fix(database): preserve RDP domain during startup backfill (#1497)

src/backend/tests/database/db/rdp-domain-backfill.test.ts

@@ -0,0 +1,67 @@
+import fs from "fs";
+import os from "os";
+import path from "path";
+import Database from "better-sqlite3";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+
+describe("RDP domain across database boots", () => {
+  let dataDir: string;
+
+  beforeEach(() => {
+    dataDir = fs.mkdtempSync(path.join(os.tmpdir(), "termix-rdp-domain-"));
+    vi.resetModules();
+    vi.stubEnv("DATA_DIR", dataDir);
+    vi.stubEnv("DB_FILE_ENCRYPTION", "false");
+    vi.stubEnv("ALLOW_EMPTY_DATA_DIR", "true");
+  });
+
+  afterEach(() => {
+    vi.unstubAllEnvs();
+    fs.rmSync(dataDir, { recursive: true, force: true });
+  });
+
+  it.each([
+    { saved: "CORP", legacy: null, expected: "CORP" },
+    { saved: "CORP", legacy: "OLD", expected: "CORP" },
+    { saved: "", legacy: "OLD", expected: "" },
+    { saved: null, legacy: "LEGACY", expected: null },
+  ])("preserves $saved with legacy domain $legacy across boots", async ({
+    saved,
+    legacy,
+    expected,
+  }) => {
+    const seed = new Database(":memory:");
+    seed.exec(
+      fs.readFileSync(
+        new URL("../../fixtures/sqlite-2.8-schema.sql", import.meta.url),
+        "utf8",
+      ),
+    );
+    seed.exec(`
+      INSERT INTO users (id, username, password_hash)
+        VALUES ('owner', 'alice', 'hash');
+    `);
+    seed.prepare(`
+      INSERT INTO ssh_data
+        (id, user_id, ip, port, username, auth_type, connection_type,
+         rdp_auth_type, rdp_user, rdp_password, rdp_domain, domain)
+      VALUES (1, 'owner', '192.0.2.1', 3389, '', 'password', 'rdp',
+              'credential', NULL, NULL, ?, ?)
+    `).run(saved, legacy);
+    fs.writeFileSync(path.join(dataDir, "db.sqlite"), seed.serialize());
+    seed.close();
+
+    for (let boot = 0; boot < 2; boot++) {
+      vi.resetModules();
+      const db = await import("../../../database/db/index.js");
+      await db.initializeDatabase();
+      expect(
+        db.getSqlite()
+          .prepare("SELECT rdp_domain FROM ssh_data WHERE id = 1")
+          .pluck()
+          .get(),
+      ).toBe(expected);
+      await db.saveMemoryDatabaseToFile();
+    }
+  });
+});