);
   if (structErr) return structErr;
@@ -162,7 +163,7 @@ export async function importStatement(
   const semErr = validateSemantics(data);
   if (semErr) return semErr;
 
-  const client = await pool.connect();
+  const client = await db.connect();
   try {
     await client.query('BEGIN');